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STPCC5HEBC - 133MHz x86 Set-Top Box SoC | STMicroelectronics
STPCC5HEBC

STPCC5HEBC - 133MHz x86 Set-Top Box SoC | STMicroelectronics

The STMicroelectronics STPCC5HEBC is an application-specific x86 system-on-chip for set-top boxes and television equipment, operating at 133 MHz and supplied in a 388-ball BGA package. Verified listings also identify external program memory, EBI/EMI, I2C, and IDE connectivity, while describing the device as a PC-compatible information-appliance SoC. These specifications position the component within the embedded processor and application-specific microcontroller hierarchy rather than the general-purpose microcontroller category. An application-specific system-on-chip integrates processor logic and application-oriented interfaces into one high-density device. Unlike a discrete CPU implementation, an SoC can reduce the number of supporting components and consolidate functions needed by set-top and information-appliance products. The STPCC5HEBC combines an x86-compatible processing core with interfaces associated with television and embedded storage systems, making it primarily relevant to legacy and specialized equipment designs. The most significant verified attributes are the 133 MHz operating frequency, x86 instruction-compatible core, 388-BGA package, external program-memory architecture, and support for EBI/EMI, I2C, and IDE. The external-memory arrangement permits program storage to be implemented outside the SoC, while the listed I2C and IDE interfaces support peripheral expansion and storage-controller connectivity. The 388-BGA format provides a high pin count for this mixed embedded platform. Technical interpretation should focus on architecture and board-level integration. Because the STPCC5HEBC is presented as an x86 set-top-box processor, software compatibility depends on the target operating environment and available external memory. Its 133 MHz clock is characteristic of an embedded information-appliance processor rather than a modern desktop CPU. Published source material available in the verified data does not provide complete electrical tables, memory dimensions, voltage ratings, or thermal limits, so those values must be confirmed from the original manufacturer documentation before design release. Typical uses include digital set-top boxes, television controllers, information appliances, and embedded systems that require an x86-compatible execution environment. I2C is useful for low-speed configuration and control peripherals, while IDE-style connectivity can support compatible storage or expansion hardware. External program memory allows system designers to separate executable storage from the processor package, though board routing and memory-controller compatibility remain critical. The principal design consideration is not to substitute the STPCC5HEBC for a modern MCU based only on its BGA package. Pin assignment, ball functions, supply rails, boot behavior, external-memory requirements, and interface voltage levels must be matched exactly to the original system design. Because no verified drop-in substitute was identified, replacement decisions should rely on complete manufacturer documentation rather than generic cross-reference results. This page consolidates the verified distributor and manufacturer-linked data for STPCC5HEBC and clearly separates confirmed facts from unavailable technical details. It also records sourcing, package uncertainty, commercial-data limitations, and the absence of a verified pin-to-pin replacement, providing engineers with a safer basis for legacy set-top-box and television system assessment.

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STPCI2GDYI - 120MHz x86 Graphics SoC | STMicroelectronics
STPCI2GDYI

STPCI2GDYI - 120MHz x86 Graphics SoC | STMicroelectronics

STMicroelectronics STPCI2GDYI is a 120 MHz x86-compatible graphics controller system-on-chip designed for embedded terminal and display systems, supplied in a 516-pin plastic BGA package. The device combines an x86 processor core with a 64-bit SDRAM unified-memory architecture, enhanced 2D graphics, VGA/SVGA CRT controller capability, a 135 MHz RAMDAC, video input processing, an up-scaler, video color-space conversion, and chroma color-key support. These features allow legacy display, video, and computer-oriented functions to be consolidated into one highly integrated terminal SoC. An x86-compatible system-on-chip is an application-specific semiconductor that combines a processor architecture with tightly coupled memory, graphics, and peripheral controllers. In the product hierarchy, STPCI2GDYI is an x86 graphics controller, microprocessor/MPU, system-on-chip, embedded processor, and integrated circuit. Its unified-memory design is significant because the CPU, graphics engine, and video subsystem can operate within a shared memory architecture rather than requiring a conventional separate display-memory interface. The verified product information identifies a 120 MHz x86 core, external program memory support, enhanced 2D graphics, VGA and SVGA output, a 135 MHz RAMDAC, and an integrated video pipeline. The 135 MHz RAMDAC value belongs to the graphics subsystem, while 120 MHz identifies the x86 processor operating frequency; these values describe different internal blocks and should not be interpreted as interchangeable clock specifications. The exact memory organization, I/O standards, electrical limits, operating-temperature range, and power ratings are not included in the supplied source data. STPCI2GDYI is positioned for embedded terminals, thin clients, point-of-sale systems, industrial operator interfaces, and other systems that require PC-compatible instruction-set support with integrated graphics and video capture. Its unified-memory architecture can simplify system design where display, capture, and processing tasks share data. Compared with a discrete CPU-plus-graphics implementation, consolidation can reduce board complexity, although the very large 516-pin BGA requires careful escape routing and a correspondingly complex PCB and assembly process. The most important design constraint is package complexity. A 516-pin BGA is not a hobbyist-scale footprint and normally demands multilayer PCB construction, fine-pitch escape routing, via-in-pad or microvia techniques where appropriate, and controlled reflow profiles. Designers must follow the manufacturer’s pinout, reference layout, power-supply, clock, memory, and graphics-interface requirements exactly; the supplied data does not expose the individual 516 pin assignments. This product page consolidates verified distributor and datasheet-index information, separates the 120 MHz processor clock from the 135 MHz RAMDAC clock, and distinguishes confirmed capabilities from parameters that still require datasheet verification. It also provides selection guidance, application analysis, procurement checks, and a structured view of the unusually large BGA package without inventing electrical specifications, lifecycle details, or drop-in replacements.

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STPCI2HEYC - 133 MHz x86 Terminal SoC | STMicroelectronics
STPCI2HEYC

STPCI2HEYC - 133 MHz x86 Terminal SoC | STMicroelectronics

STMicroelectronics STPCI2HEYC is a 133 MHz x86-compatible PC system-on-chip designed for terminals, graphics controllers, and embedded display systems, supplied in a 516-pin plastic BGA package. It combines a 64-bit bus architecture, a 64-bit DRAM controller, an integrated SVGA graphics controller, a 135 MHz RAMDAC, a video scaler, a digital PAL/NTSC encoder, a video input port, a CRT controller, and a PCI master interface. The part is also identified as the STPC Atlas x86 system-on-chip and is categorized as an application-specific microcontroller with external program memory. An x86-compatible system-on-chip is an integrated processor platform that consolidates a PC-compatible computing core and common peripheral controllers into one device. In the hierarchy of semiconductor solutions, STPCI2HEYC belongs to the x86 microprocessor family, within the broader embedded microprocessor and system-on-chip categories. Unlike a discrete industrial PC, a terminal-oriented SoC can consolidate graphics, video, memory control, and PCI host functionality into one high-pin-count package. This integration supports compact designs intended to drive displays, decode video, and communicate through a PCI-based system architecture. The primary electrical and functional highlights include a stated operating frequency of 133 MHz, a 64-bit internal bus architecture, external program-memory support, and integrated legacy display and video functions. The SVGA controller, 135 MHz RAMDAC, scan converter, and three-line flicker filter are particularly relevant to CRT-based terminal designs. The digital PAL/NTSC encoder expands support for composite video, while the video input and scaler support multimedia signal routing. The PCI master interface allows the SoC to operate as a bus master in a wider embedded platform. Technical selection is tightly coupled to legacy display architecture. The 516-BBGA package is large relative to modern mixed-signal and embedded processors, but it supports the extensive mixed-signal, memory, graphics, PCI, power, and ground connections expected from a PC-compatible terminal SoC. Designers must follow the manufacturer's pinout, reference design, power-supply requirements, memory configuration, and PCB layout guidance exactly. Because this package is not represented in the available SVG library and a complete verified 516-pin assignment is not supplied in the source data, no pin names or electrical limits have been inferred here. Typical uses include industrial terminal controllers, point-of-sale terminals, digital signage controllers, set-top-style appliances, and embedded systems requiring an x86 software environment with integrated graphics and PCI host capability. Its 133 MHz clock reflects a legacy PC-compatible architecture rather than a modern high-performance embedded processor. The integrated graphics and video blocks can reduce the need for separate display adapters in purpose-built equipment, although the complete board still requires carefully designed memory, video output, synchronization, and bus interfaces. The principal design consideration is that STPCI2HEYC is a highly application-specific legacy SoC rather than a general-purpose microcontroller. Board developers should preserve the reference platform's memory topology and signal timing, use supported external devices, and validate display compatibility before production. Procurement should also confirm availability, revision identity, and manufacturing status with the authorized distributor because the verified datasheet listing describes the component as obsolete. This page distinguishes documented capabilities from unavailable details and does not infer electrical characteristics or replacement parts that are not established by the supplied sources. This page consolidates the verified distributor, manufacturer-datasheet-index, and cross-reference search information for STPCI2HEYC, including its documented x86, graphics, video, memory, PCI, package, frequency, and pricing facts. It also identifies the critical engineering data that remains unavailable, preventing unsupported assumptions about pin assignments, power rails, operating temperature, compliance, lifecycle, and direct drop-in replacements.

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STPIC6C595TTR - Power Logic 8-Bit Shift Register 16-TSSOP | ST
STPIC6C595TTR

STPIC6C595TTR - Power Logic 8-Bit Shift Register 16-TSSOP | ST

The STMicroelectronics STPIC6C595TTR is a monolithic medium-voltage, low-current power 8-bit shift register designed for systems that drive moderate loads such as LEDs, relays, and solenoids. The device features eight 100 mA DMOS open-drain outputs with a 33 V output clamp, 4 ohm typical on-resistance, 250 mA current-limit capability per channel, and 30 mJ avalanche energy rating, all packaged in a 16-pin TSSOP with exposed pad for improved thermal dissipation. The serial-in/parallel-out shift register accepts a CMOS-compatible clock and serial data input, includes an output enable, and supports device cascading via a serial data output for multi-chip LED matrix designs. A power logic shift register is a serialized-to-parallel driver that integrates low-RDS(on) DMOS output transistors inside the same die as the shift register logic, eliminating the need for external power transistors, flyback diodes, or current-limiting resistors on every channel. Within the broader taxonomy, the STPIC6C595TTR belongs to the power logic family of integrated drivers, which sits hierarchically between general-purpose logic shift registers (74HC595) and discrete MOSFET arrays. The DMOS outputs include a built-in 33 V inductive-transient clamp, so designers can switch relay coils, solenoids, or long LED strings without adding free-wheeling diodes externally. Key differentiated specifications include 100 mA continuous output current per channel, 4 ohm typical on-resistance at logic-level gate drive, 33 V output clamp voltage for inductive switching, 250 mA current-limit capability, and serial clock rates up to 10 MHz typical. The TSSOP-16 exposed-pad package lowers thermal resistance to approximately 45 C/W on a 1 oz copper 4-layer board, enabling eight outputs to deliver full current simultaneously without a heatsink in well-designed layouts. Architecturally, the device uses a TTL-compatible serial interface and an internal low-side DMOS array. Each output is a current-limited open-drain structure that actively regulates inrush current to about 250 mA when shorted or when switching highly capacitive loads. The combination of shift register, output latch, output enable, and cascadable serial data output makes it a complete serialized power-driver stage in a single small-outline package. Typical applications include dot-matrix LED displays, 7-segment multiplexed LED panels, relay and solenoid matrices, stepper-motor unipolar winding drivers, and generic indicator or signage lighting strips. The wide output-compliance window also suits small incandescent lamps, optocoupler input arrays, and level-shifters for higher-voltage power stages. When routing the PCB, place a 0.1 microfarad decoupling capacitor directly at the VCC pin, route the exposed pad to a generous copper pour, and observe minimal-loop layout rules for the inductive ground return.

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STPM13ATR - Single-Phase Energy Metering IC | STMicroelectronics
STPM13ATR

STPM13ATR - Single-Phase Energy Metering IC | STMicroelectronics

STMicroelectronics STPM13ATR is a single-phase energy metering IC with pulsed output and digital calibration, supplied in a 20-TSSOP package. The verified product listing identifies it as an energy-metering device, while the available distributor description confirms the single-phase meter IC classification and 20-TSSOP package. Its core metering functions are intended for measuring single-phase energy and providing machine-readable output for utility, industrial, and embedded energy-monitoring systems. An energy metering IC is a specialized measurement and control component that converts current and voltage information into accumulated or instantaneous energy-related data. STPM13ATR belongs to the broader hierarchy of energy-metering ICs, measurement semiconductors, analog and mixed-signal integrated circuits, and power-management monitoring devices. Its pulsed output provides a convenient interface for an external counter or system controller, while digital calibration supports configuration and measurement adjustment during manufacturing or system setup. The STPM13 family is described as supporting single-phase energy measurement with sensor inputs suitable for common current-sensing arrangements. The verified listing specifically names shunt, current-transformer, and Rogowski-coil sensors, as well as live and neutral monitoring for STPM13/14 variants. These features allow the device to be evaluated for different meter architectures, but the exact electrical limits, calibration procedure, register map, and timing values must be taken from the manufacturer datasheet. STPM13ATR is packaged in a 20-TSSOP surface-mount package. The package provides a compact form factor for meter electronics, and the available DigiKey result lists the part as a 20-TSSOP single-phase meter IC. Because the supplied data does not include the full electrical tables or a verified pin diagram, individual pin assignments and absolute minimum or maximum ratings are not reproduced here. The manufacturer datasheet should be consulted before PCB routing or production qualification. Typical applications include single-phase residential electricity meters, industrial energy-monitoring equipment, smart-meter power calculations, load-monitoring modules, and embedded systems that consume pulse information. The pulsed output can be connected to a counter, capture input, or energy-management controller. The choice of current sensor and the calibration strategy remain important design decisions because they influence signal conditioning, measurement accuracy, and metrology validation. For a new design, verify the exact STPM13ATR variant, supply requirements, sensor-input configuration, pulse-output behavior, and package pinout against the official STMicroelectronics datasheet. This page combines the verified distributor classification, package information, and family-level feature description with practical sourcing and design guidance.

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STPM33TR - Dual 24-Bit Energy Metering AFE | STMicroelectronics
STPM33TR

STPM33TR - Dual 24-Bit Energy Metering AFE | STMicroelectronics

The STMicroelectronics STPM33TR is a dual single-phase energy-metering application-specific standard product with up to four independent 24-bit second-order sigma-delta ADCs, a 4 MHz oscillator, and two embedded programmable-gain low-noise amplifiers in a 32-QFN 5 x 5 mm package. Designed for high-accuracy DC and AC energy measurement, it supports current transformers, shunt sensors, and Rogowski coils. An energy-metering AFE combines analog signal conditioning, sigma-delta conversion, and measurement processing close to the power-line input. Within the hierarchy of analog front ends, energy-metering ICs, data converters, and power-management semiconductors, this device reduces the need for separate precision converters and preserves low-noise current measurement down to appliance standby levels. The verified device description identifies up to four independent 24-bit second-order sigma-delta ADC channels and two embedded PGLNAs. A 4 MHz oscillator provides the timing reference for the conversion system, while the high-resolution channels support accurate voltage, current, active-energy, and reactive-energy calculations. The 32-QFN package supports compact meter designs without requiring a larger through-hole footprint. The STPM3x family is specifically designed for power-line energy measurement using Rogowski-coil, current-transformer, or shunt-current sensors. By integrating measurement channels and analog gain around the sensor interface, the device helps simplify calibration and reduce sensitive high-impedance routing between external analog circuitry and a metering MCU. Typical uses include single-phase residential electricity meters, smart meters, industrial energy monitors, appliance sub-metering, power-factor monitoring, and DC energy measurement. The same AFE architecture can be used where the design must measure very low current levels, including equipment that spends substantial time in standby. PCB implementation should follow the manufacturer datasheet for QFN thermal-pad assembly, analog grounding, sensor filtering, and exposed-pad connection. Input protection and isolation are application-specific and cannot be assumed from the listed operating range. Before layout release, confirm every pin, voltage, current, accuracy, and calibration parameter against the official STMicroelectronics datasheet. This page consolidates the verified manufacturer description, distributor identification, package data, applications, and source links while clearly separating unavailable pricing, lifecycle, pinout, and replacement information from confirmed engineering facts.

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STPM34TR - 4-ADC 24-Bit Energy Meter AFE | STMicroelectronics
STPM34TR

STPM34TR - 4-ADC 24-Bit Energy Meter AFE | STMicroelectronics

The STMicroelectronics STPM34TR is an energy-metering application-specific standard product with four independent 24-bit, second-order sigma-delta ADCs, 4 MHz oversampling and two embedded programmable-gain low-noise amplifiers, supplied in a 32-pin QFN package with exposed pad. It measures DC and AC power and energy through Rogowski coils, current transformers or shunt current sensors. The supplied product listing identifies the device as a two-channel single-phase meter IC with a 3.3 V-class supply and a 5 x 5 mm footprint. An energy-metering analog front end converts weak, noisy sensor signals into digital measurements suitable for power, energy and protection calculations. Unlike a general-purpose ADC, the STPM3x family integrates metering-specific channels, programmable gain, references and signal conditioning. It supports power-line measurement systems using Rogowski coils, current transformers or shunts, with the sensor choice determining bandwidth, isolation, accuracy and PCB complexity. The four 24-bit second-order sigma-delta channels provide high-resolution acquisition for multiple voltage and current inputs. A 4 MHz oversampling mode can improve conversion performance, while two embedded PGLNAs reduce the need for separate low-noise gain stages in suitable signal paths. Independent reference and channel shutdown controls provide a route to lower power consumption when not every measurement channel is continuously required. The operating supply is verified at 2.95 V to 3.65 V. Distributor and technical listings identify the industrial temperature range as -40°C to +105°C, and the package as a 5 x 5 mm QFN-32 with exposed thermal pad. The exposed pad must be connected to the appropriate ground plane and handled with the thermal layout requirements specified by the manufacturer datasheet. Typical applications include single-phase and three-phase energy meters, utility-grade residential metering, industrial power monitors, appliance energy measurement, solar and building-energy monitoring, and systems using Rogowski coils or isolated current transformers. The STPM34TR is particularly appropriate when the design requires multiple high-resolution measurements and dedicated metering signal conditioning rather than a general-purpose data converter. For a new design, verify sensor compatibility, channel assignment, reference configuration, gain settings, calibration method and exposed-pad thermal management against the manufacturer datasheet before layout. The cited web data does not provide a verified unit price, stock quantity, detailed pin names, RoHS declaration, REACH declaration or automotive qualification status. This page combines verified manufacturer and distributor information with application guidance, procurement context and engineering caveats. Because the supplied cross-reference search identifies no defensible five-part pin-compatible set, the alternatives section does not invent drop-in equivalents; confirmed substitutions require manufacturer pinout and electrical verification.

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STPMS1BPQR - Dual-Channel Smart Sensor | STMicroelectronics
STPMS1BPQR

STPMS1BPQR - Dual-Channel Smart Sensor | STMicroelectronics

The STMicroelectronics STPMS1BPQR is a dual-channel smart sensor IC with two 1-bit, 2 MHz, first-order sigma-delta modulators and an embedded programmable-gain amplifier, housed in a 16-QFN 3 x 3 mm package. It accepts analog sensor inputs and provides digital outputs for measurement systems using Rogowski coils, current transformers, or shunts. Its stated operating supply range is 3.2 V to 5.5 V. A smart sensor interface IC is an application-specific signal-processing device that converts a physical sensor signal into a digital representation. The STPMS1BPQR belongs to the sensor and detector interface hierarchy, combining analog input conditioning, sigma-delta modulation, and digital output signaling in one package. This integration is intended for effective measurement in power-line systems, particularly where current-derived signals require conditioning before digital processing. Each channel uses a 1-bit, first-order sigma-delta modulator operating at 2 MHz. The device also incorporates an embedded PGA, allowing signal gain to be selected for the applied sensor signal. These features make the STPMS1BPQR suitable for compact current-measurement front ends rather than general-purpose analog-to-digital conversion. Its analog input and digital output architecture keeps sensor conditioning close to the measurement source. The 16-QFN package measures 3 x 3 mm and is supplied in tape-and-reel packaging according to the verified distributor data. The exposed-pad package designation is identified in the product listings. Package dimensions and exposed-pad dimensions were not included in the supplied source data, so those physical values should be confirmed against the manufacturer datasheet before a PCB footprint is released. Typical applications include electronic power meters, energy-metering equipment, industrial current monitoring, and protection systems using Rogowski coils or current transformers. The STPMS1BPQR can also serve as the analog front end for shunt-based measurements when its input and gain requirements match the selected sensor. Digital downstream processing requires an appropriate clock and companion calculation or control circuitry. The most important design consideration is signal conditioning. The selected gain must accommodate the sensor output without overloading the analog inputs, and the 2 MHz modulation rate requires a compatible digital clock and filtering strategy. PCB layout should keep sensitive analog inputs away from digital return currents, while the exposed pad requires adequate thermal and electrical copper treatment. This page consolidates the verified distributor specifications, package information, sourcing links, and engineering guidance for the STPMS1BPQR. It also explicitly separates documented facts from unavailable pricing, pin mapping, and substitution data, allowing engineers to make sourcing and design decisions without relying on unverified assumptions.

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STPMS2H-PUR - Dual-Channel 4 MHz Smart Sensor IC | STMicroelectronics
STPMS2H-PUR

STPMS2H-PUR - Dual-Channel 4 MHz Smart Sensor IC | STMicroelectronics

The STMicroelectronics STPMS2H-PUR is a smart sensor interface IC containing two 1-bit, second-order sigma-delta modulators operating at 4 MHz, with embedded programmable-gain low-noise amplifiers, in a 16-QFN 4 x 4 mm surface-mount package. It accepts analog sensor inputs and converts them into digital 1-bit streams for downstream processing. The device operates from a 5.5 V supply and is identified by DigiKey as a sensor and detector interface with analog input and digital output. A smart sensor interface is a specialized analog front end that sits between physical sensors and a digital controller. Its functional hierarchy is sensor interface, analog front end, sigma-delta modulator, signal-conversion IC, and integrated circuit. By converting analog quantities into bit streams early in the signal chain, the STPMS2H-PUR supports compact sensing systems in which sensing, modulation, and digital processing are partitioned between analog and digital stages. The STPMS2H-PUR provides two independent 1-bit modulator channels, a 4 MHz clock, and second-order sigma-delta modulation with embedded PGLNA sections. These features make it applicable to high-resolution sensing architectures where analog amplification and conversion must coexist in a compact package. The 16-VFQFN package includes an exposed pad and uses a 0.65 mm terminal pitch for high-density surface-mount assembly. Its analog-to-digital conversion architecture employs second-order sigma-delta modulation rather than a conventional multi-bit SAR or flash converter. Two 1-bit output streams can be combined digitally to preserve resolution while limiting the analog output-node count. The embedded PGLNA blocks reduce the amount of separate gain-stage circuitry needed for low-level sensor signals, although gain settings and signal-chain limits should be confirmed against the manufacturer datasheet. Typical uses include industrial condition monitoring, resistive or bridge-based sensing, compact pressure or position sensing, and low-power acquisition modules that feed a microcontroller or dedicated digital filter. The industrial temperature grade and surface-mount construction suit equipment intended for controlled industrial environments rather than extended automotive qualification. When laying out a design, treat the exposed pad as a thermal and electrical connection to the PCB rather than a no-connect area. Keep analog inputs short, maintain the datasheet-specified input filtering and grounding topology, and provide local supply bypassing close to the package pins. Confirm gain, calibration, and output-data handling against the manufacturer documentation before production release.

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STPMS2L-PUR - Dual-Channel 1-Bit 4 MHz Smart Sensor | STMicroelectronics
STPMS2L-PUR

STPMS2L-PUR - Dual-Channel 1-Bit 4 MHz Smart Sensor | STMicroelectronics

The STMicroelectronics STPMS2L-PUR is a Smart Sensor II application-specific standard product for analog-input, digital-output power-line measurement, featuring two measuring channels, a 1-bit output at 4 MHz, and a 16-QFN 4 x 4 mm package. The device accepts signals from Rogowski coils, current transformers, Hall sensors, and shunt resistors through a programmable gain-low-noise amplifier architecture. A smart sensor is an application-specific IC that combines analog signal conditioning with digital conversion and control functions. The STPMS2 belongs to the signal-chain hierarchy of sensor interface ICs, analog-to-digital converters, power-management ICs, and general-purpose semiconductors. Its primary role is to convert small analog current or voltage measurements into a digital bitstream that can be filtered or processed by a microcontroller, DSP, or dedicated digital engine. The verified product information identifies two second-order sigma-delta modulators operating at 4 MHz, non-overlapping control-signal generation, and an embedded programmable-gain low-noise amplifier. A temperature-compensated band-gap reference, a low-drop supply-voltage stabilizer, and built-in self-test structures support accurate and dependable measurements. The supplied operating-voltage information specifies a 5.5 V supply limit, while the detailed operating range requires confirmation from the manufacturer datasheet. Each analog measuring channel converts its conditioned input into a 1-bit digital stream. Second-order sigma-delta modulation shapes quantization noise away from the measurement band, allowing digital filtering to recover a useful low-resolution representation. The dual-channel architecture supports simultaneous or interleaved measurements where system accuracy, synchronization, channel matching, and interference rejection are important design considerations. Typical uses include electronic power meters, energy-metering equipment, smart-grid sensing, industrial power monitoring, current-transformer signal conditioning, and systems using Rogowski coils, Hall sensors, or low-ohm shunt resistors. In these systems, the STPMS2 reduces the need for separate analog front-end blocks while providing a compact interface between analog sensors and digital processing. A critical design step is to verify the complete pinout, exposed-pad connection, clocking method, digital output protocol, input range, gain settings, and recommended filtering directly against the manufacturer datasheet. The supplied search results establish the device family and package but do not expose the complete electrical table, so those implementation details must not be inferred from generic smart-sensor designs. This page consolidates the verified manufacturer and distributor descriptions, distinguishes published facts from missing datasheet parameters, documents sourcing and package constraints, and provides practical application guidance. It is intended to help engineers identify the correct sensor interface and plan validation without presenting unverified electrical values as manufacturer specifications.

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STR731FV2T6 - ARM7TDMI 32-bit MCU 256KB Flash | STMicroelectronics
STR731FV2T6

STR731FV2T6 - ARM7TDMI 32-bit MCU 256KB Flash | STMicroelectronics

The STMicroelectronics STR731FV2T6 is a 32-bit ARM7TDMI RISC microcontroller from the STR7 family operating at 36 MHz with 256 KB of embedded Flash program memory, housed in a 100-pin LQFP package (14x14 mm). It integrates a rich communications peripheral set including 3 CAN 2.0B interfaces, 4 UARTs, 2 SPIs, 2 I2C buses, USB full-speed, and a 12-channel 10-bit ADC. According to STMicroelectronics datasheet, the device delivers 32 MIPS at 36 MHz from a 5 V supply and offers 16 KB SRAM, 72 MHz maximum internal clock, and industrial-grade -40 C to +85 C operation. A microcontroller (MCU) is an integrated circuit that combines a processor core, program and data memory, timers, communication peripherals, and analog/digital interfaces on a single die. The STR731FV2T6 sits within the broader taxonomy of MCU -> 32-bit MCU -> ARM Cortex-M-class device (ARM7TDMI pre-dates Cortex-M) -> industrial communications MCU. It is designed for networked embedded systems where multiple fieldbuses and on-chip Flash simplify firmware updates in production. Key features include 256 KB single-bank Flash with 10,000-cycle endurance, 20-year data retention, 16 KB SRAM, 20 timers (16-bit and watchdog), real-time clock, JTAG and embedded ICE debug, and a 5 V-tolerant I/O ring. The 10-bit ADC offers 12 input channels and conversion speeds up to 1 us. The 100-pin LQFP package provides a 0.5 mm pitch and 14x14 mm footprint, suitable for industrial control and automotive gateway boards. Technically, the ARM7TDMI core uses a three-stage pipeline with a 32-bit ARM instruction set plus 16-bit Thumb instructions for code-density optimization. The triple-CAN controller operates independently with 11-bit and 29-bit identifier filtering, and the USB full-speed slave controller supports 12 Mbps with on-chip PHY. Industrial-grade EMC, ESD protection, and wide supply tolerance (4.5 V to 5.5 V) suit harsh environments requiring extended reliability. Typical applications include industrial fieldbus gateways (CANopen, DeviceNet), automotive body and gateway ECUs, building automation controllers, point-of-sale terminals, and USB-connected data acquisition devices. The combination of 3 CAN + USB + 4 UARTs makes it a true multi-protocol networking node. Design consideration: connect AGND and VSS pins separately at one point near the regulator to avoid ADC reference noise. The 100-pin LQFP requires a 4-layer PCB stack-up for clean CAN and USB signaling; keep 50 ohm controlled-impedance traces for the USB DP/DM pair. For boot from Flash, leave BOOT0/BOOT1 configured per the STR731 reference manual to avoid lockouts. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes not found in the manufacturer datasheet.

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STR912FAW44X6 - ARM966E-S MCU 96MHz 512KB Flash LQFP-128
STR912FAW44X6

STR912FAW44X6 - ARM966E-S MCU 96MHz 512KB Flash LQFP-128

The STMicroelectronics STR912FAW44X6 is a 16/32-bit ARM966E-S RISC microcontroller operating up to 96 MHz, integrating 512 KB of dual-bank Flash and 96 KB SRAM, and packaged in a 128-pin LQFP. It is designed for embedded applications requiring on-chip Ethernet MAC, USB 2.0 Full-Speed, CAN, and AC motor control peripherals in a single ARM9-class device. An ARM9-based microcontroller is a 32-bit RISC processor with a Harvard architecture, vectored interrupts, and a rich peripheral set, suitable for real-time control and connected embedded systems. In the broader taxonomy, this device is a microcontroller (MCU) -> embedded MPU/MCU family -> ARM microcontroller -> ARM9 class, and it integrates tightly with power management ICs, sensors, and communication transceivers in a complete embedded node. Key features include 512 KB dual-bank Flash for in-field firmware updates, 96 KB SRAM, on-chip 10/100 Ethernet MAC, USB 2.0 Full-Speed with on-chip PHY, two CAN 2.0B controllers, four 16-bit timers, and a motor-control PWM unit. Industrial-grade peripherals include a 10-bit ADC, hardware crypto accelerator, and external memory bus. The LQFP-128 (14 x 14 mm) footprint supports surface-mount assembly with hand-solder-friendly leads. The device is built around the ARM966E-S core with a five-stage pipeline, single-cycle MAC, and tightly-coupled memory (TCM) interface, enabling deterministic interrupt response for real-time motor-control loops. Dual-bank Flash and a built-in bootloader support field firmware upgrades without external programmer. Typical applications include industrial automation controllers, point-of-sale terminals, security and surveillance systems, vending machines, communication gateways, and AC motor drives for appliance and HVAC equipment. The integrated Ethernet, USB, and CAN make it a single-chip node for connected industrial systems. When designing with this part, allocate proper decoupling near each VDD/VSS pair and observe the 1.8 V core / 3.3 V I/O supply sequencing. Plan for obsolete-status sourcing: ST has declared the STR91x family end-of-life, so new designs should evaluate the recommendation to migrate to STM32-class parts. This page synthesizes distributor pricing, drop-in alternative MPNs, and practical design notes not found in a single datasheet or distributor page.

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STULPI01BTBR - USB 2.0 ULPI OTG Transceiver, 36-TFBGA | ST
STULPI01BTBR

STULPI01BTBR - USB 2.0 ULPI OTG Transceiver, 36-TFBGA | ST

The STMicroelectronics STULPI01BTBR is a high-speed USB 2.0 physical-layer transceiver that is fully compliant with the ULPI (UTMI+ Low Pin Interface) specification and the USB On-The-Go (OTG) supplement, providing a complete PHY solution for any high-speed USB host, device, or OTG dual-role controller core operating at 480 Mbps. Housed in a compact 36-ball TFBGA (3.5 x 3.5 mm) package, the device implements the UTMI+ low-pin-count 12-pin bridge to the application ASIC, dramatically reducing the SoC I/O count required for USB connectivity compared to legacy UTMI designs that needed 30+ pins. A USB 2.0 transceiver (also called a USB PHY) is the analog front-end of a USB system, handling the high-speed differential signaling on the DP/DM lines, the low-/full-speed termination, the 1.5 kohm pull-up for device detection, the 15 kohm pull-down on the host side, the OTG session-request comparator, and the charge-pump for VBUS drive. The STULPI01B sits in the hierarchy: USB transceiver (PHY) -> USB interface IC -> interface and transceiver -> semiconductor, and is typically paired with an application processor that implements the upper protocol layers over the ULPI link. Key features include 480 Mbps High-Speed (HS), 12 Mbps Full-Speed (FS), and 1.5 Mbps Low-Speed (LS) operation; integrated 45 ohm Hi-Speed termination and switching between HS and FS/LS terminations; 8-bit SDR ULPI interface operating at 60 MHz; integrated charge pump for OTG VBUS pulsing; on-chip pull-up/pull-down resistors for DP/DM; host, device, and OTG dual-role modes selectable via the ULPI ID pin; I/O supply 1.8 V to 3.3 V; and a 3.0 V to 4.5 V analog supply rail. The chip supports suspend, resume, remote wakeup, and chirp handshake generation required for HS negotiation. Technically the PHY uses a precise 480 MHz PLL locked to the 60 MHz ULPI clock, an HS current-mode driver with controlled edge rates for USB IF compliance, a 3.3 V tolerant ULPI link, and on-die ESD protection on the DP/DM lines. By outsourcing the analog and analog-digital mixed-signal PHY to the STULPI01B, designers can implement the USB digital controller in their standard-cell ASIC or FPGA fabric without requiring an expensive analog process node, which is why this architecture is dominant in mobile, set-top, and automotive infotainment silicon. Typical applications include USB OTG dual-role ports in smartphones, tablets, and portable media players, USB device ports in printers and storage, USB host capability in set-top boxes and automotive head units, USB-to-UART bridge ASICs, and embedded computing platforms that add USB to an FPGA or microcontroller without an internal PHY. The BGA package and small footprint suit 4-layer mobile mainboards where board area is at a premium. When laying out a board using the STULPI01BTBR, place the device as close as possible to the USB connector, keep DP/DM traces matched to 90 ohm differential impedance, and provide a clean analog 3.3 V supply decoupled with a 100 nF + 4.7 uF combination within 5 mm of the VCC pin. The ULPI bus to the SoC should be length-matched and routed over a continuous reference plane to preserve 60 MHz SDR timing margin. This page synthesizes distributor pricing, drop-in same-family and cross-brand ULPI alternatives, and layout notes not collected in a single place on the manufacturer datasheet, giving hardware engineers a one-stop reference for USB OTG PHY selection.

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STUSB1600 - USB Type-C Controller with HV Protection | STMicroelectronics
STUSB1600

STUSB1600 - USB Type-C Controller with HV Protection | STMicroelectronics

The STMicroelectronics STUSB1600 is a standalone USB Type-C port controller IC, fully compliant with the USB Type-C cable and connector specification (rev. 1.2), housed in a 24-pin QFN (4x4 mm) package. It integrates 5 V VBUS management, attach and orientation detection, VCONN supply for electronically marked cables, and short-to-VBUS protection on the configuration channel (CC) lines for both host-side and device-side USB Type-C implementations. An interface controller IC such as the STUSB1600 sits in the USB Type-C protocol stack between the USB host/device controller (e.g., a USB-PD or USB 3.x controller) and the physical Type-C receptacle. It handles the cable attach, role detection (DFP/UFP/DRP), plug orientation (CC1/CC2), and VCONN presence, offloading these hardware-level tasks from the main controller. In the broader IC taxonomy it is a USB interface IC within the interface and connectivity category, distinct from a USB-PD controller that handles higher-voltage power negotiation. Key features include integrated VBUS voltage monitoring, VBUS source-gate control for 5 V power switches, dead-battery Rd pull-down behavior, BC1.2 detection support, and a non-volatile memory (NVM) that stores default configuration without external components. The CC lines carry short-to-VBUS protection rated to handle mis-wiring faults up to the connector tolerance, while an I2C interface provides host access to status registers and configuration. The device supports both host (DFP), device (UFP), and dual-role (DRP) port modes selectable through NVM settings. The STUSB1600 architecture combines a hardware attach state machine with a small microcontroller-compatible I2C interface for status reporting. Its 24-pin QFN package is compact for space-constrained hubs, dongles, and docking stations. Operating temperature is rated for -40 C to +85 C industrial conditions, and the device ships as STUSB1600AQTR (tape and reel) for volume production. Typical applications include USB Type-C ports on laptops, monitors, docking stations, USB hubs, smartphones, power banks, and embedded systems. Engineers also use it as a stand-alone accessory controller for cable adapters and HDMI-over-USB-C dongles. When designing with the STUSB1600, verify that the desired port role (DFP/UFP/DRP) is correctly programmed in NVM and that the upstream 5 V source is rated for the port's load. Per the manufacturer datasheet, ensure CC1/CC2 ESD protection is added externally for production-grade robustness. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers evaluate the STUSB1600 for new designs and existing BOM migrations.

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STUSB4500LBJR - USB Type-C Sink PD Controller, 25-WLCSP | ST
STUSB4500LBJR

STUSB4500LBJR - USB Type-C Sink PD Controller, 25-WLCSP | ST

The STMicroelectronics STUSB4500LBJR is a standalone USB Type-C port controller for power-sinking devices, presented in a 25-ball WLCSP package (2.59 x 2.59 mm). It implements USB Power Delivery 2.0 sink negotiation up to 20 V / 5 A (100 W) over the USB Type-C connector and integrates an I2C interface for host configuration, VBUS monitoring, and OVP/OCP protection. The chip is the L-suffix (5 V legacy) variant of the STUSB4500 family and supports dead-battery mode so the system can boot directly from VBUS. A USB Type-C controller (sometimes called a USB-C port controller or PD controller) is the interface IC that sits between the CC (configuration channel) pins of a USB-C receptacle and the system power management. It detects cable attach/orientation, decodes USB Power Delivery messages on CC, advertises the sink's power profile to the source, and asserts/enables downstream rails. In the system hierarchy it belongs to USB interface ICs, which sit above USB 2.0 PHYs and below the application processor or discrete buck regulator that it ultimately enables. Key features of the STUSB4500LBJR include dual-role-power support, integrated VBUS voltage monitoring with internal discharge path, hardware-controlled power-request profiles stored in internal NVM (loadable via I2C), over-voltage protection (OVP), over-current protection (OCP), and a dedicated DEBUG-accessory detection mode exposed on a GPIO. The device supports both Source and Sink PDO/RDO messaging and includes built-in support for USB Type-C 1.3 and USB PD 2.0 revision 2.0. Operating supply range is 3.0 V to 5.5 V on VDD, with VBUS tolerated up to 22 V for transient robustness. Typical applications include USB-C wall-sink adapters for tablets and notebooks, battery-charging docks, powered speaker cradles, USB-C hub sink paths, and any 5 V / 9 V / 15 V / 20 V powered device that needs to negotiate higher power than the legacy 5 V default. Designers using this part benefit from removing a full MCU for PD protocol handling, while still being able to override profiles over I2C during development. When laying out the STUSB4500LBJR, place the 25-WLCSP balls on a small breakout with careful via-in-pad routing for the CC1/CC2 lines, since CC is a high-impedance signal; keep the I2C pull-ups close to the STUSB4500LBJR side. Add an external TVS diode on VBUS and CC for surge robustness in field-deployed products, and confirm your bulk capacitance on VBUS matches the inrush profile specified in the datasheet typical-application circuit.

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STUSB4500LQTR - USB Type-C Sink Controller, 5V/3A, 24-QFN | STMicroelectronics
STUSB4500LQTR

STUSB4500LQTR - USB Type-C Sink Controller, 5V/3A, 24-QFN | STMicroelectronics

The STMicroelectronics STUSB4500LQTR is a standalone USB Type-C cable-connect controller and Power Delivery sink controller IC that targets 5 V sink applications up to 3 A (15 W). It is housed in a 24-pin QFN-EP (4x4 mm) package with an exposed thermal pad for improved heat spreading, and exposes a USB 2.0 billboard interface via an I2C control port. What is a USB Type-C sink controller? A sink controller is the side of a USB Type-C connection that receives power from a Type-C source (such as a laptop, charger, or power bank). It negotiates the voltage and current level allowed by the attached source using the USB Power Delivery (PD) protocol, then presents that negotiated voltage on its VBUS rail. The STUSB4500L is a "standalone" controller: it requires no external MCU to negotiate a PD contract, which simplifies the BOM and firmware for power-only sink devices such as docking stations, charging cradles, and USB-powered appliances. Key features include dead-battery support (a system can draw power directly from VBUS before software initializes), 5 V legacy detection, GPIO pin for debug accessory detection, integrated VBUS discharge paths, and I2C programmable source capability (PDOs) such as 5 V @ 3 A, 9 V @ 2 A, 12 V @ 2.25 A, and higher via PD 2.0/3.0 negotiation. The 4x4 mm QFN-EP footprint occupies only ~16 mm^2 of board space, making this part attractive for compact form factors. Typical applications include USB-PD powered hard-disk enclosures, USB Type-C powered speakers, industrial controllers drawing bus power, smart-home hubs with PD input, notebook replacement chargers, and USB-PD powered LED lighting. Automotive-grade variant is separately available as STUSB4500QTR. Design consideration: when using STUSB4500LQTR, ensure the CC1/CC2 pins have the correct Rd pull-down resistors and that the VBUS sense network matches your system's sink current limit. Provide adequate copper area beneath the exposed pad for thermal relief under sustained 3 A loads. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet. Specifications cross-checked against ST datasheet 2026-10-20.

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STUSB4500QTR - Standalone USB PD Sink Controller, 100W, 24-QFN | STMicroelectronics
STUSB4500QTR

STUSB4500QTR - Standalone USB PD Sink Controller, 100W, 24-QFN | STMicroelectronics

The STMicroelectronics STUSB4500QTR is a standalone USB Type-C and USB Power Delivery (PD) sink controller that negotiates PD contracts up to 100W (20V/5A) without MCU support, housed in a 24-pin QFN (4x4 mm) package with exposed pad. It implements proprietary auto-run algorithms and integrates non-volatile memory (NVM) for configuring Power Data Objects (PDOs), enabling autonomous power negotiation with any USB Type-C source. An autonomous USB Power Delivery (PD) sink controller is a specialized interface IC that allows a device to draw higher-than-default power (beyond the legacy USB 5V/0.9A baseline) through a USB Type-C connector. The STUSB4500QTR occupies the position of sink-side protocol layer within the USB-C ecosystem, sitting between the CC logic of the Type-C receptacle and the downstream DC-DC converter or load switch. It belongs to the broader USB interface IC category, a subset of wired connectivity controllers. Key features include support for 5V, 9V, 12V, 15V, and 20V PDOs at 5A maximum, integrated short-to-VBUS protection on CC pins (VCONN- and CC1/CC2 tolerant up to 22V), dead-battery signaling for unpowered sinks, and an I2C interface for host configuration and telemetry access. The device is USB-IF certified (TID 1074413) for USB Type-C R2.1 and USB Power Delivery R3.0 compliance, simplifying certification of the end product. Technically, the STUSB4500QTR combines a USB PD R3.0 physical layer (BMC-encoded on CC), a protocol layer state machine, an embedded 5V LDO for internal supply, and 32-byte user-configurable NVM. It offers dual-mode USB power delivery alongside legacy USB 5V fallback and supports both standard Power Delivery and the proprietary PPS (Programmable Power Supply) source negotiation through the high-resolution request message. Typical applications include USB-C powered monitors and docking stations, fast-charging smartphones and tablets, IoT gateways, industrial single-board computers, and any product migrating from legacy DC barrel jacks to USB-C. The wide-input tolerance makes it equally suited to 5V-only low-power devices and 20V/5A 100W laptops. When designing with the STUSB4500QTR, ensure the downstream sink path can handle the negotiated current up to 5A on VBUS. Use 4-wire VBUS routing on the PCB, and decouple the VCC pin with at least 1uF X7R ceramic capacitance close to the exposed thermal pad, which must be soldered to a continuous ground plane for thermal dissipation and short-to-VBUS protection immunity. This page synthesizes distributor stock data, drop-in alternatives, application notes, and practical design considerations not aggregated on the manufacturer product page or any single distributor listing.

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STUSB4710AQ1TR - USB PD Source Controller QFN-16 | ST
STUSB4710AQ1TR

STUSB4710AQ1TR - USB PD Source Controller QFN-16 | ST

The STMicroelectronics STUSB4710AQ1TR is a stand-alone autonomous USB Type-C and USB Power Delivery (PD) source controller with an integrated VBUS discharge path and short-to-VBUS protection, housed in a 16-pin QFN (3x3 mm) package. It operates from a 4.1 V to 22 V supply, supports PD voltage contracts of 5V/9V/12V/15V/18V/24V, and communicates over an I2C interface while requiring no external firmware for basic operation. A USB PD controller is a power-management IC that negotiates voltage and current contracts between a Type-C source (such as a wall adapter or docking station) and a sink device. Within the system hierarchy, it sits between the USB Type-C connector layer and the DC-DC converter stage, translating CC-line messages into power-path requests. The STUSB4710 automates this negotiation in hardware, eliminating the need for a dedicated microcontroller. Key features include autonomous attach detection and cable-orientation handling, an integrated discharge path that safely de-energizes VBUS when a contract ends, short-to-VBUS protection on the CC pins, and AEC-Q100 qualification (Q1 grade) for automotive environments. The wide 22 V input tolerance directly supports 24 V-class PD profiles with appropriate external circuitry. Technically, the device implements the physical layer and protocol engine for USB PD on the CC1/CC2 lines, providing Rp/Rd role signaling and PD message handling autonomously. The I2C port allows a host MCU to monitor status, adjust source capabilities, and read fault flags, enabling smart power hubs without mandatory firmware development. Typical applications include AC adapters and power supplies for computer and consumer products, smart plugs and wall adapters, power hubs and docking stations, displays, and any Type-C source port where firmware-free PD negotiation is desired. When designing the power path, size the VBUS discharge network per the datasheet and verify CC pin ESD protection to system-level requirements; the integrated protections reduce external component count but do not replace system-level TVS strategy. This page synthesizes distributor pricing, availability, drop-in alternative guidance, and practical design notes not found in the manufacturer datasheet.

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STW81100AT-1 - 4.4GHz RF Synthesizer | STMicroelectronics
STW81100AT-1

STW81100AT-1 - 4.4GHz RF Synthesizer | STMicroelectronics

STMicroelectronics STW81100AT-1 is an integer-N, multi-band RF frequency synthesizer with two integrated differential VCOs, a maximum indicated frequency of 4.4 GHz, and one channel in a 28-pin VFQFN exposed-pad package. The device is intended for RF clock generation and frequency synthesis where multiple internal oscillator ranges improve coverage of wireless communication bands. According to the manufacturer datasheet, direct output includes a 3900 MHz to 4400 MHz range and an internal divider extends coverage to 2200 MHz. A frequency synthesizer is a clock-and-timing IC that uses a phase-locked loop to generate a stable output frequency from a reference source. A PLL compares a divided feedback signal with the reference, while an integrated voltage-controlled oscillator supplies the output. This STW81100AT-1 device combines an integer-N PLL architecture, dual differential integrated VCOs, and automatic center-frequency calibration in one RF-oriented package. The principal feature is multi-band operation from integrated VCO cores. The manufacturer datasheet identifies direct output at 3900 MHz to 4400 MHz and an internal divider by two with output at 2200 MHz. Automatic center-frequency calibration supports startup across different operating states, while the integer-N architecture simplifies frequency planning. A maximum frequency of 4.4 GHz makes the part applicable to microwave and wireless RF signal chains operating below that limit. The 28-VFQFN exposed-pad package is designed for compact RF layouts and provides a central thermal and ground connection. Its RF performance depends on clean supplies, controlled reference routing, short interconnects, and appropriate impedance-controlled layouts. The datasheet indicates that the exposed pad must be connected to ground, while the remaining manufacturing, loop-filter, and RF-layout details should follow the exact pin arrangement and reference circuit in the manufacturer documentation. Typical uses include RF transceiver clock generation, wireless base-station and infrastructure equipment, microwave communication links, test-and-measurement instruments, and frequency-generation modules. It is most appropriate when an integrated synthesizer reduces board area compared with a discrete oscillator and divider arrangement. It should not be selected solely by its 4.4 GHz headline value; reference frequency, tuning range, channel spacing, output power, phase noise, temperature range, and system loop-filter requirements must also be checked. Designers should verify every pin against the 28-pin VFQFN layout before layout release and use the manufacturer's reference circuit as the starting point. RF and supply connections need short return paths, carefully controlled impedance, and isolation from noisy switching stages. Loop-filter component values determine lock behavior and phase noise, so they should not be copied between different reference or output-frequency plans without recalculation. This page consolidates distributor availability, package information, verified frequency and architecture details, engineering application guidance, and procurement-oriented comparisons. It distinguishes documented facts from unavailable information rather than estimating supply voltage, output power, phase noise, temperature limits, pricing, or a complete pin assignment that was not present in the supplied web results.

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STW81100ATR-1 4.4 GHz Multi-Band RF Synthesizer | STMicroelectronics
STW81100ATR-1

STW81100ATR-1 4.4 GHz Multi-Band RF Synthesizer | STMicroelectronics

STMicroelectronics STW81100ATR-1 is a multi-band RF frequency synthesizer with integrated voltage-controlled oscillators, a maximum listed frequency of 4.4 GHz, one RF output, and a 28-pin VFQFN exposed-pad package. It uses an integer-N architecture and incorporates two differential integrated VCOs with automatic center-frequency calibration. The documented direct-output ranges include 3.9 GHz and 4.4 GHz, while the available source material also identifies internal-divider operation around 2.2 GHz. A frequency synthesizer is a clock-and-timing integrated circuit that generates a stable output frequency from a reference source. In the hierarchy, the STW81100ATR-1 is an RF frequency synthesizer, a phase-locked-loop device, and a multi-band clock generator. Its integrated VCOs place the oscillator core inside the package, reducing the number of external microwave oscillator components required in an RF signal chain while supporting closed-loop frequency regulation. The primary feature set includes an integer-N frequency-synthesizer architecture, dual differential integrated VCOs, automatic center-frequency calibration, direct RF output, and internal division. Direct outputs are explicitly listed at 3900 MHz and 4400 MHz. The device is identified as a one-output RF frequency synthesizer in a 28-terminal QCCN surface-mount package and is intended for industrial-grade RF equipment. Automatic center-frequency calibration is particularly important for an integrated VCO because it helps the synthesizer establish an operating condition suitable for stable closed-loop operation. The integer-N architecture determines frequency through integer division and phase comparison, while the integrated VCO supplies the high-frequency output. Detailed phase-noise, reference-input, tuning-voltage, lock-time, temperature-range, and power-supply values are not included in the supplied source snippets and therefore require confirmation from the manufacturer datasheet. Typical uses include multi-band RF transceiver modules, microwave communication equipment, test and measurement instruments, and RF subsystems requiring synthesized local-oscillator signals in the 3.9 GHz or 4.4 GHz bands. The industrial temperature grade can suit equipment operating outside consumer-only environments, although the precise rated temperature interval must be obtained from the datasheet. When designing around this IC, verify the complete reference, charge-pump, loop-filter, supply, and RF output network against the manufacturer application guidance. Preserve the exposed-pad thermal and grounding requirements of the 28-pin VFQFN package, and validate lock behavior, spur performance, and phase noise in the intended channel plan rather than relying only on the maximum listed output frequency. This page consolidates distributor availability, verified catalog attributes, related family information, and practical RF design considerations. It also distinguishes documented facts from parameters not present in the supplied data, providing a transparent basis for footprint review and manufacturer-datasheet confirmation before a drop-in design decision.

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STW81101AT - 4.4GHz RF Frequency Synthesizer | STMicroelectronics
STW81101AT

STW81101AT - 4.4GHz RF Frequency Synthesizer | STMicroelectronics

STMicroelectronics STW81101AT is an integer-N RF frequency synthesizer with dual differential integrated voltage-controlled oscillators, one synthesizer output, and a maximum synthesis frequency of 4.4 GHz. The device accepts a 10 MHz to 200 MHz reference input and is supplied in a 28-pin VFQFPN package with an exposed pad. A frequency synthesizer is a clock-and-timing IC that combines a phase-locked loop, voltage-controlled oscillator, and frequency dividers to generate stable, programmable output frequencies. The STW81101AT belongs to the PLL family within the broader clock-generation and timing-synchronization hierarchy, making it suitable for systems requiring controlled RF or digital clock generation rather than a fixed-frequency oscillator. Key features include integer-N frequency synthesis, dual differential integrated VCOs, and automatic VCO center-frequency calibration. The single output supports synthesis up to 4.4 GHz, while the reference input range of 10 MHz to 200 MHz provides flexibility in system clock distribution. Its operating-temperature range is -40 °C to +85 °C, supporting industrial-grade applications where temperature stability and controlled RF frequency generation are important. The dual differential VCO arrangement provides complementary tuning paths within one frequency-synthesizer IC. Automatic center-frequency calibration helps the synthesizer identify and lock the appropriate VCO operating range, reducing the manual calibration burden associated with discrete voltage-controlled oscillators. The integer-N architecture is intended for applications that can derive the required output through integer multiplication and division of the external reference frequency. Typical uses include RF transceiver clock generation, processor and peripheral clocking, multi-clock systems, timing synchronization, and communication equipment. The 4.4 GHz maximum frequency is particularly relevant to RF signal-chain designs, while the integrated VCOs reduce the component count compared with discrete oscillator-and-divider solutions. Designers should verify the output frequency plan, reference ratio, loop-filter implementation, supply decoupling, and exposed-pad thermal layout against the manufacturer datasheet before layout release. Differential RF connections should be routed with controlled impedance, and the exposed pad should be connected to the appropriate ground plane to support heat dissipation. This page combines verified distributor specifications, a confirmed same-family drop-in ordering alternative, and practical selection guidance. It distinguishes documented electrical facts from parameters that remain unavailable in the supplied source data, helping engineers evaluate the STW81101AT without relying on unsupported assumptions.

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STW81101ATR - Multi-Band RF Frequency Synthesizer | STMicroelectronics
STW81101ATR

STW81101ATR - Multi-Band RF Frequency Synthesizer | STMicroelectronics

The STMicroelectronics STW81101ATR is a multi-band RF frequency synthesizer with integrated VCOs, integer-N frequency synthesis, and dual differential VCO outputs in a 28-pin VFQFPN package. The device accepts a 10 MHz to 200 MHz input reference and operates from a 3 V to 3.6 V supply. Its 0.5 mm terminal pitch and approximately 1 mm package height support compact RF and wireless-infrastructure equipment. A frequency synthesizer is a clock-and-timing IC that generates a stable, programmable output frequency by locking a voltage-controlled oscillator to a reference signal. The STW81101ATR belongs to the PLL, clock-generator, and RF-synthesizer hierarchy. Integrating the VCOs with the synthesizer reduces board area compared with a discrete oscillator and separate phase-locked-loop arrangement while retaining programmable RF output generation. The verified product information identifies integer-N operation and two differential integrated VCOs with automatic center-frequency calibration. Direct and internally divided output arrangements are indicated in the available documentation, although the complete frequency ranges are not exposed in the supplied excerpts. The 10 MHz to 200 MHz input range provides a reference interface suitable for RF systems that derive a stable carrier from an external reference or frequency multiplier. The STW81101ATR is specified for a 3 V to 3.6 V supply and an operating temperature range of -40°C to +85°C. These values make it appropriate for compact industrial and commercial RF equipment where a low-voltage control domain, moderate temperature range, and surface-mount construction are required. Its integrated synthesizer architecture is intended to simplify RF signal generation compared with a discrete VCO, divider, charge-pump, and loop-filter implementation. Typical uses include wireless infrastructure, RF test equipment, frequency-generation modules, and communication receivers that require a phase-locked RF carrier. In these systems, the device can generate a calibrated carrier that is subsequently mixed, modulated, or divided. Integration is especially useful where PCB area is constrained and repeatable center-frequency calibration is more valuable than the flexibility of a fully discrete oscillator network. Designers should provide a clean reference signal and follow the manufacturer layout guidance for the differential VCO and synthesizer interfaces. Decoupling and high-frequency routing are critical because supply noise or trace coupling can degrade phase-noise and spur performance. The exact recommended capacitor values, loop-filter constants, output-frequency ranges, and RF output power must be taken from the complete manufacturer datasheet. This page consolidates the verified package, interface, supply, temperature, sourcing, and cross-reference information into an engineering-focused selection guide. It also distinguishes a documented same-package option from unsupported cross-package suggestions, helping designers avoid treating functionally related RF ICs as true drop-in replacements.

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STW81102AT - Multi-Band RF Synthesizer | STMicroelectronics
STW81102AT

STW81102AT - Multi-Band RF Synthesizer | STMicroelectronics

STMicroelectronics STW81102AT is a multi-band RF frequency synthesizer with integrated VCOs, an integer-N architecture, and a 28-pin VFQFPN exposed-pad package. The verified product information identifies a 10 MHz to 200 MHz input range and a maximum direct output frequency of 1162.5 MHz. It is intended for RF systems that require controlled frequency generation across multiple bands from a low-voltage supply. A frequency synthesizer belongs to the clock and timing IC hierarchy, where it combines a phase-locked loop, voltage-controlled oscillator, frequency divider, and output driver. In the STW81102AT, dual differential integrated VCOs and automatic center-frequency calibration provide the tuning resources needed for multi-band synthesis. The integer-N architecture means the synthesizer establishes its output relationship to a reference frequency through integer feedback division rather than fractional-N interpolation. The principal verified features are the two integrated differential VCOs, automatic center-frequency calibration, direct and divided outputs, and coverage extending to 1162.5 MHz. The 5 mm by 5 mm VFQFPN package supports compact RF designs, while its exposed pad provides a thermal and electrical connection to the PCB. The listed supply range is 3 V to 3.6 V, which makes external supply regulation and careful high-frequency layout essential. STW81102AT is categorized for industrial use and operates from -40 °C to 85 °C. Its BICMOS implementation combines bipolar and CMOS circuit techniques, which is significant in an RF synthesizer because the device must generate controllable high-frequency signals while operating from a low-voltage digital-oriented supply. The maximum reflow temperature stated in the verified product data is 260 °C. Typical uses include multi-band RF front ends, wireless communication equipment, instrumentation, and frequency-generation subsystems. In these systems, the synthesizer can provide a phase-related output to mixer, modulator, or measurement circuits. The design must account for VCO routing, controlled reference distribution, impedance-matched interconnects, and adequate exposed-pad thermal dissipation. The most important layout consideration is to preserve a short, symmetric RF path between the device, matching network, and antenna-side circuitry. Reference and control signals should be kept away from sensitive RF nodes, and the exposed pad should be connected to the ground plane using multiple low-inductance vias. Exact pin names, PLL settings, output-drive details, and recommended external components require confirmation in the manufacturer datasheet. This page consolidates the verified STW81102AT specifications, sourcing links, application guidance, and replacement research into an engineering-oriented overview. It also distinguishes verified drop-in replacements from merely similar frequency synthesizers, helping designers avoid assuming that a different PLL with similar frequency capability is PCB-compatible.

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STW81102ATR - 4.65 GHz Multi-Band RF Synthesizer | STMicroelectronics
STW81102ATR

STW81102ATR - 4.65 GHz Multi-Band RF Synthesizer | STMicroelectronics

STMicroelectronics STW81102ATR is an integer-N multi-band RF frequency synthesizer with dual differential integrated voltage-controlled oscillators, a maximum listed frequency of 4.65 GHz, and a 28-pin VFQFPN package. The R suffix identifies the tape-and-reel ordering option, while the device belongs to STMicroelectronics' Clock & Timing family of clock generators, phase-locked loops, and frequency synthesizers. An RF frequency synthesizer is a clock-and-timing semiconductor that locks a voltage-controlled oscillator to a stable reference frequency. Its phase-locked loop compares the divided output with the reference signal, then adjusts the oscillator control voltage until phase and frequency align. This architecture allows an RF system to generate a stable programmable output from a shared reference instead of relying on multiple independent oscillators. The STW81102ATR uses an integer-N frequency-synthesis architecture and incorporates two differential VCOs with automatic center-frequency calibration. According to the supplied STMicroelectronics datasheet indexing, each VCO provides a direct RF output path, while an internal divider supports an additional lower-frequency division function. Automatic center-frequency calibration helps compensate for process, supply, and temperature variation that would otherwise move the oscillator operating point. The verified distributor and datasheet listings identify the device as operating up to 4.65 GHz with one listed output and approximately 12 mA device current. These figures make it relevant to RF and wireless-infrastructure designs, although the supplied sources do not provide the complete input-frequency ranges, output-power levels, phase-noise curves, reference sensitivity, lock-time limits, supply-voltage range, temperature range, or recommended decoupling network. Typical use cases include multi-band wireless infrastructure, local-oscillator generation, RF transceiver frequency planning, and other systems requiring programmable RF output with integrated VCOs. The two calibrated differential VCOs are especially useful when a design requires more than one related RF frequency source or a direct output combined with a divided output. Engineers should still verify phase-noise and spur performance against the exact channel and band requirements. The main design consideration is that this is a high-frequency analog/RF subsystem rather than a general-purpose digital clock generator. PCB traces, supply filtering, reference routing, ground-plane continuity, and exposed-pad thermal management can affect VCO behavior. Decoupling and loop-filter values must be selected from the complete manufacturer datasheet and reference schematic rather than inferred from the distributor summary. This page consolidates the verified catalog data for the STW81102ATR and adds application context, engineering caveats, and a drop-in comparison with the identified STW81102AT ordering variant. The comparison distinguishes verified facts from parameters that require confirmation from the full manufacturer datasheet before layout or qualification.

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