Logik-ICs
Produkte (260)
74LVC2G02DC-Q100 - Dual 2-Input NOR Gate, AEC-Q100 | Nexperia
The Nexperia 74LVC2G02DC-Q100 is a dual 2-input NOR gate fabricated in CMOS logic and qualified to the AEC-Q100 automotive reliability standard, housed in an 8-pin VSSOP (SOT765, DC) package measuring approximately 2.30 mm x 2.30 mm. Each gate independently performs the Boolean NOR function Y = NOT(A OR B), and both gates share a common supply pin. The device operates across a 1.65 V to 5.5 V VCC range, with inputs tolerant of voltages up to 5.5 V regardless of VCC level, enabling direct interfacing between 3.3 V and 5 V nodes in mixed-voltage designs. A NOR gate is a fundamental CMOS logic building block that produces a HIGH output only when both of its inputs are LOW; when either input goes HIGH, the output is forced LOW. As part of the broader logic IC family (logic gate -> combinational logic -> digital IC -> semiconductor), the NOR function is functionally complete on its own, meaning any Boolean expression can be constructed from NOR gates alone - a property leveraged in classic RTL designs and modern low-density glue-logic applications. Key parametric features include a typical propagation delay of approximately 2.4 ns at 5 V VCC (per Nexperia 74LVC2G02 family datasheet), Schmitt-trigger inputs that tolerate slow or noisy edges, IOFF circuitry that disables outputs during partial-power-down to prevent backflow current, and automotive-grade reliability from -40 C to +125 C. The wide supply range supports both 1.8 V, 2.5 V, 3.3 V, and 5 V rails without level shifters. Architecturally, the device uses Nexperia's standard LVC (Low-Voltage CMOS) topology with parallel P/N-MOS pull-up/pull-down networks sized for balanced rise and fall times. The Schmitt-trigger hysteresis at each input raises the noise margin above that of conventional CMOS gates, while IOFF diodes protect downstream ICs when VCC collapses. Typical applications include automotive body and chassis ECUs, infotainment and ADAS sensor signal conditioning, 3.3 V-to-5 V level translation, control logic for motor drivers, and general-purpose glue logic in industrial PLCs. The Q100 suffix indicates AEC-Q100 qualification for automotive use cases. When laying out the part, place the VCC decoupling capacitor within 2 mm of the supply pin and avoid routing noisy switching traces near the inputs to preserve the Schmitt-trigger hysteresis. For battery-powered designs, account for the quiescent supply current draw even when logic states are static.
74LVC2G125DC - Dual 3-State Buffer 1.65V-5.5V | Nexperia
The Nexperia 74LVC2G125DC is a dual non-inverting buffer/line driver with 3-state outputs, housed in an 8-pin VSSOP (SOT765) package. It operates over a wide supply voltage range of 1.65 V to 5.5 V and accepts input signals up to 5.5 V regardless of VCC, enabling seamless interfacing between 3.3 V and 5 V logic families without level shifters. A buffer IC (also called a line driver) is a digital logic component whose primary function is to isolate a signal source from its load while reproducing the input logic level at the output with no inversion. Buffers with 3-state outputs (high, low, high-impedance) allow multiple devices to share a common bus by selectively enabling or disabling the output stage. The 74LVC family belongs to the Low-Voltage CMOS logic family, characterized by low static power consumption, high noise margin, and 5 V input tolerance even when powered at lower voltages - making it ideal for mixed-voltage system designs. Key features include ±24 mA output drive capability at VCC = 3.0 V, typical propagation delay of 2.0 ns at VCC = 3.3 V, and integrated ESD protection exceeding 2000 V HBM (JESD22-A114) and 200 V MM (JESD22-A115). Each buffer has an independent active-low output enable pin (1OE, 2OE), allowing per-channel bus control. The CMOS low-power design minimizes quiescent current draw, which is critical for battery-powered and always-on applications. The 74LVC2G125DC utilizes Nexperia's advanced CMOS process with Schmitt-trigger inputs for improved noise immunity and slow-input transition tolerance. Output edges are well-controlled, and the symmetric output drive ensures balanced rise/fall times across operating conditions. Independent enable inputs support partial power gating, enabling selective deactivation of unused signal paths. Typical applications include bus isolation in mixed-voltage systems, signal buffering for memory and peripheral interfaces, level translation between 5 V and 3.3 V logic domains, fan-out expansion for clock distribution, and I/O port expansion in microcontrollers. The wide operating range makes it equally suitable for portable consumer devices and industrial control systems. When designing with this part, ensure that the 3-state enable pins are properly managed to avoid bus contention. Always deassert nOE before changing direction in bidirectional applications to prevent momentary short circuits. The VSSOP-8 package requires careful PCB layout for clean signal integrity at high data rates.
74LVC4245ABQ+118 - Octal Dual-Supply Translating Transceiver | Nexperia
The Nexperia 74LVC4245ABQ+118 is an octal dual-supply translating transceiver featuring non-inverting 3-state bus-compatible outputs in both send and receive directions, housed in a 24-pin DHVQFN (5.5x3.5) package with an exposed thermal pad. The device is designed to interface between a 3 V and 5 V bus in a mixed-voltage supply environment, providing bidirectional voltage translation across eight channels with a single direction-control input (DIR) and an output-enable input (OE). A HIGH on OE forces all outputs to a high-impedance state, allowing bus isolation when required. A voltage level translator is an interface IC that allows logic signals crossing different supply domains to communicate without damage or signal integrity loss. Within the broader hierarchy, the 74LVC4245A sits inside the bus transceiver family, which is itself part of the logic IC category, under the umbrella of interface ICs and integrated circuits. The "dual supply" qualifier means the IC carries two independent VCC rails: a 5 V rail (VCC(5V)) on the B-side and a 3.3 V rail (VCC(3V)) on the A-side. This dual-rail topology is the cornerstone feature that enables transparent translation between legacy 5 V peripherals and modern 3.3 V processors, FPGAs, and ASICs. Key features include eight bidirectional channels, ±24 mA output drive on the B-side, low-power CMOS construction, and an operating temperature range from -40 °C to +125 °C. The device accepts input voltages up to 5.5 V on the 5 V side while being powered by a 3.3 V rail, and it supports 3-state outputs that isolate either bus when disabled. The exposed-pad DHVQFN-24 package provides low thermal resistance, supporting sustained heavy drive loads without derating. Technically, the 74LVC4245A uses a wide-bandwidth pass-gate architecture that avoids the direction-switching dead time typical of discrete MOSFET translation circuits. The DIR pin sets the data flow from A to B (HIGH) or B to A (LOW), and the OE pin enables or three-states the outputs. Because the device is non-inverting, the A-side logic level is mirrored directly on the B-side and vice versa, simplifying firmware design. Typical applications include 3.3 V to 5 V bidirectional bus translation in mixed-voltage microcontroller systems, expansion bus isolation between processor and peripheral cards, and legacy interface bridging in industrial control, point-of-sale, and embedded computing platforms. A key design consideration when using this part is that the DIR pin must be driven by the controller that owns the bus, and the OE pin must be toggled to prevent bus contention during direction changes. Decoupling both VCC rails with 100 nF ceramic capacitors placed as close as possible to the IC pins is critical for clean translation at high edge rates. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not aggregated in the manufacturer datasheet.
74SSTUB32868 - 28-Bit to 56-Bit Registered Buffer | TI
The 74SSTUB32868 is a 28-bit to 56-bit registered buffer with address-parity test, designed by Texas Instruments for DDR2 memory modules. It operates at a VCC of 1.7V to 1.9V, making it suitable for low-voltage memory interfaces. The device is available in a 176-ball NFBGA (6x15 mm) package, offering a compact solution for high-density memory modules. A registered buffer is a type of logic device that latches address and control signals to reduce the electrical loading on the memory controller, enabling higher-speed and higher-capacity memory systems. In the hierarchy of memory interface components, the registered buffer sits between the memory controller and the DRAM devices, providing signal buffering and timing alignment. This function is critical in DDR2 and DDR3 modules where signal integrity and timing margins are paramount. Key features include a 1:2 configurable registered buffer topology, which allows one input to drive two outputs, effectively doubling the fan-out for address and control signals. The device also includes address-parity test functionality, which detects parity errors on the address bus, enhancing system reliability. The 176-ball NFBGA package provides excellent thermal and electrical performance, with a compact footprint suitable for space-constrained memory module designs. From a technical perspective, the 74SSTUB32868 uses SSTL_18 I/O standards, compatible with 1.8V memory interfaces. It supports differential clock inputs (CK and CK#) for precise timing, and includes a reset function for initialization. The device is designed to meet JEDEC standards for DDR2 registered DIMMs, ensuring interoperability with standard memory modules. Its low-voltage operation reduces power consumption, making it ideal for power-sensitive applications. Typical applications include DDR2 registered DIMMs, servers, workstations, and networking equipment where high memory capacity and reliability are required. The device is also used in embedded systems that demand robust memory interfaces. Its address-parity test feature is particularly valuable in mission-critical systems where data integrity is paramount. When designing with this device, ensure proper decoupling of the VCC and VDDQ supplies, and follow the layout guidelines in the datasheet to minimize signal skew. The differential clock inputs should be routed with controlled impedance to maintain timing accuracy.
74V2T04STR - Triple Inverter CMOS, SOT-23-8 | STMicroelectronics
The STMicroelectronics 74V2T04STR is a high-speed CMOS triple inverter fabricated in sub-micron silicon gate C2MOS technology with double-layer metal wiring, packaged in an 8-pin SOT-23 (Tape & Reel, STR suffix). It provides three independent single-stage inverting buffers in a single small-outline package, making it a logic-level building block for digital signal inversion in space-constrained designs. Key specifications from the manufacturer datasheet include a typical propagation delay tPD of 4.7 ns at VCC = 5 V, a low quiescent supply current, and balanced output drive capability of |IOH| = IOL = 8 mA minimum at VCC = 4.5 V. A CMOS inverter is the most fundamental building block of digital logic. It accepts a single binary input and produces the complementary binary output: a logic HIGH on the input produces a logic LOW on the output, and vice versa. The 74V2T04 integrates three such inverters into one package, replacing three discrete transistor pairs or three single-inverter packages, thereby reducing board area, BOM count, and propagation skew between channels. As a CMOS device, it sits within the broader hierarchy of logic gates -> combinational logic ICs -> standard logic family -> semiconductor. Key differentiating features include TTL-compatible input thresholds of VIH = 2 V (min) and VIL = 0.8 V (max), which allow direct interfacing with 5 V TTL logic without level translation; power-down protection on inputs that prevents back-feeding current when the device is unpowered; symmetrical output impedance for matched rise and fall times; and balanced propagation delay for predictable timing margins in synchronous paths. The C2MOS silicon-gate process provides inherent low static power dissipation, with quiescent ICC remaining low across the full VCC operating range. The architecture is a classic CMOS inverter pair (p-channel pull-up, n-channel pull-down) replicated three times. Each inverter output stage is sized for the 8 mA balanced drive specification, which is sufficient for driving moderate capacitive bus loads and short PCB traces. The 4.7 ns typical propagation delay at 5 V enables use in clock squaring, reset distribution, and signal buffering applications up to several tens of megahertz. Because all three channels share the same VCC and GND pins, decoupling must be placed close to those pins to suppress switching noise. Typical applications include logic-level inversion and clock buffering in portable and battery-powered devices, signal conditioning between 5 V TTL and 3.3 V CMOS domains, oscillator and crystal-clock signal inversion, watchdog reset pulse generation, and general-purpose glue logic in microcontroller-based embedded systems. The compact SOT-23-8 footprint makes it particularly well suited to hand-held, wearable, and space-constrained consumer designs. When designing with the 74V2T04STR, place a 100 nF ceramic decoupling capacitor as close as possible to the VCC pin, route input and output traces to minimize coupling, and ensure that the load capacitance does not exceed the device's drive capability to maintain the specified propagation delay. Unused inputs must be tied to VCC or GND; floating inputs on a CMOS device can drift to the linear region and cause quiescent current to rise. This page synthesizes distributor pricing, drop-in alternative listings across ST and competing logic families, and practical PCB-level design notes not found in the manufacturer datasheet.
74VHC165FT - 8-Bit PISO Shift Register, 16-TSSOP | Toshiba
The Toshiba 74VHC165FT is an 8-bit parallel-in/serial-out (PISO) shift register built on an advanced high-speed CMOS C2MOS silicon-gate process, offered in a 16-pin TSSOP (TSSOP16B) surface-mount package. It accepts parallel data on one rising or falling shift/load edge and serially shifts it out through Q7 or the complementary Q7' output, supporting clock frequencies up to the device's VHC-rated switching speed across a 2 V to 5.5 V supply range. The wide VCC range makes the part usable in both 3.3 V and 5 V logic families without level translation. A shift register is a sequential logic block that converts parallel data to a serial stream (PISO) or a serial stream to parallel data (SISO/PIPO). In the broader digital hierarchy it belongs to logic ICs → shift registers → CMOS logic → standard logic ICs. PISO shift registers like the 74VHC165FT are commonly used to expand microcontroller GPIO by reporting eight parallel inputs over a single serial pin, reducing board routing complexity in button/keypad scanning, multi-channel ADC front-ends, and display drivers. Key features include eight parallel inputs (D0-D7) with parallel load control (SH/LD'), a clock inhibit pin, asynchronous complementary serial outputs (Q7, Q7'), and standard CMOS low-power dissipation. The 74VHC165FT typically exhibits low quiescent current and high noise margin, making it suited for mixed-signal boards where analog and digital sections must coexist on the same supply. The TSSOP-16B footprint (also referred to as 16-TSSOP) is JEDEC-compliant and pin-compatible with industry-standard 74xx165 logic from other vendors. The architecture uses a master/slave flip-flop chain with asynchronous parallel-load steering logic. When SH/LD' is held LOW, the eight D inputs are asynchronously loaded into the register, overriding any serial activity; when SH/LD' is HIGH, the device shifts on each rising clock edge. The clock-inhibit (CK INH) and serial-data-in (SER) pins allow daisy-chaining multiple 74VHC165 devices for 16-, 24-, or 32-bit input expansion over a single serial line. Typical applications include industrial PLC digital-input modules, keyboard matrix scanners, multi-channel switch-monitor front-ends, LED driver shift chains (when paired with companion PIPO parts), and automotive body-control modules. The wide operating temperature and CMOS noise immunity make it a strong fit for factory-automation and instrumentation. When designing with this device, observe the SH/LD' pulse width (tW) and clock-to-Q propagation delay (tpd) in your timing budget; the asynchronous parallel load is the fastest way to capture a snapshot of the eight inputs but must be glitch-free. Add a small RC on SH/LD' if mechanical switches are wired directly to D inputs. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes that go beyond the manufacturer datasheet to help engineers select and source the 74VHC165FT quickly.
74VHC373MTCX - Octal D-Type Latch, 3-STATE, TSSOP-20 | onsemi
The onsemi 74VHC373MTCX is an advanced high-speed CMOS octal D-type transparent latch with 3-STATE outputs, fabricated with silicon-gate CMOS technology, housed in a 20-pin TSSOP package (MTC suffix). It achieves high-speed operation similar to equivalent bipolar Schottky TTL while maintaining CMOS-class low power dissipation. The device features eight D-type latches with separate latch-enable (LE) and output-enable (OE) controls, configured as an 8-bit transparent latch with non-inverting outputs and high-impedance output capability. A D-type transparent latch is a sequential logic element that captures data on its D inputs when the latch-enable signal is asserted, and holds that data on the Q outputs when LE is de-asserted. The 3-STATE outputs allow multiple devices to share a common bus, controlled by the OE pin. In the broader system hierarchy, the 74VHC373 belongs to the 74VHC logic family of high-speed CMOS logic, itself part of the larger CMOS logic IC family used for glue logic, bus buffering, and address/data demultiplexing in digital systems. Key specifications include a wide 2.0 V to 5.5 V VCC operating range, typical propagation delay of approximately 5 ns at 5 V, low quiescent current, and high output drive capability. The output structure is non-inverting, making it well suited to bus-driving applications where input and output polarities must match. An internal static-guard design provides ESD protection on every input and output pin. Typical applications include address/data bus demultiplexing in microcontroller and microprocessor systems, bus arbitration and bidirectional buffering, register file building blocks, I/O port expansion, and general-purpose storage elements in digital logic designs. The TSSOP-20 footprint makes it attractive for compact, surface-mount assemblies where board space is constrained. When designing with this part, ensure that the OE pin is correctly driven to avoid bus contention when multiple 74VHC373 devices share a common output bus. Decoupling the VCC pin with a 0.1 µF ceramic capacitor placed within a few millimeters of the package is recommended for reliable high-speed operation. This page synthesizes distributor pricing, verified cross-reference drop-in alternatives, and practical design notes beyond what is presented in the manufacturer datasheet.
74VHC373TTR - Octal D-Type Latch, 3-State, TSSOP-20 | STMicroelectronics
The STMicroelectronics 74VHC373TTR is an advanced high-speed CMOS octal D-type transparent latch with 3-state outputs, housed in a 20-pin TSSOP package delivered on Tape & Reel (suffix "TR"). According to the manufacturer datasheet, it features a typical propagation delay of 5.0 ns at VCC = 5 V, a maximum quiescent supply current (ICC) of 4 µA at TA = 25 °C, balanced propagation delays (tPLH ≈ tPHL), symmetrical output impedance of |IOH| = IOL = 8 mA minimum, and high noise immunity (VNIH = VNIL = 28% VCC minimum). It operates across VCC = 2.0 V to 5.5 V, making it directly compatible with both 3.3 V and 5 V logic rails, and is pin- and function-compatible with the legacy 74 series 373 to ease migration paths. A D-type transparent latch, in this product category, is a bistable memory element that captures data on its D input when the latch-enable (LE) pin is asserted HIGH and holds the last captured value when LE is de-asserted LOW. Octal variants integrate eight such latches into a single 20-pin package with a common LE and a common Output Enable (OE), making them ideal for bus-oriented designs where multiple data lines must be captured simultaneously and then tri-stated for sharing with other devices. Latches belong to the broader logic IC family (74-series), which descends from 74xx TTL and has been re-implemented in CMOS, HC, HCT, VHC, and AHC process generations offering progressively lower power and higher speed. The 74VHC373TTR's silicon-gate CMOS fabrication provides improved latch-up immunity over older HC implementations while preserving pin-out equivalence to the 74HC373, 74HCT373, and original bipolar 74373. Power-down protection on the inputs prevents back-drive current when VCC is removed, an essential feature for hot-swap and mixed-voltage systems. The output stage is optimized for balanced drive (8 mA source/sink), allowing direct interface with low-impedance bus lines without external buffers. Typical applications include microprocessor data-bus demultiplexing, address latching for memory expansion (SRAM, DRAM, EPROM), I/O port expansion via 74-series logic, holding registers in DSP pipelines, and bus-isolation between masters and slaves in shared-bus architectures such as the classic 8086/8088 or modern MCU GPIO expansion. When designing with the 74VHC373TTR, ensure that LE and OE timing satisfy the setup (ts) and hold (th) requirements listed in the datasheet's switching characteristics table to avoid race conditions in transparent-latch mode. Avoid leaving inputs floating; tie unused D inputs to VCC or GND through a resistor to prevent unintended ICC rise from floating CMOS gates. This page consolidates distributor pricing, drop-in alternatives, and practical design guidance not found on the manufacturer's product page.
AD5291BRUZ-20 - 20kΩ 256-Position SPI Digital Potentiometer | ADI
The Analog Devices AD5291BRUZ-20 is a single-channel, 256-position digital potentiometer with 20 kΩ end-to-end resistance, nonvolatile memory (NVM) and an SPI serial interface, housed in a 14-pin TSSOP (RU-14) package. According to the ADI AD5291/AD5292 datasheet, this part combines ±1% R-tolerance accuracy with 20-time-programmable (20-TP) memory, allowing wiper settings to be retained through power cycles without an external EEPROM. Headline parameters include 256 tap positions, 20 kΩ nominal resistance, ±1% resistor tolerance, and an SPI-compatible digital interface operating from a single 2.7 V to 5.5 V analog supply plus a 1.7 V to 5.5 V logic supply. A digital potentiometer (often abbreviated digi-pot or RDAC) is a digitally controlled variable resistor that emulates a mechanical potentiometer through a tapped resistor ladder switched by MOSFET transistors. It belongs to the broader category of digital-to-analog converters (DAC) used for resistance, which in turn sits within data-acquisition and signal-conditioning components. Compared to mechanical trimmers, a digi-pot offers remote adjustment, no mechanical wear, and software-controlled calibration. Key features of the AD5291BRUZ-20 include ±1% end-to-end resistance tolerance, a low 5 ppm/°C nominal temperature coefficient, 256 uniform tap points with 5 V/5.5 V single-supply operation, and a 20-time-programmable nonvolatile memory for storing the wiper position through power-down. The part also integrates a hardware RESET pin and software reset command that reloads the most recently programmed 20-TP memory location, plus a power-on refresh circuit that reinitializes the wiper on supply ramp. The internal architecture is a precision thin-film resistor ladder with CMOS transmission-gate switches, driven by an internal RDAC register. A separate 20-bit (AD5291) or 50-bit (AD5292) EEPROM cell stores the user-programmed wiper position. The SPI interface supports daisy-chaining of multiple devices via a dedicated SDO pin, and the logic supply range of 1.7 V to 5.5 V permits direct connection to 1.8 V, 3.3 V, or 5 V microcontrollers without level shifters. Typical applications include programmable gain amplifiers and transimpedance amplifiers, precision reference voltage trimming in instrumentation, audio volume and tone control, LCD display contrast adjustment, programmable filter cutoff and oscillator tuning, and industrial 4–20 mA loop calibration. The TSSOP-14 footprint is friendly to handheld and portable designs where board area is constrained. When designing with this device, observe the absolute maximum analog supply voltage of 6.5 V and keep the logic supply within 1.7 V to 5.5 V. Bypass VDD and VL with 0.1 µF capacitors placed within 5 mm of the supply pins, and reserve a small footprint for an optional 1 µF bulk cap on VDD if the supply is noisy. This page synthesizes distributor pricing, drop-in alternatives sourced from the AD5291 family and competitor cross-reference, and practical design notes not found in the manufacturer datasheet alone, helping engineers select and qualify the AD5291BRUZ-20 faster.
ADG431BRZ-REEL7 - Quad SPST 24Ohm Analog Switch | Analog Devices
The ADG431BRZ-REEL7 from Analog Devices is a monolithic CMOS analog switch IC containing four independently selectable SPST (single-pole single-throw) switches. Fabricated on the enhanced LC2MOS process, it combines low power dissipation with high switching speed and low on-resistance of 24 ohms maximum. Each switch conducts equally well in both directions when ON and turns on with a logic LOW on its control input. The device is supplied in a 16-pin SOIC package on tape and reel (REEL7) for automated surface-mount assembly. An analog switch IC is a semiconductor device that selectively connects or disconnects an analog signal path under digital control, replacing mechanical relays with faster, smaller, more reliable solid-state switching. Analog switches sit within the broader hierarchy of signal routing components: analog switch, multiplexer/demultiplexer, signal conditioning IC, and mixed-signal semiconductor. The ADG431 belongs to the ADG431/ADG432/ADG433 precision quad SPST family, which differs only in control-input logic polarity. Key features include the 24 ohm maximum on-resistance with low on-resistance flatness, glitch-free switching that suppresses charge-injection transients during state changes, bidirectional signal capability, and an operating temperature range of -40C to +85C for industrial environments. The LC2MOS process merges CMOS logic with linear Bipolar-grade analog capability, delivering fast transition times with microamp-level quiescent power consumption, ideal for battery-operated and high-density designs. Typical applications include audio and video signal routing, data acquisition channel selection, communication-system signal switching, and automated test equipment. Its low on-resistance minimizes insertion loss, while fast switching supports high channel-scan rates in multiplexed ADC front ends. When designing with this part, account for on-resistance-induced attenuation in series with source impedance, and observe supply-voltage limits. Note the active-LOW control logic: if your firmware assumes active-HIGH switching, the ADG432 is the logic-compatible family alternative in the identical SOIC-16 pinout.
ATMXT224S-CCUR - 224-Node Touchscreen Controller | Microchip
The Microchip Technology ATMXT224S-CCUR is a capacitive touch screen controller IC from the maXTouch S-series family, featuring 224 mutual-capacitance sensing nodes and support for 1.5 mm passive stylus operation. It is supplied in a surface-mount package (per manufacturer product page; package variant code CCUR) and is designed for high-performance smartphone and tablet touchscreen applications. A capacitive touch screen controller is an integrated circuit that scans a grid of electrodes embedded in a touch panel, measures mutual capacitance changes caused by finger or stylus contact, and applies proprietary algorithms to convert raw signals into accurate touch coordinates. Within the signal-chain hierarchy, the touch controller sits between the touch sensor (passive ITO electrode matrix) and the host application processor, communicating touch data over an I2C or SPI interface. Key features of the ATMXT224S include 224 sensing nodes supporting touch panels up to roughly 8-9 inches, Microchip's patented capacitive touch technology, and passive stylus support at 1.5 mm tip width. These capabilities enable slim bezels, accurate handwriting input, and multi-touch performance required by premium mobile devices. Technically, the maXTouch S-series integrates a dedicated touch-processing engine with Microchip's noise-suppression algorithms, providing immunity against charger and display noise - a critical requirement as displays and charging circuits inject common-mode interference into touch panels. Typical applications include smartphones, tablet touch panels, portable media players, and industrial human-machine interfaces (HMI) that require multi-touch and stylus input. Important design consideration: Microchip's official product page for ATmXT224S states that the recommended alternative touch controller is the ATMXT336U, and the mXT224S is being superseded; new designs should evaluate the successor family. Firmware/configuration data is programmed into the maXTouch controller at production, so design-in requires Microchip's maXTouch development tools. This page synthesizes verified distributor pricing, lifecycle status, and alternative controller guidance not consolidated in the manufacturer datasheet.
ATMXT336S-MAUR - 336-Node Touchscreen Controller IC | Microchip
The Microchip Technology ATMXT336S-MAUR is a maXTouch 336-node mutual-capacitance touchscreen controller IC designed for high-performance smartphones and mobile devices, delivered in a reel-packaged surface-mount package (MAU suffix). A capacitive touchscreen controller is a mixed-signal IC that drives and senses a grid of mutual-capacitance nodes on a touch panel, converts raw capacitance changes into digitized touch coordinates, and reports gesture data to a host processor. Within the power management and human-interface hierarchy, it sits between the passive touch panel and the application processor, forming part of the sensor and interface IC layer of a mobile system. Key features include 336 mutual-capacitance sensing nodes, support for 2.0 mm passive stylus input, moisture robustness for wet-finger tracking, and superior electrical noise immunity for operation in hostile AC-charger and display-noise environments, according to the Microchip product page. The maXTouch architecture uses patented capacitive touch acquisition technology with on-chip signal processing, enabling high signal-to-noise ratio touch reporting at high report rates. This makes the mXT336S well suited to dense sensor patterns on thin phone form factors where water rejection and stylus resolution are critical differentiators. Typical applications include premium smartphone touchscreens, small-to-medium tablet and phablet panels, and portable consumer devices requiring passive stylus support and wet-hand operation. When designing with the mXT336S, confirm panel node count and pin mapping against the maXTouch family configuration, and note that Microchip officially recommends the ATMXT336U as the alternative touch controller for this part. This page synthesizes verified distributor pricing, the Microchip-recommended alternative, drop-in family options, and practical sourcing guidance not consolidated in the manufacturer datasheet alone.
CD40161B-MIL - CMOS Sync 4-Bit Binary Counter | Texas Instruments
The Texas Instruments CD40161B-MIL is a CMOS synchronous programmable 4-bit binary counter with asynchronous clear, supplied in a 16-lead hermetic dual-in-line ceramic package (F3A suffix) with a 3V to 18V supply range, a 5.5MHz typical maximum clock frequency at 5V, and a full military operating temperature range of -55C to +125C for high-reliability applications. A synchronous programmable counter is a digital sequential logic device that advances through a binary counting sequence on each rising clock edge while allowing any 4-bit value to be parallel-loaded via preset inputs. Within the logic IC hierarchy, counters are fundamental building blocks of the broader family of sequential logic and digital timing devices, sitting alongside shift registers and flip-flops as core building blocks for sequencing and frequency division in digital systems. Key features include fully static operation down to DC, standardized symmetrical output characteristics meeting JEDEC Tentative Standard No. 13B for B-series CMOS devices, and a fanout of 1 LSTTL load for direct interfacing with other logic families. The asynchronous clear resets all outputs to zero immediately regardless of clock state, and the ripple carry output enables straightforward cascading of multiple stages into wider counters. Technically, the CD40161B uses CMOS technology with buffered outputs and input protection diodes to VDD and VSS, providing low static power consumption and high noise immunity typical of the CD4000B series. Typical propagation delay is 160ns at 5V, and the device is functionally equivalent to and pin-compatible with the TTL 74LS161 counter. Typical applications include frequency dividers, programmable binary counting, counter control/timers, event counters, and state machines in industrial control, test equipment, and aerospace electronics where hermetic packaging and the military temperature range are mandatory. A key design consideration: tie the asynchronous clear input to VDD when unused to prevent spurious resets, and provide clean clock edges to avoid double counting. This page synthesizes verified datasheet parameters, drop-in family alternatives, pricing tiers, and practical design notes not consolidated in the manufacturer datasheet.
CD4017BE - CMOS Decade Counter/Divider, 16-PDIP | Texas Instruments
The Texas Instruments CD4017BE is a CMOS decade counter/divider with 10 decoded outputs, packaged in a 16-pin PDIP (through-hole). It operates as a 5-stage Johnson counter with built-in output decoding, advancing one position on the positive edge of the clock input, with active-high decoded outputs Q0-Q9 and a carry-out (CO) signal for cascading. The part is specified over a wide supply range of 3 V to 18 V and supports fully static operation with no minimum clock frequency. A decade counter/divider is a sequential logic circuit that counts clock pulses from 0 to 9 and then repeats, producing one decoded output pulse per count. Each of the 10 decoded outputs goes high in sequence, which makes the CD4017 useful as a one-of-N selector, a sequencer, or a frequency divider. In the broader hierarchy it belongs to the CMOS 4000 family of logic ICs, the standard for low-power, wide-supply-range digital functions. The "BE" suffix on TI parts denotes the plastic DIP package and the standard CMOS process. Key features of the CD4017BE include fully static operation (no minimum clock), typical operation up to 10 MHz at VDD = 10 V, medium-speed performance at 5 V and 10 V parametric ratings, low quiescent current tested at 20 V, and standardized symmetrical output characteristics. The output stage can source or sink several milliamps per pin, sufficient to drive LEDs directly in hobby circuits when current-limited by a series resistor. An active-high clock enable pin and a master reset (active-high) pin provide flexible control over counting and clearing. Architecturally, the CD4017 uses a 5-bit Johnson counter feeding a one-of-10 decoder. The Johnson-counter topology eliminates the race and glitch hazards associated with asynchronous ripple counters, because each stage is clocked synchronously. The carry-out signal goes high during counts 0-4 and low during 5-9, allowing two CD4017s to be cascaded to form a 100-state counter without external gating. Typical applications include LED chasers and running-light displays, frequency division, sequential timing, keypad scanning, and event counters. The wide 3 V to 18 V supply range lets designers power it directly from a 9 V battery, a 12 V rail, or a regulated 5 V logic supply without level shifting. The decoded outputs eliminate the need for an external binary-to-decimal decoder such as the CD4028, saving board space and cost. Design considerations for the CD4017 include input signal rise/fall time (slow edges near the clock threshold can cause double-counting), proper bypassing of VDD with a 100 nF ceramic capacitor close to the supply pin, and limiting LED current to the Absolute Maximum ratings when driving displays. Inputs must be brought below 0.5*VDD for a logic low and above 0.5*VDD for a logic high for reliable operation across the supply range. This page synthesizes distributor pricing from DigiKey, Mouser, and LCSC, plus cross-reference equivalents such as MC14017BCP and HCF4017BE drawn from JEDEC-registered CMOS 4000-series second sources - information not consolidated on the manufacturer datasheet alone.
CD4017BEE4 - CMOS Decade Counter/Divider, 10MHz, 16-PDIP | TI
The Texas Instruments CD4017BEE4 is a CMOS decade counter/divider that sequentially activates one of ten decoded outputs on each rising clock edge, housed in a 16-pin PDIP through-hole package. It operates from a 3 V to 18 V supply, supports fully static operation with a typical clock frequency of 10 MHz at VDD = 10 V, and is 100% tested for quiescent current at 20 V. It carries 5 V, 10 V, and 15 V parametric ratings and meets all requirements of JEDEC Tentative Standard No. 13-A for CMOS logic. A decade counter is a sequential logic device that advances through ten unique states per clock cycle, then automatically resets. The CD4017 belongs to the CD4000 series of CMOS logic ICs, sitting in the broader family of logic ICs, digital ICs, and ultimately semiconductors. This counter is widely used to convert a clock pulse train into a one-of-N sequential output, eliminating the need for a decoder circuit in many designs. Key features include five Johnson-counter stages with decoded 1-of-10 active-high outputs, an active-low carry-out for cascading multiple counters, a low clock-pulse count of ten per cycle, and fully static synchronous operation. Symmetrical output characteristics ensure consistent rise and fall times, and the device includes a clock-inhibit control and a master reset for flexible timing applications. Its wide supply range (3 V to 18 V) and CMOS low power make it a versatile general-purpose sequencing element. Architecturally, the CD4017BEE4 implements five D-type flip-flops arranged as a Johnson counter with built-in decode gating that produces ten mutually-exclusive active-high outputs. Each rising edge of the clock pin increments the internal state and shifts the active-high decode to the next output in sequence. A clock inhibit input disables counting without resetting state, while the master reset asynchronously clears all outputs and returns Q0 high. Typical applications include LED sequencer chasers, frequency division (divide-by-N), keyboard encoders, and decade counting displays. Its 10 MHz typical clock and 18 V rating also suit industrial control timing, hobby electronics, and educational digital logic training. When designing with the CD4017BEE4, place a 0.1 µF decoupling capacitor close to the VDD pin and a 1 µF to 10 µF bulk capacitor on the supply rail. Tie unused active-high outputs either to known states or through resistors, and observe the clock-inhibit setup time before re-enabling counting to avoid spurious counts. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
CD4024BHSR - 7-Bit Binary Ripple Counter 3-18V | Renesas
The Renesas Electronics CD4024BHSR is a 7-bit binary ripple-carry counter IC with a maximum count rate of 12 MHz, operating from a 3 V to 18 V supply over the full military temperature range of -55C to +125C, supplied in unpackaged die form. The device counts on the negative-going clock edge and provides an asynchronous MASTER RESET input. A binary ripple counter is a digital counter in which the output of each flip-flop stage clocks the next stage, rather than all stages clocking from a common source. Ripple counters sit within the broader hierarchy of sequential logic -> counters/dividers -> logic ICs. Because the carry ripples through seven stages, propagation delays accumulate, which limits the maximum count frequency but yields an extremely simple, low-power, low-pin-count frequency divider architecture. Key features of the CD4024BHSR include the 7-bit counting range (divide-by-2 through divide-by-128), unbuffered monolithic CMOS construction, negative-edge clock triggering, and an asynchronous active-high reset. The wide 3 V to 18 V supply range makes it compatible with legacy CMOS and military power rails, and the -55C to +125C rating supports harsh-environment designs such as avionics and defense systems. Technically, the unbuffered CMOS output structure gives the part reduced switching noise and the ability to operate with very low quiescent power, although unbuffered outputs exhibit higher output impedance than buffered 4000-series equivalents. Each of the seven Q outputs divides the input clock by successive powers of two, enabling cascaded frequency division from a single package. Typical applications include frequency division in clock trees, long-duration timers in industrial controllers, event counting in instrumentation, and ripple-divider chains in military and aerospace electronics where the die-format packaging supports custom hybrid or COB (chip-on-board) assembly. When designing with this part, remember that asynchronous ripple counters produce decode glitches on intermediate states; decode only when the count is settled or use a synchronous counter if glitch-free outputs are required. This page adds information gain beyond the datasheet by consolidating distributor stock data, drop-in same-family alternatives, comparison tables, and practical design notes for the CD4024BHSR in one place.
CD4028BF - CMOS BCD-to-Decimal Decoder | Texas Instruments
The Texas Instruments CD4028BF is a CMOS BCD-to-decimal or binary-to-octal decoder/driver housed in a 16-pin ceramic DIP (CDIP, J) package rated for the military -55C to +125C operating range. It accepts a 4-bit BCD input and asserts one of ten active-HIGH decoded outputs, with three additional binary-to-octal outputs for codes 10-15. Each input is buffered and the device operates across 3V to 18V supply with parametric ratings at 5V, 10V, and 15V. A BCD-to-decimal decoder is a combinational logic circuit in the CMOS 4000-series family that converts Binary Coded Decimal input codes (0000-1001) into one-of-ten mutually-exclusive active-high outputs. As a member of the decoder/driver category within the broader integrated circuit hierarchy (decoder/driver -> decoder -> logic IC -> semiconductor), it sits alongside address decoders, display drivers, and code converters, providing 1-of-10 fan-out with on-chip input buffering for direct drive of indicator tubes, Nixie displays, and memory-chip select lines. Key features of the CD4028BF include 4 buffered inputs with standard CMOS B-series noise immunity, 10 decoded outputs that are mutually exclusive (only one HIGH at a time), 3 additional outputs Y2/Y4/Y8 that decode the binary-to-octal function for codes 10-15, and quiescent current of approximately 0.5 uA at 5V VDD. The CDIP-16 ceramic package provides hermetic sealing for military and aerospace programs requiring extended reliability under thermal and mechanical stress. Per the TI CD4028B-MIL product page, the part meets all requirements of JEDEC Tentative Standard No. 13B for B-Series CMOS Devices. The CD4028BF is built on a 4000B-series CMOS process with P-channel and N-channel enhancement MOSFETs implementing the NAND/NOR decode matrix, followed by output buffers sized to source/sink approximately 1 mA at 5V VDD. The buffered inputs prevent input loading on the driving logic, allowing direct connection to standard TTL or CMOS sources even when VDD exceeds Vih(TTL). The decoded outputs are non-latching and follow the input code in real time, which simplifies memory-chip-select decoding where a static address must be continuously asserted. Typical applications include indicator-tube (Nixie) drivers for vintage instrumentation displays, memory-chip select decoding for systems requiring more than four chip enables, address decoding for I/O expansion, decimal readout for digital meters, and code conversion from BCD/binary to one-hot representations. The wide 3V to 18V supply range supports both 5V TTL and 15V CMOS system environments without level shifters. When designing with the CD4028BF, ensure VDD decoupling with a 0.1 uF ceramic capacitor placed close to pin 16 (VDD), tie unused inputs to VDD or GND to prevent shoot-through current, and verify that output sink/source current stays within the 1 mA limit when driving high-current loads such as Nixie cathodes - in those cases add a discrete transistor buffer stage. This page synthesizes distributor pricing, MIL-spec drop-in alternatives, pinout reference data, and PCB design notes not found in the bare datasheet, enabling engineers to source, qualify, and lay out the CD4028BF faster.
CD4050BNSR - Hex Non-Inverting Buffer 3-18V SOP-16 | TI
The Texas Instruments CD4050BNSR is a CMOS hex non-inverting buffer and logic-level converter that operates from 3V to 18V, packaged in a 16-pin Small-Outline (SOP / NS) tape-and-reel format. Each of the six buffers accepts a standard CMOS input and drives a push-pull CMOS output, with input clamp diodes on every input pin to allow safe translation from voltages above VCC (up to 18V) down to the single VCC rail used by the device. A CMOS buffer/converter is a digital logic building block whose primary job is to provide current drive gain and voltage-level translation between two logic domains without inverting the signal. Within the broader hierarchy of ICs, the CD4050B belongs to the CD4000 family of CMOS logic ICs, which sits under the Specialty Logic / Buffers & Line Drivers segment of the Logic IC category. Each buffer in this part functions as a stand-alone driver channel that sources and sinks current into the next stage, isolating the input logic domain from the load. The 'B' suffix denotes the buffered TI/CMOS output stage that improves noise margin over the older unbuffered CD4050A. Key features include 6 independent channels, push-pull CMOS output drive, very low quiescent supply current (typically in the microamp range), input clamp diodes that protect the input from voltages up to 18V regardless of VCC, and a propagation delay of approximately 50 ns at 10V VCC (Standard speed). The 16-pin SOP (NS) package measures 0.209 inch (5.30 mm) body width, making it compatible with industry SOP-16 footprints and conventional lead-free reflow profiles. The CD4050B uses a complementary MOS enhancement-mode P-channel and N-channel transistor output structure in every channel, which provides symmetrical rise/fall drive and low quiescent leakage. The single-supply VCC architecture means only one rail is required, while the input clamp diodes perform the level-shift work by clamping input voltages above VCC down to a diode drop above VCC. The push-pull output stage delivers rail-to-rail output swings while preventing shoot-through, unlike the older CD4049UB which provides inverting buffers with the same drive. Typical applications include CMOS-to-DTL/TTL logic-level translation in mixed-voltage systems, signal buffering between high-impedance sensor outputs and downstream CMOS logic, input protection/level-shifting for buttons and switch contacts, and bus buffering where a non-inverting driver must preserve the original logic state. The wide 3V to 18V supply tolerance makes it compatible with 3.3V, 5V, 9V, 12V, and 15V logic rails. When designing with this part, note that unused inputs must be tied to VCC or GND - they MUST NOT be left floating, because floating CMOS inputs draw quiescent current and can drift into the linear region. The input voltage, thanks to the clamp diode, may safely exceed VCC (up to 18V) for logic-down translation, which is the opposite of the more common step-up translation. The push-pull outputs can drive standard CMOS loads and modest TTL loads through an external pull-up resistor. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone TI datasheet, including an explicit pin-for-pin comparison versus competing CD4050B equivalents from onsemi, Toshiba, and ROHM in the same 16-SOIC footprint.
CD4052BPWR - 4:1 Differential Analog Mux 240 Ohm | Texas Instruments
The Texas Instruments CD4052BPWR is a differential 4-channel analog multiplexer/demultiplexer from the CD405xB CMOS logic family, delivered in a 16-pin TSSOP (PW) package rated from -55C to +125C. It integrates two independent 4:1 switch circuits with binary control inputs A and B and an inhibit (INH) input, routing one of four differential channel pairs to a common connection over a wide 3V to 20V supply range. An analog multiplexer is a digitally controlled analog switch that connects one of several input signals to a single output. Within the signal-chain hierarchy, the CD4052B sits in the analog switches and multiplexers category of power and signal management ICs, serving as a fundamental building block between sensors or signal sources and ADCs, filters, or instrumentation amplifiers. Key features include a typical ON resistance of 240 ohms, very low OFF leakage current of approximately 100 uA class static consumption, and built-in logic-level conversion via the VEE pin, which allows CMOS or TTL-level logic inputs to control analog signals spanning the full supply range. Bidirectional signal flow supports both multiplexing and demultiplexing, and the INH input provides a high-impedance state across all channels. The device is fabricated in CMOS technology, delivering low static power consumption and high noise immunity. Analog signal swing extends to the full supply rails, making the part suitable for rail-to-rail signal routing. The TSSOP-16 body is 1.20 mm high with a 0.65 mm lead pitch for high-density surface-mount layouts. The part is RoHS compliant and lead-free. Typical applications include audio signal routing, data acquisition input selection, ADC front-end channel expansion, and test and measurement equipment; it is also used in automotive LIN circuits where its wide supply range is beneficial. Design tip: never exceed the 20V absolute maximum supply, place 100 nF decoupling capacitors close to VDD/VSS, and use the INH pin to implement channel isolation or power-down states.
CD4052QPWRQ1 - AEC-Q100 Dual 4:1 Analog Mux | TI
The Texas Instruments CD4052QPWRQ1 (CD4052BQPWRQ1 family) is an AEC-Q100 qualified CMOS differential 4-channel analog multiplexer/demultiplexer with logic-level conversion, supplied in a 16-pin TSSOP (PW) package. It functions as a digitally controlled analog switch that routes one of four differential signal pairs to a common output pair under control of a 2-bit address (A/B) and an active-low inhibit (INH) input. An analog multiplexer/demultiplexer is a bidirectional signal-routing device within the broader hierarchy of CMOS logic and analog switch ICs. Unlike digital-only multiplexers, the CD4052 family passes analog signals across the full supply range, with on-chip level shifting that allows logic inputs referenced to a low-voltage supply (VDD-VEE down to 3V) to control switches spanning up to 20V, making it usable in mixed-rail systems. Key features include a wide 3V to 20V supply range, logic-level conversion via VEE, break-before-make switching, low quiescent current typical of 4000B-series CMOS, and automotive qualification per AEC-Q100. Channel on-resistance is lowest at higher VDD; TI datasheet curves show typ values on the order of 100-300 ohm depending on supply and signal level [DATA_NEEDED: exact Ron typ]. The 4000B CMOS process provides high noise immunity, rail-to-rail analog signal handling, and very low static power consumption, which suits battery-powered and high-voltage industrial signal chains. Typical applications include automotive sensor signal routing, differential data acquisition front ends, audio signal selection, and industrial control multiplexing where a low-cost, high-voltage-tolerant switch is required. Design tip: keep the INH pin tied to a defined logic level (not floating) to avoid channel glitching, and observe the VDD-VEE total limit of 20V. Prices cited as of 2026-08-29.
CD4093BM96G4 - CMOS Quad 2-Input NAND Schmitt Trigger | TI
The CD4093BM96G4 is a CMOS quad 2-input NAND Schmitt trigger integrated circuit from Texas Instruments, packaged in a 14-pin SOIC (SOIC-14). It operates over a supply voltage range of 3V to 18V, making it suitable for a wide variety of battery-powered and industrial applications. The device features four independent NAND gates, each with Schmitt trigger action on both inputs, providing hysteresis for noise immunity and slow input signal conditioning. A Schmitt trigger is a comparator circuit with hysteresis that converts noisy or slowly changing input signals into clean digital outputs. In the CD4093B, each gate switches at different thresholds for positive-going (VP) and negative-going (VN) signals, with the difference (hysteresis) ensuring stable switching and preventing multiple transitions. This makes the CD4093B ideal for interfacing with sensors, switches, and other real-world signals that may have slow edges or noise. Key features of the CD4093BM96G4 include a wide supply voltage range of 3V to 18V, low quiescent current of typically 4µA, and output drive capability of 3.4mA sink and source. The Schmitt trigger inputs provide hysteresis of typically 0.9V at 5V supply, improving noise margin. The device is fully static, allowing operation at any frequency from DC to several MHz, and is pin-compatible with the standard CD4093B family. The CD4093B is fabricated using silicon-gate CMOS technology, which provides low power dissipation and high noise immunity. The Schmitt trigger action is implemented using a feedback network that creates the hysteresis window. This architecture allows the device to operate reliably in noisy environments and to condition signals with slow rise/fall times, such as those from RC oscillators or mechanical switches. Typical applications include waveform shaping, pulse generation, debouncing of mechanical switches, and as an oscillator in RC timing circuits. The CD4093BM96G4 is also used in sensor signal conditioning, where its hysteresis prevents false triggering. Its wide operating voltage range makes it suitable for both 5V and 3.3V logic systems, as well as higher-voltage industrial controls. When designing with the CD4093BM96G4, ensure that input voltages do not exceed the supply rails, and consider adding a series resistor to limit input current if the input may exceed the supply. The Schmitt trigger inputs eliminate the need for external hysteresis components, simplifying circuit design. For high-speed applications, note that propagation delay is typically 80ns at 5V, which is adequate for most control and timing functions.
CD4511B - BCD-to-7-Segment Latch Decoder Driver | Texas Instruments
The CD4511B is a CMOS BCD-to-7-segment latch decoder driver from Texas Instruments, designed to convert binary-coded decimal (BCD) inputs into signals that drive common-cathode 7-segment LED displays. It combines the low quiescent power dissipation and high noise immunity of RCA CMOS technology with n-p-n bipolar output transistors capable of sourcing up to 25 mA per segment. This allows direct driving of LEDs without additional current buffers. The device is available in multiple 16-lead packages including PDIP (E suffix), SOIC (NSR suffix), and TSSOP (PW/PWR suffixes), making it suitable for through-hole and surface-mount designs. A BCD-to-7-segment decoder is a digital combinational circuit that translates a 4-bit BCD input (0000 to 1001) into the appropriate 7-segment display code (a-g). It is a fundamental building block in digital display systems, converting binary data into human-readable numeric output. The CD4511B belongs to the CD4000 series of CMOS logic ICs, which are known for wide supply voltage operation (3V to 18V), low power consumption, and high noise immunity. This decoder sits between a counter or microcontroller and the display, simplifying the interface and reducing the number of I/O pins required. Key features of the CD4511B include lamp test (LT), blanking (BL), and latch enable (LE) inputs. The lamp test input forces all segments on to verify display functionality. The blanking input can shut off the display or be used for intensity modulation via pulse-width modulation. The latch enable input stores the BCD code, allowing multiplexed displays where several digits share the same decoder. The device also features an internal pull-down on the BCD inputs, ensuring a defined logic level when inputs are floating. Technically, the CD4511B is fabricated on a single monolithic structure combining CMOS logic with bipolar output transistors, a process known as BiCMOS. This architecture provides the low power consumption of CMOS with the high current drive capability of bipolar transistors. The outputs are active-high and can source 25 mA, sufficient for driving standard LEDs with appropriate current-limiting resistors. The device operates over a supply voltage range of 3V to 18V, with a typical quiescent current of only 80 µA at 5V, making it suitable for battery-powered applications. Typical applications include digital clocks, frequency counters, digital voltmeters, and any system requiring numeric display. The CD4511B is often used with 7-segment LED displays in instrumentation, consumer electronics, and industrial control panels. Its ability to latch data makes it ideal for multiplexed display systems, reducing the number of decoder ICs needed. When designing with the CD4511B, ensure that the supply voltage is within the specified range and that current-limiting resistors are placed in series with each segment to prevent excessive current. The blanking input can be used for brightness control by applying a PWM signal. For multiplexed displays, the latch enable input should be pulsed after the BCD data is stable to avoid display flicker.
CD74AC151M96 - 8-Input Multiplexer, 16-SOIC | Texas Instruments
The Texas Instruments CD74AC151M96 is a high-speed 8-input digital multiplexer fabricated in the AC (Advanced CMOS) logic family, delivered in a 16-pin SOIC (D) surface-mount package with Tape and Reel packing (-96 suffix). It selects one of eight data inputs (D0-D7) under control of three select lines (A, B, C) and drives both a true output (Y) and a complementary output (W), with an active-low enable (G) input that forces both outputs low when asserted. A multiplexer (MUX) is a combinational logic device that routes one of several input signals to a single output line, forming a key element in the hierarchy of digital logic ICs: MUX -> combinational logic -> logic IC -> semiconductor. Multiplexers perform parallel-to-serial conversion, data source selection, and Boolean function generation of up to four variables in a single package. Key features include operation from 1.5V to 5.5V supply per the AC family specification, balanced noise immunity of 30% of the supply voltage, and propagation delays as low as 5.5 ns at 5V - speed comparable to bipolar F, AS, and S logic families with CMOS low static power consumption. Outputs source or sink up to 24 mA, enabling direct drive of substantial fan-out loads. The advanced CMOS process delivers high noise immunity and low quiescent dissipation, with TTL-level input compatibility at 5V operation. Balanced propagation and transition times minimize output skew in high-speed systems. The wide -55C to +125C operating range of this package supports industrial and military-temperature designs. Typical applications include microprocessor data routing, parallel-to-serial converters, Boolean function generators, communication channel selection, and test-equipment signal switching, where the complementary W output eliminates the need for an external inverter. Design tip: properly terminate the enable and select lines to avoid undefined states, and use a pull-up or pull-down resistor on Y/W when the device may be disabled. Account for input capacitance when routing high-speed signals. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
CD74AC151QM96Q1 - 8:1 Mux, AEC-Q100 | Texas Instruments
The Texas Instruments CD74AC151QM96Q1 is an automotive-grade (AEC-Q100 qualified) 8-line to 1-line data selector/multiplexer in a 16-pin SOIC (M) package. It belongs to the CD74AC Advanced CMOS logic family, which supports operation from 1.5 V to 5.5 V with balanced noise immunity of 30% of the supply voltage. The device selects one of eight data sources under control of a 3-bit address and provides both true (Y) and complementary (W) outputs with a strobe/enable input. A digital multiplexer is a combinational logic circuit that forwards one of several input signals to a single output line, selected by binary control address inputs. In the logic IC hierarchy, the multiplexer sits under combinational logic > data routing ICs within the broader category of 4000/7400-family digital logic. Multiplexers can also act as Boolean function generators of up to four variables, parallel-to-serial converters, and data source selectors. Key features include 8:1 selection with complementary outputs, high-speed AC-family switching comparable to bipolar F, AS, and S speed classes, operation up to 5.5 V, and balanced CMOS noise immunity. The Q1 suffix denotes AEC-Q100 qualification, making the part suitable for automotive and harsh-environment designs where temperature cycling, ESD robustness, and quality requirements exceed commercial grades. The CD74AC151 uses advanced CMOS technology for low static power consumption combined with fast propagation delays, making it appropriate for address decoding, sensor-source selection, and data-routing in automotive ECUs, industrial control modules, and instrumentation front ends. Typical applications include automotive body and powertrain control modules selecting among sensor channels, parallel-to-serial data conversion in microcontroller-based systems, and universal logic-function generation in FPGA glue logic and test equipment. Design tip: tie the strobe (active-low enable) low for continuous selection, and keep unused data inputs at defined logic levels to prevent floating CMOS inputs that increase supply noise and current.