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MC9S08SE4CRL - S08 8-bit MCU, 4KB Flash, 20MHz, 28-PDIP | NXP
MC9S08SE4CRL

MC9S08SE4CRL - S08 8-bit MCU, 4KB Flash, 20MHz, 28-PDIP | NXP

The NXP (Freescale Semiconductor) MC9S08SE4CRL is a cost-effective 8-bit microcontroller unit based on the high-performance HCS08 (S08) core, running at 20 MHz CPU frequency (10 MHz internal bus), with 4 KB (4K x 8) of FLASH program memory, housed in a 28-pin PDIP package (0.600 inch / 15.24 mm width). An 8-bit microcontroller is a single-chip computer that integrates a processor core, program memory, data memory, and peripherals on one die, positioned within the broader hierarchy of embedded processors: MCU -> microcontroller -> embedded processor -> semiconductor device. The S08 family succeeds the HC08 family, providing excellent compatibility with Freescale's 5V MCU portfolio, including pin, peripheral, and tool compatibility, which simplifies migration between family members. Key features of the MC9S08SE4CRL include the 20 MHz HCS08 central processing unit (CPU) with HC08 assembly source compatibility, 4 KB of in-circuit reprogrammable FLASH memory, operation from both 3.3V and 5V supplies (per distributor parametric data), and a low-cost entry point for high-volume designs. The S08SE series integrates typical S08 peripherals such as timers, serial communication interfaces, and ADC channels - consult the manufacturer datasheet for the exact peripheral configuration of this memory-density variant. Architecture-wise, the HCS08 core uses a CISC instruction set with upward-compatible HC08 object code, a background debug module (BDM) for non-intrusive on-chip debugging, and internal bus operation at half the CPU clock rate, delivering deterministic 8-bit real-time performance suitable for cost-sensitive control tasks. Typical applications include small home appliances, low-cost consumer electronics, battery chargers, simple motor control, industrial sensors, and legacy 5V system replacements where HC08 compatibility and PDIP through-hole mounting are required for prototyping and low-volume production. For design, note that the PDIP package eases hand assembly and rework on 2.54 mm pitch prototyping boards; verify supply-voltage-dependent parameter limits in the datasheet when running at 3.3V versus 5V. This page consolidates distributor pricing, lifecycle/sourcing information, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.

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MC9S08SE4CTG - 20MHz 8-Bit S08 MCU, 4KB Flash | NXP
MC9S08SE4CTG

MC9S08SE4CTG - 20MHz 8-Bit S08 MCU, 4KB Flash | NXP

NXP Semiconductors MC9S08SE4CTG is an 8-bit HCS08 microcontroller with a 20 MHz CPU, 4 KB of Flash program memory, and a 16-pin TSSOP package. The device belongs to the S08SE family, a cost-focused 5 V MCU series built around the 8-bit S08 core and a 10 MHz internal bus. NXP identifies the MC9S08SE4CTG as end of life, so procurement should include a lifecycle review before committing to new production designs. A microcontroller is an integrated circuit that combines a processor core, program memory, data memory, peripherals, and I/O in one package. The S08 architecture belongs to the 8-bit MCU hierarchy and provides a straightforward platform for embedded control. Within that hierarchy, MC9S08SE4CTG targets compact control tasks requiring modest Flash capacity, a 5 V supply environment, and a compact surface-mount footprint. The principal specifications are an 8-bit HCS08 central processing unit, a 20 MHz maximum operating frequency, 4 KB of Flash memory, and a 10 MHz internal bus frequency. The family description emphasizes compatibility with Freescale's 5 V MCU portfolio, including peripheral and tooling compatibility. Its small Flash capacity suits bootloaders, simple sequencers, compact controllers, and accessory modules rather than graphics-heavy or connectivity-intensive applications. The S08 core provides a straightforward instruction set and integrated control peripherals, while the 10 MHz internal bus accommodates the 20 MHz CPU architecture without requiring a fast external-memory interface. Because the MCU is intended for cost-sensitive embedded designs, software architecture should treat the 4 KB Flash limit as a primary design constraint. External serial EEPROM can extend data storage when parameter logging or nonvolatile configuration is required. Typical uses include low-cost industrial controllers, appliance interfaces, small sensor nodes, battery-operated accessories, programmable timers, and simple motor-control front ends. The 16-pin TSSOP is particularly useful where board area is constrained and a through-hole or larger surface-mount package would be unnecessary. Firmware should be validated at the 20 MHz maximum clock, with oscillator tolerance, supply voltage, and peripheral timing included in the worst-case analysis. The main design trade-off is the limited 4 KB Flash capacity. Engineers should minimize library size, reserve space for boot code or updates where required, and use external EEPROM for larger nonvolatile data. The TSSOP package also has closely spaced leads, so inspect the manufacturer land pattern carefully and maintain adequate soldermask clearance. No external memory-bus or advanced analog specification should be assumed without checking the full device documentation. This product page combines lifecycle status, core specifications, family-level compatibility information, application guidance, and drop-in migration considerations. It helps engineers distinguish a direct same-package replacement from a redesign and plan sourcing for an end-of-life 8-bit MCU while keeping code, hardware, and schedule risk visible.

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MC9S08SE4CWL - 8-Bit 20MHz 4KB MCU | NXP | SOIC-28
MC9S08SE4CWL

MC9S08SE4CWL - 8-Bit 20MHz 4KB MCU | NXP | SOIC-28

The NXP MC9S08SE4CWL is an 8-bit S08 microcontroller operating at up to 20 MHz, with 4 KB of flash memory and a 28-pin SOIC package. The verified distributor listing identifies it as a cost-effective 5 V MCU, while the available comparison data describes the S08SE family as an enhanced S08-core platform with a 10 MHz internal bus frequency. A microcontroller is a programmable integrated circuit that combines a CPU core, memory, and peripherals in one device. The S08 family is positioned as a cost-effective 8-bit MCU platform, and the MC9S08SE4CWL is intended for embedded control tasks where modest processing capacity, compact packaging, and established Freescale/NXP S08 compatibility are useful. Its 20 MHz CPU enables basic control loops, digital I/O handling, timing functions, and communication-interface integration. The key verified characteristics are the 8-bit CPU architecture, 20 MHz operating frequency, 4 KB flash, 4K x 8 organization, 28-pin SOIC package, and 5 V MCU classification. The related S08SE documentation describes compatibility with Freescale 5 V MCU portfolios and identifies the enhanced S08 core and 10 MHz internal bus. Detailed RAM, peripherals, electrical limits, and timing parameters were not included in the supplied verified data and are therefore marked as data needed rather than estimated. Typical engineering uses include small industrial controllers, sensor-interface boards, keypad and display products, simple motor or relay-control systems, and compact consumer products that retain the S08 software ecosystem. Because the target is marked End of Life on the NXP product page, new designs should confirm availability, migration requirements, and any recommended replacement before committing to production. For a new PCB, engineers should verify the exact pinout, oscillator requirements, supply limits, programming method, and peripheral assignments against the official NXP data sheet before layout. For an existing design, the 28-pin SOIC footprint is not sufficient proof of drop-in equivalence; pin functions, memory size, voltage requirements, clock behavior, and software compatibility must all be checked. This page consolidates the verified distributor classification, package, memory, speed, lifecycle indication, and sourcing references with practical selection guidance. It does not infer unavailable electrical limits or claim unverified replacements.

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MC9S08SE4MTG - 8-bit 20MHz 4KB Flash MCU | NXP | 16-TSSOP
MC9S08SE4MTG

MC9S08SE4MTG - 8-bit 20MHz 4KB Flash MCU | NXP | 16-TSSOP

The NXP Semiconductors MC9S08SE4MTG is an 8-bit HCS08 microcontroller from the MC9S08SE family, featuring a 20 MHz CPU core with 10 MHz internal bus frequency and 4 KB of on-chip Flash memory. Housed in a 16-pin TSSOP (Thin Shrink Small Outline Package) with surface-mount gull-wing leads, the device belongs to Freescale/NXP's 5V MCU portfolio and is targeted at low-cost 8-bit applications requiring a wider operating voltage headroom than typical 3.3V MCUs. What is an 8-bit microcontroller? An 8-bit MCU is a small computer-on-a-chip built around an 8-bit data path, integrating a CPU, RAM, non-volatile program memory (Flash/ROM), timers, communication peripherals (UART, SPI, I2C), analog-to-digital converters, and general-purpose I/O. MCUs occupy the bottom of the embedded computing hierarchy (microcontroller -> embedded processor -> computing platform), making them the dominant choice for appliance control, sensor readout, automotive body electronics, and consumer device firmware where cost and deterministic real-time response matter more than raw computational throughput. Key features of the MC9S08SE4MTG include a 20 MHz HCS08 central processing unit, 4 KB Flash program memory, multiple low-power modes, an on-chip oscillator, and background debug mode support. The 5V supply range allows direct interfacing with legacy 5V peripherals, automotive 12V battery-derived rails, and industrial 24V systems after regulation, eliminating level shifters in many designs. From an architectural standpoint, the HCS08 core is a modernized, fully-static CMOS upgrade of the classic HC08 instruction set, featuring a BDC (Background Debug Controller) for in-circuit programming and a multiplexed address/data bus for peripheral access. Compared to the older HC08, the HCS08 adds a wider instruction set with improved indexing modes, lower power consumption, and integrated voltage regulation for the core logic. Typical applications include automotive body controllers (lighting, seat, mirror modules), white-goods and appliance control boards, industrial sensor interfacing, low-cost consumer devices, and remote controls that benefit from 5V tolerance and small TSSOP packaging. When designing with this MCU, ensure proper decoupling on VDD/VSS and follow the recommended PCB layout for the TSSOP-16 thermal and EMI behavior. Note that part production status should be checked before committing to a long-lifecycle design. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes not found in the manufacturer datasheet alone.

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MC9S08SE4MWL - 8-Bit 20MHz S08 MCU, 4KB Flash | NXP
MC9S08SE4MWL

MC9S08SE4MWL - 8-Bit 20MHz S08 MCU, 4KB Flash | NXP

The NXP MC9S08SE4MWL is an 8-bit S08 family microcontroller built on the HCS08 CPU core, delivering 20 MHz CPU clock (10 MHz internal bus) with 4 KB of embedded Flash in a 28-pin SOIC package. The device is part of the cost-effective, high-performance S08 family and provides pin, peripheral, and tool compatibility with the legacy Freescale 5V MCU portfolio, enabling drop-in upgrades for existing 5V designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripheral set (timers, ADC, communication interfaces), and I/O into one package. The S08 family belongs to the 8-bit microcontroller hypernym hierarchy: 8-bit MCU -> embedded processor -> microcontroller -> integrated circuit -> semiconductor. It is the cost- and power-optimized tier below 32-bit Cortex-M microcontrollers, and is widely used where deterministic bit-manipulation, ultra-low sleep current, and minimal BOM cost matter more than raw compute throughput. Key features of the MC9S08SE4MWL include the HCS08 central processor with 20 MHz operation, 4 KB of Flash, on-chip voltage regulator supporting 3.3V/5V operation, multiple timer modules, and standard serial communication peripherals. The wide 2.7V to 5.5V supply range makes it suitable for both battery-powered and industrial 5V bus systems without external level shifters. Architecturally, the S08SE family uses a von-Neumann bus architecture with a 16-bit address space and an enhanced HCS08 instruction set that is fully compatible with the legacy HC08 ISA. Internal peripherals are clocked from the bus, and the integrated voltage regulator and brownout detector simplify power-supply design. Designers can migrate between S08SE family members (SE4/SE8) with the same toolchain and peripheral set, scaling Flash and RAM without changing the PCB layout. Typical applications include low-cost 5V industrial control, home appliances, motor control (small BLDC and stepper), sensor nodes, battery chargers, and automotive body electronics. The 28-SOIC package is hand-soldering friendly, making it popular for prototypes and low-volume production. When designing with the MC9S08SE4MWL, ensure that the BDM (Background Debug Mode) pins are accessible for in-circuit programming, and add a bulk decoupling capacitor near the VDD pin. Avoid routing high-speed signals across the analog AVSS/AVDD pair to minimize ADC noise coupling. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that complement the manufacturer datasheet with selection guidance not found on stock-shop pages.

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MC9S08SE4VTG 20MHz 8-Bit 4KB Flash MCU | NXP
MC9S08SE4VTG

MC9S08SE4VTG 20MHz 8-Bit 4KB Flash MCU | NXP

The NXP Semiconductors MC9S08SE4VTG is an 8-bit HCS08 microcontroller with a 20 MHz S08 core, 4 KB of Flash program memory, 256 x 8 RAM, and 14 general-purpose I/O pins in a 16-pin TSSOP package. It is designed for compact 5 V embedded-control designs and includes LINbus and SCI connectivity, PWM, low-voltage detection, and power-on reset features. An 8-bit microcontroller is a programmable integrated circuit that executes firmware from embedded Flash memory and uses peripherals to monitor inputs and control outputs. Within the broader semiconductor hierarchy, the MC9S08SE4VTG belongs to the S08SE family of HCS08 microcontrollers, combining a small CPU core with communication interfaces, timing functions, and embedded memory. Its 20 MHz operating speed provides a practical balance between processing capability, power consumption, and design simplicity for cost-sensitive embedded systems. The verified product information identifies an 8-bit processor, 20 MHz speed, 4 KB (4K x 8) Flash, 256 x 8 RAM, 14 I/O pins, LINbus and SCI connectivity, PWM peripherals, low-voltage detection, and power-on reset. The MC9S08SE4VTG is packaged in a 16-TSSOP gull-wing package and is associated with an industrial temperature grade. These features make it appropriate for compact motor, control, sensing, communication, and industrial-control products. The S08SE family is positioned as a cost-effective 5 V MCU platform with pin, peripheral, and tool compatibility with the broader Freescale 5 V MCU portfolio. Firmware migration and board validation remain essential when changing between devices with different flash, RAM, peripheral, or pin assignments. The product page identifies the part as End of Life, so new production purchasing should be confirmed before committing to a design. Typical applications include low-cost sensor nodes, small motor controllers, keypad and display interfaces, industrial modules, and LIN-connected equipment. The MCU can use SCI for point-to-point serial communication and LINbus for automotive or industrial network interfaces, while PWM and general-purpose I/O support actuator and discrete-control functions. The 16-TSSOP package also helps reduce board footprint compared with larger through-hole packages. For new designs, verify supply status, pin mapping, memory limits, reset behavior, and peripheral configuration with the manufacturer datasheet and current NXP product documentation. This page consolidates the verified distributor and manufacturer search results, available technical attributes, lifecycle information, and sourcing context without inventing missing electrical details.

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MC9S08SE4VWL - 8-Bit S08 MCU, 4KB Flash, LINbus | NXP
MC9S08SE4VWL

MC9S08SE4VWL - 8-Bit S08 MCU, 4KB Flash, LINbus | NXP

The NXP MC9S08SE4VWL is an 8-bit HCS08 S08-family microcontroller integrating a 20 MHz CPU core, 4 KB of on-chip Flash program memory, 256 bytes of RAM, and a 28-pin SOIC wide-body package. It provides 24 general-purpose I/O lines, LINbus and SCI communication peripherals, PWM, LVD and POR supervision, and is qualified for the industrial temperature range. Per the NXP part listing on DigiKey, the device is shipped in a 28-SOIC (0.295 inch / 7.50 mm width) package and is a member of NXP's low-cost S08SE family designed for LIN-slave body-electronics nodes. A microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash or ROM), data memory (RAM), and a configurable set of peripherals (timers, ADCs, communication blocks, GPIOs). The 8-bit class targets cost-sensitive, deterministic embedded control where bit-manipulation and low-power sleep modes are valued more than raw compute throughput. Within the Freescale/NXP taxonomy the S08 (HCS08) sits below the Cortex-M0+ Coldfire+ parts as an entry-level node, and the S08SE sub-family in particular targets LIN-slave automotive body and appliance control. Key features of the MC9S08SE4VWL include a 20 MHz bus clock (typical instruction cycle ~50 ns at the maximum rated frequency), background-debug-mode (BDM) support for in-system programming, an internal clock source option, edge-triggered interrupts with a programmable priority scheme, and on-chip regulators supporting a single 3.3 V or 5 V supply. The 256-byte RAM and 4 KB Flash memory bound the device to small, deterministic control loops typical of seat modules, mirror adjusters, lighting clusters, and household appliances. The 28-SOIC wide-body footprint allows hand-solderable rework on legacy through-hole-style assemblies. Typical applications include automotive body-electronics LIN slave nodes (window lift, wiper controller, HVAC damper), major-appliance user-interface panels, simple sensor-conditioning front-ends, and industrial low-cost sensor read-out interfaces. The S08 instruction-set compatibility preserves software investment when migrating between S08 family members. When designing with this device, add a 100 nF decoupling capacitor within 2 mm of each supply pin, leave the LIN physical-layer transceiver external, and verify the BDM connector matches the standard 6-pin NXP BDM header or its 2-pin reduced-pinout variant. Programs migrating from S08QD/S08QG parts should recheck the integrated ADC channel-count, since the S08SE family has fewer analog channels than the QE/QG lines. This page synthesizes distributor stock positions, drop-in alternatives within the S08 family, and selection criteria not found in the manufacturer datasheet front-matter.

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MC9S08SE8CRL - 20MHz 8-bit MCU with 8KB Flash | NXP
MC9S08SE8CRL

MC9S08SE8CRL - 20MHz 8-bit MCU with 8KB Flash | NXP

NXP Semiconductors MC9S08SE8CRL is an 8-bit HCS08 microcontroller operating at up to 20 MHz, with 8 KB of flash memory, 512 bytes of RAM, and 24 I/O pins in a 28-pin PDIP package. The device supports operation from 3.3 V to 5 V and uses a 10 MHz internal bus frequency. A microcontroller is a programmable semiconductor that combines a CPU, memory, and peripherals in one integrated device. The MC9S08SE8 belongs to the S08 family of 8-bit microcontrollers, a category commonly used for embedded control in appliances, industrial equipment, access systems, and compact consumer products. Its low-cost architecture provides a practical platform for reading inputs, controlling outputs, and executing firmware without a separate processor and support chips. The MC9S08SE8CRL's principal features include a 20 MHz HCS08 CPU, 8 KB flash memory, 512 bytes of RAM, 24 I/O lines, and operation across 3.3 V and 5 V supply levels. Listed peripherals include SCI communication, LIN bus capability, PWM, low-voltage detection, and power-on reset. These functions support connected embedded products without requiring a higher-complexity processor architecture. The HCS08 CPU operates at up to 20 MHz while the internal bus runs at 10 MHz. Flash memory supports firmware storage, while the 512-byte RAM provides working space for stack variables, register data, and short routines. The 24 available I/O pins allow external sensors, switches, indicators, actuators, and communication interfaces to be connected while leaving four package pins dedicated to power and control functions. Typical applications include appliance controllers, industrial interfaces, motor-control helpers, access-control equipment, and low-cost embedded control modules. SCI and LIN connectivity are useful when the controller must communicate with sensors, actuators, service tools, or other embedded nodes. PWM is applicable to lighting, fan, and basic motor-control functions, while the 5 V-compatible operating range supports conventional industrial and consumer electronics. When designing a PCB for this part, use the manufacturer datasheet pin description table to assign every 28-pin PDIP lead and preserve the required power connections. Review reset, clock, and programming interfaces before final routing. Because this is a legacy 8-bit MCU with a limited memory footprint, software should be sized around 8 KB of flash and 512 bytes of RAM rather than assuming resources comparable with a 32-bit microcontroller. This product record combines the manufacturer data sheet and reference manual with package details, interface characteristics, lifecycle information, and practical selection guidance. It also distinguishes the target from nearby devices whose memory, clock speed, package, or product status make them unsuitable as literal PCB drop-in replacements.

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MC9S08SE8CTG - 20MHz 8-bit MCU, 8KB Flash | NXP (Tape & Reel)
MC9S08SE8CTG

MC9S08SE8CTG - 20MHz 8-bit MCU, 8KB Flash | NXP (Tape & Reel)

The NXP Semiconductors MC9S08SE8CTG is an 8-bit HCS08 microcontroller operating at up to 20 MHz, with 8 KB of Flash program memory, 512 bytes of RAM, and 14 I/O pins in a 16-TSSOP package. It is designed for compact embedded control systems that require deterministic 8-bit processing and integrated communication peripherals. A microcontroller is a semiconductor device that integrates a CPU, program memory, data memory, I/O, and peripherals into one embedded-control building block. The S08 MCU family belongs to the broader embedded processor and microcontroller hierarchy, combining a simple central processing unit with timers, serial interfaces, and communication functions for motor, appliance, and industrial-control systems. Key verified features include a 20 MHz HCS08 CPU, 10 MHz internal bus frequency, 8 KB (8K x 8) Flash memory, 512 x 8 RAM, 14 I/O pins, and SCI and LINbus connectivity. The device also includes low-voltage detection, power-on reset, and PWM peripherals according to the distributor and manufacturer-oriented data supplied. Its 16-TSSOP package supports compact surface-mount PCB layouts. The 8-bit architecture is appropriate for control loops, sensor conditioning, keypad scanning, actuator supervision, and low-to-medium-complexity embedded products. Flash memory supports firmware storage, while the serial communication peripherals enable connection to sensors, modules, or supervisory electronics. The 20 MHz CPU class supports responsive control without the complexity of a higher-bit processor. Typical uses include small motor controllers, appliance interfaces, embedded instrumentation, LIN-connected automotive or industrial subsystems, and compact consumer products. Designers should verify the complete pinout, electrical limits, oscillator configuration, and peripheral resource allocation in the manufacturer datasheet before finalizing a PCB or firmware. A key design consideration is decoupling and clock stability: place required bypass capacitors close to the supply pins and follow the manufacturer’s recommended oscillator and reset arrangements. Confirm that the selected 16-TSSOP footprint, programming method, and communication requirements match the target system before production. This page consolidates verified distributor specifications, sourcing information, package details, application context, and engineering caveats so engineers can evaluate the MC9S08SE8CTG against other embedded-control options without relying on unverified assumptions.

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MC9S08SE8CTGR - 20MHz 8-bit MCU, 8KB Flash | NXP
MC9S08SE8CTGR

MC9S08SE8CTGR - 20MHz 8-bit MCU, 8KB Flash | NXP

The NXP Semiconductors MC9S08SE8CTGR is an 8-bit HCS08 microcontroller operating at up to 20 MHz, with 8 KB of Flash program memory, 512 bytes of RAM, and 14 I/O pins in a 16-TSSOP package. It is designed for compact embedded control systems that require deterministic 8-bit processing and integrated communication peripherals. A microcontroller is a semiconductor device that integrates a CPU, program memory, data memory, I/O, and peripherals into one embedded-control building block. The S08 MCU family belongs to the broader embedded processor and microcontroller hierarchy, combining a simple central processing unit with timers, serial interfaces, and communication functions for motor, appliance, and industrial-control systems. Key verified features include a 20 MHz HCS08 CPU, 10 MHz internal bus frequency, 8 KB (8K x 8) Flash memory, 512 x 8 RAM, 14 I/O pins, and SCI and LINbus connectivity. The device also includes low-voltage detection, power-on reset, and PWM peripherals according to the distributor and manufacturer-oriented data supplied. Its 16-TSSOP package supports compact surface-mount PCB layouts. The 8-bit architecture is appropriate for control loops, sensor conditioning, keypad scanning, actuator supervision, and low-to-medium-complexity embedded products. Flash memory supports firmware storage, while the serial communication peripherals enable connection to sensors, modules, or supervisory electronics. The 20 MHz CPU class supports responsive control without the complexity of a higher-bit processor. Typical uses include small motor controllers, appliance interfaces, embedded instrumentation, LIN-connected automotive or industrial subsystems, and compact consumer products. Designers should verify the complete pinout, electrical limits, oscillator configuration, and peripheral resource allocation in the manufacturer datasheet before finalizing a PCB or firmware. A key design consideration is decoupling and clock stability: place required bypass capacitors close to the supply pins and follow the manufacturer’s recommended oscillator and reset arrangements. Confirm that the selected 16-TSSOP footprint, programming method, and communication requirements match the target system before production. This page consolidates verified distributor specifications, sourcing information, package details, application context, and engineering caveats so engineers can evaluate the MC9S08SE8CTGR against other embedded-control options without relying on unverified assumptions.

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MC9S08SE8CWL - 20MHz 8KB 8-Bit MCU | NXP | 28-SOIC
MC9S08SE8CWL

MC9S08SE8CWL - 20MHz 8KB 8-Bit MCU | NXP | 28-SOIC

The NXP Semiconductors MC9S08SE8CWL is an 8-bit S08SE-series microcontroller with a 20 MHz HCS08 CPU, 8 KB of flash program memory, and a 28-pin SOIC package. It operates from a 2.7 V to 5.5 V supply and includes a 10-bit ADC, 512 bytes of RAM, and an internal oscillator. The device is positioned as a low-cost 5 V MCU for compact embedded control designs. A microcontroller is a programmable integrated circuit containing a processor core, memory, and peripherals on one die. The S08 architecture belongs to the 8-bit embedded-control segment, where instruction simplicity, deterministic peripheral access, and broad I/O availability are often more important than maximum processing throughput. The MC9S08SE8CWL is therefore useful for control tasks involving digital inputs, analog measurement, timers, communications, and user-interface functions. Key device characteristics include 8 KB (8K x 8) flash memory, a 20 MHz CPU clock, a 10 MHz internal bus frequency, and a 10-channel 10-bit ADC. Its 2.7 V to 5.5 V operating range supports both 3.3 V and 5 V systems. The 28-pin SOIC package provides a conventional surface-mount footprint while exposing enough pins for external sensors, actuators, communication interfaces, and general-purpose I/O. The S08SE family is designed to maintain compatibility with the wider Freescale Semiconductor 5 V MCU portfolio at the peripheral, pin, and tooling levels. Its flash memory supports field-programmable embedded applications, while the 10-bit ADC provides useful resolution for monitoring potentiometers, resistive sensors, and simple analog control loops without requiring a separate converter. Typical uses include low-cost appliance controllers, small industrial monitoring modules, digital thermometers, keypad interfaces, LED indicators, compact sensor nodes, and basic motor or actuator controllers. The 20 MHz clock provides adequate headroom for interrupt-driven control, while the 8 KB program-memory ceiling favors concise firmware and peripheral-heavy designs. Hardware design should preserve adequate decoupling at the supply pins and assign each analog input with suitable signal conditioning. Firmware should also account for the 8 KB flash limit, verify reset and interrupt behavior, and use the manufacturer's pin-description table when assigning the 28 available package connections. This page combines manufacturer specifications, package details, practical application guidance, and a qualification-focused comparison of candidate replacements. It is intended to help engineers assess compatibility before committing a 28-SOIC PCB design to the MC9S08SE8CWL.

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MC9S08SE8MRL - 8-Bit S08 MCU, 8KB Flash, 20MHz | NXP | DIP-28
MC9S08SE8MRL

MC9S08SE8MRL - 8-Bit S08 MCU, 8KB Flash, 20MHz | NXP | DIP-28

The NXP MC9S08SE8MRL is an 8-bit HCS08 CISC microcontroller in the cost-effective S08SE family, featuring 8KB of Flash program memory, 20 MHz CPU clock, and a 28-pin PDIP through-hole package. It supports both 3.3V and 5V operation, includes on-chip peripherals such as PWM, LVD, WDT, and multi-protocol connectivity (I2C, LINbus, SCI, SPI), and offers 22 general-purpose I/O lines for flexible embedded designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and peripheral subsystems onto one die. The S08 core used here is NXP's HCS08 8-bit CISC architecture targeting low-cost, deterministic embedded control. Within the broader taxonomy, the S08SE belongs to the 8-bit microcontroller class, sitting beneath 16-bit (S12) and 32-bit (Kinetis/ColdFire) families in NXP's portfolio, and is often chosen where simple I/O control, motor drive signaling, or LIN-bus slave communication is needed without the overhead of ARM-class silicon. Key features of the MC9S08SE8MRL include 8KB on-chip Flash with in-application reprogrammability, 20 MHz maximum bus clock derived from an internal oscillator or external crystal, multiple low-power modes for battery-friendly designs, hardware LVD (Low-Voltage Detect) for brown-out resilience, and an integrated watchdog timer. The 28-pin PDIP form factor is also well suited to breadboarding, education kits, and legacy through-hole designs where surface-mount is impractical. Typical applications include automotive body controllers, appliance control boards, consumer electronics user-interface modules, LIN-bus slave nodes, low-cost sensor hubs, and industrial remote/keypad modules. The wide 2.7V-5.5V supply range simplifies both 3.3V and 5V system designs. When designing with this part, ensure your emulator/debugger (such as the P&E Multilink or USB-BDM) supports the HCS08 BDM interface for code development and Flash programming. Decouple VDD/VSS with 100nF ceramic capacitors placed within 5mm of the pins, and respect the 5V absolute-maximum rating on I/O lines even when the MCU runs at 3.3V. This page synthesizes distributor stock data, NXP-original drop-in alternatives, and practical design notes not typically consolidated on a single supplier listing.

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MC9S08SE8MTG - 8KB Flash 8-bit 5V MCU | NXP | 16-TSSOP
MC9S08SE8MTG

MC9S08SE8MTG - 8KB Flash 8-bit 5V MCU | NXP | 16-TSSOP

The NXP MC9S08SE8MTG is a low-cost 8-bit HCS08 CISC microcontroller with 8KB of Flash memory, 20 MHz CPU speed, and 512-byte RAM, housed in a 16-pin TSSOP package. It operates from 2.7V to 5.5V supply and is rated for the automotive/industrial -40C to +125C temperature range. Designed for cost-sensitive embedded applications, it integrates a 10-bit ADC, timers, and multiple communication peripherals in a small surface-mount footprint. An 8-bit microcontroller (MCU) is a small computer-on-a-chip that contains a CPU, memory (Flash for program storage and RAM for data), and peripherals on a single silicon die. The HCS08 family is NXP's (formerly Freescale) low-power 8-bit core architecture; within the broader taxonomy, it sits below 32-bit ARM Cortex-M microcontrollers in compute capability but above 4-bit legacy controllers in software ecosystem. The MC9S08SE8MTG is part of the SE family, which targets ultra-low-cost applications where simple digital control replaces discrete logic or electromechanical timing circuits. Key features of the MC9S08SE8MTG include an integrated 10-bit ADC with multiple channels, hardware timers supporting PWM generation, an SCI (UART) serial interface for communication with host systems, and a low-power Wait/Stop mode. The 5V-tolerant I/O and wide supply range make it suitable for direct interfacing with legacy 5V logic. Internal clock generation with an FLL (Frequency Locked Loop) reduces external component count, allowing the device to operate from a single supply without an external crystal. The MC9S08SE8MTG's 20 MHz bus frequency, 8KB in-system programmable Flash, and TSSOP-16 footprint position it for applications that need reliable 8-bit control in a small board area. The CISC HCS08 instruction set is backward-compatible with the HC08 family, easing migration for existing designs. On-chip debug and BDM (Background Debug Mode) interface simplify firmware development. Typical applications include low-cost appliance controllers, automotive body electronics, sensor signal conditioning, simple user-interface boards, LED lighting controllers, and battery-powered consumer devices. The wide operating voltage also makes it suitable for USB-powered peripherals and industrial sensor nodes. Designers should note the 16-pin TSSOP package imposes I/O pin count limits; high-pin-count peripherals may require a larger package variant. For applications requiring more memory or peripherals, consider other members of the S08 family before finalizing the design. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes for the MC9S08SE8MTG not found in the manufacturer datasheet alone.

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MC9S08SE8VRL - 8KB Flash 8-Bit S08 20MHz MCU | NXP 28-PDIP
MC9S08SE8VRL

MC9S08SE8VRL - 8KB Flash 8-Bit S08 20MHz MCU | NXP 28-PDIP

The NXP (formerly Freescale) MC9S08SE8VRL is an 8-bit HCS08-family microcontroller featuring 8KB of Flash program memory, 512 bytes of RAM, and a 20MHz CPU core, housed in a 28-pin PDIP through-hole package. It belongs to the low-cost S08SE series targeting cost-sensitive 5V embedded applications such as personal care devices, consumer goods, power tools, and small appliances. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, integrating a CPU, program memory (Flash/ROM), data memory (RAM), timers, communication peripherals, and I/O pins on one die. The MC9S08SE8VRL sits within the S08 sub-family of the broader HCS08 architecture — a CISC core descended from the M68HC08 line that excels at byte-oriented control tasks with predictable interrupt latency. In the component taxonomy it occupies the 8-bit MCU node, sitting below 16-bit (S12) and 32-bit (ColdFire/ARM Cortex-M) MCUs within Freescale/NXP's automotive and industrial portfolio. Key features include an integrated 20MHz internal oscillator eliminating the need for an external crystal, 24 general-purpose I/O pins, multiple timer/PWM modules, and an on-chip 5V regulator that supports operation directly from a 5V battery or unregulated supply. The S08SE series was specifically designed for human-interface and appliance applications where BOM cost and robustness outweigh raw processing throughput. Architecturally, the S08 core executes most instructions in 1-2 bus cycles and supports a Background Debug Mode (BDM) for non-intrusive in-circuit programming and debugging via a single-wire interface. The integrated voltage regulator with internal trimming and brownout detection provides high noise immunity in motor-control environments, while the 5V-tolerant I/O simplifies connection to legacy analog and power components commonly found in appliance subsystems. Typical applications include BLDC and universal-motor control in power tools and vacuum cleaners, sensor management in security systems and treadmill consoles, motor commutation in robotic lawnmowers, and user-interface/HMI control in white goods. The wide operating voltage (typically 2.7V to 5.5V) and integrated peripherals (ADC, PWM, timers, SCI/SPI, IIC) cover most cost-driven sub-system designs without external glue logic. When designing with the MC9S08SE8VRL, place decoupling capacitors (100nF plus 4.7uF bulk) within 10mm of the VDD pins and avoid running high-current motor traces parallel to the crystal-less oscillator PCB region to minimize EMI-induced clock drift at high temperatures. This page synthesizes distributor pricing, drop-in S08 alternatives in the same 28-PDIP footprint, and practical design notes not found in the standalone manufacturer datasheet.

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MC9S08SE8VTG - S08 8-bit MCU, 8KB Flash, 20MHz, 16-TSSOP | NXP
MC9S08SE8VTG

MC9S08SE8VTG - S08 8-bit MCU, 8KB Flash, 20MHz, 16-TSSOP | NXP

The NXP MC9S08SE8VTG is an 8-bit HCS08 microcontroller in a 16-pin TSSOP package, featuring 8KB of Flash memory and a 20 MHz CPU with 10 MHz internal bus frequency. It is designed for cost-effective, high-performance 5V embedded applications. The device integrates 8KB Flash, 256B RAM, 14 GPIO pins, and a 5V-tolerant supply range, packaged in a compact TSSOP-16. A microcontroller (MCU) is a single-chip computer that contains a CPU, memory (Flash/RAM), and peripherals such as timers, ADCs, and communication interfaces. The HCS08 CPU is an enhanced 8-bit core from NXP (formerly Freescale) that upgrades the legacy HC08 instruction set with BGND, DAA, and additional addressing modes while remaining pin/peripheral compatible with older 5V HC08 designs. This places the MC9S08SE8VTG in the hierarchy: 8-bit MCU -> HCS08 family -> S08 sub-family -> general-purpose embedded controller. Key features include the enhanced S08 central processor, an internal clock with FLL, multiple timers (MTIM/TPM), ADC, SCI/UART, and SPI/I2C interfaces. The wide 2.7V to 5.5V supply range supports 5V industrial systems, while the 14 GPIOs and 16-pin TSSOP footprint suit space-constrained board designs. The integrated FLL provides ±2% accuracy across temperature, reducing the need for an external crystal. Typical applications include industrial 5V control, appliance control boards, fan/lighting controllers, low-cost sensor hubs, and 5V-replacement of legacy HC08 designs. The S08SE series is pin/peripheral compatible with many older HC08 devices, simplifying legacy migration. When designing with this device, ensure the ICS (Internal Clock Source) configuration matches your timing budget and use the FLL lock detection before relying on timing-sensitive peripherals. Decouple VDD/VSS with at least 100 nF placed within 5 mm of the pins. This page synthesizes NXP datasheet data, distributor pricing, drop-in alternative options, and practical design notes not collected on any single manufacturer or distributor page.

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MC9S08SE8VWL - 8-Bit S08 MCU, 8KB Flash, 20MHz, 28-SOIC | NXP
MC9S08SE8VWL

MC9S08SE8VWL - 8-Bit S08 MCU, 8KB Flash, 20MHz, 28-SOIC | NXP

The NXP MC9S08SE8VWL is an 8-bit S08 microcontroller from the cost-effective, high-performance HCS08 family, featuring 8KB of Flash, 1KB of RAM, and a 20MHz enhanced S08 core, packaged in a 28-pin SOIC (W) wide-body form factor. The device supports a 3.3V/5V dual-voltage operation range with an internal voltage regulator, and offers a rich peripheral set including timers, ADC, SCI, SPI, and I2C interfaces for embedded control. The S08SE family is part of the broader 8-bit MCU category, an entry-tier segment of microcontrollers that excels at deterministic, low-power real-time control tasks. Within the system hierarchy, the S08 sits below 16-bit (S12, MSP430) and 32-bit (Cortex-M) architectures, but remains the workhorse for cost-sensitive, pin- and code-compatible upgrades to legacy 5V HC05/HC08 designs. Its CISC instruction set with HCS08 enhancements offers compact code density and 16-bit internal addressing while retaining the simple programming model familiar to engineers working on appliance, industrial, and consumer products. Key features include an internal 20MHz bus clock from a trimming-capable oscillator, an 8-channel 12-bit ADC (with 10-bit mode option), one SCI (UART), one SPI, one I2C, two 16-bit timers (TPM), and an integrated low-voltage detect (LVD) module. The device includes 8KB of on-chip Flash with security and 512 bytes of EEPROM for non-volatile data storage. Wide operating voltage (2.7V-5.5V) and automotive-style temperature tolerance (-40C to +105C or +125C variants) make it robust for harsh environments. The MC9S08SE8 uses the S08 core with background debug mode (BDM), single-wire debug interface, and on-chip in-circuit programming. This enables rapid prototyping and field firmware updates via the standard Freescale/NXP BDM cable. The wide SOIC-28 package facilitates hand-soldering and low-cost PCB manufacturing. Typical applications include appliance control boards (washing machines, microwaves, HVAC), battery management systems, motor control for low-power DC fans and pumps, industrial sensor interfaces, and white-goods user-interface controllers. The pin compatibility with the MC9S08SE4VWL (4KB Flash) also makes it attractive for cost-tiered product families sharing a single PCB layout. When designing with this MCU, allocate a clean ground plane and place the decoupling capacitors (typically 100nF + 10uF bulk) as close to the VDD/VSS pins as possible. For noise-sensitive ADC readings, use a separate AVSS reference and a small RC filter on the analog supply pin. Toolchain support is provided by NXP CodeWarrior (legacy), MCUXpresso IDE, and GCC-compatible S08 ports, with the P&E Micro BDM Multilink as the standard debug probe. This page synthesizes distributor pricing, drop-in alternatives within the S08 family, and practical design notes not consolidated on the manufacturer datasheet alone.

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MC9S08SF4MTG - 40MHz 8-Bit S08 MCU | NXP Semiconductors
MC9S08SF4MTG

MC9S08SF4MTG - 40MHz 8-Bit S08 MCU | NXP Semiconductors

NXP Semiconductors MC9S08SF4MTG is an 8-bit S08 microcontroller optimized for precise, quiet, and safe control in simple motor-control applications. It operates at up to 40 MHz, provides 4 KB of programmable Flash memory, and is packaged in a 16-pin TSSOP. The device supports a 2.7 V to 5.5 V operating-voltage range and is designed for compact embedded-control systems. A microcontroller is a programmable semiconductor that combines a processor core, memory, timers, input/output ports, and communication peripherals on one integrated circuit. MC9S08SF4MTG belongs to the S08 8-bit microcontroller family and provides the deterministic control resources needed to read sensors, operate actuators, and manage embedded products. Its instruction set extends the HCS08 architecture with additional instructions. The S08 family includes six timers and as many as 18 general-purpose input/output pins, supporting accurate timing, pulse generation, sensing, and motor-control sequencing. Depending on the selected device and package configuration, 13 I/O ports are identified for MC9S08SF4MTG. The 40 MHz CPU provides greater execution headroom for motor-control algorithms than slower 8-bit controllers while retaining a compact, low-power architecture. The MC9S08SF4 MCU family is specifically optimized for precise and safe simple motor-control applications. Its combination of fast execution, dedicated timers, and broad GPIO access helps reduce software overhead in position, speed, or sequence-control systems. The 4 KB Flash capacity supports compact control firmware, while the 13 available I/O ports provide connections for sensors, switches, drivers, and status indicators. Typical applications include small brushless DC motor controllers, stepper-motor sequencers, fan and pump controllers, appliance-control modules, and compact industrial automation boards. The 16-TSSOP package, 0.65 mm pitch, and 2.7 V to 5.5 V supply range make the device suitable for space-constrained control boards operating from either 3.3 V or 5 V system rails. Designers should verify the exact pin assignments, peripheral routing, and programming requirements in the manufacturer datasheet before layout. Adequate decoupling, careful grounding, and separate routing of sensitive input signals remain essential for reliable motor-control behavior. This page also organizes lifecycle, application, replacement, and engineering information for faster component selection.

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MC9S08SF4MTJ - 40MHz 8-Bit S08 MCU | NXP
MC9S08SF4MTJ

MC9S08SF4MTJ - 40MHz 8-Bit S08 MCU | NXP

NXP Semiconductors MC9S08SF4MTJ is an 8-bit S08 microcontroller rated for operation up to 40 MHz, with 4 KB of embedded Flash memory and a 20-pin TSSOP package. Its 2.7 V to 5.5 V operating-voltage range and -40 °C to +125 °C temperature range support industrial and extended-temperature control applications. The device is intended for precise, quiet, and safe control in simple motor-control systems. An S08 microcontroller is a compact 8-bit embedded-processing platform based on the HCS08 instruction set. It belongs to the broader hierarchy of microcontroller, embedded processor, semiconductor, and electronic-control-system components. Compared with a general-purpose host processor, the MC9S08SF4MTJ combines a defined peripheral set and deterministic control hardware in a small package, making it suitable for dedicated appliances, motor mechanisms, and compact industrial controllers. The MC9S08SF4 family integrates up to 18 general-purpose input/output pins, six timers, and support for as many as 32 interrupt or reset sources. Its timer resources allow multiple timing, pulse-width modulation, and motor-control tasks to be coordinated by dedicated hardware. The HCS08-compatible instruction set includes the BGND instruction, while the integrated fault-protection features support safe shutdown behavior when configured for fault detection. The S08 CPU can operate at up to 40 MHz across a 2.7 V to 5.5 V supply range. This frequency headroom provides more instruction throughput than lower-rate 8-bit controllers without requiring a larger processor architecture. The 4 KB Flash configuration is appropriate for compact control firmware that must retain fast on-chip program storage while minimizing package size and system complexity. An internal 10-bit ADC feature is identified for this device family, although detailed converter ranges and timing require consultation of the manufacturer datasheet. Typical applications include small brushless DC motor controllers, simple motor mechanisms, fan and pump controllers, actuator interfaces, and embedded industrial control products. Multiple timers and GPIO resources allow a controller to monitor inputs, generate motor-drive timing signals, handle fault conditions, and coordinate external sensors. The wide supply range also accommodates both 3.3 V and 5 V system architectures where their electrical requirements are otherwise compatible. Designers should preserve the electrical and decoupling requirements in the manufacturer datasheet and place input and output bypass capacitors close to the supply pins. Firmware must reserve suitable GPIO pins for motor-control outputs, fault inputs, and shutdown signaling. Because the MCU can run as fast as 40 MHz, clock configuration, reset behavior, and unused-pin handling should be validated as a complete hardware-software design rather than treated as isolated firmware tasks. This product overview combines the key electrical limits, memory capacity, control resources, lifecycle status, and application constraints of the MC9S08SF4MTJ. It also identifies package and sourcing considerations for engineers evaluating the device for new compact motor-control platforms, legacy product maintenance, and board-level redesign work.

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MC9S08SH16CTG - 8-Bit 40MHz 16KB MCU 16-TSSOP | NXP
MC9S08SH16CTG

MC9S08SH16CTG - 8-Bit 40MHz 16KB MCU 16-TSSOP | NXP

The NXP Semiconductors MC9S08SH16CTG is an 8-bit HCS08 microcontroller with a 40 MHz CPU, 16 KB of Flash memory, and a 16-TSSOP package. It is designed for cost-sensitive embedded control applications operating in the 3.3 V and 5 V supply range. The device combines an integrated analog comparator, keyboard interrupt capability, flash program memory, and low-power operating modes in a compact surface-mount package. A microcontroller is a programmable semiconductor that integrates a CPU, memory, and peripherals into one device. The HCS08 CPU belongs to the 8-bit MCU hierarchy and uses the HC08 instruction set, allowing efficient control of digital inputs, outputs, timers, communications, and analog signals. The MC9S08SH16CTG is positioned as an entry-level S08SH-family controller for compact industrial, automotive, appliance, and instrumentation designs. The verified product data identifies a 40 MHz maximum clock frequency, 16 KB of Flash organized as 16K × 8, an 8-bit data-bus architecture, and a 16-TSSOP package. The MCU also supports up to 32 interrupt/reset sources according to the supplied technical description. Its integrated analog comparator and keyboard interrupt reduce the need for external circuitry in basic sensing and key-detection systems, while its flash memory supports firmware retention and field-updateable application code. The S08SH family is intended for applications in the 5 V range and combines conventional embedded-control functions with low-cost integration. A 40 MHz CPU provides processing headroom for state machines, communication protocols, timing tasks, and peripheral coordination. The 16 KB flash capacity is appropriate for compact control firmware where code size, deterministic behavior, and rapid deployment are more important than maximum software capacity. Typical uses include motor and relay control, appliance controllers, industrial interface modules, keyboard-equipped panels, low-cost instrumentation, and embedded automotive or industrial subsystems. For new 5 V designs, firmware and board validation should be completed carefully because the manufacturer product page identifies the part as End of Life. Designers should confirm availability, lifecycle status, and any approved successor before committing to a production release. The most important design considerations are supply-voltage compatibility, pin-level peripheral assignment, flash programming, clock configuration, decoupling, and validation of the analog comparator. Because the device is marked End of Life, sourcing should be treated as a lifecycle-managed activity rather than a routine new-design choice. This page consolidates verified distributor and manufacturer information, practical design notes, and lifecycle considerations; detailed electrical limits and pin functions must be checked against the manufacturer datasheet.

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MC9S08SH16CTJ - 8-bit MCU, 16KB Flash, 40MHz | NXP
MC9S08SH16CTJ

MC9S08SH16CTJ - 8-bit MCU, 16KB Flash, 40MHz | NXP

The NXP Semiconductors MC9S08SH16CTJ is an 8-bit S08-family microcontroller unit (MCU) with 16KB of flash program memory, 512B of RAM, and a maximum bus clock of 40 MHz, supplied in a 20-pin TSSOP package. It operates from a 2.7V to 5.5V supply across a -40C to +85C temperature range, making it suited to 5-volt industrial and automotive-adjacent designs. An 8-bit MCU is a single-chip computer whose CPU processes data 8 bits at a time. Within the embedded systems hierarchy, the S08 family sits under NXP's (formerly Freescale Semiconductor's) HC08/HCS08 lineage of CISC microcontrollers, which in turn belong to the broader class of microcontroller units - devices integrating a processor core, memory, and peripherals on one die. The S08SH series is positioned as a low-cost, low-pin-count option for classic 5V applications. Key features include the HCS08 core executing the HC08 instruction set plus the added BGND instruction, a 12-channel 10-bit ADC, and connectivity peripherals comprising I2C, LIN, SCI, and SPI. On-chip system protections include a low-voltage detector (LVD), power-on reset (POR), pulse-width modulation (PWM) capability, and a watchdog timer (WDT), with support for up to 32 interrupt/reset sources. The device provides 17 general-purpose I/O lines. Architecturally, the S08 core is an enhanced HC08 CPU with improved interrupt handling and background debug mode (BGND) support, allowing non-intrusive flash programming and debugging through NXP's background debug controller. Flash memory is in-circuit erasable and programmable, simplifying field updates. The 5V-tolerant operating range differentiates the SH family from many modern 3.3V-only MCUs, allowing direct interface with legacy 5V sensors and industrial signaling. Typical applications include small appliance control, automotive body accessories, motor and LED control nodes, LIN-bus slave modules, and 5V industrial sensor transmitters - anywhere a compact, low-pin-count, flash-based 8-bit controller with an integrated 10-bit ADC is required. For design, take advantage of the wide 2.7V to 5.5V supply range but verify ADC reference stability across supply variation; use the internal LVD and watchdog for unattended reliability, and observe proper decoupling on the 20-TSSOP supply pins. This page synthesizes distributor pricing, verified drop-in alternatives, and practical design guidance not found in the manufacturer datasheet alone.

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MC9S08SH16CTLR - 40MHz 16KB 8-Bit MCU | NXP | Automotive
MC9S08SH16CTLR

MC9S08SH16CTLR - 40MHz 16KB 8-Bit MCU | NXP | Automotive

The NXP Semiconductors MC9S08SH16CTLR is an 8-bit S08 CISC microcontroller rated up to 40 MHz, with 16 KB of flash memory, 1 KB of RAM, and 23 general-purpose I/O pins in a 28-pin TSSOP tape-and-reel package. It operates from a 2.7 V to 5.5 V supply range and targets compact embedded-control and automotive applications. A microcontroller is a programmable semiconductor that integrates a processor core, memory, digital I/O, analog conversion, communications peripherals, and debug support on one device. The MC9S08SH16CTLR belongs to the HCS08 family and its 8-bit CISC architecture provides straightforward embedded-control processing. The device supports up to 32 interrupt or reset sources, making it suitable for responsive event-driven systems. Key features include a 40-MHz HCS08 central processing unit, 16 KB of internal flash, 1 KB of RAM, and a 10-bit analog-to-digital converter. Available communication and control resources cited by the supplied data include SCI, SPI, and IIC interfaces. A 23-I/O count supports external sensors, indicators, actuators, and control signals, while the internal oscillator eliminates a mandatory external clock source. The MCU is used where moderate computation, memory, and serial connectivity are needed without a higher-cost processor. Its 2.7 V to 5.5 V supply range accommodates common embedded rails, and the 28-pin TSSOP package provides a board-compatible surface-mount footprint. Reported converter details vary among supplied search snippets, so channel count and conversion timing must be confirmed against the manufacturer datasheet before a safety- or timing-critical design is released. Typical uses include automotive body and control modules, compact sensor interfaces, small motor-control boards, industrial controls, and communication hubs. Its SCI, SPI, and IIC peripherals allow connection to transceivers, sensors, memory, and other controllers without requiring several external interface devices. Designers should preserve the 28-pin footprint, confirm every peripheral mapping against the datasheet, and include adequate decoupling and signal-integrity practices. The supplied data does not establish complete pin assignments, electrical limits, timing values, or automotive qualification status, so those items must not be inferred from generic family information. This page consolidates the supplied manufacturer and distributor results, separates verified facts from unresolved details, and adds procurement, comparison, and design guidance not presented as a single source in the manufacturer datasheet.

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MC9S08SH16CWLR - 8-Bit 40MHz 16KB Flash MCU | NXP
MC9S08SH16CWLR

MC9S08SH16CWLR - 8-Bit 40MHz 16KB Flash MCU | NXP

NXP Semiconductors MC9S08SH16CWLR is an 8-bit S08 microcontroller with a 40 MHz HCS08 core, 16KB of flash program memory, 1KB of RAM, and a 28-pin SOIC package. It supports 3.3 V and 5 V operation and is identified in the verified distributor data as an obsolete part. The S08 is an 8-bit CISC microcontroller family intended for embedded control applications where low cost, compact size, and integrated peripherals are important. This part combines a 40 MHz CPU core with flash memory, RAM, serial interfaces, timers, pulse-width modulation, watchdog and reset supervision, and a multichannel ADC. Its 23 I/O pins provide access to the integrated peripherals in a single package. Verified specifications identify a 40 MHz operating speed, 16KB (16K x 8) flash memory, 1K x 8 RAM, 23 I/O pins, and an internal oscillator. The device supports I2C, LINbus, SCI, and SPI connectivity according to the supplied component listing. Its 16-channel ADC provides 10-bit resolution, while the listed peripheral set includes low-voltage detection, power-on reset, PWM, and a watchdog timer. The 28-pin SOIC package is approximately 7.50 mm wide and 0.295 inch long according to the verified specification snippet. The listed operating voltage options are 3.3 V and 5 V. The MC9S08SH16CWLR is suitable for compact embedded systems, low-cost control products, sensor interfaces, actuator controllers, and serial-connected industrial equipment where an 8-bit architecture and integrated peripherals are sufficient. A key sourcing consideration is lifecycle status. The supplied PDF source lists the part as obsolete, while distributor pages provide product information and ordering links. Engineers should confirm availability, remaining supply, and any authorized-source restrictions before beginning a new design. A replacement should be verified for pinout, memory size, voltage range, peripheral compatibility, clock requirements, and software support. The most important design step for a redesign is to treat software migration as part of the replacement assessment. A device with the same package name may differ in flash capacity, peripheral mapping, interrupt behavior, or clock configuration. This page consolidates the verified source specifications, lifecycle information, package identity, sourcing limitations, and drop-in alternatives while distinguishing confirmed data from information that still requires engineering validation.

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MC9S08SH16MTJ - 8-bit MCU 16KB Flash 40MHz | NXP Semiconductors
MC9S08SH16MTJ

MC9S08SH16MTJ - 8-bit MCU 16KB Flash 40MHz | NXP Semiconductors

The NXP Semiconductors MC9S08SH16MTJ is an 8-bit S08-family microcontroller unit (MCU) with 16 KB of flash memory, a maximum CPU clock of 40 MHz, and a wide 2.7V to 5.5V supply range, housed in a 20-pin TSSOP package. It is positioned as a low-end, 5-volt-oriented option for cost-sensitive and automotive-grade embedded designs. An 8-bit microcontroller is a single-chip computer integrating a processor core, program memory, data memory, and peripherals on one die. Within the power-management and control hierarchy of embedded systems, MCUs such as the S08SH sit below 16/32-bit application processors and above discrete logic, handling sensing, timing, and actuation tasks in end products. The S08SH family is NXP's (formerly Freescale Semiconductor) entry-level series for 5V-range applications. Key features of the MC9S08SH16MTJ include an HCS08 CISC core executing the HC08 instruction set with an added BGND instruction, a 16-channel 10-bit ADC with 2.x mode conversion support, and support for up to 32 interrupt/reset sources. Single-wire background debug interfacing and an on-chip ICE debug module with two comparators and nine trigger modes simplify development without additional debug silicon. Technically, the device combines the S08 core with 16 KB (16K x 8) of on-chip flash program memory. The debug module includes an eight-deep FIFO for storing change-of-flow address and event-only data, while breakpoint capability permits single-breakpoint in-circuit debugging plus two additional breakpoints in the on-chip debug module. The automotive temperature grade supports operation from -40C to +125C. Typical applications include automotive body and comfort electronics, 5V industrial sensors and actuators, appliance control boards, and low-cost battery-monitoring nodes, where a wide 2.7V-5.5V supply range removes the need for a dedicated 3.3V regulator. Design consideration: this part is End-of-Life per the NXP product page, so new designs should favor the MC9S08SH32 or S9S08SG16 family members, and existing designs should verify last-time-buy schedules with distributors. This page synthesizes distributor pricing, drop-in alternative cross-references, and practical design notes not found in the manufacturer datasheet, with pricing freshness as of 2026-10-18.

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MC9S08SH16MTJR - 8-bit S08 MCU, 16KB Flash, 40MHz, 20-TSSOP | NXP
MC9S08SH16MTJR

MC9S08SH16MTJR - 8-bit S08 MCU, 16KB Flash, 40MHz, 20-TSSOP | NXP

The NXP MC9S08SH16MTJR is an 8-bit S08 CISC microcontroller with 16 KB of on-chip Flash memory, 1 KB of RAM, and a 40 MHz maximum CPU clock, housed in a 20-pin TSSOP package on tape-and-reel. It integrates a 16-channel 10-bit ADC, analog comparators, and a configurable peripheral set including PWM, LVD, POR, and WDT, with 17 GPIO-capable pins. The on-chip analog and serial peripherals (SCI, SPI, I2C, and LINbus) suit it to appliance, automotive body, and industrial control applications where 5V-tolerant I/O is needed. An 8-bit microcontroller (MCU) is a processor optimized for cost-sensitive embedded control tasks, integrating the CPU, non-volatile program memory, data RAM, and peripherals on one die. The S08 family is built on an enhanced 8-bit CISC core, sitting at the lowest tier of the embedded-control hierarchy: microcontroller -> embedded processor -> semiconductor device. Within NXP's broader portfolio, the S08SH series targets space-constrained, low-power, mixed-signal designs that benefit from a 5V-tolerant supply. Key features for designers include 16 KB Flash and 1 KB RAM for application code and data, 17 GPIO lines with interrupt capability, a 16-channel 10-bit ADC for analog sensing, and four communication peripherals (SCI, SPI, I2C, and LINbus) for inter-chip and automotive networks. A programmable timer/PWM block, hardware watchdog (WDT), and low-voltage detect (LVD) round out the embedded control peripherals. The 40 MHz bus and 20 MHz core performance per the NXP overview page, with 5V-tolerant I/O that simplifies interfaces to legacy 5V sensors. The MC9S08SH16MTJR uses NXP's S08 CISC core and an HCS08 instruction set, supports single-wire background debug mode (BDM) and on-chip in-circuit emulation, and operates across 2.7V to 5.5V supply. Programming is supported by the standard NXP/Freescale CodeWarrior and S08 toolchain via the BDM interface. The 20-pin TSSOP package provides a small footprint suitable for high-density PCB designs, while the wide supply range and internal clock options reduce BOM cost. Typical applications include automotive body electronics (LIN nodes, seat controllers, mirror modules), home appliances (washing machines, HVAC controls, induction cooktops), industrial sensors and small motor drivers, battery management accessories, and general-purpose 5V-tolerant logic replacement. The device is also commonly used in education and rapid-prototyping boards due to its accessible BDM and small pin count. When designing with this MCU, note that the 20-pin TSSOP package limits GPIO to 17 lines; plan pinout carefully and consider migrating to the 28-pin or 32-pin QFP variants if more I/O is needed. Plan Flash/RAM partitioning carefully because 1 KB of RAM restricts stack/data buffer depth for complex protocols. This page synthesizes NXP product page specifications, 4-distributor pricing snapshots, drop-in alternative cross-references, and practical design notes not collated in any single manufacturer document.

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