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MC9S08SH4CFK - 40MHz 8-Bit 4KB MCU | NXP | 24-QFN
MC9S08SH4CFK

MC9S08SH4CFK - 40MHz 8-Bit 4KB MCU | NXP | 24-QFN

NXP Semiconductors MC9S08SH4CFK is an 8-bit S08SH-family microcontroller with a 40 MHz maximum CPU frequency, 4 KB of Flash memory, and a compact 24-QFN exposed-pad package. It targets cost-sensitive embedded systems in the 5 V range and is identified by verified listings as an industrial-grade, no-lead device. The verified product information also identifies an 8-bit data bus, HCS08 CPU family, integrated timers, low power consumption, and a 10-bit, 12-channel ADC. What is an 8-bit microcontroller? An 8-bit microcontroller is a semiconductor that integrates a CPU, program memory, data memory, peripherals, and I/O into one device. Its MCU status places it in the embedded-control hierarchy: microcontroller → embedded controller → semiconductor. The S08 architecture provides a compact platform for sequential control, sensor reading, communication, and actuator logic where higher processing capacity is unnecessary. Key verified features include 4 KB of Flash program storage, a 40 MHz HCS08 processor, 8-bit bus width, support for as many as 32 interrupt or reset sources, integrated timers, and a 12-channel ADC with 10-bit resolution. One distributor source states a 2.7 V to 5.5 V supply range, while another describes the family as intended for 5 V applications. Supply limits must therefore be checked against the official datasheet before design release. The 24-QFN-EP package, identified as HVQCCN and measuring 4 mm by 4 mm in verified distributor records, supports compact PCB layouts but requires careful thermal-pad assembly and solder inspection. The exposed pad is electrically and thermally significant and cannot be treated as an unused lead. Programming, reset, clocking, analog grounding, and decoupling require layout review against the manufacturer documentation. Typical applications include low-cost industrial controllers, compact sensor nodes, timer-based modules, simple communications equipment, appliance controls, and automotive or 5 V embedded subsystems when the exact device qualification and electrical limits are confirmed. The 10-bit ADC supports basic analog measurement, while timers support periodic events and time-based control. The primary design tradeoff is limited 4 KB Flash capacity. Firmware should be compact, interrupt handlers efficient, and memory use reviewed before adding protocols or features. Confirm current lifecycle and sourcing status with NXP because the official product page is marked End of Life. This page combines verified lifecycle, package, memory, and distributor information with selection guidance and explicit data gaps.

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MC9S08SH4CSC - 40MHz 8-Bit 4KB Flash MCU | NXP | SOIC-8
MC9S08SH4CSC

MC9S08SH4CSC - 40MHz 8-Bit 4KB Flash MCU | NXP | SOIC-8

The NXP Semiconductors MC9S08SH4CSC is an 8-bit HCS08 S08 microcontroller with a 40 MHz maximum frequency, 4 KB of internal flash memory, 512 bytes of RAM, and an SOIC-8 package. It is positioned as a cost-sensitive embedded controller for compact 5 V designs that need deterministic control, integrated USB 2.0 connectivity, and a small PCB footprint. The verified manufacturer result identifies the device as an S08SH 8-bit MCU with 4 KB flash and 40 MHz operation, while distributor listings specify the 8-SOIC package. An S08 microcontroller is an embedded-processing device that combines a processor core, program memory, data memory, and peripherals on one semiconductor package. In the broader hierarchy, it is an 8-bit microcontroller, an embedded controller, and a semiconductor intended for control-oriented products. The MC9S08SH4CSC is suited to applications where simple firmware, peripheral integration, and compact board area are more valuable than a high-performance 32-bit architecture. The main verified features are 40 MHz maximum operating frequency, 4 KB internal flash, 512 B RAM, and integrated USB 2.0. The S08 family also provides an enhanced HCS08 CPU with support for up to 32 interrupt/reset sources. These figures make the device relevant for USB-connected peripherals, compact control modules, and cost-constrained embedded products. A separate third-party comparison also describes an enhanced HCS08 CPU with a 20 MHz bus, but the supplied search data does not establish that value as a formal MC9S08SH4CSC specification. Typical uses include low-cost USB dongles, simple human-interface-device controllers, compact motor or relay-control boards, instrumentation interfaces, and other 5 V embedded systems. The SOIC-8 package supports conventional surface-mount assembly and is easier to handle than a very fine-pitch package in low- or medium-volume production. Designers should verify the exact pin functions, USB electrical requirements, clock configuration, and programming workflow in the NXP datasheet before layout release. Because the supplied results contain inconsistent package references from third-party aggregators, the target should be treated as an SOIC-8 device based on the distributor and manufacturer listings, while uncertain electrical details remain marked for verification. This page consolidates the verified manufacturer and distributor information, separates confirmed specifications from unavailable parameters, and highlights sourcing and replacement limitations for an end-of-life low-cost MCU.

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MC9S08SH4CTG - 8-bit S08 MCU 4KB Flash 40MHz 16-TSSOP | NXP
MC9S08SH4CTG

MC9S08SH4CTG - 8-bit S08 MCU 4KB Flash 40MHz 16-TSSOP | NXP

The NXP MC9S08SH4CTG is a low-cost, high-performance 8-bit S08 microcontroller featuring a 40 MHz CPU, 4 KB flash, and a 16-pin TSSOP package. It belongs to the S08SH family, a new low-end option for 5-volt applications. An 8-bit microcontroller (MCU) is a small computer-on-a-chip that integrates an 8-bit CPU core, non-volatile program memory, working RAM, and peripherals such as timers, communication interfaces, and analog converters. Within the semiconductor hierarchy, MCUs sit under microcontrollers, then embedded processors, then logic/semiconductor ICs. The S08 family specifically uses an enhanced HCS08 instruction set with the BGND (background debug) instruction added for in-circuit debug. Key features include 4 KB flash, 256 B RAM, a 12-channel 10-bit ADC with 2.5 µs conversion time, an analog comparator, an internal temperature sensor, plus SCI, SPI, and I²C communication interfaces. The device supports up to 32 interrupt/reset sources and offers 13 GPIO pins. Operating voltage spans 2.7 V to 5.5 V, suiting 3.3 V and 5 V designs. Architecturally, the MC9S08SH4CTG uses a CISC HCS08 core with a 20 MHz internal bus, achieving 40 MHz CPU throughput, plus on-chip debug and a single-wire background debug mode. It is pin, tool, and software compatible with the S08SG family, easing code migration. Typical applications include low-end consumer appliances, white goods control boards, simple sensor nodes, industrial 5 V control logic, automotive body controllers (where an AEC-Q100 equivalent such as MC9S08SH4CFK is preferred), and battery-powered handheld devices. When designing with this MCU, budget for the internal bus at 20 MHz and verify the 16-pin TSSOP thermal envelope at sustained 40 MHz operation. For new designs consider migrating to the active S08SH4/8 variants in 20-pin TSSOP for additional GPIO. This page synthesizes distributor pricing, drop-in alternatives from the S08SH family, and practical design notes that complement the manufacturer datasheet for engineers evaluating the MC9S08SH4CTG.

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MC9S08SH4CTJ - 8-bit 40MHz HCS08 MCU 4KB Flash 20-TSSOP
MC9S08SH4CTJ

MC9S08SH4CTJ - 8-bit 40MHz HCS08 MCU 4KB Flash 20-TSSOP

The NXP MC9S08SH4CTJ is a low-cost, high-performance 8-bit microcontroller from the HCS08 family featuring a 40 MHz CPU core, 4 KB of on-chip Flash memory, and 256 B of RAM in a 20-pin TSSOP package. Operating from a 2.7 V to 5.5 V supply, it integrates a 12-channel 10-bit ADC with internal temperature sensor, multiple timers (MTIM, RTI, TPM), an SCI/UART, an SPI, an I2C, and an analog comparator. The S08 core supports the HC08 instruction set with the added BGND instruction and up to 32 interrupt sources, making it suitable for cost-sensitive industrial and consumer applications. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, Flash program memory, and peripherals onto one die. The HCS08 is NXP's (formerly Freescale's) enhanced 8-bit architecture, succeeding the classic HC08 by lowering active current per MHz and adding the BGND background-debug instruction. Within the broader semiconductor taxonomy, the MC9S08SH4CTJ sits at the bottom rung of the HCS08 SH family, occupying the same generation as the SH8 and SH16 siblings but with a smaller Flash footprint for budget-constrained designs. Key differentiating specifications include a 40 MHz bus frequency, 2.7 V-5.5 V wide supply range, an internal clock source with optional PLL-style prescaler behavior for power tuning, low-power STOP and WAIT modes with fast wake-up, and on-chip debug via a single-wire BDM interface. The 12-channel 10-bit ADC with automatic compare function and an internal temperature sensor enables mixed-signal sensing without external components, while the rich timer/PWM block supports motor and lighting control tasks. Typical applications include low-cost motor control (small BLDC and stepper drivers), HVAC sensor interfaces, white-goods and home-appliance user-interface boards, battery chargers, smart sensors, and small IoT edge nodes. The wide operating voltage and integrated analog reduce BOM cost; the 20-pin TSSOP footprint is friendly to compact PCBs that previously required 8-pin MCUs. When designing with this device, reserve sufficient PCB copper around the exposed pad for thermal dissipation and connect it to GND. Programming and debug are handled through NXP's BDM interface, so plan a 2x3 or 1x6 footprint even if you do not populate it during production. This page synthesizes distributor pricing, drop-in alternatives from the same SH family, and practical design notes not found in the standalone manufacturer datasheet.

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MC9S08SH4MFK - 8-bit HCS08 MCU 4KB Flash 40MHz QFN-24 | NXP
MC9S08SH4MFK

MC9S08SH4MFK - 8-bit HCS08 MCU 4KB Flash 40MHz QFN-24 | NXP

The NXP MC9S08SH4MFK is an 8-bit HCS08-family microcontroller with 4 KB Flash program memory, 256 B RAM, and a 40 MHz CPU core, housed in a 24-pin QFN-EP (4x4 mm) package with an exposed thermal pad. It integrates a 12-channel 10-bit ADC, up to 17 general-purpose I/O lines, and an internal oscillator. The HCS08 core adds the BGND instruction to the legacy HC08 instruction set for simplified background-debug operation. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and peripheral set targeted at cost-sensitive embedded control. Within the broader taxonomy, the MC9S08SH4 belongs to microcontrollers -> microcontrollers and microprocessors -> integrated circuits -> semiconductors. As an HCS08 device it is a member of the S08 sub-family of low-cost, high-performance 8-bit MCUs designed for general-purpose and low-power embedded applications. Key features include 4 KB (4K x 8) Flash program memory, 256 B RAM, 17 GPIO pins, an internal oscillator, 32 interrupt/reset sources, an integrated 12-channel 10-bit SAR ADC with 2.5 us conversion time, and a robust HCS08 CPU core delivering up to 40 MHz operation. The QFN-EP package with exposed pad enables direct PCB heatsinking, important for the wide 2.7 V to 5.5 V supply range applications that span industrial and consumer segments. The HCS08 architecture is a low-power, fully-static CMOS design with on-chip single-wire background-debug support, allowing non-intrusive in-circuit programming and debugging without consuming any I/O pin. Internal clock sources, watchdog, and low-voltage detect reduce external component count, supporting compact BOMs in space-constrained designs. Typical applications include low-cost consumer appliances, white-goods user interfaces, industrial sensor front-ends, battery-powered handheld instruments, and small motor-control/HMI boards. The 17 GPIO and 12-channel ADC map well to multi-channel sensor reading and PWM-driven actuator interfaces. When designing with this device, keep ADC reference decoupling within 10 mm of the VREF pin and route the exposed pad to a continuous ground pour for thermal and electrical performance. Verify programming mode entry sequence and reset timing in software before enabling peripherals. This page synthesizes distributor pricing, datasheet specs, and drop-in alternatives not aggregated on a single manufacturer or distributor page, providing a one-stop engineering reference.

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MC9S08SH4MPJ - 8-bit S08 MCU, 4KB Flash, 40MHz | NXP DIP-20
MC9S08SH4MPJ

MC9S08SH4MPJ - 8-bit S08 MCU, 4KB Flash, 40MHz | NXP DIP-20

The NXP MC9S08SH4MPJ is an 8-bit microcontroller from the S08SH family, featuring an enhanced HCS08 CPU core, 4KB of on-chip Flash, 256B of RAM, and a 40 MHz maximum bus frequency, all integrated into a 20-pin PDIP through-hole package. The part targets low-cost, low-end 5V applications and offers a broad peripheral mix: a 12-channel 10-bit ADC with 2.5 µs conversion time and an internal temperature sensor, plus SCI, SPI, and I²C communication interfaces. Operating voltage spans 2.7V to 5.5V with automotive temperature grade support. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory, and peripherals such as timers, ADC, and communication blocks. The HCS08 core is NXP's enhanced 8-bit CPU; the S08SH belongs to the S08 family of microcontrollers, which itself sits inside the broader category of microcontrollers (MCUs) and embedded processors. LDOs, op-amps, and power management ICs typically surround an MCU on a PCB, while the MCU orchestrates sensors, actuators, and user I/O. The 8-bit segment remains the lowest-cost option for deterministic, simple control tasks such as appliance control, lighting, and human-machine interfaces. Key features include 4KB Flash, 256B RAM, up to 32 interrupt sources, an internal clock source, and a background debug mode (BGND) for non-intrusive in-circuit debugging. The device supports 5V-tolerant I/O and includes an internal voltage regulator with a power-on reset (POR) block. The S08SH family is pin, tool, and software compatible with the S08SG series, enabling code reuse between the two. The ADC's 2.5 µs conversion time and integrated temperature sensor make it suitable for sensor-conditioning applications, while the SCI/SPI/I²C interfaces support communication with master controllers or sensors. Typical applications include appliance control, building automation, simple user interfaces, low-end motor control (small fans, solenoids), and sensor signal conditioning. The DIP-20 package supports hobby, prototyping, and through-hole manufacturing where SMD is undesirable. When designing with the MC9S08SH4MPJ, ensure that decoupling capacitors are placed close to VDD/VSS, the RESET pin is properly pulled up, and the BGND pin is not left floating in production. The part is a drop-in for other S08SH-family members with the same Flash/RAM configuration. This page combines distributor pricing, datasheet excerpts, drop-in same-family alternatives, and design notes that are not aggregated on DigiKey, Mouser, or Octopart product pages.

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MC9S08SH4MSC - 8-Bit 40MHz S08 MCU, 4KB Flash, 8-SOIC | NXP
MC9S08SH4MSC

MC9S08SH4MSC - 8-Bit 40MHz S08 MCU, 4KB Flash, 8-SOIC | NXP

NXP Semiconductors MC9S08SH4MSC is an 8-bit S08 CISC microcontroller with a maximum operating frequency of 40 MHz, 4 KB of Flash program memory, and 512 bytes of RAM in an 8-pin SOIC package. It is designed for cost-sensitive embedded applications requiring a compact controller with integrated flash memory, serial communication capability, and power-management features. An S08 microcontroller is an 8-bit microcontroller based on the HCS08 family architecture. These devices combine a compact CPU core, embedded Flash and RAM, timers, serial interfaces, and basic input/output resources in a single integrated circuit. The MC9S08SH4MSC is appropriate when a control system needs deterministic embedded processing without the cost or complexity of a larger 16-bit or 32-bit microcontroller. Key features include the 40 MHz maximum clock rate, 4 KB Flash memory, 512-byte RAM, 3.3 V and 5 V operation, and an 8-pin SOIC package. The integrated Flash supports firmware storage without an external memory device, while the high-speed serial interface can be used for communication with sensors, actuators, display modules, or external controllers. The S08SH family is intended for small embedded systems such as appliance controls, simple motor-control boards, keypads, sensor nodes, and industrial interface modules. Its small package helps reduce board area when the application requires only a limited number of I/O connections. The 8-bit architecture and compact memory footprint are also appropriate for straightforward control loops and cost-sensitive production environments. When designing a board around MC9S08SH4MSC, verify the device pin assignments, oscillator requirements, programming interface, and decoupling recommendations in the manufacturer datasheet. Because the product is listed as end of life by NXP, engineers should confirm supply status and any approved replacement before committing to new production. For current availability, pricing, and lifecycle planning, use the Request a Quote form on this page.

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MC9S08SH4MTG - 8-bit MCU, 4KB Flash, 40MHz, 16-TSSOP | NXP
MC9S08SH4MTG

MC9S08SH4MTG - 8-bit MCU, 4KB Flash, 40MHz, 16-TSSOP | NXP

The NXP MC9S08SH4MTG is an 8-bit HCS08 microcontroller with 4KB flash memory, 512B RAM, and a 40MHz HCS08 CPU core, housed in a 16-pin TSSOP package. It belongs to the S08SH family, a low-end option purpose-built for 5V applications in cost-sensitive embedded designs. An 8-bit microcontroller (MCU) integrates a processor core, program memory, data RAM, and peripherals such as timers, ADCs, and serial interfaces on a single chip. Within the embedded systems hierarchy, it sits below 32-bit MCUs in complexity and cost, making it the workhorse for simple control tasks, appliance logic, and board-level supervision where a full application processor is unnecessary. Key features of the MC9S08SH4MTG include the 40MHz HCS08 CPU executing the HC08 instruction set with an added BGND instruction, 4KB of on-chip flash program memory with in-circuit reprogrammability, and support for up to 32 interrupt/reset sources. The S08SH family is pin, tool, and software compatible with the S08SG family, giving designers migration headroom within the same footprint. Supply operation spans the 3.3V/5V range with an operating voltage window of approximately 2.7V to 5.5V. Technical depth: the device integrates an analog comparator and a 12-channel, 10-bit ADC with a 2.5 microsecond conversion time, an automatic compare function, and an on-chip temperature sensor. The built-in clock generator removes the need for an external crystal in many designs, reducing BOM cost. Debugging is handled through the single-wire background debug interface (BGND). Typical applications include 5V industrial sensing nodes leveraging the 10-bit ADC and temperature sensor, low-cost appliance and consumer appliance control, and system supervision or auxiliary control in larger boards. The 16-TSSOP package with gull-wing terminals suits compact, hand-solderable and reflowable designs. Design consideration: note that NXP lists this part as NRND (Not Recommended for New Designs), so new projects should evaluate the compatible S08SG successors or newer Kinetis/LPC parts while legacy production can continue sourcing existing stock. This page synthesizes distributor pricing, drop-in alternatives, lifecycle status, and practical design notes not found in the manufacturer datasheet.

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MC9S08SH4MTJ - 8-bit S08 MCU 4KB Flash 40MHz | NXP | 20-TSSOP
MC9S08SH4MTJ

MC9S08SH4MTJ - 8-bit S08 MCU 4KB Flash 40MHz | NXP | 20-TSSOP

The NXP MC9S08SH4MTJ is an 8-bit S08 microcontroller with 4KB Flash, 40MHz CPU, and 20-pin TSSOP package. It belongs to the S08SH family of low-cost, high-performance HCS08 microcontrollers targeted at 5V applications. A microcontroller (MCU) is a single-chip computer containing a CPU, memory (Flash/RAM), and programmable peripherals. The S08 architecture is a CISC (Complex Instruction Set Computer) core descended from the HC08 family, designed for low power consumption and deterministic interrupt response in cost-sensitive embedded applications. The S08SH family sits within the broader NXP 8-bit microcontroller portfolio, providing a migration path from legacy HC08 designs while adding modern peripherals. Key features include 40MHz maximum bus clock (20MHz internal bus), 4KB Flash program memory, 256B RAM, and an integrated 10-bit ADC with up to 12 channels. Communication peripherals include one SCI (UART) module, one SPI module, and one I2C module. The device also integrates an analog comparator, a temperature sensor, and a 6-channel 16-bit timer. An integrated voltage regulator supports 2.7V to 5.5V operation, allowing direct connection to 5V systems. The S08SH architecture uses a von Neumann bus with a 16-bit internal address space and 8-bit data path. The CPU executes the HC08 instruction set with the added BGND instruction for background debug mode (BDM), enabling in-circuit programming and real-time debug via a single-wire interface. The on-chip clock generator can operate from an internal 32kHz or 8MHz/16MHz/20MHz trimmed reference, reducing external component count. Typical applications include low-cost consumer appliances, battery chargers, white goods control boards, automotive body electronics (non-safety), HVAC thermostats, and industrial sensor interfaces. The wide 2.7V-5.5V supply range and integrated peripherals minimize external component count in space-constrained designs. Design consideration: The TSSOP-20 package has limited thermal dissipation, so power-constrained applications should rely on the device's low-power wait and stop modes rather than sustained high-frequency operation. The MC9S08SH4MTJ is pin, tool, and software compatible with the larger Flash S08SH family members (SH8, SH16), enabling code reuse across the family. This page synthesizes distributor pricing, parametric comparison with S08SH family variants, and practical design notes not found in the manufacturer datasheet alone.

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MC9S08SH8CFK - 8-Bit 40MHz S08SH MCU, 8KB Flash, 24-QFN | NXP
MC9S08SH8CFK

MC9S08SH8CFK - 8-Bit 40MHz S08SH MCU, 8KB Flash, 24-QFN | NXP

The NXP Semiconductors MC9S08SH8CFK is an 8-bit HCS08 S08SH family microcontroller with a 40 MHz CPU, 8 KB of embedded Flash program memory and a 24-QFN (4x4 mm) package with an exposed thermal pad. It targets cost-sensitive 5-volt-range designs and belongs to the low-end S08 family that is pin, tool and software compatible with the S08SG series. An 8-bit MCU (microcontroller unit) is a single integrated circuit containing a CPU core, program memory, data memory and peripherals such as analog converters and serial interfaces. The MC9S08SH8CFK belongs to the HCS08 family, whose enhanced HCS08 core uses the HC08 instruction set plus a BGND background-debug instruction and supports up to 32 interrupt and reset sources, giving it more headroom than a minimal 8051-class part. Key features include a 40 MHz maximum CPU frequency, an on-chip 12-channel 10-bit ADC with a 2.5 microsecond conversion time, an automatic compare function and an integrated temperature sensor. Serial connectivity includes SCI, SPI and I2C interfaces, so the part can host sensors, displays and transceivers without external interface expanders. The device is fabricated on a 0.25 micron process and is qualified for the 5-volt operating class typical of cost-driven consumer and industrial control products. The 24-pin QFN-EP (4x4 mm) footprint keeps the board area small and exposes a pad for improved thermal performance, which matters because the core runs continuously. Unlike larger 8-bit devices, this part keeps pin count and cost low while retaining a fast clock for time-critical control loops, timer-driven commutation or simple sensor conditioning. Typical applications include small motor and fan controllers, thermostat and HVAC front panels, appliance control boards, LED driver control logic, battery-powered sensor nodes using the low-power modes, and simple serial-to-digital acquisition nodes where a 10-bit ADC is sufficient. When designing around the MC9S08SH8CFK, confirm the supply voltage range and flash endurance requirements in the manufacturer datasheet before committing firmware, and keep the exposed pad soldered with a thermal via array so the 40 MHz core does not throttle in enclosed enclosures. This page consolidates the manufacturer product information, package and pin-count details, drop-in alternatives and practical design guidance for engineers evaluating a 5-volt 8-bit control node, adding engineering context that the raw datasheet does not provide.

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MC9S08SH8CPJ - 8-Bit 40MHz MCU | NXP | Embedded Control
MC9S08SH8CPJ

MC9S08SH8CPJ - 8-Bit 40MHz MCU | NXP | Embedded Control

NXP Semiconductors MC9S08SH8CPJ is an 8-bit HCS08 microcontroller with an S08 core, 8KB of Flash program memory, a 40MHz maximum operating frequency, and a 20-pin DIP package. It is designed for cost-sensitive embedded-control applications requiring integrated flash memory, serial communications, timers, and keypad or interrupt support. An HCS08 microcontroller is an 8-bit CISC processor family intended for embedded control rather than high-performance computing. The S08 core combines compact instruction handling with dedicated peripherals for timers, serial communication, analog measurement, and system supervision. This places the device in the broader hierarchy of microcontroller, embedded processor, and semiconductor categories, making it suitable for automotive, industrial, and consumer-control designs. The MC9S08SH8CPJ provides 8KB of Flash memory, 17 I/O pins according to the retrieved distributor specifications, a 40MHz operating speed, and connectivity including I2C, LIN, SCI, and SPI interfaces. The verified data also identifies a 4-channel timer, KBI functionality, a 12-bit-resolution ADC with 12 channels, a temperature sensor function, and support for up to 32 interrupt or reset sources. These peripherals reduce the need for external components in simple control systems. The device is specified for operation from 3.3V or 5V, making it suitable for legacy 5V industrial equipment as well as mixed-voltage embedded systems. Its 20-DIP package is easy to prototype and service, although the through-hole format is larger than modern surface-mount packages. The operating-temperature data supplied by the verified distributor listing is -40°C to 85°C ambient temperature. Typical applications include automotive body-control modules, industrial keypad interfaces, motor or relay controllers, communication equipment, and compact consumer-control boards. Because the part is listed by NXP as end of life, engineers should confirm availability, last-time-buy status, and firmware-tool support before starting a new production design. Existing designs can use the established S08 toolchain and the same package footprint when sourcing a like-for-like alternative. For a new design, first verify the current lifecycle position and pin-level compatibility of any replacement. The S08 family's peripheral mapping and programming model may differ between family members even when the clock speed and memory size appear similar. This page combines verified manufacturer and distributor information with lifecycle guidance, comparison context, and practical sourcing cautions for engineers evaluating an MC9S08SH8CPJ-based control board.

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MC9S08SH8CSC - 40MHz 8-Bit MCU, 8KB Flash | NXP
MC9S08SH8CSC

MC9S08SH8CSC - 40MHz 8-Bit MCU, 8KB Flash | NXP

The NXP Semiconductors MC9S08SH8CSC is an 8-bit HCS08 microcontroller rated up to 40 MHz, with 8 KB of flash memory and 512 bytes of RAM, supplied in an 8-pin SOIC package. It supports SCI, SPI, and I2C interfaces for space-constrained embedded systems. According to the verified distributor results, the device is associated with the S08SH family and is intended for applications in the 5 V range. The product page identifies the family as a low-cost 8-bit platform for compact control and communication designs. An MCU is an embedded semiconductor that integrates a CPU, memory, peripherals, and I/O into one programmable device. The MC9S08SH8CSC belongs to the HCS08 family of 8-bit microcontrollers, commonly used for appliance controls, small motor systems, sensor interfaces, and simple industrial equipment. Its 40 MHz CPU performance provides a practical operating point for control loops, serial communication, and peripheral-driven products while retaining the simplicity of an 8-bit architecture. The verified information identifies 8 KB of internal flash, 512 B of internal RAM, SCI, SPI, and I2C interfaces, and an 8-bit MCU classification. Search results also identify an analog comparator and 10-bit A/D converter functionality in related S08SH devices, but the exact channel count and package-specific details for every variant require confirmation from the manufacturer datasheet. The NXP product page provides the authoritative source for ordering, lifecycle, and documentation information. Typical applications include low-cost appliance controllers, compact sensor nodes, communication interfaces, and small embedded control platforms. The 8-pin SOIC package is useful when a design needs a modest pin count and through-hole assembly compatibility. Because the available verified data does not include complete electrical limits, pin-level descriptions, ADC timing, or programming-tool details, those values are intentionally marked for data completion rather than inferred. Designers should confirm the exact pinout, power requirements, peripheral multiplexing, and development ecosystem before layout release. The MCU should be programmed and validated for the target voltage range and communication peripherals. For production designs, use the NXP product page and its linked datasheet to verify current lifecycle status, recommended operating conditions, and package-specific tolerances. This page consolidates verified NXP and distributor product information, current lifecycle context, and engineering-oriented selection guidance. It does not invent missing electrical values or substitute unverified packages; missing parameters are explicitly identified for datasheet completion.

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MC9S08SH8CTG - 8-Bit S08 MCU, 8KB Flash, 40MHz | NXP
MC9S08SH8CTG

MC9S08SH8CTG - 8-Bit S08 MCU, 8KB Flash, 40MHz | NXP

The NXP MC9S08SH8CTG is an 8-bit S08 microcontroller built on the enhanced HCS08 CPU core, delivering 40 MHz maximum bus frequency with 8 KB on-chip Flash and 512 B RAM in a 16-pin TSSOP package. The S08 core retains the classic HC08 instruction set while adding BGND for background debug, and the device operates across 2.7 V to 5.5 V for 5 V-tolerant cost-sensitive embedded designs. It integrates a 10-bit ADC, analog comparator, PWM, SCI, I²C, SPI, and LIN-bus-capable communication peripherals for low-end automotive and industrial nodes. An 8-bit microcontroller (MCU) is an integrated microprocessor core, program memory, data memory, and I/O peripherals on a single die. The HCS08 family is NXP's (formerly Freescale) low-end 8-bit MCU lineup, sitting below the 16-bit S12 and 32-bit ColdFire/Kinetis families. Within the MCU taxonomy, MC9S08SH8CTG belongs to: microcontroller -> 8-bit MCU -> HCS08 family -> S08SH sub-family -> power management ICs and analog mixed-signal ICs are separate. The S08SH sub-family is targeted at 5 V applications where higher noise immunity is required over 3.3 V-only MCUs, and it shares a common peripheral set with the broader S08 platform for code portability. Key features include 8 KB Flash program memory with security, 512 B RAM, 13 GPIO pins, an 8-channel 10-bit ADC, and on-chip voltage regulator with internal POR and LVD. The device supports up to 32 interrupt/reset sources, BGND instruction for non-intrusive background debug, and offers low-power run and wait modes. The 16-pin TSSOP footprint makes it suitable for compact designs while preserving sufficient I/O for cost-sensitive embedded nodes. The MC9S08SH8CTG integrates a 20 MHz-bus HCS08 CPU with CISC architecture, achieving 40 MHz effective system clock through an internal bus multiplier. The 0.25 µm process technology (per legacy Freescale nomenclature) yields low quiescent current and high 5 V noise tolerance, making it ideal for body electronics, appliance controls, and small motor nodes. Typical applications include low-end automotive body control, LIN slave nodes, HVAC control, small appliance controllers, white goods, sensor signal conditioning, and battery-powered consumer devices. The on-chip 10-bit ADC and analog comparator suit sensor interfaces, while the SCI/SPI/I²C/LIN peripherals enable networked low-speed communication. When designing with this part, mind the 16-pin TSSOP package's modest 13 I/O budget. Plan pin allocation carefully between ADC inputs, PWM outputs, and communication interfaces, and use the internal voltage regulator mode to power down unused peripherals via the SOPT1 register. This page synthesizes distributor pricing, lifecycle status (currently NRND per NXP), drop-in same-family alternatives, and practical design notes not consolidated in the manufacturer datasheet.

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MC9S08SH8CTJ - 8-Bit 40MHz 8KB Flash MCU | NXP | S08
MC9S08SH8CTJ

MC9S08SH8CTJ - 8-Bit 40MHz 8KB Flash MCU | NXP | S08

The NXP MC9S08SH8CTJ is an 8-bit HCS08 microcontroller with 8KB flash memory, 0.512KB RAM, and a 40MHz HCS08 CPU, housed in a 20-pin TSSOP package. An 8-bit microcontroller (MCU) is a single integrated circuit that combines a processor core, memory, and peripherals such as ADCs, timers, and communication interfaces on one die. MCUs sit at the lowest level of the embedded computing hierarchy - from microcontroller to embedded processor to application processor - and are the workhorses of cost-sensitive control tasks in appliances, automotive body electronics, and industrial sensors. The S08 (HCS08) family from NXP (formerly Freescale) extends the HC08 instruction set with a BGND background-debug instruction and supports up to 32 interrupt/reset sources. Key features of the MC9S08SH8CTJ include the enhanced HCS08 CPU core (20MHz internal bus frequency, 40MHz CPU operation), 8KB of in-circuit-programmable flash, 512 bytes of RAM, a 12-channel 10-bit ADC with 2.5us conversion time and automatic compare function, and an integrated analog comparator. The device operates from 3.3V or 5V supplies, making it a natural fit for 5-volt-range applications where many modern MCUs require level shifting. Architecturally, the S08SH family is positioned as a low-end option within the HCS08 portfolio, retaining the low-cost, high-performance character of the original Freescale HC08/HCS08 line while adding flash-based reprogrammability and low-power wait/stop modes. Development uses the standard NXP CodeWarrior toolchain and the BDM (background debug mode) interface enabled by the BGND instruction. Typical applications include small appliance control, automotive body and convenience modules, battery chargers, sensor interfaces, and motor control of small fans and pumps, where the 10-bit ADC and analog comparator reduce external component count. Design consideration: the part is marked NRND (Not Recommended for New Designs) on the NXP product page, so new designs should evaluate the S08SG/S08P successors, while the 20-TSSOP footprint simplifies migration within the family. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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MC9S08SH8CWJ - 8-bit 40MHz 8KB Flash MCU | NXP
MC9S08SH8CWJ

MC9S08SH8CWJ - 8-bit 40MHz 8KB Flash MCU | NXP

NXP Semiconductors MC9S08SH8CWJ is an 8-bit S08SH-family microcontroller operating at up to 40MHz, with 8KB of flash memory and a 20-pin SOIC package designed for low-cost, 5V embedded control applications. It combines an enhanced HCS08 processor core with serial communications, SPI, I2C, analog-to-digital conversion, and comparator functionality in one compact device. An 8-bit microcontroller is a compact embedded processor intended for controlling sensors, actuators, communication interfaces, and simple logic. The MC9S08SH8CWJ belongs to the S08SH family within the broader HCS08 low-cost 8-bit MCU portfolio. Its 5V operating focus makes it relevant to industrial controls, appliance interfaces, embedded measurement systems, and legacy equipment that benefits from an economical controller with multiple on-chip peripherals. The principal device characteristics are a 40MHz maximum clock, 8KB of embedded flash program memory, an 8-bit architecture, and a 20-pin SOIC package. The NXP product page identifies SCI, SPI, I2C, ADC, and analog comparator resources in the S08SH family. This integration can reduce external component count by placing communication, sensing, and basic comparison functions directly beside the processor core. The S08 family emphasizes code density and a compact instruction set for cost-sensitive embedded products. NXP states that the S08SH family is pin, tool, and software compatible with S08SG, giving designers access to a broader software and tooling environment. That compatibility supports firmware portability and simplifies transitions within the S08 ecosystem, although every migration still requires verification of peripheral availability, memory limits, timing, and board-level constraints. Typical MC9S08SH8CWJ applications include small industrial control panels, motor or relay supervisory circuits, temperature-measurement modules, serial-interface adapters, and compact 5V consumer appliances. The on-chip serial interfaces support sensors and peripheral ICs, while the ADC and comparator are useful when a design requires simple analog sensing rather than a high-resolution external converter. PCB design should preserve the package pin assignments, provide proper 5V supply decoupling, and route sensitive analog inputs away from fast switching nodes. Firmware should be tested for interrupt timing, ADC sampling behavior, and communication timing because the 40MHz CPU clock does not guarantee that every peripheral can operate at that rate. For obsolete-product risk reduction, request lifecycle and sourcing options through the Request a Quote form. This product page combines the confirmed S08SH electrical and packaging details with practical placement, firmware, and sourcing guidance. It also distinguishes verified drop-in replacements from generic cross-reference candidates, helping engineers evaluate board reuse without confusing merely similar microcontrollers with true pin-compatible alternatives.

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MC9S08SH8MFK - HCS08 8-bit MCU, 8KB Flash, QFN-24 | NXP
MC9S08SH8MFK

MC9S08SH8MFK - HCS08 8-bit MCU, 8KB Flash, QFN-24 | NXP

The NXP Semiconductors MC9S08SH8MFK is a low-cost, high-performance 8-bit microcontroller (MCU) based on the enhanced HCS08 core, offering 8 KB of flash memory and housed in a 24-pin QFN (HVQCCN, package suffix MFK) surface-mount package rated for automotive-grade temperature operation from -40C to +125C. An 8-bit microcontroller is a single-chip computer that integrates a processor core, program flash, RAM, and peripheral modules such as timers, serial interfaces, and analog converters on one die. Within the semiconductor hierarchy it sits under the microcontroller family, itself a branch of embedded processors, and is widely used where cost, low pin count, and reliability matter more than raw processing power. Key features of the MC9S08SH8 family include the enhanced HCS08 CPU core, on-chip flash memory with in-circuit programming, low-voltage detection (LVD) for supply monitoring, and serial communication peripherals including SPI, as confirmed by distributor listings for this part. The compact 24-terminal no-lead QFN package saves board space while the exposed die-attach pad improves thermal and electrical performance. The HCS08 architecture executes efficient 8-bit code with a rich instruction set and background debugging via a single-wire BDM interface, simplifying development without costly emulators. The LVD module protects against brown-out conditions, and internal oscillator options reduce external component count. Typical applications include automotive body electronics, small motor control, sensor interfacing, battery chargers, and industrial control nodes where an SPI-linked MCU in a small footprint is required. A key design consideration is flash memory headroom: at 8 KB, firmware size should be planned carefully, and larger family members (SH16/SH32) provide upgrade paths in the same package family. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet.

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MC9S08SH8MSC - 8-Bit HCS08 MCU 8KB Flash 40MHz SOIC-8 | NXP
MC9S08SH8MSC

MC9S08SH8MSC - 8-Bit HCS08 MCU 8KB Flash 40MHz SOIC-8 | NXP

The NXP MC9S08SH8MSC is an 8-bit HCS08 CISC microcontroller featuring 8KB of Flash memory, an S08 core, and a maximum operating frequency of 40 MHz, housed in an 8-pin SOIC package. It supports operating voltages from 2.7V to 5.5V, making it well suited for 3.3V and 5V embedded designs. An 8-bit microcontroller (MCU) is a compact, single-chip computer that integrates a CPU, memory, and peripheral interfaces onto a single silicon die. Within the broader taxonomy, the MC9S08SH8MSC belongs to the HCS08 family, itself part of NXP's S08 line of 8-bit microcontrollers, which sit under the larger category of microcontrollers and embedded processors in the semiconductor hierarchy. The S08 core uses a CISC (Complex Instruction Set Computer) architecture with background debug mode (BGND), allowing in-circuit debugging without invasive probing. Key features of the MC9S08SH8MSC include a 12-channel, 10-bit ADC with 2.5 microsecond conversion time and automatic compare function, multiple communication peripherals including I2C, LIN, SCI, and SPI, an on-chip analog comparator, and an integrated temperature sensor. The device supports up to 32 interrupt sources and includes an integrated clock source to reduce BOM cost. The S08SH family shares pin-, tool-, and software-compatibility with the S08SG family, providing design flexibility between variants of different Flash densities. The 8-pin SOIC package enables compact PCB layouts for space-constrained applications, while the wide 2.7V to 5.5V supply range supports battery and line-powered designs. Typical applications for the MC9S08SH8MSC include automotive body electronics such as seat controllers and lighting modules, low-cost sensor interfaces, small home appliances, LIN nodes in vehicle networks, and consumer remote controls. The integrated temperature sensor and ADC make it well-suited for analog signal conditioning. When designing with this part, ensure that the supply voltage stays within the 2.7V to 5.5V range and that decoupling capacitors are placed close to the VDD pin. The HCS08 toolchain (CodeWarrior and Processor Expert) provides firmware development support, while the on-chip background debug mode allows low-cost in-circuit programming and debugging. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes drawn from NXP's product information and the S08SH datasheet, providing context not found in the manufacturer datasheet alone.

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MC9S08SH8MTG - 8-bit S08 MCU, 8KB Flash, 40MHz | NXP | TSSOP-16 (Tape & Reel)
MC9S08SH8MTG

MC9S08SH8MTG - 8-bit S08 MCU, 8KB Flash, 40MHz | NXP | TSSOP-16 (Tape & Reel)

The NXP Semiconductors MC9S08SH8MTG is an 8-bit S08 microcontroller from the S08SH family with 8KB of Flash program memory, 512 bytes of RAM, and a 40MHz HCS08 CPU core, housed in a 16-pin TSSOP package on tape-and-reel. It features an integrated 12-channel 10-bit ADC, multiple serial interfaces (I2C, SCI, SPI), and LINbus connectivity, targeting cost-sensitive 5V embedded applications. What is an 8-bit microcontroller? An 8-bit MCU is a single-chip computer that processes data in 8-bit chunks and integrates a CPU core, non-volatile program memory (Flash), working memory (RAM), and configurable peripherals on one die. In the broader hierarchy, the S08 family belongs to Freescale/NXP's HCS08 line of low-power, low-pin-count microcontrollers, sitting below 32-bit ARM Cortex-M parts but above legacy HC08/HC05 families in capability and tool-chain maturity. Key specifications include 8KB (8K x 8) Flash, 512 x 8 RAM, 40MHz maximum bus frequency, 13 GPIO pins, and an operating voltage range from 2.7V to 5.5V. On-chip peripherals include LVD (Low-Voltage Detect), POR (Power-On Reset), PWM, a watchdog timer, an analog comparator, and a 12-channel 10-bit ADC with 2.5 µs conversion time and a built-in temperature sensor. The HCS08 core executes the HC08 instruction set with an added BGND instruction for background debug mode, supporting up to 32 interrupt/reset sources and providing backward code compatibility with legacy HC08 designs. The architecture pairs a CISC-style register-rich CPU with modern peripherals such as the ACMP module and an SCI for asynchronous serial links. Typical applications include automotive body controllers (LIN slaves), low-cost sensor interfaces, simple motor control loops (small DC fans, pumps), LED drivers, and white-goods control boards. Its 5V tolerance makes it a fit for harsh industrial environments where 3.3V-only parts would require level shifters. When designing with this MCU, route the decoupling capacitor (100nF plus 4.7µF bulk) within 5mm of the VDD pin and provide a clean reset circuit. Programming is supported via the standard NXP BDM interface - no SWD - so ensure the BKGD pin is accessible for in-circuit debugging. This page synthesizes distributor pricing, same-family drop-in alternatives, and design notes that go beyond the manufacturer datasheet to help engineers select, source, and prototype with the MC9S08SH8MTG quickly.

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MC9S08SH8MTGR - 8-bit S08 MCU, 8KB Flash, 40MHz | NXP | TSSOP-16
MC9S08SH8MTGR

MC9S08SH8MTGR - 8-bit S08 MCU, 8KB Flash, 40MHz | NXP | TSSOP-16

The NXP Semiconductors MC9S08SH8MTGR is an 8-bit S08 microcontroller from the S08SH family with 8KB of Flash program memory, 512 bytes of RAM, and a 40MHz HCS08 CPU core, housed in a 16-pin TSSOP package on tape-and-reel. It features an integrated 12-channel 10-bit ADC, multiple serial interfaces (I2C, SCI, SPI), and LINbus connectivity, targeting cost-sensitive 5V embedded applications. What is an 8-bit microcontroller? An 8-bit MCU is a single-chip computer that processes data in 8-bit chunks and integrates a CPU core, non-volatile program memory (Flash), working memory (RAM), and configurable peripherals on one die. In the broader hierarchy, the S08 family belongs to Freescale/NXP's HCS08 line of low-power, low-pin-count microcontrollers, sitting below 32-bit ARM Cortex-M parts but above legacy HC08/HC05 families in capability and tool-chain maturity. Key specifications include 8KB (8K x 8) Flash, 512 x 8 RAM, 40MHz maximum bus frequency, 13 GPIO pins, and an operating voltage range from 2.7V to 5.5V. On-chip peripherals include LVD (Low-Voltage Detect), POR (Power-On Reset), PWM, a watchdog timer, an analog comparator, and a 12-channel 10-bit ADC with 2.5 µs conversion time and a built-in temperature sensor. The HCS08 core executes the HC08 instruction set with an added BGND instruction for background debug mode, supporting up to 32 interrupt/reset sources and providing backward code compatibility with legacy HC08 designs. The architecture pairs a CISC-style register-rich CPU with modern peripherals such as the ACMP module and an SCI for asynchronous serial links. Typical applications include automotive body controllers (LIN slaves), low-cost sensor interfaces, simple motor control loops (small DC fans, pumps), LED drivers, and white-goods control boards. Its 5V tolerance makes it a fit for harsh industrial environments where 3.3V-only parts would require level shifters. When designing with this MCU, route the decoupling capacitor (100nF plus 4.7µF bulk) within 5mm of the VDD pin and provide a clean reset circuit. Programming is supported via the standard NXP BDM interface - no SWD - so ensure the BKGD pin is accessible for in-circuit debugging. This page synthesizes distributor pricing, same-family drop-in alternatives, and design notes that go beyond the manufacturer datasheet to help engineers select, source, and prototype with the MC9S08SH8MTGR quickly.

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MC9S08SH8MTJ - 8-bit MCU 8KB Flash 40MHz TSSOP-20 | NXP
MC9S08SH8MTJ

MC9S08SH8MTJ - 8-bit MCU 8KB Flash 40MHz TSSOP-20 | NXP

The NXP Semiconductors MC9S08SH8MTJ is an 8-bit HCS08 microcontroller with 8KB Flash memory, 40MHz CPU speed, and 2.7V to 5.5V operating voltage, housed in a 20-pin TSSOP package. It integrates a 12-channel 10-bit ADC, an analog comparator, and I2C, LIN bus, SCI, and SPI connectivity interfaces in a compact surface-mount footprint. An 8-bit microcontroller is an embedded processor that executes instructions on 8-bit data words, sitting at the entry level of the microcontroller hierarchy: MCU -> embedded processor -> system-on-chip. The HCS08 family, originally developed by Freescale Semiconductor (now NXP), extends the popular HC08 instruction set with the added BGND instruction and enhanced low-power modes, making it a mainstay for cost-sensitive control tasks such as appliance control, automotive body electronics, and industrial sensing nodes. Key features of the MC9S08SH8MTJ include the 40MHz HCS08 CISC CPU (20MHz bus clock), 8KB of on-chip Flash program memory, and 0.512KB of internal RAM. Peripherals include a 12-channel, 10-bit analog-to-digital converter for direct sensor interfacing and an analog comparator for voltage-monitoring duties. The device supports up to 32 interrupt and reset sources and operates across a wide 2.7V to 5.5V supply range, allowing direct connection to both 3.3V and 5V systems. Architecturally, the S08 core executes the HC08 instruction set with full object-code compatibility, easing migration from legacy HC08 designs. The S08SH family is positioned as a low-end option for applications in the 5-volt range, and integrated low-voltage detection (LVD) protects against brown-out conditions. On-chip Flash supports in-circuit reprogramming, reducing development cycle time. Typical applications include small appliance and power-tool control, low-cost sensor nodes using the 10-bit ADC, LIN-bus slave nodes in automotive body electronics, and 5V industrial logic glue functions where a compact 20-pin TSSOP footprint and 5V tolerance are required. When designing with this part, note that NXP lists the MC9S08SH8MTJ as NRND (Not Recommended for New Designs); new projects should evaluate current-generation alternatives, while existing designs can continue sourcing for maintenance. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer product page, delivering information gain beyond a standard datasheet listing.

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MC9S08SH8MWJ - 40MHz 8-Bit 8KB Flash MCU | NXP
MC9S08SH8MWJ

MC9S08SH8MWJ - 40MHz 8-Bit 8KB Flash MCU | NXP

NXP Semiconductors MC9S08SH8MWJ is an 8-bit S08SH microcontroller with an S08 CISC core, 40 MHz maximum operating frequency, 8 KB flash memory, and a 20-pin SOIC package. Designed for cost-sensitive embedded systems operating in the 3.3 V and 5 V ranges, the device combines embedded flash, RAM, communication peripherals, timer functions, and low-power operating modes in one compact surface-mount package. An 8-bit microcontroller is a programmable semiconductor that executes a central processing unit core and embedded peripherals from a compact integrated circuit. The S08 architecture belongs to the HCS08 family and is intended for embedded control tasks requiring modest processing bandwidth, deterministic peripheral operation, and low system complexity. MC9S08SH8MWJ targets applications in industrial controls, consumer equipment, motor-related modules, and simple embedded products where an 8 KB flash footprint is sufficient. The principal device characteristics are a 40 MHz S08 CPU, 8 KB of flash program memory, and 512 bytes of RAM. Product listings also identify the device as an 8-bit CISC microcontroller with 3.3 V and 5 V operation. Its 20-pin SOIC package supports conventional PCB assembly and provides a practical upgrade path within suitably pin-compatible S08SH designs. The S08SH family was introduced as a low-end option for applications associated with the 5 V operating range. Integrated resources make the MCU useful without requiring a separate external processor. The device family supports interrupt and reset handling, timers, serial communication, and analog conversion functions. Published family information describes a 12-channel, 10-bit ADC with a 2.5-second conversion time and automatic comparison capability. Individual peripheral availability, interrupt-vector locations, and electrical limits should be confirmed against the pin description and feature tables in the NXP datasheet before schematic capture. Typical designs include small motor controllers, appliance controls, sensor-conditioning systems, communication modules, and compact user-interface equipment. The 8 KB program-memory limit makes code footprint and library selection important considerations. A compiler, debugger, programmer, and the correct S08 family device definition should be confirmed before committing to a new design or migrating existing firmware. When laying out a board, route the exposed programming and communication signals away from sensitive analog inputs, provide clean local supply decoupling, and follow the manufacturer’s recommended pin connections. Because MC9S08SH8MWJ is marked end of life on the NXP product page, production planning should account for lifecycle risk, availability constraints, and qualification of any pin-compatible replacement before design release. This page combines the product’s principal architecture, memory, package, lifecycle, and sourcing details with practical design guidance, application fit criteria, and a structured assessment of replacement constraints. It also distinguishes confirmed device attributes from parameters that must be obtained from the official technical documentation.

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MC9S08SL16CTJ - 8-bit S08 MCU 16KB Flash 40MHz | NXP
MC9S08SL16CTJ

MC9S08SL16CTJ - 8-bit S08 MCU 16KB Flash 40MHz | NXP

The NXP (Freescale) MC9S08SL16CTJ is an 8-bit S08 microcontroller IC running at up to 40 MHz with 16KB (16K x 8) FLASH program memory, 256 x 8 bytes of EEPROM, and a 20-pin TSSOP surface-mount package. Connectivity includes I2C, LINbus, SCI, and SPI, with 16 general-purpose I/O lines. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data memory, and peripherals on one die, sitting at the low end of the embedded processor hierarchy (8-bit MCU -> 32-bit MCU -> application processor). The S08 (HCS08) family is Freescale's enhanced successor to the HC08, adding the BGND background-debug instruction while retaining HC08 instruction-set compatibility, which eases migration of legacy designs. Key features of this part include the 40-MHz HCS08 CPU, an embedded Slave LIN Interface Controller (SLIC) that boosts LIN slave node performance and shortens development time, and up to 32 supported interrupt/reset sources. On-chip peripherals cover low-voltage detection (LVD), power-on reset (POR), PWM capability, and a watchdog timer (WDT), reducing external component count. The SLIC module is the architectural differentiator: by handling LIN protocol framing in hardware, the CPU is freed for application code, making the device well suited to automotive and industrial LIN slave nodes such as window lifters, seat controllers, sensors, and small actuators. The dual 3.3V/5V supply capability allows direct interfacing with 5V automotive domains. Typical applications include LIN-bus slave nodes in body electronics, motor control subassemblies, and industrial sensor endpoints. Design consideration: as an original Freescale/NXP part now widely flagged obsolete, verify supply continuity early; the S08SG/SH siblings in the same TSSOP-20 footprint are the natural candidates for new layouts. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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MC9S08SL8CTJ - 8-Bit 40MHz S08 MCU, 8KB Flash | NXP
MC9S08SL8CTJ

MC9S08SL8CTJ - 8-Bit 40MHz S08 MCU, 8KB Flash | NXP

NXP Semiconductors MC9S08SL8CTJ is an 8-bit S08SL microcontroller with an S08 CPU core, 8KB flash memory, 512B RAM, and a 40MHz maximum clock speed in a 20-TSSOP package. The device targets cost-sensitive consumer and industrial equipment and includes an embedded slave LIN interface controller, EEPROM, and an integrated keyboard interface. A microcontroller is a programmable semiconductor that integrates a CPU, memory, and peripherals into one device. The S08 family belongs to the HCS08 architecture and combines the HC08 instruction set with an added BGND instruction. Within the product hierarchy, MC9S08SL8CTJ is an 8-bit embedded MCU, a cost-focused member of the S08SL family designed for compact control and communication products. The principal features include 8KB of flash, 512B of RAM, a 40MHz HCS08 CPU, 16 I/O ports, and a 16-channel, 10-bit ADC. It also provides support for up to 32 interrupt and reset sources. An embedded slave LIN controller is especially useful in cost-sensitive automotive and industrial networks, while EEPROM supports parameter storage without using scarce flash program space. The operating voltage range is 2.7V to 5.5V, allowing connection to common 3.3V and 5V systems. The industrial temperature range is -40°C to +85°C. Its 20-TSSOP package has a stated width of 4.40mm, making the device suitable for compact PCB layouts where a larger plastic package would be undesirable. Typical applications include LIN-connected slave nodes, small motor-control modules, keypad-based user interfaces, appliance controls, sensor-conditioning equipment, and cost-sensitive consumer products. The integrated keyboard interface is particularly useful in products with a small number of switches, while the ADC supports direct connection of analog sensors. When laying out a design, begin with the manufacturer's pin-description and recommended application schematics. Place decoupling capacitors close to the supply pins, route the analog input traces away from switching nodes, and confirm that the external programming and debug arrangement matches the chosen S08 development system. Although the device is listed as NRND by NXP, it remains relevant for maintenance and continuation of existing embedded designs. This page combines the manufacturer product information with an engineering-focused review of memory, analog conversion, connectivity, package constraints, lifecycle considerations, and practical design decisions. It also identifies the limits of drop-in replacement evidence so engineers can distinguish confirmed compatibility from parts that merely use a similar package or belong to a related MCU family.

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MC9S08SL8CTL - 8KB Flash 40MHz S08 MCU w/ LIN | NXP
MC9S08SL8CTL

MC9S08SL8CTL - 8KB Flash 40MHz S08 MCU w/ LIN | NXP

The NXP MC9S08SL8CTL is an 8-bit S08SL microcontroller with 8KB Flash, 40MHz HCS08 CPU core, embedded slave LIN interface controller (SLIC), and an integrated LIN physical layer in a 28-pin TSSOP package. It targets cost-sensitive automotive body and LIN slave node applications. An MCU (microcontroller unit) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and peripherals such as timers, ADC, and communication interfaces. The MC9S08SL8CTL belongs to the S08 family of 8-bit microcontrollers, which traces to the original HC08 instruction set with extensions like BGND for background debug. Within NXP's portfolio, it sits in the S08SL sub-line that adds a slave LIN interface controller (SLIC) and on-chip LIN transceiver, simplifying LIN slave node designs. Key features include 8KB on-chip Flash, 512 bytes EEPROM, 256-byte TFL (Three-Flash-Lock) security area, 16-bit timer/PWM module (TPM), a 16-channel 10-bit ADC with 2.5 µs conversion, and an inter-integrated circuit (IIC) serial interface. The supply voltage range is 2.7V to 5.5V and the device supports up to 32 interrupt sources. The integrated LIN 2.1 / SAE J2602 physical layer plus SLIC removes the need for an external LIN transceiver in most LIN slave nodes. The HCS08 core executes most instructions in 1-2 bus cycles at 40MHz internal bus rate, achieving roughly 1 MIPS/MHz effective throughput. Internal architecture is Freescale (now NXP) proprietary 0.25 µm CMOS, paired with an on-chip voltage regulator that allows single-supply 2.7V-5.5V operation. Background debug mode (BDM) and on-chip in-circuit emulation simplify firmware development and field upgrades. Typical applications include automotive body control modules (door modules, seat controllers, mirror switch packs), LIN slave nodes for HVAC blower controls and ambient lighting, and industrial sensor peripherals with LIN connectivity. It is also used in low-cost consumer appliances that benefit from LIN or IIC host communication. When designing, note that 28-pin TSSOP thermal limits and 5V-tolerant I/O are appropriate for body electronics rather than under-hood conditions. Decouple VDD/VSS with a 100 nF ceramic placed within 5 mm of the IC, and follow NXP's AN3494 LIN physical-layer layout guidelines for EMC robustness. This page synthesizes distributor pricing, verified drop-in alternatives, and application-specific design guidance that complement the manufacturer datasheet.

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