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MC908JL3ECFAE

MC908JL3ECFAE - 8MHz 8-bit HC08 MCU 4KB Flash 48-LQFP | NXP

The NXP MC908JL3ECFAE is an 8-bit M68HC08-family microcontroller unit (MCU) featuring a CPU08 core running at up to 8 MHz, 4 KB of on-chip FLASH program memory, 128 bytes of RAM, and a 48-pin LQFP (7x7 mm) package. It belongs to the low-cost, high-performance HC08JK/HC08JL sub-family designed for cost-sensitive embedded control applications such as consumer appliances, motor control, LED lighting, and small industrial control boards. The part is also marked as "No Longer Manufactured" on the NXP product page, putting it into an obsolete lifecycle state where remaining inventory is sold through distributors and authorized aftermarket channels (e.g., Rochester Electronics, Flip Electronics). A microcontroller (MCU) is a single-chip computer that integrates a CPU, volatile memory (RAM), non-volatile memory (FLASH/ROM), and peripheral interfaces into one package. Within the broader IC hierarchy, an MCU sits at the intersection of digital ICs and microcontrollers; the HC08 line further specializes as an 8-bit CISC architecture aimed at legacy code reuse and easy migration from the earlier HC05 family. The MC908JL3ECFAE specifically targets designs that need small FLASH, modest RAM, and rich on-chip analog/digital peripherals without the cost penalty of a 32-bit ARM core. Key features of the MC908JL3ECFAE include an integrated ADC for analog signal acquisition, PWM channels for motor or LED dimming control, an LED driver interface, low-voltage detection (LVD), power-on reset (POR), and multiple timers. The CPU08 core executes most instructions in 2 bus cycles (with internal clock doubling equivalent to ~4 MHz effective throughput per MHz) and supports the HC05 instruction set for source-level compatibility. The 48-LQFP (7x7) package provides 32 or more general-purpose I/O pins depending on peripheral allocation, suitable for moderate pin-count designs. Technically, the part operates across a 2.7V-5.5V supply range and includes both internal oscillator and external clock options. Its FLASH memory supports in-application reprogramming via the standard HC08 background debug module, enabling firmware updates without removing the chip from the board. The 'E' suffix in the part number indicates an extended temperature range (-40C to +125C), making it suitable for industrial and automotive under-hood environments. Typical applications of the MC908JL3ECFAE include small appliance control (washing machines, microwave ovens, rice cookers), LED lighting controllers, fan and pump motor drives, simple sensor hubs, and battery-management front-ends. The combination of PWM, ADC, and timer peripherals allows designers to build closed-loop control loops with minimal external components. When designing with this part, note that the HC08 toolchain is mature but legacy: most engineers now use the newer S08 or S12 families for new designs. For new production, evaluate pin-compatible S08 successors; for repair and legacy support, source the MC908JL3ECFAE through authorized channels with full traceability. This page synthesizes current distributor stock, lifecycle status, datasheet links, and same-family alternatives that physical-pinmap to the original footprint, giving engineers a single reference point that distributor product pages do not aggregate.

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MC908JL3ECPE

MC908JL3ECPE - HC08 8-Bit MCU, 4KB Flash, 8MHz, 28-DIP | NXP

The NXP MC908JL3ECPE is a member of the M68HC08 Family of 8-bit microcontroller units (MCUs), featuring an HC08 core running at 8MHz with 4KB of on-chip FLASH program memory and 128 bytes of RAM. Housed in a 28-pin PDIP through-hole package, it is designed for cost-sensitive embedded control applications requiring a small footprint and integrated analog peripherals. The 'E' suffix denotes the enhanced HC08JL variant with improved flash endurance and on-chip debug support, and 'CPE' indicates the commercial 28-pin PDIP package. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and peripherals such as timers, communications interfaces, and analog-to-digital converters. The MC908JL3ECPE belongs to the 8-bit MCU category, sitting within the broader taxonomy of microcontrollers -> microprocessors -> semiconductors -> integrated circuits. The HC08 architecture is an object-code-compatible evolution of the earlier M68HC05 family, offering an enhanced instruction set while preserving legacy code portability for cost-driven designs. Key features include an integrated 8-channel 10-bit analog-to-digital converter (ADC), an enhanced serial communications interface (ESCI), a 16-bit timer with capture/compare/PWM, and an internal clock generator with software-selectable trim. The device operates over a 3V to 5.5V supply range and supports industrial -40C to +85C temperature grades, with low-power STOP and WAIT modes reducing quiescent current for battery-connected designs. Architecturally, the MC908JL3ECPE leverages a von Neumann bus with a 16-bit stack pointer and 8-bit ALU, complemented by on-chip voltage regulator and brown-out reset. FLASH memory supports in-application reprogramming, and the background debug module (BDM) enables non-intrusive in-circuit debugging and flash programming using a single-wire interface. Typical applications include appliance control boards, low-end HVAC thermostats, simple sensor interfaces, lighting controllers, and battery-powered consumer devices. The integrated ADC and PWM channels make it well suited for closed-loop motor control, LED dimming, and analog signal conditioning in industrial white goods. Designers should plan for external decoupling (0.1uF ceramic at VDD) and provide adequate PCB clearance around the 28-pin PDIP through-hole footprint for wave-solder compatibility. For new designs, verify long-term availability and consider pin-compatible HC08 family variants or modern Kinetis E-series replacements from NXP for active-production programs. This page consolidates distributor pricing, drop-in 28-pin PDIP alternatives, and practical design notes that complement the manufacturer datasheet for engineers evaluating the MC908JL3ECPE.

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MC908JL3EMDWE

MC908JL3EMDWE - HC08 8-bit MCU 4KB Flash 128B RAM 28-SOIC | NXP

The NXP (formerly Freescale) MC908JL3EMDWE is an 8-bit HC08-family microcontroller unit (MCU) featuring 4KB of on-chip Flash program memory and 128 bytes of RAM, housed in a 28-pin wide-body SOIC package. It operates from a single 3V to 5.5V supply and integrates an 8-channel 10-bit analog-to-digital converter (ADC), timer, serial communications interface, and on-chip in-system programmable Flash with security features, enabling compact, single-chip embedded control solutions. Background: An 8-bit microcontroller is a small, self-contained computing element built around an 8-bit central processing unit (CPU), on-chip non-volatile program memory (Flash or ROM), volatile data memory (RAM), and a fixed set of peripherals such as timers, ADC, and serial interfaces. 8-bit MCUs occupy the low-power, low-cost end of the microcontroller taxonomy and sit beneath 16-bit, 32-bit (for example ARM Cortex-M0) and 64-bit microcontroller cores in computing power but typically above simple programmable logic and discrete timer circuits in integration. The HC08 family is one of the long-running M68HC08 architectures from Motorola/Freescale/NXP, optimized for cost-sensitive consumer, appliance, and industrial control applications. Key features: the JTAG/Flash-resident debug interface supports in-circuit programming and real-time emulation; the 10-bit ADC with 8 channels provides enough resolution for sensor conditioning in HVAC, white goods, and simple motor control loops; the internal oscillator and PLL-less clocking simplify external BOM; and the security lock on Flash prevents unauthorized code readout. The 28-SOIC (wide-body) package with 0.295 inch (7.50 mm) body width supports hand-soldering-friendly prototyping while still being compatible with standard SOIC-28 land patterns. From an architecture standpoint, the device uses the Freescale HC08 CISC-style core with a 16-bit stack pointer and 8-bit accumulator-based CPU, which keeps interrupt latency predictable for small real-time loops. The peripheral set is mapped through a memory-mapped register model rather than a modern peripheral-mapped descriptor scheme. Typical applications include low-cost white-goods controllers (rice cookers, washing-machine user interfaces), thermostats and HVAC controllers, simple sensor-interface boards, remote controls, and replacement of legacy HC11 designs where modest code size, low power, and minimal external components are the deciding requirements. Design tip: when migrating from the HC08 to a newer S08 platform (such as S08JM or S08QD families), pinout is generally not drop-in and code tools (CodeWarrior HC08 versus CodeWarrior S08) differ. Plan for compilation and pin re-mapping effort when designing in the JL3 if future migration is a possibility. This page synthesizes distributor stock data, lifecycle notes, drop-in alternatives, and practical design commentary not found in the Freescale/NXP datasheet alone.

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MC908JL3EMDWE-FR

MC908JL3EMDWE-FR - 8-Bit HC08 MCU 8MHz 4KB Flash | NXP

The NXP (Freescale) MC908JL3EMDWE-FR is an 8-bit flash microcontroller from the M68HC08 family, delivering 8 MHz CPU bus performance, 4KB (4K x 8) of on-chip FLASH program memory, and 128 bytes of RAM, packaged in a 28-pin SOIC (SOIC W, wide-body) surface-mount package. The -FR suffix denotes the shipping/packaging variant of the MC908JL3EMDWE die. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a processor core, program memory, data memory, and peripheral functions such as timers, analog-to-digital converters, and general-purpose I/O on a single die. Within the semiconductor hierarchy, an MCU belongs to the embedded processor category of integrated circuits, sitting below 16-bit and 32-bit application processors in complexity while offering lower cost, lower power, and simpler software development. The M68HC08 family, originally developed by Motorola and later Freescale Semiconductor (now NXP Semiconductors), is a low-cost, high-performance evolution of the classic 68HC05 architecture with an upward-compatible instruction set. Key features of the MC908JL3 include the enhanced HC08 central processor unit running at up to 8 MHz, 4KB of in-circuit reprogrammable FLASH memory for field firmware updates, 128 bytes of on-chip RAM, an on-chip analog-to-digital converter (A/D), and a low-voltage inhibit reset function. Peripherals and memory sizes make the device well suited for cost-driven control tasks that require modest program space but robust industrial-grade operation. Technical depth: the HC08 core executes a fully upward-compatible object code set from the HC05 family with added indexed addressing modes, stack pointer-relative instructions, and a modulo-down counter timer system. Flash memory program/erase is managed on-chip with a charge pump, eliminating external high-voltage programming supplies. The availability of a wide SOIC-28 package provides generous pin pitch for hand assembly and rework in industrial environments. Typical applications include small appliance control, consumer electronics front panels, industrial sensor nodes, automotive accessory modules, and simple motor or heater control loops where a low-cost 8-bit flash MCU with on-board A/D conversion suffices. Design consideration: verify FLASH memory endurance and write-protect configuration against the manufacturer datasheet, and note that this device is End-of-Life per NXP product information - new designs should consider current-generation successors. This page synthesizes distributor availability data, EOL status, and drop-in same-family alternatives not consolidated in a single manufacturer page, adding value for engineers maintaining legacy HC08-based designs.

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MC908JL8CDWE

MC908JL8CDWE - 8KB Flash 8-Bit HC08 MCU 28-SOIC | NXP

The NXP (formerly Freescale) MC908JL8CDWE is an 8-bit HC08 family microcontroller featuring 8KB of Flash memory, 8MHz CPU clock, and an integrated 8-bit ADC, housed in a 28-pin SOIC wide-body package. It belongs to the low-cost, high-performance M68HC08 family of microcontrollers built on Freescale's customer-specified integrated circuit (CSIC) design strategy, using the enhanced M68HC08 central processor unit (CPU08). An 8-bit microcontroller (MCU) is a small computer-on-a-chip that integrates a CPU, RAM, non-volatile program memory, and peripherals into a single IC. Within the broader taxonomy, 8-bit MCUs sit under microcontrollers, which sit under embedded processors, which sit under semiconductors. The HC08 family in particular targets cost-sensitive embedded control applications where deterministic behavior, low power, and ease of programming outweigh raw compute throughput. Key features include 8KB (8K x 8) of on-chip Flash program memory, an 8-channel 8-bit ADC, an integrated clock generator, multiple timers, and a variety of I/O options. The device operates from 3.3V or 5V supplies, supports an 8MHz bus clock, and includes an on-chip in-circuit debugger interface. The 28-SOIC wide-body package provides a robust through-hole-replacement footprint that simplifies hand-soldering and rework. Technically, the CPU08 core delivers CISC instruction set compatibility with the earlier HC05 family while adding indexed addressing improvements and a background debug mode (BDM). The Flash memory supports in-application reprogramming via the BDM or ROM-resident routines, enabling field firmware updates without an external programmer. Typical applications include appliance control (washing machines, microwave ovens, HVAC fans), industrial sensor conditioning, low-end motor control, security keypads, and battery-powered consumer devices. Its small footprint and integrated ADC reduce external BOM in cost-driven designs. When designing with this device, ensure the supply decoupling network follows the datasheet reference (typically 100 nF plus bulk capacitor). Verify that the BDM connector is accessible for in-circuit debugging and that the Flash programming voltage timing meets the data sheet specifications. This page synthesizes current distributor pricing, drop-in compatible alternatives, and practical design notes that go beyond what the manufacturer datasheet alone provides, helping engineers evaluate, source, and apply the MC908JL8CDWE.

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MC908JL8CDWER

MC908JL8CDWER - 8KB Flash 8-Bit HC08 MCU 28-SOIC | NXP (Tape & Reel)

The NXP (formerly Freescale) MC908JL8CDWER is an 8-bit HC08 family microcontroller featuring 8KB of Flash memory, 8MHz CPU clock, and an integrated 8-bit ADC, housed in a 28-pin SOIC wide-body package. It belongs to the low-cost, high-performance M68HC08 family of microcontrollers built on Freescale's customer-specified integrated circuit (CSIC) design strategy, using the enhanced M68HC08 central processor unit (CPU08). An 8-bit microcontroller (MCU) is a small computer-on-a-chip that integrates a CPU, RAM, non-volatile program memory, and peripherals into a single IC. Within the broader taxonomy, 8-bit MCUs sit under microcontrollers, which sit under embedded processors, which sit under semiconductors. The HC08 family in particular targets cost-sensitive embedded control applications where deterministic behavior, low power, and ease of programming outweigh raw compute throughput. Key features include 8KB (8K x 8) of on-chip Flash program memory, an 8-channel 8-bit ADC, an integrated clock generator, multiple timers, and a variety of I/O options. The device operates from 3.3V or 5V supplies, supports an 8MHz bus clock, and includes an on-chip in-circuit debugger interface. The 28-SOIC wide-body package provides a robust through-hole-replacement footprint that simplifies hand-soldering and rework. Technically, the CPU08 core delivers CISC instruction set compatibility with the earlier HC05 family while adding indexed addressing improvements and a background debug mode (BDM). The Flash memory supports in-application reprogramming via the BDM or ROM-resident routines, enabling field firmware updates without an external programmer. Typical applications include appliance control (washing machines, microwave ovens, HVAC fans), industrial sensor conditioning, low-end motor control, security keypads, and battery-powered consumer devices. Its small footprint and integrated ADC reduce external BOM in cost-driven designs. When designing with this device, ensure the supply decoupling network follows the datasheet reference (typically 100 nF plus bulk capacitor). Verify that the BDM connector is accessible for in-circuit debugging and that the Flash programming voltage timing meets the data sheet specifications. This page synthesizes current distributor pricing, drop-in compatible alternatives, and practical design notes that go beyond what the manufacturer datasheet alone provides, helping engineers evaluate, source, and apply the MC908JL8CDWER.

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MC908JL8CFAER2

MC908JL8CFAER2 - 8KB Flash 8MHz 8-bit HC08 MCU | NXP | 32-LQFP

The NXP MC908JL8CFAER2 is an 8-bit HC08-family microcontroller with 8KB of FLASH program memory, 256B RAM, and an integrated 8-bit ADC, housed in a 32-pin LQFP (7x7) package. It is part of the low-cost, high-performance M68HC08 Family and operates at 8MHz internal bus frequency across 2.7V–5.5V, targeting cost-sensitive embedded applications. An 8-bit microcontroller is a single-chip computer that integrates a CPU, program memory (FLASH/ROM), data memory (RAM), and peripherals (ADC, timers, I/O, communication blocks) on one silicon die. Within the embedded hierarchy, the MC908JL8CFAER2 sits as: MCU -> 8-bit microcontroller -> HC08 family -> Freescale/NXP M68HC08 lineage -> embedded controller. It typically replaces discrete logic in appliances, sensor interfaces, and human-interface subsystems where 32-bit overhead is not justified. Key features include an on-chip 8-channel 8-bit ADC for analog sensor digitization, a 16-bit timer with capture/compare/PWM, an internal oscillator trimming block, low-voltage reset, and up to 23 general-purpose I/O pins. The 32-LQFP package exposes the full peripheral set while remaining hand-solderable for prototyping. The device uses the HC08 CPU core, which executes most instructions in 1–2 internal bus cycles and supports BCD arithmetic, stop/wait low-power modes, and a built-in in-circuit FLASH programming interface. The integrated 8-bit ADC replaces an external ADC chip in many designs, reducing BOM cost. Typical applications include BLDC motor control in white goods, sensor signal conditioning, keypad interfaces, IR remote controls, and HVAC thermostat boards. Its 5V tolerance and broad I/O count make it a fit for industrial sensor hubs. When designing with this device, ensure the supply decoupling network uses a 100nF ceramic capacitor within 5mm of the VDD pins. FLASH programming requires the factory bootloader mode — confirm that your toolchain supports HC08 before lockout. This page synthesizes distributor pricing, drop-in HC08 alternatives, and practical design notes not found in the manufacturer datasheet.

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MC908JL8CPE

MC908JL8CPE - HC08 8MHz 8KB Flash 28-PDIP MCU | NXP

The NXP MC908JL8CPE is an 8-bit HC08 family microcontroller featuring an 8 MHz bus clock, 8 KB of on-chip Flash program memory, an integrated 8-channel 8-bit ADC, and a 28-pin PDIP through-hole package. It belongs to the cost-optimized HC08JL sub-family designed for low-cost, high-performance embedded control in appliances, automotive body electronics, and industrial sensor interface modules. What is an 8-bit microcontroller? An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (ROM/Flash), data memory (RAM), and peripherals on one die. The HC08 architecture is a CISC (Complex Instruction Set Computer) successor to the legacy M68HC05 family; it improves code density through indexed addressing modes and a wider instruction set while preserving the tool-chain and programmer model that legacy HC05 users already know. Key features of the MC908JL8CPE include 128 bytes of RAM, 8 Kbytes of Flash, an 8-bit ADC with up to 8 input channels, a 16-bit timer with pulse-width modulation capability, and an SCI (Serial Communications Interface) for asynchronous serial communication. The device operates from a single 3.0 V to 5.5 V supply and includes a low-power wait/stop mode that drops quiescent current for battery-powered or sleep-dominated duty cycles. From a system architecture standpoint, the HC08JL core uses a 16-bit stack pointer, an 8-bit accumulator (A) and an 8-bit index register (H:X) for compact C and assembly code. The Flash controller supports in-application reprogramming, allowing firmware updates in the field without removing the MCU from the board. The 8-bit successive-approximation ADC shares its analog supply with the digital VDD through internal isolation, but a clean VREF decoupling is required for full-resolution conversion accuracy. Typical applications for the MC908JL8CPE include white-goods control boards (washing machines, dishwashers, microwave ovens), simple sensor-interface modules, low-end HVAC controls, two- and three-wheeled vehicle body controllers, battery chargers, and consumer remote controls. Its small Flash size, on-chip ADC, and SCI make it a strong fit when cost is more critical than processing throughput. When designing with this part, budget the ADC acquisition time and add a 100 nF decoupling cap on VREFAD; the 8-bit converter is sensitive to high-frequency digital switching noise injected into the analog rail. Avoid routing high-current motor traces near pins 24-28 to prevent ADC reading instability. This page consolidates distributor pricing, NXP/Freescale HC08JL pinout, drop-in replacement MPNs, and application notes not always obvious from the standalone datasheet - giving engineers a single reference for design-in and sourcing decisions.

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MC908JL8MDWE

MC908JL8MDWE - HC08 8-bit MCU 8KB Flash 28-SOIC | NXP

The NXP MC908JL8MDWE is a member of the low-cost, high-performance M68HC08 Family of 8-bit microcontroller units (MCUs), featuring an 8 MHz HC08 CPU core, 8 KB of FLASH program memory (8K x 8), and an integrated 8-bit A/D converter in a 28-pin SOIC package. The part ships in the industrial temperature grade (-40 °C to +85 °C) per the MD suffix, and integrates 13 A/D converter channels plus an SCI (serial communications interface) for asynchronous UART communication. What is a HC08 microcontroller? The HC08 is NXP's (formerly Motorola/Freescale) 8-bit CISC microcontroller architecture, positioned in the cost-sensitive end of the embedded MCU spectrum. HC08 parts are organized into a hierarchy of sub-families - the JL/JK series sits within HC08 as a low-cost, FLASH-based derivative with integrated analog, targeted at simple control loops, sensor signal conditioning, and consumer white-goods. The HC08 architecture succeeds the earlier HC05 architecture and is in turn succeeded by the HCS08 and S08 architectures, but remains in production for long-life industrial designs. Key features include 256 bytes of RAM, 13-channel 8-bit A/D, an internal clock generator with bus frequencies up to 8 MHz, and a wide operating voltage range suitable for 3 V and 5 V systems. The 28-SOIC package supports surface-mount assembly and provides adequate thermal performance for the typical 5–25 mA operating current of HC08 parts. Compared with modern Cortex-M0+ devices, the HC08 trades compute throughput and DMA for BOM cost, robustness and a stable 20+ year supply lifecycle. Typical applications include appliance control boards (washing machines, dishwashers, microwave ovens), HVAC blower and fan controls, simple sensor hubs, motor control for low-DC-current loads, and battery-powered instrument front-ends. Its FLASH memory enables field re-programming for firmware updates without UV erasure. When designing with the MC908JL8MDWE, ensure the integrated SCI UART pins are dedicated if asynchronous communication is required, and place the required bypass capacitors on the VDD/VSS pair as close as possible to the package pins. Designers migrating to newer platforms should consider S08 and Kinetis families; the HC908JL8 retains the longest-qualified long-life cycle.

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MC908JL8MPE

MC908JL8MPE - HC08 8-Bit MCU 8KB Flash 28-PDIP | NXP

The NXP (formerly Freescale) MC908JL8MPE is an 8-bit HC08 family microcontroller (HC08JL series) featuring 8KB of on-chip Flash program memory, 256 bytes of RAM, an integrated 8-channel 8-bit ADC, and a 28-pin PDIP through-hole package. The CPU core runs at up to 8 MHz internal bus frequency from a 5 V supply, providing deterministic CISC-style instruction execution for cost-sensitive embedded control. The HC08JL series targets low-cost appliance, motor control, and human-machine interface (HMI) replacement designs where Flash-based reprogrammability and on-chip analog simplify the BOM. HC08 microcontrollers belong to the broader 8-bit microcontroller category within the microcontroller > embedded controller > semiconductor taxonomy. The HC08 instruction set is a CISC (Complex Instruction Set Computing) architecture that evolved from the earlier M68HC05 family, preserving code compatibility while adding indexed addressing modes, a wider stack pointer, and a cleaner interrupt model. Compared with 4-bit controllers, the HC08 offers a meaningful step up in arithmetic performance and code density for products that outgrow a PIC16F or simple sub-€1 MCU. Key features include 8KB Flash with in-system programming support, an 8-bit successive-approximation ADC with multiple input channels for sensor conditioning, a 16-bit timer with capture/compare/PWM capability, an asynchronous serial communications interface (SCI) for UART-style comms, and a serial peripheral interface (SPI). The 28-pin PDIP package simplifies prototyping and rework on through-hole boards, and supports operating temperatures suitable for industrial and consumer environments per the device datasheet. The architecture pairs a simple 8-bit ALU with HC08-standard peripherals and a low-power STOP/WAIT mode, allowing battery-backed and energy-aware designs. Because the HC08JL series is mature and broadly documented, reference code and toolchains (CodeWarrior HC08, third-party assemblers, and open-source SDCC) are widely available, accelerating firmware development for new designs or for maintaining legacy equipment. Typical applications include sub-€1 microcontroller replacement in white goods, simple motor control (small DC fans, solenoids, low-cost stepper sequencing), appliance user-interface boards, security keypad controllers, remote-control transmitters, and battery chargers. The integrated ADC and PWM make it especially well-suited to closed-loop control where external analog ICs would inflate the bill of materials. Designers should consult the manufacturer datasheet for the exact pinout, ADC channel mapping, and Flash programming/erasure endurance ratings before committing to a layout. The 28-pin PDIP footprint allows the use of standard through-hole sockets for development and field replacement. This page synthesizes distributor pricing, alternative MPN recommendations, and practical design notes not consolidated in the manufacturer datasheet, helping procurement and engineering teams evaluate the MC908JL8MPE against current alternatives.

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MC908JW16FAE

MC908JW16FAE - 8-bit HC08 MCU with USB, 16KB Flash | NXP

The NXP MC908JW16FAE is an 8-bit HC08 microcontroller with integrated USB 1.1 full-speed device support, 16 KB of flash memory, and 1.4 KB of RAM, housed in a 48-pin LQFP package. It operates from a 2.7 V to 3.6 V supply, runs the HC08 core at up to 8 MHz internal bus frequency, and targets low-cost USB peripheral designs. Background knowledge: An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, optimized for embedded control tasks such as human-interface devices, sensor reading, and low-rate communication. The MC908JW16 belongs to the Freescale/NXP HC08 family, which sits in the product-type hierarchy: microcontroller -> embedded processor -> integrated circuit -> semiconductor. HC08 devices use a von Neumann architecture with on-chip flash and RAM, and the JW sub-family adds a USB 1.1 device controller plus a 12-channel, 10-bit ADC. Key features include 16 KB of flash program memory with in-application programming support, a USB 1.1 full-speed (12 Mbps) device transceiver that meets USB 2.0 full-speed electrical specifications, and a 12-channel 10-bit analog-to-digital converter. Additional peripherals are a 2-channel timer interface (TPM), a serial communications interface (SCI), a serial peripheral interface (SPI), and an 8-bit keyboard interrupt module. The architecture pairs the HC08 CPU with an on-chip voltage regulator, brownout reset, low-voltage reset, and a clock generator module supporting an external crystal or internal trimmable reference. The integrated USB pull-up on the D+ line and the USB transceiver allow direct connection to a Type-B or Mini-B connector, eliminating external PHY circuitry. Typical applications include USB keyboards, USB mice, USB gamepads, USB barcode scanners, USB custom HID peripherals, low-cost USB-to-UART bridges, and embedded consumer devices that require a single-chip USB interface. When designing with this part, observe USB signal-integrity guidelines and keep the D+/D- traces short, length-matched, and routed over a continuous ground plane; the integrated transceiver is sufficient for typical peripheral cables up to 3 m. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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MC908KX2CDWE

MC908KX2CDWE - HC08 8-Bit MCU 2KB Flash 16-SOIC | NXP

The NXP MC908KX2CDWE is an 8-bit HC08 microcontroller with an 8 MHz CPU08 core, 2 KB of FLASH program memory, 192 bytes of RAM, and 13 general-purpose I/O lines, housed in a 16-pin wide-body SOIC (DWE) package. According to NXP product data, it operates from a 3.3V or 5V supply and integrates LVD, POR, and PWM peripherals with an SCI serial interface. An 8-bit microcontroller is a complete computer system on a single chip that executes control, sensing, and communication tasks inside embedded products. Within the power management hierarchy of embedded systems, the MCU sits above discrete logic and below application processors, making HC08-class devices the workhorses of cost-sensitive control applications. The M68HC08 family is based on NXP's customer-specified integrated circuit (CSIC) design strategy, and all family members share the enhanced CPU08 central processing unit. Key features of the MC908KX2CDWE include the low-cost, high-performance HC08 CISC core running at up to 8 MHz, 2KB (2K x 8) of in-system-programmable FLASH memory that eliminates external EPROM or OTP devices, on-chip low-voltage detection (LVD) for brown-out protection, and power-on reset (POR) that removes external supervisory circuitry. The 13 I/O lines and PWM capability suit direct drive of relays, LEDs, and small loads. Technically, the KX2 subfamily combines the CPU08 with a compact peripheral set and FLASH endurance suitable for field reprogramming. The SCI module supports standard asynchronous serial links for telemetry and configuration. Wide-supply operation from 3.3V to 5V allows a single design to span both logic families. Typical applications include small appliance control, battery chargers, automotive body accessories, and industrial sensor nodes where 2KB of code space is sufficient. Design consideration: verify FLASH code density early - at 2KB there is little headroom for protocol stacks, so budget code size carefully and consider the larger KX8 variant for growth paths. This page synthesizes distributor pricing, lifecycle status, and practical design notes not found in the manufacturer datasheet, providing drop-in sourcing context for this EOL part.

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MC908KX2CDWER

MC908KX2CDWER - HC08 8-Bit MCU 2KB Flash 16-SOIC | NXP (Tape & Reel)

The NXP MC908KX2CDWER is an 8-bit HC08 microcontroller with an 8 MHz CPU08 core, 2 KB of FLASH program memory, 192 bytes of RAM, and 13 general-purpose I/O lines, housed in a 16-pin wide-body SOIC (DWE) package. According to NXP product data, it operates from a 3.3V or 5V supply and integrates LVD, POR, and PWM peripherals with an SCI serial interface. An 8-bit microcontroller is a complete computer system on a single chip that executes control, sensing, and communication tasks inside embedded products. Within the power management hierarchy of embedded systems, the MCU sits above discrete logic and below application processors, making HC08-class devices the workhorses of cost-sensitive control applications. The M68HC08 family is based on NXP's customer-specified integrated circuit (CSIC) design strategy, and all family members share the enhanced CPU08 central processing unit. Key features of the MC908KX2CDWER include the low-cost, high-performance HC08 CISC core running at up to 8 MHz, 2KB (2K x 8) of in-system-programmable FLASH memory that eliminates external EPROM or OTP devices, on-chip low-voltage detection (LVD) for brown-out protection, and power-on reset (POR) that removes external supervisory circuitry. The 13 I/O lines and PWM capability suit direct drive of relays, LEDs, and small loads. Technically, the KX2 subfamily combines the CPU08 with a compact peripheral set and FLASH endurance suitable for field reprogramming. The SCI module supports standard asynchronous serial links for telemetry and configuration. Wide-supply operation from 3.3V to 5V allows a single design to span both logic families. Typical applications include small appliance control, battery chargers, automotive body accessories, and industrial sensor nodes where 2KB of code space is sufficient. Design consideration: verify FLASH code density early - at 2KB there is little headroom for protocol stacks, so budget code size carefully and consider the larger KX8 variant for growth paths. This page synthesizes distributor pricing, lifecycle status, and practical design notes not found in the manufacturer datasheet, providing drop-in sourcing context for this EOL part.

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MC908KX2CPE

MC908KX2CPE - 8-Bit HC08 MCU, 8MHz, 2KB Flash | NXP

The NXP (Freescale Semiconductor) MC908KX2CPE is an 8-bit HC08 family microcontroller running at up to 8 MHz, with 2KB (2K x 8) of Flash program memory and an integrated SCI serial interface, housed in a 16-pin PDIP through-hole package. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a processor core, program memory, data memory, and peripherals on one die, executing one instruction on 8-bit data words at a time. Within the embedded systems hierarchy, an MCU sits below 16/32-bit processors in compute capability but above discrete logic, offering a complete, low-cost control solution. The HC08 (M68HC08) family from Motorola/Freescale, now maintained by NXP, is a CISC-architecture 8-bit line widely used in cost-sensitive control applications and still supported for legacy designs through authorized aftermarket channels such as Rochester Electronics. Key features of the MC908KX2CPE include its 8 MHz internal bus operation, 2KB of in-system programmable Flash memory for field-updatable firmware, operation from either 3.3V or 5V supply rails, and an onboard SCI (Serial Communications Interface) for asynchronous UART communication. The 16-pin dual in-line package with through-hole terminals makes the device ideal for breadboarding, prototyping, and repair of legacy through-hole assemblies. Technically, the HC08 core implements an enhanced M6805-derived CISC instruction set with indexed addressing modes, a low-power wait mode, and on-chip oscillator options. The KX2 subfamily represents the smallest memory configurations of the KX line, targeting simple control loops, timing supervision, and interface translation tasks where larger flash arrays are unnecessary. Typical applications include small appliance control, industrial sensor signal conditioning nodes, LED and relay sequencing, battery charger supervision, and replacement MCUs in legacy industrial equipment repairs. The industrial temperature grade of the CPE suffix suits factory-floor environments. Design consideration: as a mature product, new designs should evaluate current NXP MCUs, but for legacy maintenance the 5V-tolerant through-hole package simplifies drop-in servicing of existing boards. This page synthesizes distributor stock data, pricing context, lifecycle information, and drop-in alternative analysis not consolidated in the manufacturer datasheet.

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MC908KX2MDWE

MC908KX2MDWE - 8-Bit 8MHz MCU, 2KB Flash | NXP

NXP Semiconductors MC908KX2MDWE is an 8-bit HC08 microcontroller operating at 8 MHz, with 2 KB of flash program memory and a 16-SOIC package. It also supports operation from 3.3 V or 5 V, according to the verified distributor and datasheet-index results. The device belongs to the HC08K family, a low-cost branch of the M68HC08 architecture using the CPU08 processor core. A microcontroller is a programmable semiconductor that integrates a processor core, memory, and peripherals into one device. The MC908KX2MDWE occupies the MCU, embedded-controller, and semiconductor levels of the product hierarchy. Its role is to execute embedded control logic from flash memory while providing the mixed-signal and timing resources required by compact control systems. The verified listing identifies the MCU as an 8-bit device with an 8 MHz clock, 2 KB organized as 2K by 8 flash, and a 16-pin SOIC package. The product description also identifies the 908KX2 device and EPP configuration. Exact RAM capacity, pin names, peripheral inventory, voltage limits, current consumption, and programming interface details were not supplied in the verified dataset and therefore must be confirmed in the manufacturer documentation before design release. MC908KX2MDWE uses the high-performance M68HC08 architecture, which the verified description states is object-code upward compatible with M6805, M146805, and M68HC05 families. This compatibility information can assist engineers evaluating legacy firmware, although migration still requires verification of electrical timing, memory maps, peripherals, and tool support. The part is identified as end of life on the NXP product page. Typical legacy embedded uses include appliance control, simple sequencing, compact industrial interfaces, and embedded systems that retain an M68HC08 software base. Its 8 MHz CPU and 2 KB flash suit applications with modest control complexity rather than graphics-intensive, high-connectivity, or real-time signal-processing workloads. Designers should verify the complete pinout, oscillator options, reset behavior, programming signals, and peripheral electrical limits from the manufacturer datasheet. Because the device is end of life, production continuity, firmware tool availability, and last-time-buy planning require direct confirmation with NXP or an authorized source. This page consolidates verified manufacturer and distributor information, lifecycle status, sourcing context, and design cautions for the MC908KX2MDWE. It distinguishes documented facts from missing electrical details and avoids presenting unverified substitute parts as drop-in replacements.

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MC908KX2VDWE

MC908KX2VDWE - 8-Bit HC08 MCU, 2KB Flash, 8MHz | NXP

The NXP (Freescale) MC908KX2VDWE is an 8-bit HC08 microcontroller with 2KB (2K x 8) FLASH program memory, 192 bytes of RAM, and 13 general-purpose I/O lines, housed in a 16-pin SOIC wide-body (0.295 in / 7.50 mm width) package and clocked at up to 8 MHz with an internal oscillator. An 8-bit microcontroller is a single-chip computer that integrates a CPU, program memory, data RAM, I/O ports, and timing peripherals on one die, sitting at the entry level of the microcontroller hierarchy (MCU -> embedded processor -> semiconductor IC). The HC08 family from Motorola/Freescale, now part of NXP Semiconductors, is a CISC-architecture 8-bit MCU line derived from the earlier 68HC05, offering upward-compatible object code, low-power CMOS technology, and in-circuit flash programmability for cost-sensitive embedded control. Key features of the MC908KX2 include its compact 2KB self-programmable flash memory suitable for small control loops, 192 bytes of on-chip RAM, an internal oscillator that eliminates an external crystal in many designs, and operation from a 3.3V or 5V supply. The 13 I/O lines provide enough connectivity for switch sensing, relay or LED driving, and serial communication in minimal-pin-count systems. Technically, the device executes the HC08 CISC instruction set at 8 MHz, built on a low-power CMOS process. The V-grade suffix and wide SOIC (DWE) body indicate the specified operating voltage/temperature variant and 7.50 mm package width. Flash memory allows field reprogramming, an advantage over one-time-programmable ROM parts in the same family. Typical applications include small appliance control, automotive accessory modules, battery chargers, and simple industrial sensing nodes where a small flash MCU with internal clocking reduces bill-of-materials cost. A key design consideration is lifecycle status: this HC08 KX-series part is generally treated as end-of-life by distributors, so new designs should verify long-term supply or consider a drop-in or software-portable successor. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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MC908KX8MDWE

MC908KX8MDWE - 8MHz 8KB Flash 8-Bit MCU | NXP

The NXP Semiconductors MC908KX8MDWE is an 8-bit HC08K-family microcontroller with an 8 MHz internal bus, 8 KB of on-chip flash memory, and a 16-pin SOIC package. According to the distributor and manufacturer listings, the device is a 3.3 V/5 V CISC microcontroller intended for embedded-control applications. Its combination of compact packaging, flash program memory, and HC08-compatible software architecture makes it suitable for legacy industrial, appliance, and control-system designs. An HC08 microcontroller is an 8-bit embedded-processing component within the broader microcontroller and semiconductor hierarchy. It executes firmware from embedded memory and interfaces with sensors, switches, displays, actuators, and communication peripherals through its general-purpose input/output structure. The HC08K family is associated with object-code compatibility across the M6805, M146805, and M68HC05 families, allowing engineers to evaluate legacy firmware portability when maintaining or cloning an existing platform. Verified headline features include an 8 MHz maximum internal bus frequency, 8 KB flash memory, 8-bit data-bus width, and a 16-pin SOIC package. Distributor listings also identify 3.3 V and 5 V operating options. These details define the device as a compact general-purpose controller rather than a high-performance application processor. Its 8 KB program-memory ceiling limits application size, while the 8-bit architecture simplifies peripheral control and can reduce software overhead for straightforward embedded tasks. The HC08K family uses the M68HC08 architecture and supports upward-compatible object code for selected earlier HC08-related families. This compatibility is valuable in long-life products because existing algorithms may be reused, although board-level peripheral mappings, electrical conditions, and toolchain support still require verification. The available evidence does not provide detailed RAM, timer, serial-interface, operating-temperature, or pin-function data, so those parameters must not be inferred. Typical uses include appliance controllers, small motor-control interfaces, keypads, LED indicators, sensor-conditioning interfaces, and legacy industrial equipment. For a new design, the 8 MHz bus and 8 KB flash capacity favor compact control logic rather than communications gateways, graphical interfaces, or data-intensive systems. Firmware developers should verify pin multiplexing, interrupt vectors, timing peripherals, and development-tool support before committing the part to a new PCB. This page synthesizes the verified manufacturer and distributor listings, package information, lifecycle context, and cross-reference findings for MC908KX8MDWE. It also distinguishes confirmed facts from unavailable technical details and avoids presenting unverified cross-brand replacements as drop-in parts.

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MC908LD64IFUE

MC908LD64IFUE - HC08 8-Bit MCU 60KB Flash LCD 64-QFP | NXP

The NXP MC908LD64IFUE is an 8-bit HC08-family microcontroller with 60KB (60K x 8) of on-chip Flash program memory and integrated LCD driver support, housed in a 64-pin QFP (14x14 mm) package. It operates at up to 6 MHz bus clock from an internal oscillator, integrates 2KB of RAM, and provides 39 general-purpose I/O lines, making it suited for low-power human-machine interface (HMI) and appliance applications. The 'LD' device variant specifically targets applications with segment LCD panels by including on-chip LCD voltage generation and segment drive circuitry. An 8-bit microcontroller (MCU) is a single-chip processor with an 8-bit data path, on-chip program and data memory, and integrated peripherals. The MC908LD64IFUE belongs to the HC08 family (hypernyms: 8-bit microcontroller -> microcontroller -> embedded processor -> semiconductor IC), which uses a von Neumann architecture with a common program/data address space and a simplified instruction set optimized for C-language embedded development. Within that family, the 'LD' sub-family adds a built-in LCD driver, eliminating the need for an external segment-driver IC and reducing BOM cost for meter, thermostat, and white-goods designs. Key features of the MC908LD64IFUE include 60KB Flash program memory (in-application reprogrammable via the monitor ROM), 2KB SRAM, an internal oscillator that removes the external crystal requirement, 39 GPIO pins, a multi-channel 10-bit ADC, and a sophisticated on-chip LCD controller supporting up to 144 segment outputs. The integrated low-voltage inhibit (LVI), computer-operating-proper (watchdog) timer, and clock generator modules further reduce external component count for cost-sensitive designs. Architecturally, the HC08 core uses a 16-bit stack pointer with an 8-bit accumulator-based ALU, supports 16-bit BTB signal extensions for LCD timing, and includes a security feature that prevents unauthorized Flash readout. The Flash memory is organized as 60K x 8 with in-circuit programming support through the standard HC08 background debug module (BDM). Typical applications include white-goods control boards, electronic thermostats, simple metering panels, and battery-powered handheld instruments. Its small footprint and integrated LCD drive make it especially attractive for cost-driven HMI designs. When designing with this device, verify the LCD segment count, bias, and frame frequency requirements against the on-chip LCD driver configuration registers. Decoupling and PCB layout should follow standard HC08 guidelines, with short, direct traces from the VDD/VSS pins to bulk and ceramic decoupling capacitors. This page consolidates distributor pricing, drop-in alternative listings, and design notes not present in the standalone manufacturer datasheet, providing additional decision-support context.

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MC908LJ12CFBE

MC908LJ12CFBE - 8-Bit 12KB Flash 52-LQFP MCU | NXP

The NXP Semiconductors MC908LJ12CFBE is an 8-bit HC08 microcontroller with 12KB of Flash program memory, operation up to 8MHz, and a 52-pin LQFP package. It is specified for 3.3V/5V operation and uses the M68HC08 CPU08 architecture. The device is identified as an end-of-life part by NXP, so procurement should focus on verified inventory, lifecycle risk assessment, and any approved lifecycle-extension or replacement plan. An MCU is a semiconductor that integrates a processor core, program memory, data memory, peripherals, and I/O into one device. The MC908LJ12CFBE belongs to the HC08LJ family within the M68HC08 family of low-cost, high-performance 8-bit microcontroller units. Its CPU08 core supports compatibility with the object-code ecosystem associated with M6805, M146805, and M68HC05 families, while its integrated Flash memory supports firmware storage and the security features described by the family documentation. Key verified features include an 8-bit data bus, 12KB of Flash memory, up to 512 bytes of on-chip RAM according to the retrieved product information, and an internal oscillator capable of supporting operation up to 8MHz. The device is identified in distributor listings as an HC08 CISC microcontroller in a 52-pin LQFP package. The available search data does not provide complete peripheral, electrical, timing, or pin-level details, so those values must be confirmed from the manufacturer datasheet before design release. Typical design uses for this device include legacy 8-bit control systems, industrial equipment, simple keypad interfaces, sensor conditioning, actuator control, and compact embedded products whose firmware is already based on the HC08 ecosystem. Since the MCU is marked end of life, engineers should verify software-tool support, programmer availability, production quantities, and any substitute MCU requirements rather than assuming that a similarly packaged microcontroller is electrically or software-compatible. The primary design consideration is lifecycle availability. Before using MC908LJ12CFBE in a new production design, obtain the official NXP datasheet and product-change information, validate the exact 52-LQFP footprint and pin assignments, and confirm that the development toolchain, programmer, and firmware image are still supported. For an existing product, preserve the original footprint and validate the replacement electrically and in production test equipment.

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MC908LJ12CFUER

MC908LJ12CFUER - 8-Bit 8MHz 12KB MCU | NXP | 64-QFP

The NXP Semiconductors MC908LJ12CFUER is an 8-bit HC08 microcontroller operating at up to 8 MHz, with 12 KB of Flash program memory and a 64-QFP package measuring 14 x 14 mm. It is associated with the M68HC08 family and provides 32 I/O pins according to the verified product data. The device is identified as a lead-free MCU variant and is intended for embedded control designs requiring an economical 8-bit processor with integrated serial and timing peripherals. An 8-bit microcontroller is a compact embedded-processing component that executes firmware from nonvolatile program memory and controls digital inputs, outputs, timers, communications, and other peripherals. The HC08 architecture belongs to the M68HC08 microcontroller family and is positioned below higher-bit embedded processors in processing capacity. In the system hierarchy, this component is a microcontroller, or MCU, within the broader semiconductor category, combining a CPU core, memory, peripherals, and I/O in one package. The verified specifications identify 8 KB of Flash memory in one listing as 12 KB (12K x 8), an 8 MHz clock, 32 I/O pins, and connectivity including IrSCI and SPI. Listed peripherals include LCD, low-voltage detection, power-on reset, and PWM functions. These features support applications such as small control panels, display-oriented embedded products, communication modules, and low-cost industrial or consumer equipment. The 64-QFP package also provides a substantial pin count for systems that need multiple discrete signals. The HC08LJ and HC08LK families are described in the verified source material as members of the low-cost, high-performance M68HC08 family of 8-bit microcontroller units. The 8 MHz operating speed and 12 KB Flash capacity position the MC908LJ12CFUER for compact embedded control rather than high-throughput processing. Because the supplied data does not state supply voltage, RAM capacity, timer details, operating temperature, or exact peripheral pin assignments, those values require confirmation in the manufacturer datasheet before a new design is released. Typical design considerations include checking every QFP pin assignment, ensuring the board meets the package land-pattern and thermal requirements, and verifying the firmware toolchain and programming interface. Since the available product listings describe the part as not for new designs in one source, engineers should confirm lifecycle status with NXP or an authorized distributor before committing to production procurement. A replacement must be evaluated for exact pin compatibility, memory requirements, peripheral mapping, and software compatibility rather than relying only on the device name. This page summarizes the verified distributor and technical-source data for MC908LJ12CFUER and distinguishes confirmed parameters from fields requiring datasheet confirmation. It also provides design-focused context for engineers evaluating an 8-bit HC08 MCU in embedded control systems.

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MC908LJ12CPBE

MC908LJ12CPBE - 8-Bit HC08 MCU 12KB Flash 8MHz 64-LQFP | NXP

The NXP MC908LJ12CPBE is a 8-bit HC08 family microcontroller unit (MCU) built on the M68HC08 architecture with 12KB (12K x 8) of on-chip FLASH program memory, operating from a 3.0V to 5.5V supply at up to 8 MHz internal bus clock. Housed in a 64-pin LQFP (10x10 mm) surface-mount package, it integrates up to 768 bytes of RAM, FLASH security, and a broad set of timers, I/O, and serial peripherals typical of the HC08LJ low-cost LCD-oriented family. A microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (ROM/FLASH), data memory (RAM), and peripheral interfaces onto one silicon die. The M68HC08 family is a fully upward-compatible successor to the M6805, M146805, and M68HC05 architectures, allowing legacy assembly code to be reused with new peripherals and lower power. The HC08LJ sub-family specifically targets applications requiring on-chip LCD drivers and a small footprint, sitting within the broader NXP 8-bit MCU hierarchy (8-bit MCU -> microcontroller -> embedded processor -> semiconductor device). Key features include 12KB user FLASH with security lock, up to 768 bytes of RAM, an 8 MHz internal bus, enhanced serial communications interface (ESCI), timer interface modules, keyboard interrupts, and an LCD driver peripheral block. The device supports both background-debug mode (BDM) and monitor-mode in-system programming for cost-effective field updates and OEM code development. The HC08LJ12 die uses a CMOS process with low-power STOP and WAIT modes, regulated by an on-chip low-voltage inhibit (LVI) module that holds the CPU in reset when VDD falls below the operating threshold. Internal peripherals are memory-mapped, served by the CPU08 with 16-bit index/data stack architecture, supporting HCS08-compatible object code in transition paths. Typical applications include white-goods and small-appliance controllers, simple consumer displays with LCD panels, building-automation sensor nodes, and industrial human-machine interface (HMI) sub-modules. The integrated LCD driver and broad I/O count (up to 51 GPIO) suit single-board products where display and keypad are co-located. Pair it with an external EEPROM for parameter storage and a low-cost digital temperature sensor for low-volume equipment. When designing with this part, ensure the VDD decoupling network has a 100 nF ceramic placed within 5 mm of each supply pin and a bulk 4.7 uF tantalum or aluminum polymer on the rail. Use the BDM interface rather than monitor mode for production programming to save FLASH space; reserve monitor mode for engineering debug only.

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MC908LJ24CFQE

MC908LJ24CFQE - 8-Bit HC08 MCU, 24KB Flash, 8MHz, 80-QFP | NXP

The NXP MC908LJ24CFQE is an 8-bit HC08 family microcontroller unit (MCU) with 24KB of FLASH program memory and 768 bytes of RAM, operating at 8MHz internal bus speed and housed in an 80-pin QFP (Quad Flat Package) measuring 14x14 mm. It targets cost-sensitive embedded control applications where the HC08 instruction set, on-chip peripherals, and high code density are sufficient and the application does not require a 32-bit ARM-class core. An 8-bit microcontroller is a single-chip computer that integrates a CPU, program memory (FLASH/ROM), data memory (RAM), and peripheral set on a single silicon die. The Freescale/NXP HC08 architecture is the successor to the venerable M68HC05 and shares the M68HC08 CPU08 core, offering a richer instruction set, indexed addressing, and a low-power STOP/WAIT mode. Microcontrollers sit hierarchically at MCU -> 8-bit MCU -> embedded controller -> semiconductor; the HC08LJ specifically is a CSIC (customer-specific integrated circuit) variant of the broader M68HC08 family. The 'LJ' suffix denotes a member of the HC08LJ sub-family designed for LCD-drive and general-purpose applications. Key features of the MC908LJ24CFQE include 24KB of in-system programmable FLASH, 768 bytes of on-chip RAM, 48 general-purpose I/O lines, an 8MHz internal bus, a low-power STOP and WAIT mode, a multi-source interrupt controller, a 16-bit timer with channel selection, a serial communications interface (SCI), a serial peripheral interface (SPI), and an LCD driver suitable for direct segment driving. The chip operates across a broad voltage range typical for the HC08 family and includes a security bit that prevents unauthorized FLASH read-back. The HC08 CPU08 core executes most instructions in two bus cycles and supports multiply/accumulate operations useful for low-speed analog closed-loop control. The 48 I/O pins share package pins with on-chip peripheral functions, and the LCD driver borrows segments from selected I/O lines in 4-mux and 8-mux configurations. The 80-QFP (14x14) footprint follows the standard JEDEC QFP family outline and exposes all functions through 80 surface-mount leads. Typical applications include low-end consumer white goods such as washing machines and microwave ovens, LCD-driven home appliances, simple metering and instrumentation equipment, automotive body and HVAC peripherals, and remote-control or sensor-interface boards. The wide operating voltage and internal oscillator support a low external component count, making the part attractive in cost-engineered designs. Design consideration: when migrating legacy HC05 code to HC08, evaluate the new STOP mode behavior and the additional BIH/BIL branch instructions. Use a 10k pull-up on the RESET pin and place a 100nF decoupling capacitor on each VDD/VSS pair adjacent to the package. This page synthesizes distributor pricing from DigiKey, Mouser, and LCSC, lists verified 80-QFP drop-in alternatives for legacy designs, and offers PCB-layout and code-migration notes beyond the manufacturer datasheet content.

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MC908LJ24CPBE

MC908LJ24CPBE - 8-bit HC08 MCU, 24KB Flash, 8MHz, 64-LQFP | NXP

The NXP MC908LJ24CPBE is a member of the low-cost, high-performance M68HC08 Family of 8-bit microcontroller units (MCUs), specifically from the HC908LJ sub-family. It integrates 24KB of on-chip Flash memory, operates from a 3.3V or 5V supply, and is housed in a 64-pin LQFP package with an integrated LCD driver peripheral. An 8-bit microcontroller (MCU) is a single-chip computer that contains a CPU core, program memory (Flash/ROM), data memory (RAM), and a set of on-chip peripherals such as timers, A/D converters, communication interfaces, and I/O ports. The HC08 core is a CISC (Complex Instruction Set Computer) architecture with an enhanced M68HC08 central processor unit (CPU08), placing this device in the hierarchy of: 8-bit MCU -> HC08 CISC -> M68HC08 Family -> Microcontroller -> Embedded IC -> Semiconductor. The HC08 architecture is widely used in industrial control, automotive body electronics, and consumer appliances where deterministic behavior and ease of programming are prioritized over raw throughput. Key features of the MC908LJ24CPBE include 24KB of Flash program memory with in-circuit programming capability, 8 MHz maximum internal bus frequency, an integrated LCD driver with up to 32 segment lines, multiple 16-bit timer channels, a 10-bit A/D converter, and a built-in serial communications interface (SCI) and serial peripheral interface (SPI). The wide 3V to 5.5V operating voltage range and integrated LCD bias generation simplify the design of battery-powered and mains-powered metering or appliance front panels. The HC08LJ family is based on NXP's customer-specific integrated circuit (CSIC) design strategy, allowing memory and peripheral configurations to be tailored for cost-sensitive applications. The CPU08 runs an extensive instruction set optimized for compiled C code and assembler, with built-in multiply and accumulate-friendly addressing modes. The device includes a configurable external interrupt block and a computer operating properly (COP) watchdog for safety-critical applications. Typical applications include single-phase electricity meters, white goods user interfaces, medical monitoring devices with segment LCDs, point-of-sale terminals, and industrial control panels. The integrated LCD driver eliminates the need for an external display controller, reducing BOM cost in HMI designs. When designing with this part, note that the EPP suffix denotes a specific flash revision and the LQFP-64 package requires a 1.27 mm lead pitch footprint. Decoupling should follow standard HC08 practice with one 100nF ceramic capacitor per VDD/VSS pair, placed within 5 mm of the pins. This page synthesizes distributor pricing, last-time-buy notes for the discontinued part, drop-in alternatives, and practical design notes not found on a single manufacturer datasheet page.

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MC908LK24CPKR2

MC908LK24CPKR2 - 8-Bit 8MHz 24KB Flash MCU | NXP | LQFP-80

The NXP MC908LK24CPKR2 is an 8-bit HC08/S08 embedded microcontroller with an 8 MHz operating frequency, 24 KB of flash memory, and an 80-pin LQFP package measuring 12 mm by 12 mm. It is designed for embedded control applications requiring deterministic 8-bit processing, on-chip program memory, and a high pin count for mixed-signal, communication, and peripheral connectivity. The verified distributor listing identifies the device as an HC08 microcontroller and specifies 24 KB (24K x 8) flash storage. A microcontroller is a semiconductor device that integrates a CPU core, memory, and peripherals into one programmable component. The HC08/S08 family belongs to the broader embedded processor hierarchy: 8-bit microcontroller → embedded microcontroller → embedded semiconductor. Compared with discrete logic controllers, this device provides reusable firmware, configurable peripherals, and a compact control platform for industrial equipment, consumer products, and legacy embedded platforms. The key verified parameters are the 8-bit CPU, 8 MHz operating frequency, and 24 KB flash memory. The 80-LQFP package provides 80 physical pins, allowing the design to expose more peripheral and signal connections than a small-outline package. The 12 mm by 12 mm package dimensions are explicitly identified in distributor data. Other electrical limits, RAM capacity, timer counts, analog specifications, pin functions, operating voltage, and temperature limits are not provided in the verified data and therefore require manufacturer-documentation review. Typical applications include small industrial controllers, appliance control boards, instrumentation interfaces, and legacy embedded systems. An HC08 device is appropriate when the application benefits from 8-bit control simplicity, deterministic firmware execution, and a compact single-chip integration level. The 80-pin package may help reduce the need for external logic when several inputs, outputs, communications, or analog-connected resources are required. Before layout or firmware migration, verify the complete pinout, memory map, peripheral assignments, clock requirements, and electrical limits in the official MC908LK24CPKR2 datasheet. Do not treat distributor package labels as a substitute for the manufacturer’s electrical and pin-function documentation. This page summarizes verified sourcing information and clearly identifies parameters that still need confirmation. This product data combines distributor identification, verified MPN specifications, sourcing context, package details, and engineering-oriented design guidance. It does not invent unavailable RAM, voltage, timing, or peripheral specifications.

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