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MC68HC908JL3ECFA - 8-Bit HC08 MCU, 4KB Flash, 48-LQFP | NXP
MC68HC908JL3ECFA

MC68HC908JL3ECFA - 8-Bit HC08 MCU, 4KB Flash, 48-LQFP | NXP

The NXP MC68HC908JL3ECFA is an 8-bit microcontroller unit (MCU) from the M68HC08 Family of low-cost, high-performance CSIC-design microcontrollers, featuring 4KB of on-chip FLASH program memory, 128 bytes of RAM, and an 8 MHz CPU in a 48-pin LQFP package. What is a microcontroller? A microcontroller (MCU) is a single-chip computer that integrates a CPU core, volatile and non-volatile memory, and programmable I/O peripherals on one IC. The 8-bit MCU category sits in the lowest tier of processing power and is preferred in cost-sensitive embedded designs where simple deterministic control is needed - typically appliances, simple sensors, automotive body electronics, and remote controls. The M68HC08 architecture is a successor to the earlier M68HC05 family and is widely used in cost-optimized industrial and consumer products. MCUs in this class typically integrate peripherals such as timers, PWM channels, low-voltage reset, and basic communication modules on-chip, eliminating the need for external logic. Key features of the MC68HC908JL3ECFA include: 4 KB (4K x 8) FLASH program memory, 128 bytes of on-chip RAM, 23 programmable I/O lines, integrated LED drivers, a Low-Voltage Detect (LVD) circuit, Power-On Reset (POR), and Pulse-Width Modulation (PWM) channels. According to the verified distributor listing, the core runs at 8 MHz, the device ships in a 48-pin LQFP (7 x 7 mm) surface-mount package, and is in the obsolete lifecycle state. The 'E' suffix in the part number indicates the enhanced HC08 core with FLASH memory rather than the original ROM/EPROM variants. The architecture is built on the enhanced M68HC08 central processing unit with a 16-bit stack pointer and index register, plus up to 16-bit internal bus operation on selected peripherals. The chip integrates a trimmed internal clock generator, eliminating the need for an external crystal in many cost-sensitive designs. The FLASH memory supports in-circuit programming through a built-in ROM bootloader, allowing firmware updates via a single-wire or SCI interface. Typical applications for the MC68HC908JL3ECFA include consumer appliances (washing-machine controllers, microwave ovens, rice cookers), simple sensor and actuator interfaces, battery chargers, household fans, low-cost remote controls, and edge-of-system glue-logic replacement. The 23 I/O count and integrated LED driver make the part especially attractive for human-machine-interface panels that must drive multiple LEDs cheaply. Designers should plan for migration: with this part being obsolete and last-time-buy, any new design should consider the modern S08 successor family (such as MC9S08QG8) as a long-term substitute, validating compatibility at the register/peripheral level. This page synthesizes the verified distributor data, drop-in alternatives from the same HC08 family, and PCB-layout design notes not found in the manufacturer's original datasheet - source citations included on every parameter row.

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MC68HC908JL3ECP - 8MHz HC08 8-bit MCU, 4KB Flash, 28-PDIP | NXP
MC68HC908JL3ECP

MC68HC908JL3ECP - 8MHz HC08 8-bit MCU, 4KB Flash, 28-PDIP | NXP

The NXP MC68HC908JL3ECP is a member of the low-cost, high-performance M68HC08 family of 8-bit microcontroller units (MCUs), operating from a 4KB Flash program-memory array and an 8MHz internal bus, housed in a 28-pin PDIP through-hole package. It features an HC08 core running at up to 8MHz, 4KB (4K x 8) of on-chip Flash memory, 128 bytes of on-chip RAM, and 23 general-purpose I/O pins for interfacing to external circuitry. On-chip peripherals include LED drive capability, a Low-Voltage Detector (LVD), Power-On Reset (POR), PWM channels, and a multi-channel 8-bit Analog-to-Digital Converter, making the part a self-contained control engine for cost-sensitive applications. Background Knowledge: An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash or ROM), data memory (RAM), and peripheral functions (timers, ADC, I/O, communication ports) on one piece of silicon. The M68HC08 family is an enhanced, fully object-code-compatible extension of the earlier M68HC05 architecture, designed around Freescale/NXP's Customer-Specified Integrated Circuit (CSIC) methodology. In the broader taxonomy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC. The MC68HC908JL3ECP sits in the cost-sensitive, low-power slice of that family tree, targeting appliances, automotive body electronics, and consumer devices. Key features include 4KB of re-programmable Flash for in-application updates, an internal clock generator eliminating external crystals in many designs, and robust on-chip debug support via the built-in MON08 or background debug mode interface. The HC08 CPU delivers 78 basic instructions with multiple addressing modes, executed through a 16-bit stack pointer and an X-index register that simplifies pointer arithmetic in C and assembly routines. Typical applications include white-goods control boards, low-cost appliance user interfaces, automotive interior lighting and accessory controllers, battery chargers, and small PWM-driven motor drivers. The combination of 23 I/O lines and on-chip PWM allows direct LED or MOSFET bridge drive without external glue logic in many designs. When designing with this device, plan for the 28-pin PDIP footprint and verify supply-voltage tolerance during EEPROM/Flash programming cycles. Always consult the manufacturer datasheet for the latest electrical characteristics and ordering options, since this part is now mature and may be approaching end-of-life status.

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MC68HC908JL8CDW - 8-Bit 8MHz HC08 MCU 8KB Flash 28-SOIC | NXP
MC68HC908JL8CDW

MC68HC908JL8CDW - 8-Bit 8MHz HC08 MCU 8KB Flash 28-SOIC | NXP

The NXP (formerly Motorola/Freescale) MC68HC908JL8CDW is a member of the low-cost, high-performance M68HC08 Family of 8-bit microcontroller units (MCUs), housed in a 28-pin SOIC (DW) package. The M68HC08 Family is based on the customer-specified integrated circuit (CSIC) design strategy, integrating 8KB of FLASH program memory, 256 bytes of RAM, an 8-bit HC08 core running at 8MHz internal bus speed, an SCI serial interface, 23 general-purpose I/O lines, plus on-chip peripherals including LED drivers, PWM, low-voltage detect (LVD), and power-on reset (POR). A microcontroller (MCU) is a single-chip computer containing a CPU, memory, and programmable I/O peripherals, designed for embedded control applications. The HC08 architecture sits in the taxonomy: microcontroller -> embedded processor -> 8-bit MCU -> CISC MCU -> HC08 family, and is fully object-code-compatible with the earlier M68HC05 family while adding enhanced addressing modes and instructions per the CPU08 reference manual. Microcontrollers like the MC68HC908JL8CDW are typically deployed in cost-sensitive, low-to-medium complexity embedded products. Key features of the MC68HC908JL8CDW include 8KB FLASH program memory, 256 bytes of on-chip RAM, an 8MHz maximum bus frequency with a 3.3V/5V dual-voltage supply, 23 bidirectional I/O pins with high-current sink/source capability suitable for direct LED drive, a Serial Communications Interface (SCI) for UART communication, and 16-bit timer with PWM. The device supports in-system programming via a standard background debug mode (BDM) and includes a low-voltage detect (LVD) and power-on reset (POR) for robust supply supervision in industrial environments. The CPU08 core uses a Von Neumann architecture with a 16-bit stack pointer, 16-bit index register (H:X), and a CISC instruction set with 90+ base instructions plus 200+ addressing-mode variants. The 8MHz internal bus supports 125ns minimum instruction cycle, sufficient for simple control loops, sensor sampling, and user-interface tasks. The FLASH memory supports 10,000 program/erase cycles typical and is byte-erasable. The device operates from 3.0V to 5.5V and the suffix -CDW denotes the industrial temperature grade (-40C to +85C). Typical applications include appliance control boards, simple motor control, battery chargers, lighting ballasts, security keypads, and consumer white goods. The 23 high-current I/O pins and on-chip LED drive make it particularly suitable for human-machine interface (HMI) panels with seven-segment displays, status LEDs, and keypad scanning. The integrated SCI and PWM enable direct connection to power-conversion stages and isolated serial links. When designing with this device, pay attention to the FLASH endurance budget: 10,000 program/erase cycles is the typical rating, which constrains bootloader designs that frequently rewrite firmware. Decouple VDD/VSS with a 100nF ceramic capacitor placed within 5mm of the supply pins. Use the BDM interface for in-circuit programming rather than the slower SCI bootloader, which requires application firmware cooperation. This page synthesizes distributor pricing, lifecycle status, drop-in compatible same-family variants, and practical design notes for engineers evaluating the MC68HC908JL8CDW for legacy or new designs.

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MC68HC908JL8CFA - 8KB Flash 8MHz 8-bit HC08 MCU | NXP
MC68HC908JL8CFA

MC68HC908JL8CFA - 8KB Flash 8MHz 8-bit HC08 MCU | NXP

The NXP MC68HC908JL8CFA is an 8-bit microcontroller unit (MCU) in the low-cost, high-performance M68HC08 family, featuring 8KB of on-chip Flash program memory, 256 bytes of RAM, and a 32-pin LQFP (7x7 mm) package with 26 general-purpose I/O pins. Operating at up to 8MHz internal bus frequency, it integrates an 8-bit ADC, PWM channels, LED drivers, low-voltage detection (LVD), power-on reset (POR), and an SCI serial communications interface in a single chip. An 8-bit microcontroller is a self-contained computing device that integrates a CPU, memory, and programmable I/O peripherals on a single die. The M68HC08 family sits within the broader 8-bit MCU hierarchy (8-bit MCU -> microcontroller -> embedded controller -> semiconductor), offering code compatibility with the legacy M6805, M146805, and M68HC05 architectures while adding modern on-chip peripherals. The MC68HC908JL8 uses an enhanced CPU08 core, known for its compact CISC instruction set, low power dissipation, and deterministic interrupt response suitable for cost-sensitive embedded designs. Key features of the MC68HC908JL8CFA include 8KB (8K x 8) of Flash program memory supporting in-application reprogramming, 256 bytes of on-chip RAM, 26 multifunctional I/O lines, an internal oscillator that eliminates the need for an external crystal in many designs, and a wide operating voltage range that supports both 3.3V and 5V systems. The integrated ADC, PWM, and SCI peripherals enable direct sensor and actuator interfacing without external bridge chips. The MC68HC908JL8 architecture uses the customer-specified integrated circuit (CSIC) design strategy, allowing NXP to deliver memory and peripheral combinations tailored to high-volume applications. The CPU08 core provides a 16-bit stack pointer and index register, BCD arithmetic instructions, and low-power wait/stop modes that reduce quiescent current for battery-powered or energy-conscious products. Typical applications for the MC68HC908JL8CFA include consumer white-goods control boards, small home appliances, automotive body electronics sub-modules, simple sensor hubs, low-end motor control, and industrial control panels where its combination of Flash, ADC, PWM, and SCI reduces BOM cost. It is also widely used in educational kits and legacy equipment retrofits that require pin compatibility with older M68HC05 designs. When designing with this MCU, allocate decoupling capacitance near the VDD/VSS pairs and observe the Flash programming voltage and timing diagrams in the manufacturer's datasheet. The internal oscillator simplifies BOM but is less accurate than an external crystal; designs with strict serial baud-rate tolerance should add an external resonator. Many newer NXP designs (S08, S12, Kinetis) offer lower power and more peripherals for new projects. This page synthesizes distributor pricing, drop-in alternative MPNs, and practical design notes not collected in a single place on the manufacturer datasheet, helping engineers select, qualify, and source the MC68HC908JL8CFA quickly.

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MC68HC908JL8CFAE - 8KB Flash 8-bit HC08 MCU | NXP | 32-LQFP
MC68HC908JL8CFAE

MC68HC908JL8CFAE - 8KB Flash 8-bit HC08 MCU | NXP | 32-LQFP

The NXP MC68HC908JL8CFAE is an 8-bit HC08-family microcontroller with 8KB of on-chip Flash memory, an 8-bit ADC, and a CPU08 core running at up to 8 MHz internal bus frequency, housed in a 32-pin LQFP (7x7 mm) surface-mount package. It belongs to the low-cost, high-performance M68HC08 family of 8-bit microcontroller units originally developed by Freescale (now NXP). The device integrates 8KB Flash, 256 bytes of RAM, and a 13-channel 8-bit ADC on-chip, making it a true single-chip solution for cost-sensitive embedded control. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, volatile and non-volatile memory, and a configurable set of peripheral interfaces. Within the broader semiconductor taxonomy, an 8-bit MCU sits under microcontroller -> embedded processor -> semiconductor device. The HC08 architecture is the successor to the long-lived HC05 family: it is object-code compatible with the HC05 instruction set, but adds additional addressing modes, a slightly higher-performance bus interface, and improved debug support, all while preserving the ultra-low cost point that made the HC05 ubiquitous in appliances, automotive body electronics, and consumer devices. Key features of the MC68HC908JL8CFAE include 8KB of Flash program memory (8K x 8), 256 bytes of on-chip RAM, an internal bus frequency of up to 8 MHz (typically derived from an internal oscillator or external crystal), an integrated 13-channel 8-bit ADC with multiple input options, multiple timers (TIM1 with two channels), a serial communications interface (SCI), and an internal 32 kHz oscillator for low-power modes. The device operates from a single 3 V to 5.5 V supply (5 V nominal in the part suffix 'F' variants), and includes a 32-pin LQFP package option for space-constrained designs. The CPU08 core at 8 MHz provides roughly 1.5 MIPS throughput, well-suited to interrupt-driven control loops, simple state machines, and basic serial-protocol handling. The integrated ADC performs a conversion in approximately 16 ADC clock cycles and supports both single-shot and continuous conversion modes. Brownout detection, low-voltage reset, and a stop/wait low-power mode round out the feature set, enabling battery-backed and energy-conscious designs. Typical applications for the MC68HC908JL8CFAE include household appliance control (white goods, washing machines, microwave ovens), automotive body modules (interior lighting, simple motor control, sensor reading), industrial sensor interfaces, consumer remote controls, low-end security panels, and legacy field-replacement designs where the HC08 instruction set is already deployed in production firmware. When designing with this part, verify the voltage suffix (CFAE = 5 V) matches the system's supply rail; the JL family also ships as 3 V variants. A decoupling capacitor of 0.1 µF placed as close as possible to the VDD/VSS pins is mandatory, and unused ADC channels should be tied to a defined voltage level rather than left floating. This page consolidates distributor pricing, lifecycle status, drop-in package-compatible alternatives, and practical design notes not found in the manufacturer datasheet alone.

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MC68HC908JL8CFAE-FR - 8-bit 8KB Flash MCU 32-LQFP | NXP
MC68HC908JL8CFAE-FR

MC68HC908JL8CFAE-FR - 8-bit 8KB Flash MCU 32-LQFP | NXP

The NXP MC68HC908JL8CFAE-FR is an 8-bit HC08 microcontroller with 8KB of Flash program memory, 256 bytes of RAM, and a 13-channel 8-bit ADC, supplied in a 32-pin LQFP (7x7 mm) package. According to the NXP datasheet for the MC68HC908JL8 series, the device integrates the enhanced M68HC08 CPU (CPU08) running at up to 8 MHz internal bus frequency from a 2.7 V to 5.5 V supply, with 23 general-purpose I/O lines, two 16-bit timers, an SCI serial port, and a KBI keyboard interrupt module. An 8-bit microcontroller (MCU) is a single-chip computer that integrates an 8-bit CPU core, program and data memory, I/O peripherals, and timers onto one silicon die. The HC08 family belongs to the M68HC08 taxonomy of 8-bit MCUs from NXP (formerly Freescale/Motorola), which itself descends from the Freescale HCS08 broad-market product family. Positioned in the embedded microcontroller hierarchy, the HC08 sits below 32-bit ARM Cortex-M devices and above 4-bit microcontrollers in capability while maintaining a low-cost, low-power profile ideal for cost-sensitive embedded designs. Key features of the MC68HC908JL8 include on-chip FLASH with in-circuit programming, an internal oscillator with software-trimmable bus frequency, an analog watchdog on the ADC, low-voltage reset (LVR), and a low-power STOP/WAIT mode. The integrated 8-bit ADC with 13 input channels provides up to 8-bit resolution for sensor reading and battery monitoring applications, while the SCI (Serial Communications Interface) supports asynchronous serial communication up to the bus clock rate. The M68HC08 CPU is object-code-compatible with the earlier M68HC05 family, easing migration of legacy firmware. The CPU08 features an enhanced instruction set with a 16-bit index register, stack pointer, and program counter, plus additional addressing modes compared to the HC05. The device includes a security feature that protects on-chip FLASH from unauthorized read-out, supporting secure firmware IP protection for OEM designs. Typical applications include remote keyless entry (RKE) transmitters, low-end automotive body controllers, white goods and appliance control, lighting controllers, security keypads, battery chargers, and small industrial sensor interfaces. The low-power STOP mode draws microampere-level current, making the MCU well suited to battery-powered and energy-harvesting designs where quiescent drain matters. When designing with the MC68HC908JL8, ensure that the supply decoupling network uses a 100 nF ceramic capacitor placed within 5 mm of the VDD/VSS pair, and add a 10 uF bulk capacitor at the board input. The internal oscillator accuracy is adequate for asynchronous serial communication up to modest baud rates, but designs requiring tight UART timing should use an external crystal where the package pinout permits it. The IC has a maximum junction temperature of 150 C and an operating temperature range suitable for industrial and consumer environments. This page synthesizes distributor pricing, verified drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone, structured for engineers selecting or replacing this MCU in production designs.

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MC68HC908JL8CSP - 8MHz 8-bit HC08 MCU 8KB Flash 32-SDIP | NXP
MC68HC908JL8CSP

MC68HC908JL8CSP - 8MHz 8-bit HC08 MCU 8KB Flash 32-SDIP | NXP

The NXP MC68HC908JL8CSP is an 8-bit HC08 microcontroller unit (MCU) with 8KB of on-chip Flash program memory and 256 bytes of RAM, operating at up to 8 MHz from a wide supply range and housed in a 32-pin SDIP package. It is a member of the low-cost, high-performance M68HC08 family of 8-bit microcontrollers built on the customer-specified integrated circuit (CSIC) design strategy. An 8-bit microcontroller (MCU) is a single-chip computer containing an 8-bit central processing unit, on-chip program memory, working RAM, and a set of peripheral modules. Within the broader taxonomy it sits at the lowest end of embedded computing - sub-32-bit MCU -> microcontroller -> embedded processor -> semiconductor IC. The HC08 family from NXP/Freescale (formerly Motorola) is one of the longest-running 8-bit MCU lines and remains in production for cost-sensitive, long-lifecycle industrial and appliance designs. Key features of the MC68HC908JL8CSP include a 26-pin general-purpose I/O set, an SCI (serial communications interface), a multi-channel timer with PWM outputs, an LED driver, a low-voltage detect (LVD) block, and power-on reset (POR). It runs at a maximum bus frequency of 8 MHz from a 3 V to 5.5 V supply, and supports in-system Flash programming via the standard HC08 monitor ROM. The device uses the enhanced M68HC08 CPU core (CPU08) with a 16-bit stack pointer, a 16-bit index register (H:X), and a flat 16-bit memory model that maps Flash, RAM and I/O registers into a single 64 KB linear address space. This architecture gives the HC08 strong C-compiler support relative to older 6800/6805 cores while retaining the small code footprint that makes it attractive for low-cost embedded products. Typical applications include appliance control (white goods, HVAC blowers), simple motor control (small brushed DC and BLDC pre-drivers), LED display drivers and signage, low-end remote/keypad controllers, and battery-powered metering nodes. Its wide supply tolerance and on-chip analog (LVD) make it well-suited to industrial-grade, 5 V-only boards. When designing with this MCU, budget at least one crystal or resonator plus a decoupling cap per VDD pin pair, and reserve the IRQ pin and monitor ROM entry conditions for in-circuit programming and in-application firmware updates. Plan Flash endurance (typically 1k to 10k cycles per block) and watchdog refresh timing into your firmware architecture from day one. This page synthesizes distributor stock, same-family pin-compatible alternatives, and application guidance not found in the bare manufacturer datasheet - useful when you need to drop-in replace a hard-to-find HC08 part on an existing 32-SDIP board.

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MC68HC908JL8CSPE - 8KB Flash 8-bit HC08 MCU | NXP | DIP-32
MC68HC908JL8CSPE

MC68HC908JL8CSPE - 8KB Flash 8-bit HC08 MCU | NXP | DIP-32

The NXP MC68HC908JL8CSPE is an 8-bit M68HC08 family microcontroller with 8KB of Flash program memory and 256 bytes of RAM, housed in a 32-pin SDIP (Skinny Dual In-line Package) enclosure. It operates from a 2.7V to 5.5V supply at an internal bus speed of up to 8 MHz, integrating on-chip peripherals for low-cost embedded control applications. The 'CSPE' suffix designates the windowed/ceramic-lid package variant used for development and engineering samples. What is an 8-bit microcontroller? An 8-bit microcontroller (MCU) is a single-chip computer that fetches, decodes, and executes 8-bit-wide instructions, combining a CPU, RAM, Flash/ROM program memory, and peripheral set on a single silicon die. It sits hierarchically between a microprocessor (CPU only) and a System-on-Chip (SoC), typically serving as the lowest-cost, lowest-power computation node in embedded electronics. M68HC08 parts use a customer-specified integrated circuit (CSIC) design strategy with an HC08 core superseding the legacy HC05 instruction set. Key features include 8 KB on-chip Flash with in-system programming support, 256 bytes of on-chip RAM, a 16-channel 8-bit ADC, two 16-bit dual-channel timer interface modules, a serial communications interface (SCI), and a serial peripheral interface (SPI). The part is also equipped with a real-time interrupt, computer operating properly (COP) watchdog, low-voltage inhibit (LVI), and POR reset blocks for robust system bring-up. The HC08 CPU executes most instructions in 2 to 5 bus cycles at 8 MHz, yielding roughly 1 MIPS at full speed. Architecturally, the JL8 family belongs to NXP/Freescale's HC08JL/JK sub-line with a unified memory map, vectored interrupts, and a flexible internal oscillator trimmable via factory-programmed Flash trim values. The 32-SDIP footprint simplifies breadboarding and legacy harness compatibility for industrial control modules designed around through-hole pinouts. Typical applications include appliance control boards (white goods, HVAC damper drivers), automotive body electronics (window lift, lighting controllers), low-cost sensor read-out boards, and industrial control front-ends interfacing to power switches through the ADC, PWM, and SCI peripherals. The 32-SDIP form factor is preferred where socketed field service is desirable. When designing with this part, pay attention to the LVI/POR behavior during power ramp and ensure the oscillator stabilization delay is observed before code execution begins; CSIC mask revisions may also change peripheral channel assignments, so check the silicon rev against the datasheet Rev. 3.1 (March 2005) when porting code. This page synthesizes official NXP documentation, distributor pricing, drop-in upgrade alternatives from the same HC908 family, and practical design guidance not found in the manufacturer datasheet alone.

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MC68HC908JL8MFAE - 8KB Flash 8-Bit HC08 MCU | NXP 32-LQFP
MC68HC908JL8MFAE

MC68HC908JL8MFAE - 8KB Flash 8-Bit HC08 MCU | NXP 32-LQFP

The NXP MC68HC908JL8MFAE is an 8-bit HC08-family microcontroller with 8 KB of on-chip FLASH program memory, 256 bytes of RAM, an 8 MHz CPU core, an 8-channel 8-bit ADC, and 26 general-purpose I/O lines, housed in a 32-pin LQFP (7x7 mm) package. The part targets low-cost, high-performance embedded control in consumer, appliance, and industrial segments where the legacy M68HC08 tool chain and peripheral set are still actively maintained. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (FLASH/ROM), data memory (RAM), and peripherals (ADC, timers, communications, GPIO) on one die. Within the broader taxonomy, the MC68HC908JL8MFAE is an 8-bit MCU, belonging to the HC08 sub-family of Freescale/NXP's M68HC08 line, which itself falls under the larger category of microcontrollers -> microprocessors -> embedded processors -> semiconductors. The 'JL' suffix marks the cost-reduced, low-pin-count branch; the '08' indicates FLASH rather than ROM/EPROM. Key features include 8 KB FLASH (8K x 8), 256 bytes RAM, an internal bus frequency of 8 MHz, an 8-bit ADC with multiple input channels, one PWM channel, an SCI (Serial Communications Interface) for UART, and an integrated LED driver, low-voltage detect (LVD), and power-on reset (POR). The part supports both SPI-style synchronous and SCI-style asynchronous serial communication, and offers mask-ROM/FLASH security via the standard HC08 security byte. The architecture centers on a HC08 CPU core with a 16-bit stack pointer, 16-bit index register (H:X), and a fixed 8 MHz internal bus from the trimmable internal oscillator. The 8-bit ADC shares input pins with selected GPIOs, and the single PWM output is suitable for LED dimming or simple motor speed control in low-cost BLDC or DC fan implementations. Typical applications include appliance controllers (washing machines, microwave ovens), LED lighting drivers with dimming, low-cost consumer toys, smart-meter peripherals, and any cost-sensitive 8-bit design that can leverage the mature HC08 instruction set. The 32-LQFP package provides an easy hand-solder footprint for prototyping while still being compatible with automated assembly lines. Designers should note that this part is approaching end-of-life in NXP's roadmap and is supplied as Not For New Designs in some channels, with remaining inventory being a finite drop of legacy and authorized stock. Existing designs should validate the current longevity statement before committing to long-life programs. This page synthesizes distributor pricing, drop-in compatible same-package alternatives, and practical design notes not found in the manufacturer datasheet.

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MC68HC908KX2CP - 8-Bit 8 MHz Flash MCU | NXP
MC68HC908KX2CP

MC68HC908KX2CP - 8-Bit 8 MHz Flash MCU | NXP

The NXP Semiconductors MC68HC908KX2CP is an 8-bit HCMOS microcontroller operating at 8 MHz, with 2 KB of embedded Flash memory, in a 16-pin through-hole DIP package. The verified distributor data identifies the device as part of the HC08 family, with a 16-PDIP package and 2K x 8 Flash organization. Its combination of an internal clock source, serial communications interface, analog-to-digital converter, and timebase module makes it suitable for compact embedded-control systems that require more capability than a basic 8-bit controller. The MC68HC908KX2 belongs to the 8-bit microcontroller category, a microcontroller class that integrates a processor core, memory, I/O, timers, and communication peripherals on one semiconductor device. Within the broader embedded-systems hierarchy, it is an HCMOS microcontroller, a semiconductor component intended for control, measurement, and automation products. The 16-DIP package is mechanically straightforward for through-hole assembly, prototyping, repair, and legacy equipment maintenance. Verified source data confirms the 8-bit architecture, 8 MHz operating frequency, 2 KB Flash memory, 2K x 8 organization, and 16-PDIP package. The NXP product-brief search result also identifies an internal clock generator, serial communications interface, analog-to-digital converter, and timebase module as important family features. These peripherals can reduce external component count in applications requiring periodic sensing, timing, serial communication, or basic control outputs. Detailed electrical limits, memory map, ADC resolution, I/O ratings, and timing parameters were not supplied in the retrieved data and require confirmation from the manufacturer datasheet. Typical uses include small industrial controllers, sensor-interface modules, appliance-control boards, laboratory instruments, communications equipment, and legacy embedded products. The internal clock generator can simplify designs where an external crystal is not necessary, while the SCI supports serial links to sensors, host computers, or service equipment. The ADC and timebase module make the device useful for systems that must monitor analog inputs and perform periodic actions without a larger processor. Designers should verify the exact pinout, supply voltage, oscillator options, memory map, peripheral multiplexing, and programming method in the MC68HC908KX2CP datasheet before layout or firmware development. The 16-pin DIP footprint is useful for replacement work, but it is not a surface-mount package. This page distinguishes the verified 8 MHz MC68HC908KX2CP from the separately listed MC68HC908KX2CP-MO listing, which appears under a 32 MHz description and should not be assumed to be electrically identical. This page combines verified distributor specifications, the NXP 68HC908KXPB product-brief reference, and practical selection guidance for engineers evaluating a legacy 8-bit embedded controller. Because the supplied web results contain conflicting or incomplete details for related suffixes, verify the exact ordering code and manufacturer datasheet before committing to a purchase or replacement.

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MC68HC908KX8CDW - 8KB Flash 8MHz 8-bit HC08 MCU | NXP
MC68HC908KX8CDW

MC68HC908KX8CDW - 8KB Flash 8MHz 8-bit HC08 MCU | NXP

The NXP MC68HC908KX8CDW is an 8-bit HC08 CISC microcontroller featuring 8KB of Flash program memory, 192 bytes of RAM, and a maximum internal bus frequency of 8MHz, housed in a 16-pin SOIC (0.300 inch) package. It targets cost-sensitive embedded control applications requiring on-chip non-volatile memory and a small footprint. According to the NXP datasheet, the device integrates 13 general-purpose I/O pins, an internal oscillator, and a 4-channel 8-bit ADC. An HC08 microcontroller is a member of the Freescale/NXP M68HC08 family of 8-bit CISC microcontrollers, which evolved from the earlier M68HC05 architecture while preserving object-code compatibility for many instructions. The HC08 family occupies a place in the broader taxonomy of microcontrollers (MCU -> 8-bit MCU -> CISC MCU -> HC08), and HC08 parts are widely deployed in automotive body electronics, appliance controls, and industrial sensor interface designs where deterministic interrupt response and small memory footprints matter more than raw compute throughput. Key features of the MC68HC908KX8CDW include 8KB of in-application-reprogrammable Flash, 192 bytes of on-chip RAM, an internal oscillator that eliminates the need for an external crystal in many designs, and a peripheral set tailored to low-pin-count applications. The 16-pin SOIC package provides a compact 0.300-inch body suitable for hand-solderable prototypes and high-volume surface-mount assembly. The integrated 4-channel 8-bit ADC reduces bill-of-materials cost for analog sensor interfaces such as thermistors or potentiometers. From an architectural standpoint, the HC08 CPU delivers single-cycle instruction execution at the internal bus frequency and supports a compact instruction set with BCD arithmetic and multiply instructions, simplifying code density for control-oriented firmware. The integrated Flash supports in-circuit programming through a background debug mode, enabling field firmware updates without removing the device from the board. Compared with later ColdFire and S08 derivatives, the HC08 retains the smallest die area and lowest unit cost in the NXP 8-bit portfolio. Typical applications include appliance control boards, HVAC thermostat interfaces, automotive accessory modules, security keypads, low-end remote controls, and battery chargers. The MC68HC908KX8CDW fits naturally in designs where a low-pin-count MCU must read a few analog sensors, drive a small display or relay, and communicate over a simple UART link without requiring a larger 32-bit Cortex-M device. When designing with this part, ensure that the supply voltage stays within the rated VDD range and that the internal oscillator accuracy is acceptable for UART timing without an external crystal. For designs requiring higher analog accuracy or more ADC channels, consider migrating to an S08 derivative such as the MC9S08AC60 or a Cortex-M0 device in a compatible footprint. This page synthesizes distributor pricing, drop-in same-package alternatives drawn from the HC908KX family, and practical design notes not found in the manufacturer datasheet alone.

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MC68HC908LB8CDWE - 8-Bit 8MHz MCU 8KB Flash 20-SOIC | NXP
MC68HC908LB8CDWE

MC68HC908LB8CDWE - 8-Bit 8MHz MCU 8KB Flash 20-SOIC | NXP

The NXP (Freescale) MC68HC908LB8CDWE is an 8-bit HC08 microcontroller IC operating at up to 8 MHz, with 8KB (8K x 8) of FLASH program memory, 128 bytes of RAM, and 18 general-purpose I/O lines, housed in a 20-SOIC (0.295 inch, 7.50 mm width) surface-mount package. It integrates on-chip peripherals including PWM outputs, a Low-Voltage Reset (LVR) module, and Power-On Reset (POR), making it a compact single-chip control solution. An 8-bit microcontroller (MCU) is a complete computing system on a single chip, combining a processor core, program memory, data memory, and peripherals. MCUs sit at the device level of the embedded-system hierarchy: microcontroller -> embedded processor -> semiconductor IC. The HC08 family is Freescale's enhanced successor to the classic 68HC05 architecture, object-code upward compatible and widely used in cost-sensitive embedded control. Key features of the MC68HC908LB8CDWE include the HC08 CISC core executing at 8 MHz with efficient instruction throughput, 8KB in-system-programmable FLASH program memory eliminating masked-ROM lead times for low-volume designs, and 18 configurable I/O pins providing near-total pin utilization of the 20-pin package. On-chip LVR and POR circuits guarantee deterministic startup behavior during brown-out and power-up events without external supervisor ICs. Technically, the part implements the HC08 core with 16-bit addressing, a stack pointer, and indexed addressing modes suited to C compilation. The FLASH memory supports field reprogramming, which simplifies firmware updates in serviced products. PWM capability supports lamp dimming, small motor drive, and buzzer tone generation directly from the MCU pins. Typical applications include small appliance control, automotive body accessories, LED and lamp ballast control, and low-cost industrial sensing nodes where the PWM outputs and flash reprogrammability reduce system BOM count. When designing with this MCU, note that the part is listed as obsolete: NXP no longer manufactures it, and current channel supply comes from remaining distribution stock and authorized aftermarket sources such as Rochester Electronics. New designs should target the MC9S08 or MC9S12 families. This page synthesizes distributor pricing, lifecycle status, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a complete sourcing and design picture for this legacy 8-bit microcontroller.

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MC68HC908LB8CPE - 8KB Flash 8-Bit HC08 MCU | Freescale | 20-DIP
MC68HC908LB8CPE

MC68HC908LB8CPE - 8KB Flash 8-Bit HC08 MCU | Freescale | 20-DIP

The Freescale Semiconductor (NXP) MC68HC908LB8CPE is an 8-bit HC08-family microcontroller featuring 8KB of FLASH program memory, 128 bytes of RAM, and an 8MHz internal oscillator, housed in a 20-pin PDIP through-hole package. Designed for low-cost embedded control, it integrates 18 general-purpose I/O lines, an internal oscillator that eliminates the external crystal, and on-chip FLASH supporting in-application reprogramming for field-upgradable firmware. An 8-bit microcontroller is a single-chip computer built around an 8-bit data path and a Harvard or von Neumann architecture optimized for deterministic, low-power embedded control. Within the broader hierarchy, the MC68HC908LB8CPE belongs to the HC08 sub-family -> 8-bit MCU family -> microcontroller category -> embedded processor -> semiconductor. The HC08 architecture succeeded the HC05 with a FLASH-based program store, an enhanced instruction set including a multiply instruction, and improved peripherals, while retaining the legacy HC05 toolchain for migration. The 'LB8' suffix indicates a low-pin-count variant tailored for space-constrained human-interface and lighting-balast applications. Key features include an internal 8MHz oscillator (trimmable for accuracy), 18 bidirectional I/O pins with programmable pull-ups, an enhanced serial communications interface (ESCI), a 16-bit timer with input-capture and PWM output channels, and a keyboard interrupt module for low-power wake-on-key. The on-chip FLASH supports byte-erase and block-erase operations over a typical endurance of 10,000 cycles, while 128 bytes of RAM back the C stack and data variables. At the architecture level the MC68HC908LB8CPE uses a von Neumann bus with a 16-bit program counter, an 8-bit accumulator plus index register, and a hardware multiply (MUL) instruction that executes in 5 bus cycles - faster than software loops. The internal oscillator simplifies BOM by removing two crystal pads, and the FLASH controller supports in-circuit programming through the standard background debug mode (BDM) interface for in-system firmware updates. Typical applications include dimmable fluorescent lamp ballasts, low-end household appliances such as washing-machine user-interface boards, fan and pump controllers, remote-control transmitters, and small industrial control panels. The 18 I/O pins are sufficient to drive a multiplexed keypad plus a 7-segment display without external expanders. In a 20-DIP through-hole footprint the part supports hand-prototyping and socket replacement, which is convenient for legacy service and educational labs. Designers moving to surface mount should evaluate the MC68HC908LB8CFD (SOIC-20) or migrate forward to the MC9S08 family for a modern pin-compatible upgrade path with active production. This page synthesizes distributor pricing, drop-in same-footprint alternatives, and practical engineering design notes not found in the manufacturer datasheet - useful for engineers maintaining legacy HC08 designs and qualifying second sources.

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MC68HC908LB8MDWE - 8KB Flash 8MHz HC08 MCU 20-SOIC | NXP
MC68HC908LB8MDWE

MC68HC908LB8MDWE - 8KB Flash 8MHz HC08 MCU 20-SOIC | NXP

The NXP MC68HC908LB8MDWE is a member of the M68HC08 family of 8-bit microcontroller units (MCUs), featuring 8KB of on-chip Flash program memory, 128 bytes of RAM, and 18 general-purpose I/O lines. The device operates from a 5V supply at up to 8MHz internal bus clock and is housed in a 20-pin SOIC wide-body package (7.50mm). The part is specifically optimized for low-cost, low-power applications such as remote keyless entry (RKE) transmitters, simple appliance controls, and battery-powered sensor nodes. An 8-bit microcontroller (8-bit MCU) is a single-chip computer that integrates an 8-bit CPU core, program memory, working RAM, and peripheral interfaces (timers, ADC, I/O, communications) into one package. The M68HC08 family is part of the broader MCU hierarchy: 8-bit microcontroller -> microcontroller -> embedded processor -> semiconductor IC. The HC08 is a CISC architecture that succeeded the HC05, adding a higher-throughput instruction set while keeping the same programming model, which simplified migration for existing HC05 firmware bases. Key features of the MC68HC908LB8MDWE include an 8-channel 8-bit ADC with linear successive approximation, a multi-channel timer with PWM capability, an internal oscillator that reduces external BOM, and on-chip peripherals including a Low-Voltage Reset (LVR), Power-On Reset (POR), and PWM module. The integrated peripherals reduce system cost by eliminating external glue logic, and the 8KB Flash supports in-application reprogramming for field upgrades. The device is fabricated on Freescale/NXP's mature HC08 process and uses an internal oscillator that eliminates one or two external crystal components compared to HC05 designs. The architecture balances cost-sensitive 8-bit throughput with deterministic interrupt response for event-driven control loops, and the part is qualified for consumer and industrial environments where 5V tolerance and ESD robustness are required. Typical applications include remote keyless entry (RKE) key fobs, simple motor and valve controllers, low-end consumer appliances, security keypads, IR/RF transmitters, and battery-powered sensor interface boards. The 18 I/O pins are sufficient to drive a small keypad, an LED indicator, a piezo sounder, and a transmitter FET directly. When designing with this device, ensure the supply decoupling network uses a 100nF ceramic capacitor close to the VDD/VSS pins and that the reset pin is held low during power ramp-up. Note that the part is marked obsolete by some distributors (NXP/Freescale) and may have long lead times - plan inventory accordingly or evaluate the cross-referenced alternatives listed on this page. This page synthesizes distributor pricing, parametric specifications, drop-in alternatives, and design notes not consolidated on any single manufacturer or distributor page.

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MC68HC908LD64IFU - 8-Bit 6MHz MCU, 60KB Flash | Freescale
MC68HC908LD64IFU

MC68HC908LD64IFU - 8-Bit 6MHz MCU, 60KB Flash | Freescale

The Freescale Semiconductor MC68HC908LD64IFU is an 8-bit microcontroller operating at 6 MHz, with 60 KB of Flash memory, and housed in a 64-QFP package measuring 14 x 14 mm. It belongs to the M68HC08 family and is based on the CPU08 core. The device combines embedded Flash program memory with MCU-oriented peripherals for embedded control, appliance control, industrial interfaces, and compact consumer equipment. A microcontroller is a programmable semiconductor that integrates a CPU, memory, and peripherals into one component. In the hierarchy of electronic devices, this MCU is an 8-bit microcontroller, a member of the M68HC08 family, and an example of an embedded processor used inside a larger control system. Its compact package and integrated resources reduce the need for external logic while supporting deterministic embedded-control firmware. The verified distributor listing identifies the MC68HC908LD64IFU as an HC08 MCU with an 8-bit architecture, 6 MHz operating frequency, 60 KB Flash, and a 64-QFP package. The official NXP data sheet identifies MC68HC908LD64 as part of the low-cost, high-performance M68HC08 family using the enhanced M68HC08 CPU08. These facts establish the device as a general-purpose embedded-control platform rather than a digital signal processor or analog power component. Because the supplied web data does not include the complete electrical characteristics, all unspecified voltage, current, timing, memory-map, peripheral, and temperature details are marked as data-needed rather than inferred. Designers should use the NXP MC68HC908LD64 data sheet for pin names, register definitions, clock behavior, programming guidance, and electrical limits before schematic capture or PCB release. Typical uses include LCD-oriented control systems, appliance interfaces, small industrial controllers, and embedded products requiring an 8-bit CPU with embedded program storage. The 64-QFP format provides 64 physical terminals and is suited to board-level integration where a moderate pin count is preferable to a very small package. The IFU suffix and exact ordering code must be preserved during procurement because package, temperature, and device options may differ across related M68HC08 variants. For new designs, verify supply status, programming-tool compatibility, memory programming voltage, reset behavior, and peripheral availability against the manufacturer documentation. Do not substitute a similarly named MCU solely by function: CPU architecture, pin mapping, memory organization, interrupt vector layout, and firmware toolchain compatibility must all be confirmed. This page combines the verified distributor identification, official family information, and practical sourcing context without inventing unprovided specifications.

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MC68HC908LJ12CFB - 8-bit HC08 MCU, 12KB FLASH, 52-LQFP | NXP
MC68HC908LJ12CFB

MC68HC908LJ12CFB - 8-bit HC08 MCU, 12KB FLASH, 52-LQFP | NXP

The NXP (formerly Freescale/Motorola) MC68HC908LJ12CFB is an 8-bit HC08 microcontroller unit with 12KB of embedded Flash program memory and 512 bytes of RAM, housed in a 52-pin LQFP (10x10 mm) surface-mount package. Built on the M68HC08 family customer-specified IC (CSIC) design strategy, it integrates an 8 MHz CPU, an on-chip LCD driver, a 10-bit multi-channel ADC, two PWM channels, an SPI, and an infrared-capable serial communications interface (IRSCI), all behind an internal oscillator and POR/LVD supervisory chain. An HC08 microcontroller is a high-performance 8-bit MCU family that evolved from the earlier M68HC05 architecture, adding a broader instruction set, faster execution, and a more memory-rich program model. Within the broader taxonomy it sits as: microcontroller -> 8-bit MCU -> HC08 family -> M68K lineage -> embedded control IC. The 68HC908LJ12 specifically targets applications that benefit from on-chip LCD drive and a small ADC, which is why the part is widely used in metrology, instrumentation, appliance control, and consumer display electronics. Key features of the MC68HC908LJ12CFB include 20 general-purpose I/O pins, an integrated LCD driver sized to support typical segment displays used in handheld instrumentation, brownout (LVD) and power-on reset (POR), and user-selectable internal oscillator modes that eliminate the need for an external crystal in many designs. Security is provided by a Flash lock mechanism that prevents unauthorized read-out of the on-chip program memory. The CPU core is the standard HC08, executing instructions from internal Flash and supporting BCD and signed arithmetic operations useful for sensor readout and display handling. Memory is organized as 12KB Flash for code and a 512-byte RAM for scratchpad data, while configuration bytes in the Flash array set clock source, oscillator trimming, and security lock. The integrated 10-bit ADC with multiple input channels allows direct digitization of analog signals such as battery voltage or sensor outputs. Typical applications include portable instruments with LCD readout, thermostats and HVAC controls, appliance user interfaces, low-cost remote-control units, and consumer products that benefit from internal LCD drive combined with HC08 software reuse. Connectivity peripherals (SPI, IRSCI) allow easy links to companion RF, sensor, or display driver chips. When designing with this part, confirm oscillator mode settings against the actual system clock used at start-up, since the internal oscillator trimming register directly affects timing-critical peripherals. Always check Flash lock bits before programming production units, because incorrect lock configuration can lock out further in-system programming. This page consolidates distributor pricing, drop-in alternatives within the HC08 family, and practical design notes that complement the manufacturer datasheet MC68HC908LJ12 (Freescale technical data).

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MC68HC908LJ24CFQ - 8-Bit HC08 MCU 24KB Flash 8MHz 80-QFP | NXP
MC68HC908LJ24CFQ

MC68HC908LJ24CFQ - 8-Bit HC08 MCU 24KB Flash 8MHz 80-QFP | NXP

The NXP MC68HC908LJ24CFQ is an 8-bit HC08 family microcontroller with 24KB of Flash program memory, an 8MHz CPU core, and an integrated LCD driver, housed in an 80-pin QFP package (14x14mm). The device is part of the MC68HC908LJ family with on-chip peripherals including I2C, SPI, IRSCI (Infrared Serial Communications Interface), LCD driver, Low-Voltage Detect (LVD), Power-On Reset (POR), and Pulse Width Modulation (PWM). What is an HC08 microcontroller? The HC08 is NXP (formerly Freescale/Motorola) Freescale's legacy 8-bit microcontroller architecture, descended from the original 6800 and 6809 8-bit CPUs. An HC08 MCU combines a CPU core, Flash program memory, RAM, and a fixed set of on-chip peripherals (timers, communication interfaces, ADCs) into a single chip. Within the broader semiconductor taxonomy, an HC08 MCU sits under: microcontroller -> 8-bit MCU -> embedded microcontroller -> semiconductor IC. Key features of the MC68HC908LJ24CFQ include 48 I/O pins for external device interfacing, an 8MHz internal bus clock, 24KB (24K x 8) of embedded Flash for program storage, an integrated LCD driver capable of driving glass directly (a signature feature of the LJ family), and the IRSCI module for infrared serial communications. The 80-QFP package offers a 14x14mm body with 0.65mm pitch, providing ample pin count for parallel bus applications and segmented LCD panels. The architecture uses a von-Neumann bus where program and data share the same address space, with a security feature that prevents unauthorized Flash read-out. The 8MHz bus rate supports instruction execution at roughly 4 MIPS, suitable for low-to-mid complexity control loops. The integrated LCD driver is the standout differentiator versus general-purpose 8-bit MCUs, eliminating the need for an external LCD controller chip in HMI designs. Typical applications include white-goods control panels, simple industrial HMI terminals with LCD displays, metering equipment, and IR remote-control base stations. The combination of LCD, IRSCI, I2C, and SPI makes the LJ family particularly well-suited for low-cost graphical keypad/temperature-control products. When designing with this part, note that it is now in Obsolete lifecycle status per distributor listings, so designers should evaluate modern replacements such as the NXP S08 or Kinetis E-series families for new designs. Existing designs can still be sourced from authorized distributors and aftermarket channels. This page synthesizes distributor pricing, lifecycle status, and drop-in alternatives not consolidated in the manufacturer datasheet alone.

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MC68HC908LJ24CFU - 24KB Flash 8-Bit MCU LCD Driver QFP-64 | NXP
MC68HC908LJ24CFU

MC68HC908LJ24CFU - 24KB Flash 8-Bit MCU LCD Driver QFP-64 | NXP

The NXP MC68HC908LJ24CFU is a 24 KB Flash, 8-bit HC08-family microcontroller unit (MCU) integrating an on-chip LCD driver, real-time clock (RTC), and 10-bit ADC in a 64-pin QFP (14x14 mm) package. It runs the M68HC08 CPU08 core at up to 8 MHz bus clock, delivering 24 KB (24K x 8) of embedded Flash program memory, 768 bytes of RAM, and 256 bytes of EEPROM-like Flash for non-volatile data, making it a member of NXP/Freescale's customer-specified integrated circuit (CSIC) M68HC08 family. What is an 8-bit microcontroller? An 8-bit MCU is a self-contained computer-on-a-chip that integrates a CPU, program memory (Flash/ROM), data memory (RAM), and peripheral set (timers, ADC, communications, I/O) onto a single silicon die. An 8-bit data path means the ALU processes 8 bits per instruction cycle; the HC08 CPU uses an enhanced HC08 core with a 16-bit index register and stack pointer for C-friendly addressing. Within the broader taxonomy, the MC68HC908LJ24CFU sits as: microcontroller -> 8-bit MCU -> HC08 family -> LJ24 sub-family (LCD + RTC + ADC + Flash). The 'LJ' suffix denotes integrated segment-LCD driver plus RTC, distinguishing it from the LK24 variant. Key features include 24 KB Flash, 768 bytes RAM, 256 bytes EEPROM (Flash-based), an on-chip LCD driver supporting up to 27x4 segments (typical), a 10-bit successive-approximation ADC with up to 8 channels, two 16-bit timers, an SCI (UART) channel, an SPI interface, an RTC with 32.768 kHz crystal support, and multiple low-power STOP/WAIT modes. According to the NXP MC68HC908LJ24 datasheet, the part operates from 2.7 V to 5.5 V and supports industrial-grade -40C to +85C ambient. Architecturally, the LJ24 shares the CPU08 enhanced core used across the entire M68HC08 family, with the same MUL/DIV instructions, BCD support, and indexed addressing modes. The integrated LCD controller generates all segment and common waveforms in hardware, with software-configurable frame frequency and bias; the RTC operates from an external 32.768 kHz crystal and maintains time/countdown under STOP. The CSIC philosophy means many peripherals are configurable through a system integration module that controls internal routing and chip-select mapping. Typical applications include battery-powered utility metering (electricity/water/gas), point-of-sale terminals, industrial control HMIs with segment displays, security keypads, medical instruments with LCD readouts, and automotive interior lamps or HVAC panels. The combination of segmented LCD, RTC, and low-power STOP/WAIT makes the LJ24 particularly attractive for any mains- or battery-backed appliance that needs a glass LCD readout, a time-of-day clock, and a slow ADC-driven measurement loop. When designing with this part, ensure that the LVR (low-voltage reset) voltage is configured above the minimum supply (2.7 V) and that the segment-LCD bias resistors are correctly sized for the target Vlcd. Use the CONFIG register to mask LVR/Timer-clock options during reset. For battery-backed RTC use, the 32.768 kHz crystal must be specified with the correct load capacitance (typically 12.5 pF). This page synthesizes distributor pricing, drop-in same-brand alternatives, and practical design notes that complement - not replicate - the manufacturer datasheet, giving engineers a single source for sourcing and selection decisions.

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MC68HC908LJ24CPB - 8-bit HC08 MCU, 24KB Flash, 8MHz | NXP
MC68HC908LJ24CPB

MC68HC908LJ24CPB - 8-bit HC08 MCU, 24KB Flash, 8MHz | NXP

The NXP (formerly Freescale / Motorola) MC68HC908LJ24CPB is an 8-bit HC08-family microcontroller built around the enhanced CPU08 core, integrating 24KB of FLASH program memory, 768 bytes of RAM, and a 6-channel 10-bit analog-to-digital converter in a 64-pin LQFP (10x10 mm) package. It runs at up to 8 MHz internal bus frequency, supports I2C, SPI, and an infrared SCI (IRSCI) serial interface, and is targeted at consumer, industrial, and LCD-segmented display applications in the HC908 LJ series. What is an HC08 microcontroller? An HC08 (also written HCS08 / HC08) is a family of 8-bit microcontrollers originally introduced by Motorola's Semiconductor Products Sector and continued by Freescale and NXP. They belong to the broader M68k lineage of microcontrollers, sit under the umbrella of microcontrollers, and ultimately fall within the category of embedded processors and semiconductors. The HC908 sub-family added FLASH program memory, an enhanced CPU08 core, and on-chip peripherals aimed at replacing older ROM/EPROM-based HC05 designs while keeping the M68HC05 instruction set backward-compatible. Key features of the MC68HC908LJ24CPB include a wide operating voltage range of 3.0V to 5.5V, low-power STOP and WAIT modes, an internal clock generator with options for external crystal or resonator operation, programmable pull-ups on selected ports, a keyboard interrupt module with up to 8 wake-up pins, and a configurable LCD driver interface. The 64-pin LQFP provides 56 usable I/O lines plus dedicated power, ground, oscillator, and reset pins. The 6x10-bit ADC supports both single-conversion and continuous-scan modes with internal or external trigger. Architecturally, the LJ24 variant of the HC908 family is positioned as a 'LCD-segmented display controller' variant. The CPU08 core fetches 16-bit instructions from a single FLASH array, supports a 16-bit stack pointer, and includes a low-power STOP recovery mode. The integrated LCD driver, together with the 6-channel ADC and three serial peripherals, makes the part suitable for mixed-signal human-interface products where cost and pin count matter more than raw CPU throughput. Typical applications for the MC68HC908LJ24CPB include white-goods and appliance front-panel controllers, automotive climate and lighting modules, industrial metering and process-control HMI boards, and consumer remote controls. In each case, the part's combination of 24KB FLASH, 768B RAM, and integrated ADC removes the need for external program storage and an external ADC in space-constrained PCB layouts. When designing with this MCU, reserve pin 1 (IRQ) as a non-maskable interrupt input if you need an emergency stop or watchdog kick path. Place the 0.1uF VDD decoupling capacitor within 5 mm of the package power pin, and route the OSC1/OSC2 traces symmetrically to avoid duty-cycle distortion on the internal clock. For new designs, also verify long-term NXP stock availability before committing to the HC908 platform. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, including cross-references to the LJ24VPB and LJ24MPB package variants identified in NXP community support threads.

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MC68HC908LJ24CPB-FR 8-Bit 8MHz 24KB MCU | NXP
MC68HC908LJ24CPB-FR

MC68HC908LJ24CPB-FR 8-Bit 8MHz 24KB MCU | NXP

The NXP MC68HC908LJ24CPB-FR is an 8-bit, 8 MHz M68HC08-family microcontroller with 24 KB of Flash memory in a 64-LQFP 10 x 10 mm package. It belongs to the low-cost, high-performance M68HC08 family and uses the enhanced M68HC08 CPU08 core. The LJ24 device family integrates Flash memory and multiple on-chip modules to reduce the need for external components while retaining a compact 8-bit control architecture. The MC68HC908LJ24CPB-FR combines a CPU08 processor, 24 KB of Flash program memory, on-chip oscillator connections, and integrated peripheral functions in one microcontroller package. The verified product listing identifies the device as an 8-bit microcontroller operating at 8 MHz, with 24K x 8 Flash memory and a 64-LQFP package. The family is designed for embedded control, appliance interfaces, motor-related control, measurement, and other systems requiring deterministic low-cost integration. An MCU is a semiconductor that combines a processor core, memory, and peripherals on one integrated circuit. In the hierarchy, MCU is a microcontroller, a semiconductor, and an embedded processing device. The M68HC08 family provides a simple 8-bit execution environment rather than a high-performance 32-bit or RISC architecture. Its integrated Flash memory supports firmware storage, while on-chip peripherals reduce system-level component count compared with a discrete processor design. The verified NXP datasheet describes the MC68HC908LJ24 as part of a family based on the customer-specified integrated circuit design strategy. Its CPU08 core and range of memory sizes and package options make the family suitable for embedded products where cost, compactness, and peripheral integration are important. The 8 MHz operating speed provides a straightforward control platform for digital sequencing, sensor interfaces, and supervisory functions. Typical uses include industrial equipment, consumer appliances, motor-control modules, building controls, and compact embedded instruments. A designer should select the MCU according to the complete family datasheet, peripheral requirements, memory needs, pin availability, oscillator arrangement, and operating conditions. The -FR ordering suffix identifies the exact NXP ordering configuration, while CPB identifies the 64-LQFP package variant. For a new PCB, the package footprint, pin assignment, power requirements, decoupling, clock implementation, programming method, and unused-pin treatment must be verified in the manufacturer datasheet. For an existing design, do not substitute the MCU solely by matching the device name; confirm pin compatibility, voltage limits, timing, memory organization, peripheral functions, and software support. This product data consolidates the verified NXP family description, distributor identification, package information, memory and clock details, sourcing links, and practical replacement guidance. It is intended to help engineers locate the correct MCU and assess whether a proposed alternative is truly suitable for an existing design.

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MC68HC908LJ24CPK - 8MHz 8-bit HC08 MCU, 24KB FLASH, LCD | NXP
MC68HC908LJ24CPK

MC68HC908LJ24CPK - 8MHz 8-bit HC08 MCU, 24KB FLASH, LCD | NXP

The NXP MC68HC908LJ24CPK is an 8-bit HC08-family microcontroller with 24KB of on-chip FLASH program memory, an 8MHz CPU core, and an integrated LCD driver, housed in an 80-pin LQFP (PK suffix) package measuring 12x12 mm. It is part of the long-running M68HC08 micro-controller family originally introduced by Motorola and now maintained by NXP, designed for cost-sensitive embedded control with on-chip peripherals that reduce external component count. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (FLASH/ROM), data memory (RAM), and peripheral functions such as timers, communication controllers, ADCs, and I/O into one device. The HC08 is an 8-bit CISC core family succeeding the HC05; it executes one byte per instruction cycle and is widely used in appliance control, metering, and human-machine-interface (HMI) boards where low cost and deterministic behavior matter more than raw throughput. Key features include 24KB FLASH program memory, 768 bytes of RAM, an 8MHz internal bus, integrated LCD driver (typically up to 4x32 segments on this family), an 8-channel 8-bit ADC, two timer/PWM modules, and serial interfaces including SCI and SPI. The on-chip LCD controller removes the need for an external driver chip, simplifying BOM and PCB area in HMI designs. The MC68HC908LJ24CPK uses the standard HC08 CPU with a 16-bit stack pointer, hardware multiply (MUL) via the accumulator, and the well-documented HC08 instruction set. FLASH memory supports in-system programming through the standard MON08 debug/monitor interface and a serial bootloader mode, enabling field firmware updates without external programming hardware. Typical applications include white-goods and appliance control panels (washing machines, microwave ovens, dishwashers), HVAC thermostats, metering displays, medical-device HMIs, industrial operator panels, and consumer electronics with segment-LCD displays. The integrated LCD driver is the primary reason designers choose the LJ-variant over the JL-variant. When designing with this device, plan the VDD/VSS decoupling per HC08 layout guidelines (one 100nF per supply pair, bulk cap near the regulator) and ensure the LCD segment pins are routed away from switching traces to avoid ghost-segment artifacts. Confirm the chosen PJ/PG suffix matches your code size, since FLASH variants with the same die are available in different memory densities. This page synthesizes distributor stock levels, parametric specifications, and engineering alternatives that go beyond the raw manufacturer datasheet, helping sourcing and design engineers evaluate the part for new designs and for legacy board replacements.

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MC68HC908LJ24CPK-FR 8-Bit 8MHz 24KB Flash MCU | NXP
MC68HC908LJ24CPK-FR

MC68HC908LJ24CPK-FR 8-Bit 8MHz 24KB Flash MCU | NXP

The NXP MC68HC908LJ24CPK-FR is an 8-bit M68HC08 embedded microcontroller with an 8 MHz CPU, 24 KB of Flash program memory, and an 80-pin 12 x 12 mm low-profile quad flat package. It combines a CPU08 core with 48 I/O lines and embedded serial, timing, analog, LCD, and communication peripherals for compact control systems. The verified distributor listing identifies the device as an HC08 8-bit, 8 MHz, 24 KB Flash microcontroller in an 80-LQFP package. A microcontroller is a semiconductor that integrates a processor core, memory, and peripherals into one programmable control device. In the system hierarchy, the MC68HC08 belongs to the 8-bit microcontroller family and uses the CPU08 architecture. This places it above general-purpose embedded processors in simplicity and below more powerful 16-bit or 32-bit processors in computational capacity. The MCU executes firmware from Flash and uses its integrated peripherals to read sensors, operate actuators, communicate through serial links, and control embedded equipment. The verified data establishes a CPU08 8-bit core operating at 8 MHz, 24 KB of 24K x 8 Flash memory, 48 I/O lines, and connectivity including I2C, SPI, and IRSCI. A secondary technical listing identifies LCD, low-voltage detection, power-on reset, and PWM peripherals. These functions reduce the need for external components in cost-sensitive embedded designs while retaining dedicated hardware for common control tasks. The CPU08 architecture is designed for low-cost, high-performance 8-bit control. Its bus-oriented peripheral integration allows software and hardware modules to share the MCU without requiring a separate external processor for routine control tasks. Flash memory retains programmed firmware without removing the device, while 48 I/O lines provide substantial interface flexibility for switches, displays, sensors, relays, and external logic. Typical uses include industrial control panels, appliance controllers, building equipment, meter interfaces, keyboard and display systems, low-voltage embedded controllers, and communication-assisted sensor nodes. Peripheral suitability depends on the exact operating conditions and pin requirements, which should be checked against the complete NXP datasheet before design release. For a new PCB, preserve the verified 80-pin, 12 x 12 mm package geometry and assign programming, reset, clock, ground, communications, LCD, and I/O pins according to the datasheet. For a legacy repair, verify flash contents, clock settings, port states, interrupt configuration, and peripheral pin multiplexing; an electrically similar MCU is not necessarily a functional replacement.

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MC68HC908LK24CFQ - 8-Bit 8MHz 24KB Flash MCU 80-QFP | NXP
MC68HC908LK24CFQ

MC68HC908LK24CFQ - 8-Bit 8MHz 24KB Flash MCU 80-QFP | NXP

The NXP MC68HC908LK24CFQ is an 8-bit HC08-family microcontroller unit (MCU) featuring 24KB of on-chip FLASH program memory and 768 bytes of RAM, housed in an 80-pin QFP (14x14 mm) surface-mount package. Operating at 8 MHz from a 3V to 5.5V supply, it integrates an LCD driver, two PWM channels, an LVD/POR supervisor, and a rich set of serial interfaces including I2C, SPI, and an infrared SCI (IRSCI) for remote-control applications. An 8-bit microcontroller is a single-chip computer built around an 8-bit data path CPU, on-chip program and data memory, and integrated peripherals. Within the broader semiconductor taxonomy, an MCU sits in the embedded processing hierarchy between a microprocessor (which requires external memory and peripherals) and an ASIC (which has no programmable CPU). The HC08 family from NXP belongs to the M68HC08 line of 8-bit MCUs, a customer-specified integrated-circuit (CSIC) design strategy that shares the CPU08 core across many pin- and function-compatible variants. Key features include 40 GPIO lines, a 24KB (24K x 8) FLASH program store, 768 x 8 bytes of SRAM, an integrated LCD driver, two PWM timers, a low-voltage detection (LVD) and power-on reset (POR), and a 12-channel 8-bit ADC. The device runs at 8 MHz across the full 3V to 5.5V supply range, supports -40C to +85C industrial environments, and offers a robust peripheral mix for HMI and metering designs. The MC68HC908LK24 uses the M68HC08 CPU08 core with a 16-bit stack pointer and index register, plus a 64KB linear address space. Its on-chip FLASH supports in-system programming via a background debug mode (BDM) interface, simplifying prototyping and field updates. The integrated LCD driver can directly drive up to 192 segments, making the part well-suited to multi-digit display modules. Typical applications include single-phase electricity meters, multi-function HVAC thermostats, washing-machine and dishwasher HMIs, weighing scales, blood-pressure monitors, and consumer remote-control units. The integrated IRSCI plus LCD driver make it especially attractive for appliance and metering designs where PCB real estate is tight. When designing with this MCU, ensure BDM pin routing is preserved on the PCB for in-circuit firmware development. Decouple VDD/VSS pairs with 100 nF ceramic capacitors placed within 5 mm of each pin pair, and follow NXP application note AN2305 for LCD bias network selection. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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MC68HC908LK24CFU - 8MHz 8-bit HC08 MCU 24KB Flash 64-QFP | NXP
MC68HC908LK24CFU

MC68HC908LK24CFU - 8MHz 8-bit HC08 MCU 24KB Flash 64-QFP | NXP

The NXP MC68HC908LK24CFU is an 8-bit HC08 family microcontroller delivering 8MHz CPU clock speed with 24KB of on-chip FLASH program memory and 768B RAM, housed in a 64-pin QFP (14x14 mm) surface-mount package. Built around the M68HC08 core architecture, the device integrates peripherals tailored for LCD-segment-driven human-machine interface designs, including a built-in LCD driver supporting multiple display configurations. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O on one semiconductor die. Within the semiconductor taxonomy, an MCU belongs to the integrated circuit family, sits under microcontrollers and processors, and is the smallest compute element commonly embedded in consumer, industrial, and appliance products. The HC08 family is the 8-bit successor to the HC05 line, featuring a higher-performance CPU08 core while retaining the popular Freescale/NXP 8-bit toolchain. Key features include an 8-bit CPU core, 24KB FLASH with security, an LCD driver with multiple bias modes, multiple timer/PWM modules, an SCI (UART) and SPI serial interface, ADC channels, and a low-power STOP/WAIT mode. The 64-QFP package provides 64 I/O-capable pins suitable for keyboard scanning and segment driving. The device operates from 3.0V to 5.5V, with industrial-grade temperature range typically supporting -40C to +85C. The HC08 core uses a von Neumann-style address bus with separate FLASH and RAM address spaces, an accumulator-based ALU, and an X-index register for efficient C compiler support. The integrated LCD driver offloads segment refresh from the CPU, enabling low-duty-cycle software loops and longer battery life in metering and appliance applications. Typical applications include white-goods control boards (washing machines, microwaves, dishwashers), smart metering front panels, small industrial HMI panels, point-of-sale terminals, and LCD-segment remote controls. The HC908LK24 specifically targets applications where LCD-segment display driving eliminates the need for an external driver IC. When designing with this part, allocate at least 4KB of FLASH for an in-application reprogramming buffer and verify the LCD bias resistor network against the chosen glass. Ensure the VDD/VSS decoupling loop is short to avoid ADC noise coupling into the LCD charge pump. This page synthesizes distributor availability, parametric comparison vs. alternatives, and design notes for the HC908LK24 not consolidated in the manufacturer datasheet.

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