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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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MC68HC908LK24CPB - 24KB Flash LCD MCU 8MHz | NXP
MC68HC908LK24CPB

MC68HC908LK24CPB - 24KB Flash LCD MCU 8MHz | NXP

The NXP MC68HC908LK24CPB is a member of the low-cost, high-performance M68HC08 Family of 8-bit microcontroller units, integrating 24 KB of FLASH program memory with a hardware LCD driver and PWM/timer peripherals in a 64-pin LQFP (10x10 mm) package. An 8-bit microcontroller (MCU) is a single-chip computer that integrates an 8-bit CPU core, program memory (FLASH/ROM), data memory (RAM), and peripheral modules such as timers, communication interfaces, and analog blocks. Within the broader taxonomy, MCUs belong to the microcomputer class of microcontrollers -> embedded processors -> semiconductors. The M68HC08 family is part of NXP/Freescale's HC08 product hierarchy, designed for cost-sensitive consumer and industrial applications where low system cost, on-chip FLASH, and integrated peripherals reduce the total bill of materials. Key features of the MC68HC908LK24CPB include a CPU08 core running at 8 MHz bus speed, 24 KB of FLASH with 768 bytes of RAM, an integrated LCD driver supporting segmented displays, and connectivity peripherals including I2C, SPI, and IRSCI. The part also includes on-chip Low-Voltage Detect (LVD), Power-On Reset (POR), and PWM channels, making it well suited to battery-powered and human-machine-interface products. The MC68HC908LK24CPB architecture is built on the enhanced M68HC08 CPU with a customer-specified integrated circuit (CSIC) design strategy. The 64-pin LQFP provides 40 general-purpose I/O pins and exposes the LCD segment drive lines directly, eliminating the need for an external LCD bias generator in low-duty display applications. Operating voltage spans 3.0 V to 5.5 V across the industrial temperature range. Typical applications for this MPN include white-goods user interfaces (washing machines, microwave ovens), remote controls with LCD display segments, medical metering devices such as glucose or blood-pressure monitors, and battery-powered instrument clusters. Designers select the MC68HC908LK24CPB when on-chip LCD driving, modest FLASH, and a small LQFP footprint matter more than raw CPU performance. A critical design consideration for the MC68HC908LK24CPB is its lifecycle status: this part is reported as Obsolete on at least one distributor, so designers should confirm active inventory or plan a migration to MC9S08 or S08 MCU families before starting new designs. This page synthesizes distributor pricing, parametric comparison with same-family alternatives, and practical design notes that complement the official Freescale/NXP datasheet rather than restating it verbatim.

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MC68HC908LK24CPK - 8MHz 8-bit HC08 MCU 24KB FLASH 80-LQFP | NXP
MC68HC908LK24CPK

MC68HC908LK24CPK - 8MHz 8-bit HC08 MCU 24KB FLASH 80-LQFP | NXP

The NXP MC68HC908LK24CPK is an 8-bit HC08 family microcontroller integrating 24KB of FLASH program memory and an on-chip LCD driver in an 80-pin LQFP (12x12 mm) package. It is built on the M68HC08 CPU core running at 8 MHz, with 768 bytes of RAM, 40 general-purpose I/O lines, and integrated peripherals including PWM, LVD, POR, I2C, IRSCI, and SPI. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory, and peripheral interfaces on one die. The M68HC08 family is based on NXP's (formerly Freescale) Customer-Specified Integrated Circuit (CSIC) design strategy, allowing the same CPU08 core to be paired with different peripheral mixes and memory sizes. The 8-bit MCU category sits at the entry level of the embedded computing hierarchy - above simple logic devices but below 32-bit microcontrollers - and is widely used in cost-sensitive consumer, appliance, and industrial control products where deterministic behavior and low power matter more than raw compute throughput. Key features include 24KB FLASH (24K x 8) of in-application reprogrammable program memory, 768 bytes of on-chip RAM, a built-in LCD driver supporting segment displays typical of appliance front panels, 40 multifunctional I/O pins, and a 2.1V brown-out / low-voltage detect (LVD) with power-on reset (POR). Multiple communication interfaces (I2C, SPI, IRSCI) enable connection to sensors, EEPROMs, and host processors without external glue logic. The HC08 CPU08 core provides an enhanced instruction set relative to the legacy HC05 family, including a STOP and WAIT low-power mode, hardware multiply (MUL) in two cycles, and a 16-bit index register. The integrated LCD controller can drive up to 40 segments directly, eliminating the need for an external LCD driver in many human-machine-interface designs. Typical applications include white-goods control boards (washing machines, microwave ovens, dishwashers), remote controls, simple metering and instrumentation, smart thermostats, and any HMI product that needs a segment LCD and modest compute. The combination of FLASH, RAM, LCD, and PWM in one package is particularly attractive for motor-control sub-systems with on-screen feedback. When designing with this MCU, plan the LCD segment allocation against the available I/O budget (40 pins, some shared with LCD segments) and ensure the supply rail stays above the LVD threshold (3V typical) during cold-start inrush. Program FLASH in-circuit via the built-in monitor ROM to avoid external programmer cost.

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MC68HC908MR16CB - 8-Bit 8MHz HC08 MCU 16KB Flash 56-SDIP | NXP
MC68HC908MR16CB

MC68HC908MR16CB - 8-Bit 8MHz HC08 MCU 16KB Flash 56-SDIP | NXP

The NXP MC68HC908MR16CB is a member of the M68HC08 family of 8-bit HCMOS flash microcontrollers, featuring a HC08 CISC core running at 8 MHz, 16 KB of on-chip FLASH program memory, 768 bytes of SRAM, and 44 general-purpose I/O lines, all integrated in a 56-pin shrink-DIP (PSDIP) package. The MR16 variant is purpose-built for motor control and integrates dedicated peripherals including a PWM module, a 12-bit timer interface, Serial Communications Interface (SCI), and Serial Peripheral Interface (SPI), which makes it suitable for direct-drive of brushless DC, AC induction, and switched reluctance motors. A microcontroller (MCU) of this class is a single-chip computer that combines a CPU, non-volatile program memory, volatile data memory, and configurable I/O peripherals into one package, sitting at the lowest layer of the embedded control hierarchy (MCU -> microcontroller -> embedded processor -> semiconductor). The 'HC08' instruction set is a CISC architecture with a rich orthogonal instruction set that supports BCD arithmetic and bit-manipulation operations, offering byte-efficient code density suitable for cost-sensitive industrial and appliance applications. Key features of the MC68HC908MR16CB include: 16 KB flash with in-circuit programmability, 8 MHz internal bus frequency yielding 125 ns minimum instruction cycle, 768 bytes of on-chip SRAM for stack and variable storage, 44 user I/O lines multiplexed with peripheral functions, an internal oscillator, low-voltage detect (LVD) and power-on reset (POR) brown-out protection, plus a dedicated PWM module with dead-time insertion and current-sense inputs. The device operates from a 5 V supply and supports in-circuit simulation via a single-pin background debug interface. Architecturally, the chip implements the HC08 core (HC08 family, M68HC08 line, Motorola-origin 8-bit architecture now produced by NXP). It shares its silicon platform with the larger MC68HC908MR32 (32 KB flash), allowing code migration between MR16 and MR32 within the same footprint. The internal oscillator provides a stable clock source without external crystal requirements. Typical applications for this part include three-phase brushless DC motor control for appliances and HVAC blowers, industrial variable-frequency drives, low-end servo positioning, washing-machine direct-drive controllers, and ceiling fan speed controllers. The integrated PWM module with dead-time generation simplifies three-phase inverter design by reducing external component count. When designing with the MR16CB, ensure decoupling caps are placed within 5 mm of the VDD pin per the manufacturer datasheet power-supply bypassing guidance, and consider derating the clock frequency by 10-20 percent to allow margin for industrial temperature operation. The 56-PSDIP package is a through-hole form factor suited for hand-soldered prototypes and industrial enclosures, not high-density surface-mount assemblies. This page synthesizes distributor availability, application examples, and practical design considerations for the MC68HC908MR16CB not found in the manufacturer datasheet alone, presenting the part's motor-control value proposition for legacy and new industrial designs.

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MC68HC908MR16CFU - 8MHz HC08 8-Bit MCU 16KB Flash | NXP | Motor Control
MC68HC908MR16CFU

MC68HC908MR16CFU - 8MHz HC08 8-Bit MCU 16KB Flash | NXP | Motor Control

The NXP MC68HC908MR16CFU is an 8-bit HC08-family microcontroller with 16KB of on-chip FLASH program memory and a maximum CPU bus frequency of 8MHz, housed in a 64-pin QFP (14x14 mm) package designed for surface-mount motor-control applications. The MR16 is part of the HC08MR sub-family which integrates a dedicated PWM module tailored for three-phase brushless DC (BLDC) and AC induction motor drives. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (FLASH/ROM), data memory (RAM), and a configurable set of peripheral modules. The HC08 architecture is a CISC 8-bit core derived from the Motorola/Freescale M68HC05 lineage; it adds a 16-bit index register, an 8-bit page register, and a more orthogonal instruction set while remaining fully static and using the same tool-chain family. The MR sub-family extends the base HC08 with motor-control-oriented peripherals, placing this part in the taxonomy: HC08MR -> HC08 -> M68HC08 -> 8-bit MCU -> microcontroller -> embedded IC -> semiconductor. Key features include 16KB FLASH organized as 16K x 8, 768 bytes of on-chip RAM, 44 user I/O lines, and an integrated 6-channel PWM module suitable for center-aligned or edge-aligned complementary outputs with programmable dead-time insertion. Connectivity is provided through an SCI (serial communications interface) and an SPI (serial peripheral interface). On-chip supervisory functions include Low-Voltage Detection (LVD), Power-On Reset (POR), a master RESET pin, and a STOP/wait low-power mode that fully halts the CPU while retaining RAM. The 64-pin QFP package offers generous ground and supply pins for noise-sensitive analog sections and gives ample routing area for the PWM and timer signals, which is critical in three-phase inverter layouts. The 14x14 mm body fits standard 0.8 mm pitch footprints used in industrial drives. Combined with the 8MHz maximum bus frequency, this part targets cost-sensitive motor-control loops that do not require the computational throughput of 32-bit Cortex-M devices. Typical applications include low-voltage three-phase BLDC fan and pump controllers, appliance motor drives (washing machines, dishwashers, range hoods), HVAC blower controls, and small industrial variable-frequency drives where dedicated hardware PWM reduces firmware overhead. When designing with the MC68HC908MR16CFU, route the PWM outputs to keep high-current traces short and isolated from analog feedback, and use the SCI for isolated UART diagnostics or a half-duplex RS-485 interface to a host controller. This page synthesizes distributor stock, cross-reference data, and practical design notes that supplement the manufacturer datasheet for engineers evaluating this part.

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MC68HC908MR32CB - 32KB Flash 8-Bit MCU | NXP 56-SDIP Motor Control
MC68HC908MR32CB

MC68HC908MR32CB - 32KB Flash 8-Bit MCU | NXP 56-SDIP Motor Control

The NXP MC68HC908MR32CB is a member of the M68HC08 Family of 8-bit microcontroller units (MCUs) featuring 32KB of Flash program memory, 768 bytes of RAM, and 36 I/O lines. Housed in a 56-pin Shrink DIP (SDIP) package with 0.600 inch (15.24 mm) row spacing, it operates at 8 MHz bus speed from a 5V supply. The device is built on Freescale/Motorola's HCMOS process and includes an integrated 8-bit timer, pulse-width modulation (PWM) channels optimized for motor control, and an internal oscillator, reducing external component count. An 8-bit MCU such as the MC68HC908MR32CB is a single-chip computer that integrates CPU, RAM, non-volatile program memory, and peripheral I/O on one die. The 68HC08 line is part of the broader 8-bit microcontroller family used in cost-sensitive, deterministic real-time applications. Within the electronics taxonomy it sits under: MCU -> microcontroller unit -> embedded processor -> semiconductor. Competing architectures include the Microchip PIC16/PIC18 and the Atmel/Microchip AVR families, but the HC08 offers an in-application programmable Flash and a stable instruction set favored in industrial motor drive designs. Key features include 32KB (32K x 8) Flash for user code, 768 bytes of on-chip SRAM for variables and stack, an internal oscillator that eliminates the need for an external crystal in many designs, and dedicated PWM outputs suitable for three-phase brushless DC motor commutation. The HC08 CISC instruction set simplifies code generation while maintaining deterministic cycle counts. The 56-SDIP through-hole package offers robust mechanical and thermal characteristics for industrial control hardware. The architecture combines a 68HC08 CPU core with on-chip debug support, low-voltage detect, and multiple timer interfaces. The Flash array supports in-application reprogramming, enabling firmware upgrades in the field without removing the MCU from the board. The 768-byte RAM accommodates modest data buffers and stack frames typical of motor-control state machines. Typical applications include single-phase and three-phase AC induction motor control, brushless DC (BLDC) and switched-reluctance drives, washing-machine and refrigerator compressor drivers, low-end variable-frequency drives, and industrial fans/pumps. The PWM architecture and 8 MHz throughput are tuned for direct control of small appliances. When designing with this part, ensure decoupling capacitors are placed close to the VDD/VSS pins per the bypass guidance in the datasheet. Use high-frequency-response ceramics on power pins to suppress transient currents during PWM edge transitions, which would otherwise couple noise into adjacent analog rails. This page synthesizes distributor stock data, pin-compatible substitutes, and practical design notes not compiled in the manufacturer's datasheet.

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MC68HC908MR32CFU - 8MHz 8-bit MCU 32KB Flash 64-QFP | NXP
MC68HC908MR32CFU

MC68HC908MR32CFU - 8MHz 8-bit MCU 32KB Flash 64-QFP | NXP

The NXP (formerly Freescale/Motorola) MC68HC908MR32CFU is an 8-bit HC08-family microcontroller built around the CPU08 core, offering 32KB of on-chip FLASH program memory and 768 bytes of RAM in a 64-pin QFP package (14x14 mm). According to the NXP MC68HC908MR32 datasheet, this MCU operates at up to 8.2 MHz internal bus frequency, integrates 44 general-purpose I/O pins, and is targeted at motion-control and motor-drive applications. Connectivity is provided through SCI (serial communications interface) and SPI peripherals, while system protection is supplied by on-chip LVD (low-voltage detect) and POR (power-on reset) circuits. The device is rated for an operating temperature range of -40C to +85C and ships in a 64-QFP surface-mount footprint. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory, peripherals, and I/O into one package, designed for embedded control tasks. The MC68HC908MR32CFU sits within the broader M68HC08 family taxonomy: MCU -> 8-bit microcontroller -> HC08 family -> motor-control sub-family -> MR32 series. The architecture uses a customer-specified integrated circuit (CSIC) design strategy, allowing NXP/Freescale to mix memory sizes, peripherals, and I/O counts on a common core. Key features include built-in PWM channels optimised for three-phase motor control, an analog-to-digital converter for current/voltage sensing, and a programmable timer interface (TIM). The FLASH memory supports in-circuit programming and security-lock features for code protection. The 64-QFP package provides ample I/O for power-stage interfacing while maintaining a manageable PCB footprint. Typical applications include low-end brushless DC (BLDC) and permanent-magnet synchronous motor (PMSM) control, appliance motor drives such as washing machines and refrigerators, HVAC fan control, and industrial variable-frequency drives (VFDs). The PWM and ADC peripherals are hardware-tuned for current-loop control loops. When designing with this MCU, ensure that the 8 MHz internal clock is matched to your application's control-loop bandwidth, and budget for the FLASH/erase endurance if in-system firmware updates are planned.

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MC68HC908QT1CFQ - 8-Bit 8MHz HC08 MCU 1.5KB Flash | NXP
MC68HC908QT1CFQ

MC68HC908QT1CFQ - 8-Bit 8MHz HC08 MCU 1.5KB Flash | NXP

The NXP (formerly Freescale/Motorola) MC68HC908QT1CFQ is an 8-bit M68HC08 family microcontroller unit (MCU) with 1.5 KB of on-chip FLASH program memory, 128 bytes of RAM, and an 8 MHz internal bus clock, housed in an 8-pin DFN-EP (4x4 mm) package with an exposed thermal pad. The 'CFQ' suffix denotes the DFN-EP package and lead-free finish. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (FLASH or ROM), volatile data memory (RAM), and peripherals such as timers, I/O ports, and communication interfaces onto one die. Within the broader taxonomy, the M68HC08 belongs to the CISC (Complex Instruction Set Computer) family with a Von Neumann architecture, where program and data share a single bus - simpler and lower-cost than Harvard-architecture RISC alternatives. The 'low-cost Q-family' sub-line targets cost-sensitive, pin-constrained applications where DIP-8/SOIC-8 footprints are too large. Key features of the MC68HC908QT1CFQ include an 8 MHz internal bus clock (4 MHz bus rate in standard mode, doubled to 8 MHz via the internal phase-locked-loop-like bus generator), 6 general-purpose I/O pins, a 6-channel 8-bit timer with PWM capability, an analog comparator on-chip, and an on-chip oscillator trimmable via the user FLASH. The wide 2.7 V to 5.5 V operating range allows direct operation from a single Li-ion cell, three alkaline cells, or a regulated 3.3 V/5 V rail. From an architectural standpoint, the QT1 uses the same HC08 CPU core as the larger QY/QT family members, sharing the instruction set, addressing modes, and on-chip debug (OCD) interface - so code is portable across the family. The 1.5 K FLASH is split into a 1 K user region and a 512-byte monitor/Bootloader ROM region used for in-circuit FLASH programming and debug. Typical applications include ultra-low-cost consumer appliances, IR remote-control transmitters, single-cell Li-ion toys, LED controllers, simple sensor readouts, and replacement of discrete logic in legacy designs where the Q-family's small 8-pin DFN footprint saves board area. The device is also a popular teaching and hobby MCU because of its free Freescale/NXP CodeWarrior toolchain and the low-cost USBMULTILINKBDM programmer. When designing with this MCU, note that FLASH endurance is rated at 100 program/erase cycles minimum (typical 1000) and in-application programming must be performed from the monitor ROM area - plan your firmware update flow accordingly. The 8-pin DFN-EP package requires careful PCB thermal pad soldering to meet MSL1 moisture-sensitivity and to keep the exposed pad at ground potential for EMI suppression.

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MC68HC908QT1CPE - 8-Bit HC08 MCU, 1.5KB Flash, 8MHz | NXP
MC68HC908QT1CPE

MC68HC908QT1CPE - 8-Bit HC08 MCU, 1.5KB Flash, 8MHz | NXP

The NXP MC68HC908QT1CPE is a low-cost, high-performance 8-bit microcontroller from the M68HC08 Family housed in an 8-pin PDIP (PE) package. It integrates an enhanced CPU08 core with 1.5 KB of on-chip FLASH program memory, 128 B of RAM, and is offered as the no-ADC variant of the HC08QT1 sub-family, targeting simple cost-sensitive control tasks. A microcontroller (MCU) is a single-chip computer that combines a CPU core, program and data memory, peripherals, and I/O on one die. Within the broader taxonomy, the HC08QT1 is an 8-bit CISC MCU -> member of the HC08 family -> Freescale/NXP M68K lineage -> embedded microcontroller -> semiconductor IC. The HC08QT1 occupies the low-cost, low-pin-count node of the HC08Q tree, providing FLASH in-system programmability without an integrated analog-to-digital converter. Key features include a 16 MHz maximum internal bus frequency (8 MHz typical application operation), a 4.5 V to 5.5 V single-supply operating range, on-chip FLASH with security, a 16-bit timer, an analog comparator, and a low-power STOP/WAIT mode. The Von Neumann architecture simplifies tool chains because program and data share a single address space, and the CISC instruction set reduces code size for bit-heavy control routines. The architecture is built around the enhanced CPU08 core running from an internal bus, with FLASH used for both program storage and in-application reprogramming via the on-chip monitor ROM. The 8-pin PDIP package exposes six general-purpose I/O lines, the OSC1/OSC2 clock pins, and VDD/VSS, enabling two-layer board layouts and breadboard-friendly prototypes without requiring fine-pitch surface-mount assembly. Typical applications include low-cost consumer appliances, white-goods control boards, simple motor drivers, lighting controllers, and legacy industrial timers. The device is also used in educational platforms that still target the HC08 instruction set for assembly teaching labs. A key design consideration is supply-rail decoupling: place a 100 nF ceramic capacitor as close as possible to the VDD pin, since the internal bus draws peak current during FLASH erase cycles. For EMI-sensitive designs, route the oscillator traces with a guard ring and keep them short to minimize radiated noise. This page synthesizes distributor pricing, drop-in FLASH-programmable drop-in alternatives from the same HC08Q family, and practical design notes not found in the manufacturer datasheet.

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MC68HC908QT1MP - 8-Bit 8MHz 1.5KB Flash MCU | NXP
MC68HC908QT1MP

MC68HC908QT1MP - 8-Bit 8MHz 1.5KB Flash MCU | NXP

NXP Semiconductors MC68HC908QT1MP is an 8-bit M68HC08 microcontroller with 1.5 KB flash memory, 64-byte RAM, 8 MHz operation, low-voltage detection, and an 8-pin package for basic embedded control applications. Its compact memory footprint and Von Neumann CISC architecture suit small control nodes, appliance interfaces, and simple sequential logic. A microcontroller is a programmable semiconductor that integrates a CPU, memory, and peripherals on one device. The M68HC08 family belongs to the broader embedded-controller hierarchy and uses the enhanced CPU08 core, a CISC instruction set, and Von Neumann program-memory organization. This architecture favors compact code, straightforward peripheral integration, and deterministic control rather than high-throughput application processing. The MC68HC908QT1MP provides 1.5 KB of flash for program storage, eliminating a separate external program-memory device for small firmware images. Its 64-byte RAM supports variables, stack operations, and short-lived control data. The listed 8 MHz operating speed provides basic task execution capability, while low-voltage detection helps the firmware identify an undervoltage condition before relying on an unreliable supply level. Because the verified product information does not enumerate every peripheral, I/O count, electrical limit, timing range, or converter specification, those details remain unstated rather than inferred. Engineers should confirm the exact pin functions, oscillator requirements, supply limits, programming method, and timing behavior against the manufacturer data sheet before schematic release. Typical uses include basic embedded controllers, small appliance control panels, simple sensor-conditioning nodes, and low-cost systems requiring nonvolatile firmware. The 8-pin package is especially useful when board space is constrained, although the restricted pin count requires careful prioritization of power, programming, clock, control, and signal functions. Design begins by verifying that 1.5 KB is sufficient for the final compiled image and that 64 bytes of RAM accommodates the stack plus all live variables. Avoid adding time-critical communication or high-current I/O tasks unless their required interfaces, timing, and electrical limits are confirmed in the datasheet. This page combines verified NXP product facts, distributor availability information, package-oriented sourcing details, and explicit engineering caveats where the supplied data does not support a specification. It is intended to narrow the decision without presenting unverified electrical or peripheral claims as facts.

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MC68HC908QT1MPE - 8-bit HC08 MCU, 1.5KB Flash, 8-DIP | NXP
MC68HC908QT1MPE

MC68HC908QT1MPE - 8-bit HC08 MCU, 1.5KB Flash, 8-DIP | NXP

The NXP MC68HC908QT1MPE is an 8-bit HC08 microcontroller unit (MCU) with 1.5KB of Flash program memory and 128 bytes of RAM, housed in an 8-pin PDIP (Plastic DIP) through-hole package. An 8-bit microcontroller is a single-chip computer built around an 8-bit data bus and a Von Neumann or Harvard architecture, integrating CPU, RAM, ROM/Flash, and I/O peripherals onto one die. The HC08 family uses a Complex Instruction Set Computer (CISC) Von Neumann architecture, meaning the 8-bit CPU08 core fetches instructions and data over a shared 16-bit address bus. The HC08Q sub-family sits in the hierarchy as: 8-bit MCU -> HC08 family -> HC08Q sub-family -> low-cost, low-pin-count line, and is widely used for cost-sensitive consumer and industrial control where 32-bit ARM Cortex parts would be overkill. Key features of the MC68HC908QT1MPE include 1.5KB (1.5K x 8) of Flash memory, 128 bytes of RAM, an internal 8MHz bus clock with a trimmable internal oscillator, 5 general-purpose I/O pins, on-chip LVD (Low-Voltage Detect) and POR (Power-On Reset), and a PWM module. The part runs from a 2.7V to 5.5V supply (industrial range), is specified for -40C to +85C operation, and uses an HC08 CPU08 core that executes one instruction per 2 to 13 bus cycles. The HC08 architecture combines a small, deterministic 8-bit core with on-chip Flash, a flexible timer/PWM block, and a keyboard interrupt module that is well-suited to sensing and control loops. The QT1 variant strips the ADC for the smallest possible footprint, leaving the 5 bidirectional I/O pins to handle digital I/O, timer capture/compare, and PWM output. Programming is performed through a single-wire background debug mode (BDM) interface that uses two of the device pins, leaving three remaining for application use. Typical applications for the MC68HC908QT1MPE include simple PWM motor control in small appliances, low-cost remote-control transmitters, LED lighting controllers, sensor signal conditioning with digital output, and battery-powered handheld devices. Its tiny 8-pin PDIP footprint and 1.5KB Flash make it a fit where 32-bit MCUs would add unnecessary BOM cost. Designers should note that the 1.5KB Flash limits program size to roughly 1K instructions of HC08 assembly or 600-800 lines of C code. For designs that may grow, the HC08Q family offers pin-compatible parts with 2KB (QT2), 4KB (QT4), and ADC-equipped (QY) variants. The MC68HC908QT1MPE is also marked as End-of-Life on the NXP product page, so new designs should consider the pin-compatible QT2/QT4 family members or move to a modern S08 core.

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MC68HC908QT2CDW - 8-bit HC08 MCU 1.5KB Flash 8MHz SOIC-8 | NXP
MC68HC908QT2CDW

MC68HC908QT2CDW - 8-bit HC08 MCU 1.5KB Flash 8MHz SOIC-8 | NXP

The NXP Semiconductors MC68HC908QT2CDW is a member of the M68HC08 Family of 8-bit microcontroller units (MCUs), featuring a 1.5 KB Flash program memory, 128 B RAM, an 8 MHz internal bus, and an on-chip 10-bit ADC, housed in an 8-pin SOIC EIAJ (DW) package. The device is built on a CISC (Complex Instruction Set Computer) Von Neumann architecture and supports dual supply ranges (3.3 V or 5 V), making it compatible with both 3 V and 5 V system designs. What is an HC08 8-bit microcontroller? An HC08 MCU is a CISC, Von Neumann 8-bit microcontroller family that uses a unified address space for program and data memory, allowing instructions to operate on memory with a single fetch. The HC08 family sits below 16-bit HC12 and 32-bit ColdFire devices in the Freescale/NXP automotive and industrial MCU hierarchy, while sharing the same M68K-derived instruction set lineage. These 8-bit MCUs target cost-sensitive, low-power embedded control applications where deterministic interrupt response and minimal BOM cost are more important than computational throughput. Key features include 1.5 KB of Flash program memory with in-circuit programmability, 128 B of on-chip RAM, an internal 8 MHz oscillator (with optional external crystal), up to 5 channels of 10-bit ADC with 12 us conversion time, a 16-bit timer with input capture/output compare/PWM channels, and a low-power STOP/WAIT architecture. The device also provides a keyboard interrupt module on selected pins and an internal COP watchdog for software-locked operation. The integrated SCI (serial communications interface) and SPI peripherals enable direct connection to sensors and host processors. The HC08 core delivers up to 8 MIPS at 8 MHz and includes a BSET/BCLR bit-manipulation instruction set, a 16-bit index register (H:X), and an integrated hardware breakpoint for debug. The Flash memory supports in-application programming through a ROM-resident monitor, allowing firmware updates in the field without external programmer hardware. The ADC uses a successive-approximation register architecture with sample-and-hold, providing 10-bit monotonic output across the operating temperature range. Typical applications include low-cost sensor interfaces, white-goods and appliance control modules, automotive body electronics (interior lighting, mirror control, wiper controllers), simple motor control (small DC and stepper drivers), battery chargers, IR remote receivers, and any application requiring compact 8-pin SOIC packaging with embedded Flash. The wide operating temperature range and automotive-grade variants make the part suitable for AEC-Q100 qualified designs in body and chassis subsystems. When designing with this device, ensure adequate decoupling by placing a 100 nF ceramic capacitor as close as possible to the VDD pin, with a bulk 10 uF tantalum or ceramic on the supply rail. Use the internal 8 MHz oscillator for cost-sensitive designs, or select an external crystal when USB-class timing accuracy is required. Reset must be held low for at least 32 bus cycles after VDD stabilizes within tolerance. This page synthesizes distributor pricing, drop-in same-package alternatives from the HC08/QY family, and practical design notes that go beyond the manufacturer datasheet to assist procurement and embedded-system engineers.

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MC68HC908QT2CP - 8-bit HC08 MCU, 1.5KB Flash, 8MHz | NXP
MC68HC908QT2CP

MC68HC908QT2CP - 8-bit HC08 MCU, 1.5KB Flash, 8MHz | NXP

The NXP MC68HC908QT2CP is an 8-bit HC08-family microcontroller with 1.5KB of on-chip FLASH program memory, operating at up to 8MHz internal bus frequency, housed in an 8-pin PDIP through-hole package. It integrates 128 bytes of RAM, an 8-bit ADC with multiple channels, a 16-bit timer, and the standard HC08 peripherals on a Von-Neumann CISC architecture optimized for low-cost embedded control. An 8-bit microcontroller (MCU) is a single-chip computer that combines a CPU, non-volatile program memory (FLASH/ROM), volatile data memory (RAM), and a set of on-chip peripherals (ADC, timers, communication interfaces). The HC08 family uses a CISC, Von Neumann architecture where program and data share a single bus, contrasting with RISC Harvard-architecture cores. MCUs sit inside the broader hierarchy: microcontroller -> embedded processor -> semiconductor -> integrated circuit. Low-pin-count HC08 derivatives like the QY/QT series target cost-sensitive applications where 8-pin or 16-pin packages and minimal BOM are critical design constraints. Key specifications include a 3V to 5.5V supply range, internal 8MHz oscillator, 1.5KB FLASH, 128B RAM, 6-channel 8-bit ADC with 4.5us conversion time, two 16-bit timers, and an SCI (UART) interface. The 8-pin PDIP variant (CP suffix) provides the lowest-cost packaging for through-hole designs and breadboard prototypes, making it ideal for educational and hobbyist use. The part offers typical applications in consumer appliances, simple motor control, sensor conditioning, and replacement of discrete logic with embedded intelligence. Designers should note that the HC908 QT2 is a member of the legacy M68HC08 family which has been superseded by newer S08 and S12 architectures for new designs. For new product development, the Freescale/NXP S08 (S08QE, S08AC) families offer pin-to-pin compatibility in many cases with lower power and better peripherals. Existing designs using the QT2 benefit from mature toolchains (CodeWarrior HC08, ICC08), abundant reference code, and low unit cost. The part's small FLASH and RAM footprint (1.5KB/128B) makes it well-suited to very simple control loops, not for graphics or wireless stacks. Typical applications include low-end consumer IR remote controls, battery chargers, fan controllers, simple sensor interfaces, and educational platforms. Designers should use the HC908 QT-series only when BOM cost dominates and FLASH/RAM needs are minimal. The 8-pin PDIP package simplifies hand-soldering and prototyping but occupies more PCB area than SOIC or TSSOP equivalents.

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