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MC68HC908GR8CP - 8-Bit HC08 MCU 7.5KB Flash 8MHz 28-PDIP | NXP
MC68HC908GR8CP

MC68HC908GR8CP - 8-Bit HC08 MCU 7.5KB Flash 8MHz 28-PDIP | NXP

The NXP MC68HC908GR8CP is an 8-bit member of the low-cost, high-performance M68HC08 Family of microcontroller units (MCUs) with 7.5KB of on-chip Flash memory, an 8 MHz CPU08 core, and a 28-pin PDIP through-hole package. It ships in a -40C to +85C industrial temperature grade and operates from a 3.0V to 5.5V supply. A microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory (Flash or ROM), and a range of peripherals such as timers, ADC, serial ports, and GPIO. The MC68HC908GR8CP belongs to the HC08 architecture hierarchy: 8-bit microcontroller -> CISC MCU -> embedded controller -> semiconductor. Within the broader NXP/Freescale portfolio, the GR8 family sits in the low-power, general-purpose 8-bit segment aimed at replacing legacy 68HC05 designs while adding Flash and a richer peripheral mix. Key features include 7.5KB (7.5K x 8) of Flash program memory, 384 bytes of RAM, an internal 8 MHz bus clock, a 6-channel 8-bit ADC, two 16-bit timers, an SCI (UART) port, an SPI port, and up to 21 GPIO lines. The CPU08 core retains HC05 source compatibility while adding a Multiply (MUL) instruction and a higher bus clock. Built-in security includes Flash security and a low-voltage inhibit (LVI) module. Typical applications include legacy industrial control boards, white-goods user interfaces, low-end appliance controllers, automotive body modules (non-safety), HVAC zone controllers, and educational / development platforms. The PDIP-28 footprint also makes it a friendly target for through-hole prototyping and field service replacements. When designing with this device, place decoupling capacitors close to VDD/VSS pairs and leave the IRQ/Reset pin accessible for in-system debugging. Note that the GR8 is now in Obsolete / Last Time Buy status - design new platforms around the S08 or S12 families, but treat the GR8 as a long-life replacement for installed HC05/HC08 bases.

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MC68HC908GT16CB - 8-Bit 8MHz 16KB FLASH HC08 MCU | NXP 42-PDIP
MC68HC908GT16CB

MC68HC908GT16CB - 8-Bit 8MHz 16KB FLASH HC08 MCU | NXP 42-PDIP

The NXP (formerly Freescale) MC68HC908GT16CB is an 8-bit HC08-family microcontroller with 16KB of FLASH program memory, an 8 MHz internal bus clock, and a 42-pin PDIP through-hole package, designed for cost-sensitive embedded control applications. It integrates a 16-channel 10-bit ADC, multiple timers, and standard serial communication peripherals in a single CMOS device, making it suitable for automotive body electronics, appliance control, and industrial monitoring. A microcontroller (MCU) is a single-chip computer that contains a processor core, program memory, data memory, and peripheral interfaces on one integrated circuit. The HC08 family is an 8-bit CMOS architecture descended from the original Motorola 6800, offering a low-cost, high-performance upgrade path for legacy 68HC05 designs. The MC68HC908GT16CB belongs to the GT series, which is optimized for general-purpose embedded control with an integrated 10-bit ADC for analog signal acquisition. Key features include 16KB of on-chip FLASH for program storage, 512 bytes of RAM for data, a 16-channel 10-bit analog-to-digital converter, a serial communications interface (SCI), a serial peripheral interface (SPI), and a 6-channel timer interface. The device operates from a single 3V to 5.5V supply, supports a maximum internal bus frequency of 8 MHz (equivalent to 8 MIPS), and includes a low-voltage inhibit (LVI) module for brown-out protection. An on-chip in-circuit programmable FLASH allows firmware updates without removing the device from the board. Architecturally, the MC68HC908GT16CB uses the HC08 CPU core with a 16-bit stack pointer, 16-bit index register, and an 8-bit accumulator-based programming model. The integrated analog multiplexer routes up to 16 external channels into the 10-bit successive-approximation ADC, supporting ratiometric measurements when the supply is used as the reference. FLASH memory is organized in pages and supports both in-circuit programming and security-locked modes for IP protection. Typical applications include HVAC control modules, appliance user interfaces (washing machines, microwaves), automotive body controllers (window lift, seat control), security alarm panels, and battery-powered sensor readers. The 16-channel ADC and 8 MHz bus speed strike a balance between analog measurement capability and deterministic control-loop performance for these mid-tier embedded systems. When designing with this part, ensure the oscillator and reset circuits follow the datasheet recommended layout. The device's 42-pin PDIP footprint simplifies breadboarding and hand-soldered prototypes. Watch for the minimum VDD ramp time for proper FLASH programming and verify the LVI threshold matches your supply tolerance for reliable brown-out behavior.

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MC68HC908GT16CFB - 8-bit HC08 MCU, 16KB FLASH, 44-QFP | NXP
MC68HC908GT16CFB

MC68HC908GT16CFB - 8-bit HC08 MCU, 16KB FLASH, 44-QFP | NXP

The NXP (formerly Freescale) MC68HC908GT16CFB is an 8-bit microcontroller unit (MCU) belonging to the M68HC08 family, featuring a CPU08 core with 16KB of on-chip FLASH program memory and housed in a 44-pin QFP (10x10 mm) package. It operates at a maximum internal bus frequency of 8 MHz and integrates on-chip peripherals including a 10-bit ADC, up to 36 general-purpose I/O lines, a serial communications interface (SCI), a serial peripheral interface (SPI), and a 16-bit timer with capture/compare/PWM channels. What is an HC08 microcontroller? An HC08 (or M68HC08) is a high-performance, low-cost 8-bit microcontroller architecture from Motorola/Freescale/NXP that succeeded the earlier HC05 family. It uses the enhanced CPU08 core, which adds a BGND instruction for in-circuit debugging and an XIRQ interrupt input alongside the original HC05 ISA. Within the broader taxonomy, an HC08 sits under 8-bit microcontrollers, which are themselves a subset of microcontrollers (MCUs) and ultimately embedded processors / semiconductors. HC08 devices typically integrate FLASH or ROM program memory, RAM, multiple timers, ADCs, and serial interfaces on a single die, making them cost-effective for volume embedded control. Key features of the MC68HC908GT16CFB include 16KB FLASH with in-circuit programmability, 1KB on-chip RAM, an on-chip oscillator that can operate with an external crystal or resonator, a low-power STOP and WAIT mode with peripheral wakeup, a 10-bit successive-approximation ADC with up to 8 input channels, and a programmable timebase module with selectable periodic interrupts. The device supports single-wire background debug mode (BDM) for non-intrusive in-circuit development and FLASH programming. Architecturally, the MC68HC908GT16CFB pairs the CPU08 core with a low-power CMOS process and an integrated oscillator/PLL block. The FLASH array includes a security feature that prevents unauthorized code readout, and the on-chip regulator supports wide operating voltages with low quiescent current draw. The 44-QFP package provides generous GPIO count and ADC channels for cost-sensitive industrial and appliance applications that do not require the throughput of a 16- or 32-bit MCU. Typical applications for this device include appliance control boards (washing machines, dishwashers, microwave ovens), industrial sensor interfaces, automotive body and convenience modules, HVAC thermostat controllers, battery chargers, motor-control edge nodes, and consumer remote controls. Its robust peripheral set and mature toolchain make it attractive for designs where code-portability and long-term stability outweigh raw compute performance. When designing with this MCU, ensure that decoupling capacitors (typically 100 nF + 10 µF) are placed close to the VDD/VSS pins and that the BDM debug header is reachable on the PCB to simplify field firmware updates. Engineers migrating from the earlier HC908GT8 (8KB FLASH) to this 16KB variant gain additional code space within the same 44-QFP footprint, easing in-field firmware expansion. This page synthesizes distributor pricing, drop-in-compatible same-family and cross-brand alternatives, pinout annotations, and practical design notes not found in the bare manufacturer datasheet.

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MC68HC908GZ16CFA - 8-Bit HC08 MCU, 16KB Flash, 48-LQFP | NXP
MC68HC908GZ16CFA

MC68HC908GZ16CFA - 8-Bit HC08 MCU, 16KB Flash, 48-LQFP | NXP

The NXP MC68HC908GZ16CFA is an 8-bit HC08-family microcontroller with 16 KB of on-chip FLASH program memory, 1 KB of RAM, and an integrated MSCAN08 (CAN 2.0B) controller, housed in a 48-pin LQFP (7x7 mm) package. It executes instructions from a 8 MHz internal bus clock driven by a clock-generation module that supports 1 MHz to 8 MHz external crystals, and includes FLASH security plus in-system programming via a host PC (no high-voltage entry required). The 'CFA' suffix designates the 48-LQFP industrial-temperature variant in the M68HC08 GZ family. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (FLASH/ROM), volatile data memory (RAM), and a rich set of programmable peripherals (timers, ADC, communications, GPIO) onto one die. The MC68HC908GZ16CFA belongs to the 8-bit MCU category, sitting within the HC08 (HCMOS 8-bit) product hierarchy: HC08 family -> M68HC08 line -> HC908 sub-family -> GZ CAN-integrated series -> low-cost automotive/industrial edge-node controller tier. Key features include an 8-channel 10-bit ADC with internal bandgap reference, two 16-bit timer/PWM modules, a serial communications interface (SCI), a serial peripheral interface (SPI), up to 37 general-purpose I/O pins, and a low-power STOP/WAIT mode with internal COP watchdog. The integrated MSCAN08 module implements the BOSCH CAN 2.0B specification (September 1991 revision), enabling the MCU to serve as a low-end CAN node on automotive and industrial networks. From an architectural standpoint, the HC908GZ16 uses a Von Neumann-style unified address map with FLASH mapped into the program space and supporting in-application re-programming through a ROM-resident monitor. The 5V-tolerant I/O ring and wide operating-voltage range make the part friendly to legacy 5V sensors and actuator drivers found in body-electronics modules. The MSCAN08 peripheral buffers up to 15 CAN messages in hardware, offloading the CPU from bus arbitration tasks. Typical applications include automotive body controllers (door modules, mirror controllers, seat controllers), industrial CANopen/J1939 slave devices, low-end HVAC control boards, appliance control panels, and simple sensor-fusion nodes that require a CAN physical layer but do not justify a 16-bit or 32-bit MCU. The wide 4.5 V - 5.5 V supply range and -40 C to +85 C industrial temperature grade also fit remote telemetry and energy-metering peripherals. When designing with this MCU, pay close attention to the bypass-capacitor guidance shown in Figure 1-4 of the datasheet. Because the HC908GZ16 I/O drivers source fast edges, VDD/VSS pins must each have a 100 nF ceramic placed within a few millimeters of the package. Designers should preserve the IRQ/TBG/Reset pin-out compatibility when migrating between HC908GZ8 and HC908GZ16 variants on the same PCB. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes that are not found in the manufacturer datasheet alone, helping engineers evaluate the MC68HC908GZ16CFA against modern 8-bit alternatives for both new designs and legacy maintenance.

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MC68HC908GZ60CFA - 8-Bit HC08 MCU 60KB Flash 48-LQFP | NXP
MC68HC908GZ60CFA

MC68HC908GZ60CFA - 8-Bit HC08 MCU 60KB Flash 48-LQFP | NXP

The NXP MC68HC908GZ60CFA is an 8-bit HC08-family microcontroller (MCU) with 60 KB of on-chip FLASH program memory, an 8 MHz internal bus frequency, and a 48-pin LQFP (7x7 mm) package. It integrates an MSCAN08 CAN 2.0B controller, a 10-bit analog-to-digital converter (ADC), and clock generation supporting 1 MHz to 8 MHz external crystals, targeting cost-sensitive industrial and automotive body-electronics designs. A microcontroller (MCU) is a single-chip computer that contains a CPU core, program memory (FLASH/ROM), working memory (RAM), and peripheral set. The HC08 is a mature 8-bit M68HC08 architecture from NXP (originally Motorola/Freescale), positioned as a low-cost, high-performance successor to the HC05 family. LDOs, switching regulators, and bus transceivers normally surround the MCU on the board, while the HC08 itself sits at the LDO -> linear regulator -> voltage regulator -> power management IC -> semiconductor hierarchy on the BOM. The MC68HC908GZ60CFA belongs to the CAN-enabled GZ sub-family, which adds an automotive-style CAN controller. Key features include 60 KB FLASH with security, 2 KB RAM, an 8-channel 10-bit ADC, an 8-bit keyboard interrupt module, a serial peripheral interface (SPI) and serial communications interface (SCI), and a clock generation module (CGM) with phase-locked loop (PLL). On-chip programming firmware allows in-system FLASH programming from a personal computer without external programmers, and FLASH security prevents unauthorized read-back. The device is built around the HC08 CPU core with a von Neumann-style unified memory map and 16-bit stack pointer. The 8 MHz internal bus is sourced from either a crystal (1-8 MHz) or the on-chip PLL. The MSCAN08 controller implements the BOSCH CAN 2.0B specification dated September 1991, supporting both standard (11-bit) and extended (29-bit) identifiers, with hardware acceptance filtering for bus offload. Typical applications include automotive body controllers, CAN nodes, HVAC modules, industrial sensor interfaces, low-cost appliance controllers, and instrumentation. The wide operating temperature range and robust peripheral set also suit battery management and CAN-connected supervisory nodes. When designing with this MCU, ensure the supply rail (VDD/VSS) is decoupled close to the pins with at least a 100 nF ceramic capacitor, route the crystal traces short and symmetric, and confirm the chosen CAN transceiver matches the MSCAN08's TX/RX logic levels. FLASH security must be set after final firmware load to prevent in-circuit extraction. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers shorten sourcing and design-review cycles.

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MC68HC908GZ60CFJ - 8-Bit MCU 60KB Flash | NXP | Industrial
MC68HC908GZ60CFJ

MC68HC908GZ60CFJ - 8-Bit MCU 60KB Flash | NXP | Industrial

The NXP (formerly Freescale) MC68HC908GZ60CFJ is an 8-bit HC08 microcontroller featuring 60KB of on-chip Flash program memory and an 8-MHz internal bus frequency, housed in a 32-pin LQFP (7x7) package. It integrates a configurable clock-generation module supporting 1-MHz to 8-MHz crystals, an MSCAN08 controller implementing the CAN 2.0B protocol per the September 1991 BOSCH specification, and the HC08 CPU core optimized for low-cost, high-performance 8-bit applications. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals. In the broader semiconductor taxonomy the MC68HC908GZ60CFJ belongs to the 8-bit microcontroller family -> HC08 family -> M68HC08 family -> embedded microcontrollers -> microprocessors & controllers -> integrated circuits (semiconductors). The 8-bit class remains widely deployed because it offers mature toolchains, deterministic behavior, and excellent code density for control-oriented tasks. Key features include 60KB of Flash program memory with security, 8-MHz maximum internal bus frequency, an integrated 10-channel 8-bit ADC, a serial communication interface (SCI), a serial peripheral interface (SPI), and 33 general-purpose I/O (GPIO) pins. The device operates from 3.0V to 5.5V across the industrial -40C to +125C temperature range and supports in-circuit programming (ICP) via an on-chip programming firmware loader that communicates with a host PC over the standard serial monitor ROM. The HC08 core uses a von-Neumann architecture with a 16-bit stack pointer and a hardware-friendly instruction set that runs at up to 8 MHz from an on-chip oscillator or external crystal. The MSCAN08 module implements the full CAN 2.0B specification (passive and active frames, 29-bit identifier), making this part a strong fit for legacy industrial networks, building automation, and automotive body-electronics nodes that predate widespread adoption of 32-bit Cortex-M controllers. Typical applications include CAN node endpoints in industrial machinery, HVAC controls, appliance control boards, security and access panels, automotive body controllers (window, seat, mirror), and any 5V-tolerant CAN/SCI/SPI gateway. The wide 3.0V-5.5V supply range and the rugged -40C to +125C operating window also make it suitable for outdoor instrumentation and legacy factory-floor replacements. When designing with the MC68HC908GZ60CFJ, ensure decoupling with at least one 100nF ceramic capacitor as close as possible to each VDD/VDDA pin pair, leave the OSC1/OSC2 layout symmetrical, and reserve PTA pins for the background-debug system if in-circuit debug is desired. This page synthesizes distributor pricing, drop-in alternatives within the 32-LQFP footprint, and design notes that complement the manufacturer datasheet to support both new designs and legacy board bring-up.

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MC68HC908GZ8MFJ - 8MHz 8KB Flash HC08 MCU with CAN | NXP
MC68HC908GZ8MFJ

MC68HC908GZ8MFJ - 8MHz 8KB Flash HC08 MCU with CAN | NXP

The NXP MC68HC908GZ8MFJ is an 8-bit HC08-family microcontroller with an 8MHz internal bus, 8KB of on-chip Flash program memory, 1KB of RAM, and integrated MSCAN08 (CAN 2.0B) plus SCI, SPI, and LINbus connectivity, housed in a 32-pin LQFP (7x7mm) package. It belongs to the cost-sensitive M68HC08 family of Freescale/NXP microcontrollers designed for automotive body and industrial CAN-node applications where a small, deterministic 8-bit core is preferred over a more complex 16/32-bit device. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (ROM/Flash), data memory (RAM), and a set of peripheral blocks onto one silicon die. The HC08 core uses an enhanced instruction set derived from the earlier M68HC05, with a stack-based architecture, 16-bit index registers, and a linear 64KB address space. Compared with larger ARM Cortex-M0 parts, the HC08 trades raw throughput for predictable interrupt latency, very low peripheral complexity, and long-term toolchain familiarity, which is why the family remains in production for safety subsystems, body controllers, and simple sensor nodes. Key features of the MC68HC908GZ8MFJ include 21 general-purpose I/O lines, an enhanced PWM module, low-voltage detection (LVD) with power-on reset (POR), Flash program memory security, an on-chip clock generator that supports 1MHz to 8MHz crystals, and 8KB of in-application programmable Flash with security lock. The MSCAN08 block implements the Bosch CAN 2.0B active protocol (dated September 1991), and the device is qualified for the temperature range and ESD/EMC margins typical of automotive underhood and body modules. The part uses a 2.7V to 5.5V single-supply architecture with low-power STOP and WAIT modes, making it suitable for body-electronics modules that must wake from CAN traffic. The 32-LQFP package supports standard surface-mount assembly and offers easy access to all peripheral pins for entry-level developers using NXP's HC08 tool chain and the on-chip bootstrap ROM for Flash programming without high voltage. Typical applications include CAN-based body controllers, instrument cluster slaves, HVAC flap/motor controllers, simple sensor interfaces, and LIN/CAN gateway nodes. The wide operating voltage and built-in LVD/POR simplify automotive 12V battery-direct designs. Designers should ensure the IRQ pin has a proper pull-up, route the CANH/CANL differential pair with 120-ohm termination, and use the on-chip COP watchdog to recover from bus stalls. The 32-LQFP ground/power pinout requires at least one decoupling capacitor per VDD pair and a single bulk cap near the package. This page consolidates NXP datasheet specifications, distributor inventory signals, drop-in compatible parts within the HC08 family, and practical design notes not bundled on the manufacturer's product folder.

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MC68HC908GZ8VFJ - 8MHz 8KB Flash 8-bit HC08 MCU | NXP
MC68HC908GZ8VFJ

MC68HC908GZ8VFJ - 8MHz 8KB Flash 8-bit HC08 MCU | NXP

The NXP MC68HC908GZ8VFJ is a member of the M68HC08 Family of 8-bit microcontroller units (MCUs), featuring an 8 MHz internal bus frequency, 8 KB of on-chip FLASH program memory, and CAN (MSCAN08) connectivity in a 32-pin LQFP (7x7 mm) package. It targets low-cost, high-performance embedded applications in automotive and industrial segments. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (ROM/FLASH), data memory (RAM), timers, communication peripherals, and I/O onto one die. The MC68HC908GZ8 belongs to the HC08 family, NXP/Freescale's widely deployed 8-bit architecture that evolved from the earlier M68HC05 series. Within the broader taxonomy, HC08 sits below 16/32-bit cores such as HCS12, ColdFire, and ARM Cortex-M, and is selected when cost, deterministic behaviour, and code density outweigh raw MIPS needs. Key features of the MC68HC908GZ8VFJ include an 8 MHz internal bus frequency from a Clock Generation Module that supports 1-8 MHz crystals, an MSCAN08 controller implementing CAN 2.0B (per Bosch September 1991 spec), FLASH program memory security, and on-chip programming firmware that allows in-system programming without high voltage. Additional peripherals typical of the GZ family include an 8-channel 10-bit ADC, multiple timers (TBM, TIM08), and SCI/SPI interfaces. Architecturally, the HC08 core uses a von Neumann bus with 16-bit addressing for linear memory access, a B accumulator pair, and H register for indexed operations. The integrated MSCAN08 peripheral enables robust CAN networking for automotive body and chassis applications. Security features include FLASH security bytes to prevent unauthorized read-out of program code, plus a monitor ROM for factory test and user programming. Typical applications include CAN node automotive body controllers, HVAC control modules, instrument clusters, industrial CAN-based sensor interfaces, and low-cost appliance control. The combination of FLASH, CAN, ADC, and timer resources makes the GZ8 particularly suited to distributed nodes on a CAN bus that require local analog sensing and actuator drive. When designing with this device, plan for an external CAN transceiver such as the TJA1050 or MC33901 to interface between the MCU's TTL-level MSCAN08 pins and the physical CAN bus. The 32-LQFP is footprint-compatible with other 68HC908GZ-family variants, enabling reuse when scaling FLASH/RAM up to the GZ16 or GZ60. This page synthesizes distributor pricing, drop-in compatible alternatives from the same GZ family, and practical design notes not consolidated in the manufacturer datasheet.

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MC68HC908JB8ADW - 8-bit USB MCU, 8KB Flash, 3MHz | NXP
MC68HC908JB8ADW

MC68HC908JB8ADW - 8-bit USB MCU, 8KB Flash, 3MHz | NXP

The NXP (formerly Motorola/Freescale) MC68HC908JB8ADW is an 8-bit HC08-family USB microcontroller (MCU) integrating a full-speed USB 1.1 device peripheral with 8 KB of on-chip FLASH memory and 256 bytes of RAM in a 28-pin SOIC package. The CPU runs at up to 3 MHz internal bus frequency from a 3.0V-5.5V supply, and the part is identified as the ADW temperature-grade (-40C to +85C) tray-pack variant. Background: The HC08 is a Customer-Specified Integrated Circuit (CSIC) 8-bit MCU family introduced by Motorola in the 1990s that uses a 68HC08 instruction set, an enhanced version of the HC05 architecture with a 16-bit index register, 16-bit stack pointer and additional addressing modes. The MC68HC908JB8 specifically targets low-cost USB peripherals (HID-class mice and keyboards, USB-to-UART bridges, USB I/O dongles) by integrating a USB 1.1 full-speed (12 Mbps) device controller, an integrated 3.3V USB voltage regulator, and a 5-channel 8-bit ADC together with standard HC08 timers and I/O. MCUs of this class belong to the broader hierarchy of 8-bit microcontrollers -> microcontrollers -> embedded processors -> semiconductor ICs. Key features include 8 KB FLASH (with security), 256 bytes of RAM, an integrated USB 1.1 device transceiver with on-chip 3.3V regulator, dual 16-bit timers (TIM1/TIM2), a 5-channel 8-bit ADC, an SCI/UART, and 23 general-purpose I/O lines. The ADW suffix denotes the -40C to +85C industrial-grade SOIC-28 wide-body (300 mil) package supplied in tube/tray. Architecture uses the HC08 CPU with a 16-bit program counter, 8-bit accumulator A plus combined accumulator B, HIDX index register, 16-bit stack pointer (H:X), and 64 KB linear address space. The USB module implements endpoint 0 control and up to 2 additional endpoints for interrupt or bulk transfers. The internal 3.3V regulator eliminates the need for an external LDO for the USB D+/D- transceiver, simplifying bus-powered designs. Typical applications include USB HID input devices (mouse, keyboard, gamepad), USB-to-serial COM-port bridges, USB flash-memory readers, USB joysticks/readers, low-speed industrial I/O modules with USB diagnostics, and legacy PC peripherals where 8-bit processing is sufficient. The integrated USB peripheral plus on-chip regulator make it particularly attractive for cost-sensitive, bus-powered designs. Design consideration: The USB module draws its 3.3V supply from the internal regulator; ensure adequate bulk decoupling at the VUSB pin (1 uF minimum). The FLASH programming voltage is generated on-chip from VDD; do not exceed 5.5V on any pin during in-circuit programming. This page synthesizes distributor stock and pricing data, the NXP/Freescale datasheet, and parametric drop-in alternatives not consolidated in any single manufacturer catalog.

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MC68HC908JB8JP - 8KB Flash 8-bit USB MCU 20-DIP | NXP
MC68HC908JB8JP

MC68HC908JB8JP - 8KB Flash 8-bit USB MCU 20-DIP | NXP

The NXP MC68HC908JB8JP is an 8-bit M68HC08 Family microcontroller with integrated USB 1.1 low-speed peripheral, 8KB of on-chip Flash memory, 256 bytes of USB buffer RAM, and 128 bytes of normal RAM, packaged in a 20-pin PDIP (Plastic Dual In-line Package) form factor for through-hole board mounting. What is an HC08 microcontroller? The HC08 is NXP/Freescale's 8-bit CISC microcontroller architecture derived from the original Motorola 6800. It uses a von Neumann unified memory map where program Flash, data RAM, and I/O registers share the same 16-bit address space (up to 64KB). HC08 parts are characterized by aggressive low-power design, Flash-based program storage for in-circuit reprogrammability, and a modular peripheral set that scales from small 8-pin controllers to USB-capable 20-pin devices like the JB8 family. The MC68HC908JB8JP runs the enhanced M68HC08 CPU at up to 3MHz internal bus rate from an external crystal or resonator, executing most instructions in 2 to 5 bus cycles. Its integrated USB 1.1 low-speed interface includes a 3.3V regulator, 1.5kohm pull-up resistor, and dedicated endpoint buffers (256 bytes of USB RAM), making it one of the lowest-cost ways to add USB device functionality to embedded designs without an external PHY. Typical applications include low-cost USB peripherals such as computer mouse/keyboard dongles, optical mice, game controllers, remote keyless entry (RKE) transmitters with USB programming, barcode scanners, and point-of-sale (POS) accessories. The 8KB Flash accommodates CDC, HID, or vendor-class USB firmware stacks with margin for bootloaders and product customization. When designing with the MC68HC908JB8JP, observe USB suspend current limits (typically under 500uA device-side), place the 4MHz crystal close to the OSC pins with short traces, and provide proper USB bus-powered decoupling. The 20-pin PDIP package suits breadboarding, prototype development, and through-hole field-installed products but is not recommended for high-volume surface-mount assembly, where the SOIC-20 variant is preferred.

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MC68HC908JB8JPE - 8-bit HC08 USB MCU, 8KB Flash | NXP
MC68HC908JB8JPE

MC68HC908JB8JPE - 8-bit HC08 USB MCU, 8KB Flash | NXP

The NXP MC68HC908JB8JPE is an 8-bit HC08-family microcontroller unit (MCU) with integrated USB device support, 8KB of on-chip Flash program memory, 256 bytes of RAM, and 13 general-purpose I/O lines, packaged in a 20-pin PDIP (through-hole DIP) commercial-temperature grade enclosure. It operates from a single 4.0V to 5.5V supply at an internal bus speed of 3 MHz, and embeds a low-voltage detect (LVD), power-on reset (POR), PWM module, and a USB 1.1 full-speed device controller - features that historically made it a popular choice for low-cost USB peripherals such as HID-class devices, custom HID mice/keyboards, USB-to-serial bridges, and USB-capable toys. Background: an 8-bit microcontroller is a single-chip computer built around an 8-bit data path that integrates a CPU core, program memory, RAM, and peripheral modules (timers, I/O, communications). Within the broader semiconductor taxonomy, the HC08 sits below 16-bit (HC12/HCS12) and 32-bit (ColdFire/ARM Cortex-M) NXP architectures and above simple 4-bit controllers; HC08 parts use a CISC instruction set, are programmed in C or assembly, and target cost-sensitive embedded applications. The 'JB' family specifically integrates a USB device controller, eliminating the need for an external USB transceiver IC and reducing BOM cost in legacy USB 1.1 designs. Key features include 8KB (8K x 8) of in-application-programmable Flash memory, 256 bytes of RAM, an integrated USB 1.1 full-speed device transceiver (12 Mbps), 13 bidirectional I/O pins, two timer/PWM channels, LVD and POR supervision, and a CISC HC08 CPU core running at 3 MHz internal bus speed. The 20-pin PDIP package (JPE suffix) is the through-hole variant of the family, and parts are supplied in tube packaging (RoHS-compliant per current distributor listings). The part is marked obsolete by current NXP lifecycle data, but it remains widely available from authorized distributors and the open market for legacy maintenance. Typical applications include legacy USB HID peripherals (mice, keyboards, game pads), USB-to-UART bridges, low-cost USB dongles for authentication and software protection dongles, industrial USB I/O expanders, and educational/development platforms where the on-chip USB simplifies hardware. The integrated USB transceiver eliminates external PHY circuitry, reducing PCB area and BOM cost compared to MCU-plus-external-PHY designs. When designing with this MCU, note that it is commercial temperature grade (0C to +70C) and is not AEC-Q100 qualified - for automotive or industrial extended-temperature applications, choose an industrial-grade variant or a modern Kinetis/LPC equivalent. Because the part is now obsolete, plan for lifecycle risk: source sufficient inventory for the product's expected lifetime, or migrate to a pin-compatible modern alternative. The USB module pins (PTE3/PTE4) double as 10 mA open-drain GPIO when USB is disabled.

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MC68HC908JK1CDW - 8-Bit 8MHz MCU 1.5KB Flash | NXP | 20-SOIC
MC68HC908JK1CDW

MC68HC908JK1CDW - 8-Bit 8MHz MCU 1.5KB Flash | NXP | 20-SOIC

The NXP (formerly Freescale/Motorola) MC68HC908JK1CDW is an 8-bit microcontroller unit (MCU) belonging to the low-cost, high-performance M68HC08 Family, featuring 1.5KB of on-chip Flash memory, an 8MHz CPU, and housed in a 20-pin SOIC wide-body package. The device is built on Freescale's customer-specified integrated circuit (CSIC) design strategy and serves cost-sensitive embedded applications. Core headline parameters include 1.5KB program Flash, 128B RAM, an 8MHz bus rate, and a 20-SOIC (0.295" / 7.50mm width) package rated for industrial temperature grades. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (Flash/RAM), and peripherals (timers, ADC, communication interfaces) into one IC. Within the broader taxonomy, this part sits at: MCU -> 8-bit microcontroller -> embedded controller -> semiconductor IC. The M68HC08 family in particular succeeded the older M68HC05 architecture with an enhanced M68HC08 central processing unit, supporting a more powerful instruction set with a 16-bit stack pointer and index register while keeping the same low-cost philosophy. The M68HC908JK1 (and the closely related JL3) is the entry-level 20-pin variant aimed at simple control tasks. Key electrical features of the MC68HC908JK1CDW include a 3V to 5.5V supply operating range (typical 5V), an 8MHz internal bus oscillator, low-power stop and wait modes, an internal real-time interrupt, and an enhanced serial communications interface (ESCI) plus a serial peripheral interface (SPI). On-chip memory map comprises 1.5KB of Flash for application code, 128 bytes of RAM for variables, and 128 bytes of Flash for user vector space. The device integrates a 6-channel, 8-bit analog-to-digital converter (ADC) for sensor interfacing and a 16-bit, 2-channel timer interface module (TIM) for capture/compare/PWM generation. Typical applications include white-goods control (washing machines, dishwashers), simple sensor acquisition boards, low-cost motor-control user interfaces, remote controls, security keypads, and small appliances. The 20-SOIC footprint and industrial temperature rating allow direct drop-in replacement of legacy M68HC05 designs during migration to the more powerful HC08 instruction set. A key design consideration when laying out a PCB for the MC68HC908JK1CDW is decoupling: place a 100nF ceramic bypass capacitor as close as possible to each VDD/VSS pair, and add a bulk 10uF tantalum or aluminum electrolytic capacitor near the supply pins. The internal voltage regulator and analog ADC also benefit from a separate AVSS/AVDD pair with its own low-pass filter to reject digital switching noise from corrupting ADC conversions. The figure commonly cited for the datasheet is approximately 212 pages across the JL3/JK1 datasheet family, providing full electrical specifications, programming model, and peripheral register descriptions. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet itself.

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MC68HC908JK1CP - 8-Bit HC08 MCU 1.5KB Flash 8MHz DIP-20 | NXP
MC68HC908JK1CP

MC68HC908JK1CP - 8-Bit HC08 MCU 1.5KB Flash 8MHz DIP-20 | NXP

The NXP (formerly Motorola/Freescale) MC68HC908JK1CP is a low-cost, high-performance 8-bit microcontroller from the M68HC08 family, featuring 1.5KB of on-chip FLASH program memory, 128 bytes of RAM, and an 8 MHz internal bus clock, all housed in a 20-pin PDIP (plastic DIP) through-hole package. It uses the enhanced M68HC08 central processor unit (CPU08) with a customer-specified integrated circuit (CSIC) design strategy, supporting up to 16 KB of linear address space. An MCU (microcontroller unit) is a single-chip computer that integrates a CPU, memory, and programmable I/O peripherals. The 8-bit MCU category sits below 16-bit and 32-bit microcontrollers in cost-sensitive embedded applications, and the M68HC08 family specifically targets low-cost, high-volume designs such as consumer appliances, simple motor controllers, and battery-powered devices. The 908JK1 variant belongs to the sub-family that combines HC08 core, FLASH memory, and a minimal pin count for cost-optimized boards. Key features include a 15-channel analog multiplexer with 8-bit ADC, 23 general-purpose I/O lines, a 16-bit timer with capture/compare/PWM, an internal clock generator, low-power STOP and WAIT modes, and an in-system programmable FLASH for field updates. The part operates across an extended voltage range with on-chip voltage regulator, and supports external crystal/ceramic resonator or RC oscillator inputs. The M68HC908JK1 utilizes the HC08 CPU architecture with a 16-bit stack pointer, 16-bit index register, and a powerful bit-manipulation instruction set. On-chip peripherals are mapped into a unified memory space with the FLASH and RAM, and an internal monitor ROM supports FLASH programming and in-circuit emulation. The HC08 core is fully upward-compatible with the legacy HC05 instruction set while doubling internal bus performance. Typical applications include low-cost remote controls, small appliance controllers (toasters, fans, washing machines), battery chargers, automotive body electronics (interior lighting, simple sensor nodes), toy and hobby electronics, security keypads, and LED lighting control. Its 20-pin PDIP form factor is preferred for prototyping and educational use, where socketed or breadboard-friendly through-hole mounting simplifies iteration. When designing with this device, ensure the supply voltage decoupling network follows the manufacturer's reference design (typically a 100 nF ceramic plus a bulk tantalum or electrolytic capacitor close to VDD/VSS pins). The internal ADC requires careful PCB layout to avoid digital switching noise coupling into the analog input channel; keep analog traces short and shield them with a ground pour where possible. This page synthesizes distributor pricing, drop-in alternatives within the M68HC08 family, and practical design notes not found in the standalone manufacturer datasheet.

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MC68HC908JK1ECDW - 8-Bit 8MHz MCU, 1.5KB FLASH, 20-SOIC | NXP
MC68HC908JK1ECDW

MC68HC908JK1ECDW - 8-Bit 8MHz MCU, 1.5KB FLASH, 20-SOIC | NXP

The NXP MC68HC908JK1ECDW is an 8-bit microcontroller unit from the M68HC08 family with 1.5KB of on-chip FLASH program memory, 128 bytes of RAM, and a maximum CPU clock frequency of 8MHz, housed in a 20-pin SOIC (DW) wide-body package rated for the extended -40C to +85C operating range. What is an HC08 microcontroller? The HC08 is a family of 8-bit microcontrollers introduced in the early 1990s by Motorola (later Freescale, now NXP Semiconductors) using the M68HC08 central processor unit core. An HC08 MCU integrates CPU, FLASH/ROM program memory, RAM, timers, an A/D converter, and flexible I/O onto a single chip using a customer-specified integrated circuit (CSIC) design strategy, placing HC08 in the broader hierarchy of 8-bit MCU -> microcontroller -> embedded controller -> semiconductor IC. The MC68HC908JK1ECDW belongs to the low-cost JK1 sub-family targeting cost-sensitive applications. Key features include 15 general-purpose I/O pins, an on-chip 12-channel 8-bit ADC, two 16-bit dual-function timer channels, a serial communications interface (SCI), and an internal oscillator with trimming capability. The device supports in-system programming and in-application programming via the ROM-resident monitor, simplifying field firmware updates without an external programmer. The architecture centers on the enhanced M68HC08 CPU with a 16-bit stack pointer and 16-bit index register, enabling compact C-language code and efficient stack usage. The internal bus runs at one-half the oscillator frequency, and the FLASH controller supports security features including a programmable block-protect register to prevent unauthorized read-back of firmware. Typical applications include appliance control modules, simple sensor interface boards, low-end motor-control BLDC drivers, HVAC thermostat controllers, automotive body electronics, and consumer white goods. The wide operating temperature and low cost make JK1 a popular choice for high-volume, cost-optimized designs. A core design consideration is the trade-off between internal oscillator accuracy and external crystal cost: the trimmed internal oscillator is suitable for UART baud timing tolerance of approximately +/-2%, but precision timing applications should add an external 32.768kHz crystal or ceramic resonator to the OSC1/OSC2 pins. This page synthesizes distributor stock data, drop-in compatible same-family alternatives, and practical design notes not aggregated on a single distributor page.

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MC68HC908JK8CDW - 8KB Flash 8-Bit HC08 MCU, 20-SOIC | NXP
MC68HC908JK8CDW

MC68HC908JK8CDW - 8KB Flash 8-Bit HC08 MCU, 20-SOIC | NXP

The NXP MC68HC908JK8CDW is an 8-bit microcontroller unit (MCU) from the M68HC08 family with 8KB of on-chip FLASH program memory, housed in a 20-pin SOIC (DW) package. It features an HC08 CPU core running at up to 8 MHz internal bus clock, 256 bytes of RAM, 15 general-purpose I/O lines, and an integrated Serial Communications Interface (SCI). On-chip peripherals include an LED driver, Low-Voltage Detection (LVD), Power-On Reset (POR), and Pulse-Width Modulation (PWM) channels for motor and lighting control. An 8-bit MCU (microcontroller unit) is a single-chip computer that integrates a CPU, RAM, program memory, and peripherals on one die, optimized for cost-sensitive embedded control. The HC08 architecture is a CISC (Complex Instruction Set Computer) design using a Von Neumann memory map, where program and data share the same address space - a hallmark of the Motorola/Freescale/NXP 68xx lineage. Within the broader taxonomy, the MC68HC908JK8 belongs to the 8-bit MCU segment of microcontrollers (MCU), which sits below 16-bit and 32-bit MCUs in processing power but excels in BOM-cost-sensitive applications. Key features include 8KB FLASH program memory (8K x 8), 256 bytes of SRAM, 15 GPIO pins, an on-chip oscillator with trimming, and multiple power-saving modes. The device operates from a typical 5V supply (extended range supported) and integrates an LED drive capability that can source/sink sufficient current to directly control indicator LEDs without external transistors in many designs. The HC08 core executes M68HC08 instruction set with enhanced addressing modes over the predecessor HC05 family. The integrated FLASH allows in-system reprogramming via the standard background debug mode (BDM), enabling field updates and reducing development-cycle time. The 8 MHz maximum bus frequency balances instruction throughput against power consumption for typical consumer and industrial control tasks. Typical applications include appliance control panels, LED lighting controllers, simple motor drivers (small fans, pumps), remote-control transmitters, security keypads, and low-cost toy/consumer products. The combination of FLASH, PWM, and SCI in a 20-pin SOIC footprint makes it well-suited for compact, cost-constrained designs that still demand reprogrammability. When designing with this part, ensure the supply voltage stays within the supported range and provision adequate decoupling (typically 100 nF plus a bulk cap) close to the VDD pins. For production programming, the BDM interface (BKGD/MS pins) is the standard path - plan the PCB to expose these test points for in-circuit firmware updates. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the standalone datasheet, helping engineers source this legacy HC08 part and evaluate obsolescence risk.

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MC68HC908JL3CP - 8MHz 8-bit HC08 MCU 4KB FLASH 28-PDIP | NXP
MC68HC908JL3CP

MC68HC908JL3CP - 8MHz 8-bit HC08 MCU 4KB FLASH 28-PDIP | NXP

The NXP MC68HC908JL3CP is a member of the M68HC08 Family of 8-bit microcontroller units (MCUs), featuring an 8 MHz CPU clock, 4 KB of on-chip FLASH program memory, and housed in a 28-pin PDIP (Plastic Dual In-line Package). It operates from a wide voltage range and integrates a 12-channel, 8-bit ADC alongside standard HC08 peripherals for cost-sensitive embedded designs. Background: An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (FLASH/ROM), working memory (RAM), and I/O peripherals into one package. The HC08 family is based on NXP's (formerly Motorola/Freescale) customer-specified integrated circuit (CSIC) design strategy, an upgrade path from the older HC05 architecture. The '908 prefix denotes a FLASH-based variant with on-chip in-system programming capability, while the JL3 sub-family denotes a low-cost, low-pin-count member aimed at consumer and appliance markets. Key features include 4 KB FLASH program memory (4K x 8 organization), 128 bytes of RAM, an internal bus clock of up to 8 MHz, 23 general-purpose I/O pins, an 8-bit ADC with up to 12 channels depending on package, two 16-bit timers, a serial communications interface (SCI), and a serial peripheral interface (SPI). The CPU08 core provides upward source-level compatibility with the legacy HC05 and enhanced addressing modes including indexed with offset. Architecture depth: The MC68HC908JL3CP uses a Von Neumann bus structure with a 16-bit program counter and 8-bit data bus. FLASH programming is supported via monitor ROM and a single-wire background debug interface, simplifying prototyping. The part includes a low-voltage inhibit module, computer operating properly (COP) watchdog, and external asynchronous interrupt inputs for robust field behavior. Typical applications include white-goods motor control (washing machines, dishwashers), small appliance controllers, consumer remote controls, low-end security keypads, HVAC thermostat front-ends, and battery-powered sensor interfaces. Its wide operating voltage and CMOS low-power modes support both line-powered and portable designs. When designing with this part, budget for an external crystal or RC oscillator source and consider programming the FLASH via monitor mode for low-volume production. For automotive-grade requirements, evaluate the equivalent -Q suffix variant.

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MC68HC908JL3ECDW - 8-bit HC08 MCU, 4KB Flash, 8MHz | NXP
MC68HC908JL3ECDW

MC68HC908JL3ECDW - 8-bit HC08 MCU, 4KB Flash, 8MHz | NXP

The NXP MC68HC908JL3ECDW is an 8-bit HC08-family microcontroller IC featuring 4 KB of on-chip FLASH program memory, an 8 MHz CPU clock, and a 28-pin SOIC (DW) wide-body package. According to distributor listings, the device integrates the enhanced M68HC08 central processor (CPU08) and is positioned as a low-cost, high-performance CSIC (customer-specified integrated circuit) variant for general-purpose embedded control. An 8-bit microcontroller (MCU) is a single-chip computer that combines a CPU, RAM, ROM/FLASH, and peripheral interfaces on one die. The 8-bit HC08 architecture from NXP (formerly Freescale and Motorola) is a classic CISC core widely used in cost-sensitive applications such as appliance control, automotive body electronics, industrial timers, and simple sensor interfaces. MCUs in the wider hierarchy sit under microcontrollers, then embedded processors, then integrated circuits. The M68HC08 family is based on the Customer-Specified Integrated Circuit (CSIC) design strategy, which allows multiple flash/RAM/package variants from the same silicon platform. Key features of the MC68HC908JL3ECDW include 4 KB FLASH (4K x 8), an 8 MHz maximum internal bus frequency, an integrated timer module, and a 28-SOIC wide-body package suitable for hand-soldered prototypes and through-hole-style PCB layouts converted to surface mount. The HC08 instruction set is binary-compatible across the family, enabling code reuse between JL3, JK3 and JK1 variants. The part uses a Harvard-style internal architecture with unified addressing for code and data in the CPU08 core. The 8 MHz internal bus speed delivers roughly 1 MIPS of effective throughput at the standard HC08 instruction cycle ratio. On-chip peripherals and FLASH simplify board design by removing external program memory and reducing BOM cost. Typical applications include low-end white-goods controllers (washing machines, microwaves), HVAC thermostats and timers, simple remote controls, automotive accessory modules, and industrial sensor signal conditioners. The wide SOIC footprint eases lab rework and is friendly to low-density two-layer boards. Designers should be aware that the M68HC08JL3E family has been declared "Not Recommended for New Design" (NRND) on NXP's product page and that any new project should evaluate S08, S12 or ARM Cortex-M alternatives. Existing boards, however, can continue to be serviced by NXP and authorized distributors, and the SWD/background-debug-mode (BDM) toolchain remains supported. This page consolidates distributor pricing, same-family drop-in alternatives, and practical design notes not found in the original manufacturer datasheet, giving engineers a one-stop reference for sourcing and reusing this legacy 8-bit MCU.

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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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