MCHC908JW32FAE - 8-Bit 8MHz 32KB MCU | NXP | Industrial
MPN: MCHC908JW32FAE ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.9526 | $3.95 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
MCHC908JW32FAE Overview
What is an 8-bit microcontroller? An 8-bit microcontroller is a compact embedded processor that executes instructions using an 8-bit data path. The MCHC908JW32FAE belongs to the M68HC08 family, combining a CPU08 processor, flash program memory, and embedded peripherals in one integrated circuit. Its low-cost architecture and fixed-width data path make it useful for control tasks that do not require the processing power or memory bandwidth of a 16-bit or 32-bit MCU.
Verified distributor information identifies the device as an 8 MHz, 8-bit HC08 MCU with 32 KB flash and a 48-LQFP package. The package provides 48 external leads and is suitable for automated surface-mount assembly. The part is listed under both Freescale Semiconductor and NXP in distributor records, reflecting the product's legacy manufacturer identity and current distributor cataloging. Detailed electrical limits, peripheral specifications, memory maps, and timing values require confirmation from the manufacturer datasheet.
The device is particularly relevant to designs migrating or maintaining HC08-based embedded products. Its 32 KB flash capacity provides space for boot logic, application code, state machines, and communication routines. The 8 MHz CPU clock supports real-time control tasks while keeping the implementation focused and economical. Because the available verified data does not provide RAM size, I/O count, voltage range, timer resources, or peripheral details, those values must be checked against the datasheet before final design release.
Typical applications include industrial control panels, small motor-control systems, appliance controllers, measurement equipment, and legacy embedded modules. The 48-LQFP footprint is important when replacing an existing design: the PCB land pattern, pin functions, supply requirements, clock configuration, and firmware assumptions must all be checked. This product should be selected only when the original HC08 memory map and peripheral arrangement are required.
A key design consideration is documentation availability. Search results identify a 232-page M68HC08 Microcontrollers datasheet, but the supplied data does not expose its document number, revision, or a verified manufacturer PDF URL. Engineers should obtain the current Freescale/NXP datasheet from the manufacturer or an authorized technical archive before making pin-level or timing-dependent decisions. This page synthesizes verified distributor data, package information, application guidance, and sourcing links without inventing missing electrical parameters.
Drop-in alternatives for MCHC908JW32FAE — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MCHC908JW32FAE (same form factor and footprint) — differing in Package, Program Memory Size, RAM Size, ADC, Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MCHC908JW32FC
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View Datasheet →MCHC908GR8CFAE
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View Datasheet →MC908AP32CFAER
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View Datasheet →MC68HC908JL8MFAE
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View Datasheet →MCHC908JW32FHE
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View Datasheet →MCHC908JW32FAE Maximum Ratings & Electrical Characteristics
| Product Type | 8-bit microcontroller |
| Architecture | 8-bit CISC |
| CPU / Processor | Enhanced M68HC08 CPU08 |
| Maximum Clock Frequency | 8 MHz |
| Flash Memory | 32 KB |
| Flash Organization | 32K x 8 |
| Operating Voltage | 5 V |
| Package | 48-LQFP, 7 x 7 mm |
| Pin Count | 48 pins |
| Mounting Type | Surface mount |
| Manufacturer | Freescale Semiconductor, Inc. |
| Current Catalog Manufacturer | NXP Semiconductors |
| Device Family | M68HC08 |
| Datasheet File Size | 2 MB |
| Datasheet Page Count | 232 pages |
| Datasheet Publication Date | 2012-03-29 |
MCHC908JW32FAE 48-lqfp, 7 x 7 mm Pin Configuration Guide
Pin configuration for MCHC908JW32FAE (48-lqfp, 7 x 7 mm package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for MCHC908JW32FAE.
Refer to the datasheet for full pin configuration.
Typical Applications
MCHC908JW32FAE is suitable for 6 applications: Industrial Control Panel, Appliance Controller, Legacy HC08 Product Maintenance, Small Motor Sequencing, Measurement and Instrumentation, Embedded Data Logger.
Industrial Control Panel
MCHC908JW32FAE fits an HC08-based control panel where the controller must execute fixed logic for inputs, indicators, relays, and operator sequences. Its verified 8 MHz clock provides a straightforward timing base for simple state machines, while 32 KB of flash supports application code, lookup tables, and communication routines. The 48-LQFP 7 x 7 mm package is useful when the existing board already uses that footprint. Before release, verify RAM capacity, I/O count, timer resources, voltage tolerance, and environmental limits against the M68HC08 datasheet.
Recommended
Appliance Controller
Use MCHC908JW32FAE in an appliance controller when the product requires a compact, deterministic embedded controller rather than a high-level processor. The verified 8 MHz CPU and 32 KB flash can support mode selection, timing, motor sequencing, sensor interpretation, and user-interface logic. Its 48-LQFP package is appropriate for automated PCB assembly when the mechanical footprint is already established. The design must confirm whether the application needs features such as EEPROM, ADC, PWM, serial interfaces, or a watchdog that are not specified in the supplied distributor data.
Recommended
Legacy HC08 Product Maintenance
MCHC908JW32FAE is particularly relevant for maintenance of an existing HC08-based product because the verified part identity includes the M68HC08 family, CPU08 architecture, 8 MHz operation, and 32 KB flash. Maintaining the original architecture can reduce firmware migration risk when board layout, memory addresses, interrupt behavior, and peripheral assumptions are already validated. For repair or second-source qualification, compare the complete ordering code, package drawing, electrical limits, timing, and temperature grade rather than relying on the family name alone.
Recommended
Small Motor Sequencing
MCHC908JW32FAE can serve as the sequencing controller for a small motor or actuator system when the application uses simple timing and discrete control outputs. The 8 MHz HC08 processor is fast enough for coordinated start, stop, reversal, timeout, and fault sequences, while 32 KB flash can hold the control tables and state machine. The supplied data does not specify PWM channels, timer widths, current limits, or motor-driver outputs, so those requirements must be checked from the datasheet and the chosen external driver before committing to the MCU.
Recommended
Measurement and Instrumentation
For measurement and instrumentation, MCHC908JW32FAE can host basic acquisition sequencing, calibration constants, display updates, and communications logic. Its 32 KB flash is adequate for fixed instrumentation firmware, and the 8 MHz clock supports deterministic sampling-control loops when peripheral timing permits. However, the verified results do not identify ADC resolution, sensor interfaces, comparator resources, or timer accuracy. Instrument designers should verify analog resources and calibration support in the full datasheet and use external converters or sensors when those functions are absent.
Recommended
Embedded Data Logger
MCHC908JW32FAE can support a compact data logger when records are buffered locally and transferred through a suitable external interface. The 32 KB flash store can hold firmware and configuration logic, while the 8 MHz CPU manages sampling, timestamps, buffering, and status reporting. The available data does not specify RAM, EEPROM, serial peripherals, or flash endurance, so engineers should size the buffer and validate write-cycle requirements from the manufacturer documentation. The 48-LQFP footprint also helps when replacing an existing surface-mount controller.
Recommended
Recommended Products Summary
Engineering reference data for MCHC908JW32FAE — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MCHC908JW32FC | MCHC908GR8CFAE | MC908AP32CFAER | MC68HC908JL8MFAE | MCHC908JW32FHE |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
Key Differentiators
- Verified 8 MHz operating point (vs MCHC908JW32FHE)
- 32 KB flash memory (vs MC908AP32CFAER)
- 48-LQFP 7 x 7 mm package (vs MCHC908GR8CFAE)
- HC08 CPU08 family continuity (vs MC68HC908JL8MFAE)
Design Notes
Do not treat a related HC08 or MCHC908 part as a substitute from the family name alone. Confirm the exact 48-LQFP land pattern, pin numbering, power pins, reset connection, clock pins, I/O functions, memory map, and peripheral addresses. The supplied web results do not provide a complete pinout for MCHC908JW32FAE, so a hardware substitution requires comparison of the actual manufacturer package drawing and datasheet.
Use the verified 48-LQFP 7 x 7 mm footprint as the starting point for PCB layout, but verify body dimensions, lead pitch, pin numbering, and any exposed thermal or ground structure from the official package drawing. Preserve adequate clearance around the package and route sensitive clock and reset signals away from high-current switching nodes. Because the supplied results do not identify exposed-pad details, do not infer thermal-pad connectivity from the generic LQFP designation.
The verified distributor result lists a 5 V operating condition, but it does not provide input-voltage limits, current consumption, or power dissipation. Before connecting the MCU, confirm the complete supply range and external component requirements in the manufacturer datasheet. Ensure the regulator has adequate transient response and local decoupling for the device, while avoiding assumptions about unused I/O states or maximum port-current limits that are absent from the supplied data.
Place the MCU close to the oscillator, reset circuitry, decoupling capacitors, and any memory or communication components to minimize loop area and propagation delay. Follow the verified 8-bit clocking architecture rather than assuming a modern high-speed MCU pinout. If the design depends on interrupt timing or serial communication, validate signal integrity and timing against the actual datasheet; the supplied search data confirms 8 MHz operation but does not provide peripheral timing values.
An LQFP package provides a defined mechanical and thermal path, but no verified junction-temperature, power-dissipation, or thermal-resistance data was supplied. Estimate device heating only after obtaining the electrical current and operating-temperature limits from the manufacturer documentation. For normal 5 V legacy-controller operation, provide copper area and airflow appropriate to the verified package and board construction, and measure junction temperature indirectly through board temperature or an approved reliability method during qualification.
Compliance Information
The supplied distributor snippets do not explicitly confirm RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is not applicable because the part is not presented as an automotive-qualified MCU in the supplied data.