MC908LK24CPKR2 - 8-Bit 8MHz 24KB Flash MCU | NXP | LQFP-80
MPN: MC908LK24CPKR2 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
MC908LK24CPKR2 Overview
A microcontroller is a semiconductor device that integrates a CPU core, memory, and peripherals into one programmable component. The HC08/S08 family belongs to the broader embedded processor hierarchy: 8-bit microcontroller → embedded microcontroller → embedded semiconductor. Compared with discrete logic controllers, this device provides reusable firmware, configurable peripherals, and a compact control platform for industrial equipment, consumer products, and legacy embedded platforms.
The key verified parameters are the 8-bit CPU, 8 MHz operating frequency, and 24 KB flash memory. The 80-LQFP package provides 80 physical pins, allowing the design to expose more peripheral and signal connections than a small-outline package. The 12 mm by 12 mm package dimensions are explicitly identified in distributor data. Other electrical limits, RAM capacity, timer counts, analog specifications, pin functions, operating voltage, and temperature limits are not provided in the verified data and therefore require manufacturer-documentation review.
Typical applications include small industrial controllers, appliance control boards, instrumentation interfaces, and legacy embedded systems. An HC08 device is appropriate when the application benefits from 8-bit control simplicity, deterministic firmware execution, and a compact single-chip integration level. The 80-pin package may help reduce the need for external logic when several inputs, outputs, communications, or analog-connected resources are required.
Before layout or firmware migration, verify the complete pinout, memory map, peripheral assignments, clock requirements, and electrical limits in the official MC908LK24CPKR2 datasheet. Do not treat distributor package labels as a substitute for the manufacturer’s electrical and pin-function documentation. This page summarizes verified sourcing information and clearly identifies parameters that still need confirmation.
This product data combines distributor identification, verified MPN specifications, sourcing context, package details, and engineering-oriented design guidance. It does not invent unavailable RAM, voltage, timing, or peripheral specifications.
Drop-in alternatives for MC908LK24CPKR2 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MC908LK24CPKER
✅ Drop-In📋 Reference alternative (not in catalog)
MC908LK24CPKR
✅ Drop-In📋 Reference alternative (not in catalog)
MC908LK24CPKR2 Maximum Ratings & Electrical Characteristics
| Product Type | HC08/S08 8-bit microcontroller |
| CPU Architecture | 8-bit |
| Operating Frequency | 8 MHz |
| Flash Memory | 24 KB (24K x 8) |
| Program Memory Type | Flash |
| Package | 80-LQFP (12 x 12 mm) |
| Package Pin Count | 80 pins |
| Manufacturer | Freescale Semiconductor, now NXP Semiconductors |
| Device Family | HC08 |
| Core Family | HC08/S08 |
| Mounting Type | Surface mount |
| Lifecycle Status | unknown |
MC908LK24CPKR2 80 pins Pin Configuration Guide
Pin configuration for MC908LK24CPKR2 (80 pins 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 MC908LK24CPKR2.
Refer to the datasheet for full pin configuration.
Typical Applications
MC908LK24CPKR2 is suitable for 6 applications: Industrial Equipment Control, Appliance and Household Control, Instrumentation Interface, Legacy Communication Gateway, Data Acquisition and Control Card, Educational and Legacy Platform Retrofit.
Industrial Equipment Control
The MC908LK24CPKR2 fits legacy industrial equipment control where an 8-bit controller can manage sensors, actuators, sequencing logic, and service interfaces in one integrated package. Its verified 8 MHz HC08/S08 core provides a defined execution target, while 24 KB flash supports fixed control firmware and configuration tables. The 80-LQFP package is useful when the controller needs more external connections than a small-outline MCU provides. Before design release, confirm voltage limits, I/O levels, timer resources, watchdog behavior, and long-term availability in the exact datasheet.
Recommended
Appliance and Household Control
For appliance and household equipment, the MC908LK24CPKR2 can serve as the central controller for motor sequencing, user inputs, display interfaces, and discrete output control. The verified 8-bit CPU and 8 MHz clock are appropriate for deterministic embedded firmware, while 24 KB flash provides room for state-machine logic and configuration constants. The 80-LQFP footprint allows additional connections for sensors and power-control interfaces. Confirm the device’s exact I/O mapping and electrical limits before substituting it into a newer appliance platform.
Recommended
Instrumentation Interface
The MC908LK24CPKR2 may be suitable for instrumentation interfaces that combine local control with multiple external signal connections. Its verified 80-LQFP package provides a larger pin-count platform than typical small-outline controllers, and the 24 KB flash capacity can hold protocol handlers, calibration data, and menu logic. The 8-bit architecture is most suitable when control complexity remains modest and the system prioritizes deterministic behavior over high arithmetic throughput. Verify ADC, communication, timing, and pin-level support because these specifications are not included in the supplied web data.
Recommended
Legacy Communication Gateway
The HC08/S08 architecture can be used in legacy communication equipment where firmware compatibility and deterministic control are more important than maximum CPU performance. MC908LK24CPKR2’s verified 24 KB flash provides storage for protocol routines and configuration, while the 80-pin package offers potential connections for serial, status, and control signals. The available data does not identify specific UART, SPI, CAN, or other communication peripherals, so those functions must be confirmed from the exact manufacturer datasheet before selecting the device for a gateway design.
Recommended
Data Acquisition and Control Card
A data-acquisition front end can use the MC908LK24CPKR2 when local sequencing and control are sufficient, with external amplifiers, sensors, or converters handling analog conditioning. The verified 8 MHz clock and 8-bit CPU suit deterministic sampling and threshold logic, and 24 KB flash can hold acquisition state machines and calibration constants. The 80-LQFP package offers many external connections for sensor enables, digital data, status LEDs, and communication. Confirm ADC availability, sampling specifications, input voltage, and timing before committing this architecture.
Recommended
Educational and Legacy Platform Retrofit
The MC908LK24CPKR2 is relevant to educational, repair, and retrofit projects that depend on an established HC08/S08 instruction set and legacy development ecosystem. Its verified 8-bit core, 8 MHz operation, and 24 KB flash make the part recognizable for maintaining existing HC08 firmware rather than redesigning the control architecture. The 80-LQFP package still requires a precise footprint and pin assignment review. Educational users should also confirm programmer, debugger, compiler, and documentation availability because those details are not supplied here.
Recommended
Recommended Products Summary
Engineering reference data for MC908LK24CPKR2 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MC908LK24CPKER | MC908LK24CPKR |
|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| CPU Architecture | 8-bit | 8-bit | 8-bit |
| Core Family | HC08/S08 | HC08 | HC08 |
Key Differentiators
- Verified 8 MHz HC08/S08 control platform (vs Generic non-HC08 8-bit replacement)
- 24 KB flash in the identified ordering code (vs MC908LK24CPKER)
- High-pin-count 80-LQFP integration (vs MC908LK24CPKER)
Design Notes
Do not approve a replacement or board revision based only on the distributor phrase “8 MHz, 24 KB Flash, 80-LQFP.” Confirm the exact suffix, package drawing, pin names, power pins, reset behavior, clock pins, programming interface, and electrical limits in the official MC908LK24CPKR2 documentation. Related ordering codes such as MC908LK24CPKER may appear similar but are not verified as interchangeable.
Treat the 80-LQFP footprint as a high-pin-count fine-pitch layout problem. Use the manufacturer’s land-pattern dimensions, confirm pin numbering orientation, maintain appropriate solder-mask and paste geometry, and inspect assembly clearance around the package perimeter. The verified source gives the 12 mm by 12 mm body size but does not provide the full mechanical drawing, so generic package dimensions are not sufficient for fabrication.
Before connecting external sensors or actuators, verify the MCU’s supply-voltage range, I/O voltage limits, input thresholds, output drive capability, and absolute maximum ratings. The supplied data confirms 8 MHz and 24 KB flash but not electrical limits. Power sequencing, decoupling, ground return, and any level translation must therefore be based on the exact official datasheet rather than inferred from the HC08/S08 family name.
For firmware migration, preserve the original clock, memory, interrupt, timer, and peripheral assumptions until they are checked against the replacement part’s documentation. A device with the same flash size and clock can still differ in RAM, peripheral mapping, pin multiplexing, startup behavior, or debug programming. Build a small validation harness that checks reset, boot, clock stability, peripheral timing, and representative I/O before production release.
Compliance Information
The supplied verified web data does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. Obtain current supplier and manufacturer declarations before regulated use.
