Overview
8-bit microcontroller (MCU) launched by NXP (formerly Freescale ) , based on the HC08 architecture , integrating FLASH memory, A/D converter, serial communication interface , and has low power consumption and high reliability. It is suitable for home appliance control, industrial automation, automotive electronics and embedded systems . This MCU provides flexible I/O ports and a variety of peripherals, making it an ideal choice for entry-level embedded control applications.

Specifications
parameter | Numeric |
CPU Cores | HC08 (8-bit) |
Operating frequency | 8MHz |
FLASH memory | 8KB |
RAM | 512B |
EEPROM | none |
I/O Ports | 15 GPIOs |
A/D Converter | 8 channels, 10 bits |
Communication interface | SCI (Serial Communication Interface) |
Timer | 2 16-bit timers |
Operating voltage | 2.7V to 5.5V |
Package Type | 32-pin LQFP (CFAE) |
Operating temperature range | -40°C to +85°C |
MC68HC908GR8CFAE’s outstanding features
High performance 8-bit HC08 core
It uses HC08 CPU , supports up to 8MHz clock speed , and has good instruction execution efficiency.
On-chip 8KB FLASH memory
Allows users to store and update programs without external memory, suitable for embedded applications.
10-bit A/D converter
Provides 8 channels for sensor interfacing, signal acquisition, and precision measurement
Rich peripheral interfaces
15 GPIO ports for input/output control, motor drive, switch detection , etc.
SCI serial communication interface can be used for data transmission with other MCU, PC, and external devices .
Low power working mode
Supports WAIT and STOP low power modes , suitable for battery-powered devices to optimize energy efficiency.
Wide operating voltage range (2.7V to 5.5V)
It can operate stably under low voltage battery power supply or standard 5V power supply environment.
Industrial temperature support (-40°C to +85°C)
Suitable for automotive electronics, industrial control and harsh environment applications .
Application Areas
MC68HC908GR8CFAE is widely used in the following fields due to its high reliability, low power consumption and rich peripherals :
Home appliance control
Temperature control, button control and motor drive for smart washing machines, microwave ovens, rice cookers and other equipment .
Industrial Automation
Industrial automation control applications such as sensor interface, remote monitoring, PLC modules , etc.
Automotive Electronics
On-board instrumentation, motor control, and door control modules support a wide temperature range and stable operation.
Embedded Systems
as low-power IoT devices, data loggers, smart switches , etc.
Motor Control
Accurately control small DC motors and stepper motors through GPIO and timers .
Comparative Analysis: MC68HC908GR8CFAE vs. Other 8-bit MCUs
Features/Specifications | MC68HC908GR8CFAE | Other 8-bit MCUs on the market |
CPU Cores | HC08 | AVR / PIC / 8051 |
Operating frequency | 8MHz | 4MHz – 16MHz |
FLASH memory | 8KB | 4KB – 16KB |
RAM | 512B | 256B – 2KB |
A/D Converter | 8 channels, 10 bits | 6-12 bits / 4-8 channels |
Communication interface | SCI (Serial Communication) | UART / I²C / SPI |
Low Power Mode | yes | Partial support |
Operating voltage | 2.7V to 5.5V | 2V to 5V |
MC68HC908GR8CFAE has a stable HC08 architecture, a large FLASH memory, rich peripheral interfaces and a wide operating voltage range , and has a good cost-effectiveness in the fields of home appliance control, industrial automation and automotive electronics .
Manufacturer introduction: NXP (formerly Freescale)
NXP Semiconductors is a leading global supplier of microcontrollers and embedded processing , focusing on automotive electronics, industrial control and IoT solutions. MC68HC908GR8CFAE is one of its classic HC08 series 8-bit MCUs, which is widely used in consumer electronics, industrial automation and automotive control .
Why choose MC68HC908GR8CFAE?
HC08 classic 8-bit architecture provides high stability and low power consumption solutions
Integrated 8KB FLASH memory , supports program upgrades, simplifies system design
Supports 8-channel 10-bit ADC , suitable for sensor interface and analog signal acquisition
Rich I/O ports and serial communication interfaces , compatible with a variety of peripherals and communication protocols
Industrial grade temperature range (-40°C to +85°C) for use in harsh environments
Supports low power mode to extend battery life , suitable for IoT and portable devices
FAQ
Q 1 : Can this device be In-Circuit Programming (ISP)?
A: Yes, MC68HC908GR8CFAE supports In-System Programming (ISP) via FLASH self-programming . No additional dedicated programmer is required to update the firmware in the system, which is convenient for debugging and maintenance.
Q 2 : Is this MCU suitable for learning embedded systems?
A: Suitable! MC68HC908GR8CFAE has a simple architecture, rich peripherals, and a stable HC08 core , making it suitable as an entry-level MCU for embedded development . Its low power consumption, easy-to-use instruction set , and good development ecosystem make it an ideal device for learning microcontroller programming and embedded system design.
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