MC908JK3ECDWE Description

The 8-bit M68HC08 Family of low-cost, high-performance microcontrollers includes the MC908JK3ECDWE (MCUs). The customer-specified integrated circuit (CSIC) design approach is the foundation of the M68HC08 Family. All MCUs in the family feature the improved MC908JK3ECDWE central processing unit (CPU08), and they come in a range of package formats, memory capacities, and module options.

MC908JK3ECDWE Features

• High-performance M68HC08 architecture

• Fully upward-compatible object code with M6805, M146805, and M68HC05 Families

• Low-power design; fully static with stop and wait modes

• 5V and 3V operating voltages

• 8MHz internal bus operation

• RC-oscillator circuit or crystal-oscillator options

• In-system FLASH programming

• FLASH security

• User FLASH memory

– 4096 bytes for MC68H(R)C908JL3/JK3

– 1536 bytes for MC68H(R)C908JK1

• 128 bytes of on-chip random-access memory (RAM)

• 2-channel, 16-bit timer interface module (TIM)

• 12-channel, 8-bit analog-to-digital converter (ADC)

• 23 general purpose I/O ports for MC68H(R)C908JL3:

– 7 keyboard interrupt with internal pull-up

– 10 LED drivers

– 2 × 25mA open-drain I/O with pull-up

– 2 ICAP/OCAP/PWM

• 15 general purpose I/O ports for MC68H(R)C908JK3/JK1:

– 1 keyboard interrupt with internal pull-up (with RC oscillator option selected)

– 4 LED drivers

– 2 × 25mA open-drain I/O with pull-up

– 2 ICAP/OCAP/PWM

MC908JK3ECDWE Applications

• Light sensing & controlling devices

• Temperature sensing and controlling devices

• Fire detection & safety devices

• Industrial instrumentation devices

• Process control devices