General Description
Introduction
The MC68HC908AS60 is a member of the low-cost, high-performance M68HC08 Family of 8-bit microcontroller units (MCU). The M68HC08 Family is based on the customer-specified integrated circuit (CSIC) design strategy. All MCUs in the family use the enhanced M68HC08 central processor unit (CPU08) and are available with a variety of modules, memory sizes and types, and package types.

FEATUREs
Features of the MC68HC908AS60 include:
• High-performance M68HC08 architecture
• Fully upward-compatible object code with M6805, M146805, and M68HC05 Families
• 8.4-MHz internal bus frequency
• 60 Kbytes of FLASH electrically erasable read-only memory (FLASH)
• FLASH data security(1)
• 1 Kbyte of on-chip electrically erasable programmable read-only memory (EEPROM) with security option
• 2 Kbytes of on-chip random-access memory (RAM)
• Clock generator module (CGM)
• Serial peripheral interface module (SPI)
• Serial communications interface module (SCI)
• 8-bit, 15-channel analog-to-digital converter (ADC-15)
• 16-bit, 6-channel timer interface module (TIMA-6)
• Modulo timer (TIM)
• SAE J1850 byte data link controller digital module (BDLC-D)
• System protection features:
   – Computer operating properly (COP) with optional reset
   – Low-voltage detection with optional reset
   – Illegal opcode detection with optional reset
   – Illegal address detection with optional reset
• Low-power design with stop and wait modes
• Master reset pin and power-on reset

FEATUREs of the CPU08 include:
• Enhanced HC05 programming model
• Extensive loop control functions
• 16 addressing modes (eight more than the M68HC05)
• 16-bit index register and stack pointer
• Memory-to-memory data transfers
• Fast 8 × 8 multiply instruction
• Fast 16/8 divide instruction
• Binary-coded decimal (BCD) instructions
• Optimization for controller applications
• C language support