MC68HC908AT32 Datasheet, PDF (23/378 Pages) Freescale Semiconductor, Inc – Microcontrollers

Port F (PTF)
Port G (PTG)
Port H (PTH)
Table 1-1. Feature Comparisons (Sheet 3 of 3)
Features
MC68HC08AZ32
64-Pin Emulator
Features
MC68HC08AS20
52-Pin Emulator
(PTF6:PTF0)
(PTF3:PTF0)
Features of the MC68HC908AT32 include:
• High-performance M68HC08 architecture
• Fully upward-compatible object code with M6805, M146805, and M68HC05 Families
• 8-MHz internal bus frequency
• 32 Kbytes of FLASH electrically erasable read-only memory (FLASH)
• FLASH data security⁽¹⁾
• 512 bytes of on-chip electrically erasable programmable read-only memory with security option
(EEPROM)
• 1 Kbyte of on-chip random-access memory (RAM)
• Clock generator module (CGM)
• Serial peripheral interface module (SPI)
• Serial communications interface module (SCI)
• 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 (fully static with stop and wait modes)
• Master reset pin and power-on reset (POR)
Features of the CPU08 include:
• Enhanced HC05 programming model
• Extensive loop control functions
• 16 addressing modes (eight more than the HC05)
• 16-bit index register and stack pointer
• Memory-to-memory data transfers
• Fast 8 × 8 multiply instruction
• Fast 16/8 divide instruction
1. No security feature is absolutely secure. However, Freescale’s strategy is to make reading or copying the FLASH difficult for
unauthorized users.
MC68HC908AT32 Data Sheet, Rev. 3.1
Freescale Semiconductor
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