MC68HC908MR24中文资料Microcontroller数据手册恩XP规格书

描述 Description

Overview The MC68HC908MR24 is a member of the low-cost, high-performance M68HC08 Family of 8-bit microcontroller units (MCUs). 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.

特性 Features

•High-performance M68HC08 architecture
•Fully upward-compatible object code with M6805, M146805, and
M68HC05 Families
•8-MHz internal bus frequency
•24 Kbytes of on-chip electrically erasable programmable
read-only memory (FLASH)
•On-chip programming firmware for use with host personal
computer
•FLASH data security
•768 bytes of on-chip random-access memory (RAM)
•12-bit, 6-channel center-aligned or edge-aligned pulse-width
modulator (PWMMC)
•Serial peripheral interface module (SPI)
•Serial communications interface module (SCI)
•16-bit, 4-channel timer interface module (TIMA)
•16-bit, 2-channel timer interface module (TIMB)
•Clock generator module (CGM)
•Digitally filtered low-voltage inhibit (LVI)
•10-bit, 10-channel analog-to-digital converter (ADC)
•System protection features:

•Optional computer operating properly (COP) reset
•Low-voltage detection with optional reset
•Illegal opcode detection with optional reset
•Illegal address detection with optional reset
•Fault detection with optional PWM disabling


•64-pin plastic quad flat pack (QFP)
•Low-power design (fully static with wait mode)
•Master reset pin (RST) and power-on reset (POR)

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
•Binary-coded decimal (BCD) instructions
•Optimization for controller applications
•C language support