MC68HC705X32数据手册恩XP中文资料规格书

描述 Description

Overview The MC68HC705X32 microcomputer (MCU) is a member of Our MC68HC05 family of low-cost single chip microcomputers. This 8-bit MCU contains an on-board controller area network module (MCAN), complete with interface circuitry, comprising output drivers, input comparators and a V DD /2 generator. In addition, the device contains an on-chip oscillator, CPU, RAM, ROM, EEPROM, A/D converter, pulse length modulated outputs, I/O, serial communications interface, programmable timer system and watchdog. The fully static design allows operation at frequencies down to dc, reducing power consumption to a few micro-amps.

特性 Features

Fully static design featuring the industry standard M68HC05 family CPU core



•On chip crystal oscillator with divide-by -2, -4, -8 or -10, or a software selectable divide-by -32, -64, -128 or -160 option (SLOW mode)


•31232 bytes of user EPROM plus 16 bytes of user vectors


•528 bytes of RAM


•654 bytes of bootstrap ROM


•256 bytes of byte erasable EEPROM with internal charge pump and security bit


•Write/erase protect bit for 224 of the 256 bytes EEPROM


•Bootstrap firmware


•Power saving STOP, WAIT and SLOW modes


•Three 8-bit parallel I/O ports and one 8-bit input-only port; wired-OR interrupt capability on all port B pins