參數(shù)資料
型號: MC68HC705C9ACS
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, UVPROM, 2.1 MHz, MICROCONTROLLER
文件頁數(shù): 93/177頁
文件大?。?/td> 1941K
代理商: MC68HC705C9ACS
General Description
Advance Information
MC68HC705C9A — Rev. 4.0
22
General Description
MOTOROLA
the MC68HC05C12A. The MC68HC705C9A memory map consists of
12,092 bytes of user EPROM and 176 bytes of RAM when it is
configured as an MC68HC05C12A and 15,932 bytes of user EPROM
and 352 bytes of RAM when configured as an MC68HC05C9A. The
MC68HC705C9A includes a serial communications interface, a serial
peripheral interface, and a 16-bit capture/compare timer.
1.3 Features
Features include:
Programmable mask option register (MOR) for C9A/C12A
configuration
Programmable MOR for port B pullups and interrupts
Popular M68HC05 central processor unit (CPU)
15,932 bytes of EPROM (12,092 bytes for C12A configuration)
352 bytes of RAM (176 for C12A configuration)
Memory mapped input/output (I/O)
31 bidirectional I/O lines (24 I/O + 6 input only for C12A
configuration) with high current sink and source on PC7
Asynchronous serial communications interface (SCI)
Synchronous serial peripheral interface (SPI)
16-bit capture/compare timer
Computer operating properly (COP) watchdog timer and clock
monitor
Power-saving wait and stop modes
On-chip crystal oscillator connections
Single 3.0 volts to 5.5 volts power supply requirement
EPROM contents security(1) feature
1. No security feature is absolutely secure. However, Motorola’s strategy is to make reading or
copying the EPROM difficult for unauthorized users.
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