MC68HC705PL4B中文资料Microcontroller数据手册恩XP规格书

描述 Description

Overview The NXP® MC68HC705PL4/B is a member of the low-cost, high-performance M68HC05 Family of 8-bit microcontroller units (MCUs). All MCUs in the family use the popular M68HC05 central processor unit (CPU) and are available with a variety of subsystems, memory sizes and types, and package types.

特性 Features

•Low Cost HC05 Core
•28-Pin SOIC, PDIP, or SSOP Packages
•4k Bytes of User EPROM with security
•256 Bytes of On-Chip RAM
•16-Bit Timer with Output Compare and Input Capture
•22 Bidirectional I/O Lines with:

•4 keyboard interrupts with pull-up resistor
•6 high current sink pins


•Open-drain output for LED drive
•Multiplexed DTMF output with built-in 6-bit D/A
•Single-Chip, Bootloader, and Test Modes
•Reloadable 8-bit event timer
•COP watchdog reset
•Power-Saving Stop, and Wait Modes