MC68HC05P4A中文资料Microcontroller数据手册恩XP规格书

描述 Description

Overview The MC68HC05P4A is a 28-pin MCU (microcontroller unit) based on the MC68HC05P4. The memory map includes 4160 bytes of user ROM and 176 bytes of RAM. The MCU has two 8-bit input/output (I/O) ports, A and C. Port B has three I/O pins and port D has two pins, one that is I/O and the other input only. The MC68HC05P4A includes a simple serial I/O peripheral (SIOP) and an on-chip mask programmable computer operating properly (COP) watchdog circuit.
Archived content is no longer updated and is made available for historical reference only.

特性 Features

Low-Cost, M68HC05 Core



•28-pin package


•On-chip oscillator with RC (resistor capacitor) or crystal/ceramicresonator mask options


•4160 bytes of user read-only memory (ROM), including 16 uservector locations


•ROM security feature 1


•176 bytes of on-chip random-access memory (RAM)


•16-bit timer


•20 bidirectional input/output (I/O) lines, one input-only line


•Mask programmable keyscan (pullups and interrupt) on eight portpins (PA0&–PA7)


•Two port pins with high current drive capability