MC68HC11F1CPU4 Description

A high-performing member of the M68HC11 family of microcontrollers is the MC68HC11F1CPU4 (MCUs). The invention of this chip was necessary for high-speed expanding systems because it has more input/output (I/O) ports, more static RAM (one Kbyte), internal chip-select functions, and a non-multiplexed bus that eliminates the need for additional interface circuitry. Functions identical to those found in the MC68HC11E9 can be performed using the timer, serial I/O, and analog-to-digital (A/ D) converter.

MC68HC11F1CPU4 Features

• MC68HC11 CPU

• Enhanced 16-Bit Timer System

    — 3 Input Capture (IC) Functions

    — 4 Output Compare (OC) Functions

    — 4th IC or 5th OC (Software Selectable)

• 8-Bit Pulse Accumulator

• Real-Time Interrupt Circuit

• Power saving STOP and WAIT Modes

• Synchronous Serial Peripheral Interface (SPI)

• On-Board Chip-Selects with Clock Stretching

• 1024 Bytes of On-Chip RAM (All Saved During Standby)

• Eight-Channel 8-Bit A/D Converter (MC68HC11F1 only)

• Computer Operating Properly (COP) Watchdog System and Clock Monitor

• Asynchronous Nonreturn to Zero (NRZ) Serial Communication Interface (SCI)

• Bus Speeds of up to 6 MHz for the MC68HC11FC0 and up to 5 MHz for the MC68HC11F1

• 68-Pin PLCC (MC68HC11F1 only), 64-Pin QFP (MC68HC11FC0 only), and 80-pin TQFP package options

• 512 Bytes of On-Chip Electrically Erasable Programmable ROM(EEPROM) with Block Protect (MC68HC11F1 only)

MC68HC11F1CPU4 Applications

• Industrial 

• Personal electronics

• Communications equipment