MC68HC11E1CFN2

Product Summary

 Introduction
This document contains a detailed description of the M68HC11 E series of 8-bit 
microcontroller units (MCUs). These MCUs all combine the M68HC11 central 
processor unit (CPU) with high-performance, on-chip peripherals. 
The E series is comprised of many devices with various configurations of:
? Random-access memory (RAM)
? Read-only memory (ROM)
? Erasable programmable read-only memory (EPROM)
? Electrically erasable programmable read-only memory (EEPROM)
? Several low-voltage devices are also available. 
With the exception of a few minor differences, the operation of all E-series MCUs 
is identical. A fully static design and high-density complementary metal-oxide 
semiconductor (HCMOS) fabrication process allow the E-series devices to operate 
at frequencies from 3 MHz to dc with very low power consumption.

Parametrics

Maximum RatingS:
Supply voltage VDD :–0.3 to +7.0 V
Input voltage VIn :–0.3 to +7.0 V
Current drain per pin(1)excluding VDD, VSS, AVDD, VRH, VRL and XIRQ/VPPE1. One pin at a time, observing maximum power dissipation limits ID ;25 mA
Storage temperature TSTG :–55 to +150 °C

Features

  Features 
Features of the E-series devices include:
? M68HC11 CPU 
? Power-saving stop and wait modes 
? Low-voltage devices available (3.0–5.5 Vdc) 
? 0, 256, 512, or 768 bytes of on-chip RAM, data retained during standby 
? 0, 12, or 20 Kbytes of on-chip ROM or EPROM 
? 0, 512, or 2048 bytes of on-chip EEPROM with block protect for security 
? 2048 bytes of EEPROM with selectable base address in the MC68HC811E2 
? Asynchronous non-return-to-zero (NRZ) serial communications interface 
(SCI) 
? Additional baud rates available on MC68HC(7)11E20 
? Synchronous serial peripheral interface (SPI) 
? 8-channel, 8-bit analog-to-digital (A/D) converter
? 16-bit timer system: 
– Three input capture (IC) channels 
– Four output compare (OC) channels 
– One additional channel, selectable as fourth IC or fifth OC 
? 8-bit pulse accumulator 
? Real-time interrupt circuit 
? Computer operating properly (COP) watchdog system 
? 38 general-purpose input/output (I/O) pins: 
– 16 bidirectional I/O pins 
– 11 input-only pins 
– 11 output-only pins 
? Several packaging options: 
– 52-pin plastic-leaded chip carrier (PLCC) 
– 52-pin windowed ceramic leaded chip carrier (CLCC) 
– 52-pin plastic thin quad flat pack, 10 mm x 10 mm (TQFP) 
– 64-pin quad flat pack (QFP) 
– 48-pin plastic dual in-line package (DIP), MC68HC811E2 only 
– 56-pin plastic shrink dual in-line package, .070-inch lead spacing (SDIP)