
MC68HC11E Family
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Rev. 4
Technical Data
MOTOROLA
General Description
23
Technical Data
—
M68HC11E Family
Section 1. General Description
1.1 Contents
1.2
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
1.3
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
1.4
Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
1.2 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.