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.

M68HC11 E-series MCUs are available packaged in:

• 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)