MC68711E20CFNE2 Description

The 8-bit microcontroller M68HC11 E series is described in detail in this document (MCUs). These MCUs all incorporate the high-performance, on-chip peripherals of the M68HC11 central processing unit (CPU). All E-series MCUs operate in the same same way, with a few small exceptions. The E-series devices operate at frequencies from 3 MHz to dc with extremely low power consumption thanks to a totally static design and a high-density complementary metal-oxide semiconductor (HCMOS) production technique.

MC68711E20CFNE2 Features

• 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

• 8-bit pulse accumulator

• Real-time interrupt circuit

MC68711E20CFNE2 Applications

• Power Management

• Consumer Electronics

• Portable Devices

• Industrial