MB89630系列 实现外部程序总线EPROM 是的低功耗

MB89630系列 实现外部程序总线EPROM 是的低功耗
Fujitsu Microelectronics Europe MCU-AN-389016-E-V20




Application Note

External EPROM Power Down for the

MB89630 Micro controller

Fujitsu Mikroelektronik GmbH
Vers. 2.0 by E. Bendels

This Application Note shows a concept on how to realize a low-power consumption system even
when using an EPROM connected to the external program bus.

The problem:

Usually, theere is a big difference in power consumption between a single-chip microcontroller
system, and ROMless microcontroller systems.
A single-chip system requires just one chip, where as a multipl