EM78804A Datasheet (ELAN Microelectronics)

EM78804A, 8-BIT MICRO-CONTROLLER

The EM78804A is an 8-bit CID (Call Identification) RISC type microprocessor with low power , high speed CMOS technology .

Integrated onto a single chip are on_chip watchdog (WDT) , RAM , ROM , programmable real time clock /counter , internal interrupt , power down mode , LCD driver , Tone generator

EM78804A 8-BIT MICRO-CONTROLLER Version 1.5 ELAN MICROELECTRONICS CORP.

No.

12, Innovation 1st RD., Science-Based Industrial Park Hsin Chu City, Taiwan, R.O.C.

TEL: (03) 5639977 FAX: (03) 5630118 Version History Specification Revision History Version Content EM78804A 1.0 Initial version 1.1 Revise operating voltage from 2.2-4.2V to 2.2-3.8V Max DC voltage to 4V 1.2 Delete 803A, revise operating Voltage from 2..2-3.8V to 2.2-3.6V Max DC voltage to 3.8V.

Fig.24 power concern in application.

Appli

EM78804A Features

* 6 ~ R9 (Port 6 ~ Port 9)

* R6, R7 and R9 are three 8-bit I/O registers for Port6, Port7 an