EM785830AA

8-bit Micro-controller

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* This specification is subject to be changed without notice.

2

12/1/2004

V1.6

I. General Description

The EM785830AA is an 8-bit RISC type microprocessor with low power, high speed CMOS technology. There

are 16Kx13 bits ROM within it.

This integrated single chip has an on_chip watchdog timer (WDT, data RAM, programmable real time

clock/counter, internal interrupt, power down mode, 4-channel 10-bit A/D converter, two channel PWM output, SPI and

tri-state I/O.

II. Feature

CPU

Main CLK(Hz)

Under 3.58M

7.16M

10.74M

14.3M

Operating Voltage(min)

2.2

2.5

3

3.6

•16k x 13 on chip Program Memory

•0.5k x 8 on chip data RAM

•Up to 21 bi-directional tri-state I/O ports(4 shared with AD input; 1 shared with external interrupt input )

•12 level stack for subroutine nesting

•8-bit real time clock/counter (TCC)

•Two 8-bit counters : COUNTER1 and COUNTER2

•On-chip watchdog timer (WDT)

•99.9％ single instruction cycle commands

•Four modes (Main clock can be programmed from 447.829k to 14.3MHz generated by internal PLL)

Mode

CPU status

Main clock

32.768kHz clock status

Sleep mode

Turn off

Turn off

Turn off

Green mode

Turn on

Turn off

Turn on

Normal mode

Turn on

Turn on

Turn on

•7 level Normal mode frequency : 447.8K , 895.7K , 1.79M , 3.58M , 7.16M , 10.75M and 14.3MHz.

•Input port interrupt function

•Dual clocks operation (Internal PLL main clock , External 32.768KHz)

SPI

•Serial Peripheral Interface (SPI) : a kind of serial I/O interface

•Interrupt flag available for the read buffer full or transmitter buffer empty.

•Programmable baud rates of communication

•Three-wire synchronous communication. (shared with IO)

PWM

•Dual PWM (Pulse Width Modulation) with 10-bit resolution

•Programmable period (or baud rate)

•Programmable duty cycle

ADC

POR

PACKAGE

EM78P5830AM, EM78P5830AAM, EM785830AAM

28 pin SOP

EM78P5830AP, EM78P5830AAP, EM785830AAP

28 pin PDIP

III. Application

General products