4570 datasheet(2/69 Pages) RENESAS

2 / 69 page

DESCRIPTION

The 4570 Group is a 4-bit single-chip microcomputer designed

with CMOS technology. Its CPU is that of the 4500 series using

a simple, high-speed instruction set. The computer is equipped

with a carrier wave output circuit for remote control, an 8-bit timer

with a reload register, a 10-bit timer with a reload register, and

an 8-bit timer with two reload registers.

The various microcomputers in the 4570 Group include variations

of the built-in memory size. The mask ROM version and One

Time PROM version of 4570 Group are produced as shown in

the table below.

FEATURES

q Minimum instruction execution time

When f(XIN) is selected for system clock ....................... 1.5

µs

(f(XIN)=2.0 MHz, VDD=4.5 V to 5.5 V)

When f(XIN)/4 is selected for system clock ................. 2.86

µs

(f(XIN)=4.2 MHz, VDD=2.0 V to 5.5 V)

q Supply voltage

............................. 2.5 V to 5.5 V (One Time PROM version)

q System clock switch function

............................................................. f(XIN)/4 or not divided

q Timers

Timer 1... 10-bit timer with a reload register and carrier wave

output auto-control function

Timer 2 ................................ 8-bit timer with a reload register

Timer 3... 8-bit timer with two reload registers and carrier wave

generation function

q Interrupt ................................................................... 4 sources

q Power-on reset circuit

q Watchdog timer ............................................................ 16 bits

q Key-on wakeup function (Ports P0, P1, and P4, ON/OFF of

port P4 can be switched)

qPull-up transistor .............. (Ports P0, P1, and P4, ON/OFF of

port P4 can be switched)

q Voltage drop detection circuit

q Clock generating circuit (ceramic resonance)

APPLICATION

Remote control transmitter

Outline 36P2R-A

PIN CONFIGURATION (TOP VIEW)

M34570Mx-XXXFP

....................................... 2.0 V to 5.5 V (Mask ROM version)

Product

M34570M4-XXXFP

M34570M8-XXXFP

M34570MD-XXXFP

M34570E8FP

M34570EDFP *

*: Under development (Jan. 1999)

ROM type

Mask ROM

One Time PROM

Package

36P2R-A

RAM size

(! 4 bits)

128 words

ROM (PROM) size

(! 10 bits)

4096 words

8192 words

16384 words

8192 words

16384 words

P40

P41

P42

P43

CNVSS

P13

P12

P02

P10

RESET

VDD

XOUT

XIN

VSS

P01

P00

P20

P11

P03

P21/INT

CARR

P32

P31

P30

VDCE

D9/TOUT

P33

4570 Group

SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

MITSUBISHI MICROCOMPUTERS

4570 Datasheet(PDF) 2 Page - Renesas Technology Corp

4570 Datasheet(HTML) 2 Page - Renesas Technology Corp

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