ML63187 datasheet(32/36 Pages) OKI

Part #	ML63187

Description	4-Bit Microcontroller with Built-in 1024-Dot Matrix LCD Drivers and Melody Circuit, Operating at 0.9 V (Min).

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Manufacturer	OKI [OKI electronic componets]

Direct Link	http://www.oki.com

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32 / 36 page

¡ Semiconductor

ML63187/63189B

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Note: VDDI is the power supply pin for the input-output ports.

Be sure to connect the VDDI pin either to the positive power supply pin (VDD) of this

device or to the positive power supply pin of the external memory.

Application Circuit Example with No Power Supply Backup

APPLICATION CIRCUITS (ML63187)

XT0

COM1-16

XT1

VDDH

VDD

VDD5

VDD4

VDD3

VDD2

VDD1

C1

C2

RESET

TST1

TST2

MD

MDB

VSS

SEG0-63

OSC0

OSC1

PB.3

PB.2

PB.1

PB.0

Cv

CG

C12

LCD

Crystal

32.768 kHz

VDD

5.0 V

Ce

Cd

Cc

Cb

Ca

Buzzer

•Crystal oscillation is selected as low-speed

oscillation.

•Ceramic oscillation is selected as high-speed

oscillation.

•Ports, external memory, and IC share their

power supply.

•Cv is an IC power supply bypass capacitor.

•Values of Ca, Cb, Cc, Cd, Ce, Cl, C12, CG,

CL0, and CL1 are for reference only.

VDDI

VDD

CL0 30 pF

CL1

30 pF

Ceramic

Resonator

(Example: 1 MHz)

CB1

CB2

VDDL

Cl

ML63187

0.1 mF

Open

Push SW

5 to 25 pF

PE.3

PE.2

PE.1

PE.0

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ML63187 Datasheet(PDF) 32 Page - OKI electronic componets

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