MSM64162 datasheet(8/39 Pages) OKI

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MSM64162

PIN DESCRIPTIONS

The following tables describe the pin basic functions and secondary functions of the MSM64162.

For pin, "64QFP" and "80QFP" denote 64-pin flat package and 80-pin flat package respectively.

Basic Functions

Function Symbol

Pad

Type

Description

—

0 V power supply

VDD

—

Negative power supply (for 1.5 V spec.)

Bias output for drivig LCD (–1.5 V) (for 3.0 V spec.)

VSS1

—

Negative power supply (for 3.0 V spec.)

Bias output for driving LCD (–3.0 V) (for 1.5 V spec.)

VSS2

Power

Supply

—

Bias output for driving LCD (–4.5 V).

VSS3

—

Pins for connecting a capacitor for generating LCD

driving bias

—

Negative power supply for internal logic

(An internally generated constant voltage is present at

this pin.)

VSSL

Oscillation

Low-speed clock oscillation input and output pins:

Connect to a crystal (32.768 kHz).

OSC2

TST1

Test

TST2

Reset

System reset input pin.

Setting this pin to "L" level puts this device into a reset state.

Then, setting this pin to "H" level starts executing an

instruction from address 000H.

A pull-up resistor is internally connected to this pin.

RESET

Input pins for testing.

A pull-up resistor is internally connected to these pins.

OSC1

High-speed clock oscillation input and output pins:

Connect to an external resistor for oscillation (ROS).

64QFP 80QFP

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