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EM73PA88AAQ

4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

ELAN Microelectronics 

PIN DESCRIPTIONS

EM73PA88A

4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

Preliminary

Symbol

Pin-type

Function

VDD

Power supply (+).

Power supply (+) for programming OTP.

VDD2

Power supply (+).

VSS

Power supply (-).

Power supply (-) for programming OTP.

RESET

RESET-A

System reset input signal, low active.

Reset input signal for programming OTP.

Always internal pull-up.

CLK

OSC-G

Capacitor connecting pin for internal high frequency oscillator.

LXIN

OSC-B/OSC-H Crystal or RC osc connecting pin for low speed clock source.

LXOUT

OSC-B

Crystal osc connecting pin for low speed clock source.

P0(0..3)/WAKEUP0..3 INPUT-B

4-bit input port with IDLE/STOP releasing function

P0.0/ACLK : address counter clock for programming OTP.

P0.1/PGMB : program data to OTP cells for programming OTP.

P0.2/OEB : data output enable for programming OTP.

P0.3/DCLK : data in/out clock signal for programming OTP.

mask option :

wakeup enable, pull-up

wakeup enable, none

wakeup disable, pull-up

wakeup disable, pull-down

wakeup disable, none

P4(0..3)

I/O-O

4-bit bidirection I/O port with high current source.

mask option :

open-drain

push-pull, high current PMOS

push-pull, low current PMOS

P8.0(INT1)/WAKEUPA I/O-L

2-bit bidirection I/O port with external interrupt sources input and IDLE

P8.2(INT0)/WAKEUPC

/STOP releasing function.

P8.0/DIN : data input for programming OTP.

mask option :

wakeup enable, push-pull

wakeup disable, push-pull

wakeup disable, open-drain

P8.1(TRGB)/WAKEUPB I/O-L

2-bit bidirection I/O port with time/counter A,B external input and IDLE

P8.3(TRGA)/WAKEUPD

/STOP releasing function.

P8.1/DOUT : data output for programming OTP.

mask option :

wakeup enable, push-pull

wakeup disable, push-pull

wakeup disable, open-drain

BZ1

Tone / Speech PWM / D/A output pin.

BZ2

Tone / Speech PWM output pin.

V1, V2, V3, V4, V5,

LCD bias pins.

VA, VB

COM0~COM15

LCD common output pins.

SEG0~SEG63

LCD segment output pins.

TEST/VPP

Test pin must be floating.

VPP : high voltage (12V) power source for programming OTP.

* This specification are subject to be changed without notice.

10.8.2001 5

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