EM73PA88A
4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
PIN DESCRIPTIONS
Symbol
Pin-type
Function
VDD
Power supply (+).
Power supply (+) for programming OTP.
Power supply (+).
Power supply (-).
VDD2
VSS
Power supply (-) for programming OTP.
System reset input signal, low active.
Reset input signal for programming OTP.
Always internal pull-up.
RESET
RESET-A
OSC-G
CLK
Capacitor connecting pin for internal high frequency oscillator.
LXIN
LXOUT
OSC-B/OSC-H Crystal or RC osc connecting pin for low speed clock source.
OSC-B
Crystal osc connecting pin for low speed clock source.
4-bit input port with IDLE/STOP releasing function
P0(0..3)/WAKEUP0..3 INPUT-B
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
P8.2(INT0)/WAKEUPC
2-bit bidirection I/O port with external interrupt sources input and IDLE
/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
P8.3(TRGA)/WAKEUPD
2-bit bidirection I/O port with time/counter A,B external input and IDLE
/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
BZ2
Tone / Speech PWM / D/A output pin.
Tone / Speech PWM output pin.
LCD bias pins.
V1, V2, V3, V4, V5,
VA, VB
COM0~COM15
SEG0~SEG63
TEST/VPP
LCD common output pins.
LCD segment output pins.
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
ELAN [ ELAN MICROELECTRONICS CORP ]
