EM73201
4-BIT MICRO-CONTROLLER FOR GENERAL PURPOSE PRODUCT
PIN DESCRIPTIONS
Symbol
Pin- Type
Function
VDD
Vss
Power supply (+)
Power supply (-)
RESET
RESET-A
System reset input signal, low active
mask option:
none
pull-up
XIN/CLK
XOUT/NC
OSC-A/OSC-C Crystal/RC or external clock source connecting pin
OSC-A
Crystal connecting pin or NC for RC osc. type
4-bit input port with Sleep/Hold releaseing func tion
mask option : none
P(0..3)/WAKEUP0..3
INPUT-C
pull-up
pull-down
P1.0/CLKOUT
OUTPUT-B
1-bit high current output pin for LED driving or clock output for
infrared signal
mask option : open-drain, normal sink
open-drain, high sink
normal source, normal sink
normal source, high sink
P1(1..3)
P7(0..3)
OUTPUT-A
3-bit high current output pin for LED driving
mask option : open-drain, normal sink
open-drain, high sink
normal source, normal sink
normal source, high sink
I/O-U
4-bit bidirection I/O port
mask option : open-drain, normal sink
low source, normal sink
normal source, normal sink
normal source, high sink
high source, high sink
P8.0/INT1,P8.2/INT0
P8.3/TRGA
P8.1
I/O-W
I/O-V
I/O-W
2-bit bidirection I/O pins with external interrupt sources input
mask option : open-drain, normal sink
low source, normal sink
normal source, normal sink
normal source, high sink
high source, high sink
1-bit bidirection I/O pin with timer/counter A external input
mask option : open-drain, normal sink
low source, normal sink
normal source, normal sink
normal source, high sink
high source, high sink
1-bit bidirection I/O pin
mask option : open-drain, normal sink
low source, normal sink
normal source, normal sink
normal source, high sink
high source, high sink
* This specification are subject to be changed without notice.
3
7.20.1999
ELAN [ ELAN MICROELECTRONICS CORP ]
