Toshiba TLCS-90 Series Data Book page 177

TOSHIBA
TMP8243P/TMP8243PI
INPUT/OUTPUT EXPANDER
GENERAL DESCRIPTION
The T}W8243P is an input/output expander designed specifically
LO
provide a low
cost means of i/O expansion for the TLC5-84 family.
The I/O ports of the TMP8243P serve as a direct extension of the resident I/O
facilities of the
TLC~-84
microcomputers and are accessed by their own MOVD.
&~LD. and ORLD instructions.
FEATURES
o Low cost
o Simple interface to TLCS-84 microcomputers
o Four 4-bit I/O ports
o
AIm
and OR directly to ports
o
Single
SV
supply
o High output drive
o
Direct extension
of
resident TMP8048P/TMP8049P I/O ports.
o
Compatible with intel's 8243
o
-40°C to +85°C Operation
(1}~8243PI:
Industrial Specification)
PIN CONNECTION (TOP VIEW)
BLOCK DIAGRAM
PORT 4
1'50
vee
F~O 1'51
PORT
5
F,,}
P52
p,?
1'5:3
PORT 2
h3
rec
tr;
rtS1
PROG P6::: PORT 6
PZ3
P63
1'Z.('
P73
~1
P72
P20
1'71
PORT 7
OND
P'i'D
MCU48-167