MM82PC12J NSC [National Semiconductor], MM82PC12J Datasheet - Page 5

• Manufacturer Part Number: MM82PC12J
• Description: 8-Bit Input/Output Port
• Manufacturer: NSC [National Semiconductor]

Connection Diagrams
Note CLR
clock is level sensitive a low level clock latches the data
See NS Package Number J24A or
Order Number MM82PC12J or N
See NS Package Number V28A
STB
Order Number MM82PC12V
0
1
0
1
0
1
0
1
Dual-In-Line Package
Plastic Chip Carrier
resets data latch to the output low state The data latch
Top View
Top View
MD
0
0
1
1
0
0
1
1
N24A
Logic Table A
DS
TL C 5596– 10
TL C 5596– 12
1
0
0
0
0
1
1
1
1
DS
2
TRI-STATE
TRI-STATE
Data Latch
Data Latch
Data Latch
Logic Diagram
Data Out
Equals
Data In
Data In
Data In
5
Internal Service Request flip-flop
0 RESET
CLR
1
1
1
1
DS
1 RESET
1
Logic Table B
0
0
0
0
DS
2
STB
0
0
0
0
Q
0
0
1
0
0
TL C 5596 – 11
INT
1
1
0
0
1