mm82pc12 National Semiconductor Corporation, mm82pc12 Datasheet

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mm82pc12

Manufacturer Part Number
mm82pc12
Description
8-bit Input/output Port
Manufacturer
National Semiconductor Corporation
Datasheet

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C 1995 National Semiconductor Corporation
MM82PC12 8-Bit Input Output Port
General Description
The MM82PC12 is a microCMOS 8-bit input output port
contained in a standard 24-pin dual-in-line package The
MM82PC12 can be used to implement latches gated buff-
ers or multiplexers Thus all of the major peripheral and
input output functions of a microcomputer system can be
implemented with this device
The MM82PC12 includes an 8-bit latch with TRI-STATE
output buffers and device selection and control logic Also
included is a service request flip-flop for the generation and
control of interrupts to the microprocessor
The MM82PC12 is pinout and function compatible with stan-
dard INS8212 and DP8212 devices
For military applications the MM82PC12 is available with
class B screening in accordance with method 5004 of MIL-
STD-883
System Configuration
TRI-STATE is a registered trademark of National Semiconductor Corp
TL C 5596
Features
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Drive capability 150 pF load
High noise immunity
Low power dissipation
Full interface to CMOS logic levels
microCMOS technology
TTL drive capability when V
8-bit data latch and buffer
Service request flip-flop for generation and control of
interrupts
1 mA input load current
Reduces system package count by replacing buffers
latches and multiplexers in microcomputer systems
CC
e
5V
TL C 5596 – 1
RRD-B30M105 Printed in U S A
July 1987

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mm82pc12 Summary of contents

Page 1

... Also included is a service request flip-flop for the generation and control of interrupts to the microprocessor The MM82PC12 is pinout and function compatible with stan- dard INS8212 and DP8212 devices For military applications the MM82PC12 is available with ...

Page 2

Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications b Storage Temperature Range Voltage at Any Pin With b Respect to Ground Lead ...

Page 3

Timing Waveforms Read Timing Write Timing Data Setup Hold Delay Timing Interrupt Timing Clear Timing 5596 – 5596 – 5596 – 5596 – 5596 – ...

Page 4

... Including jig and probe capacitance Output Test Circuit for Propagation Delays FIGURE 1 Normalized Typical Propagation Delay vs Load Capacitance Pin Descriptions The following describes the function of all the MM82PC12 input output pins Some of these descriptions reference in- ternal circuits PD INPUT SIGNALS Device Select (DS ...

Page 5

... Connection Diagrams Dual-In-Line Package TL C 5596 – 10 Top View Order Number MM82PC12J or N See NS Package Number J24A or N24A Plastic Chip Carrier TL C 5596 – 12 Top View Order Number MM82PC12V See NS Package Number V28A Logic Table A  STB TRI-STATE ...

Page 6

Applications in Microcomputer Systems Gated Buffer (TRI-STATE) Interrupting Input Port Output Port (with Handshaking 5596 – 13 Bidirectional Bus Driver TL C 5596 – 15 Interrupt Instruction Port TL C 5596 – 5596 – ...

Page 7

... Ordering Information Note 1 Do not specify a temperature option all parts are screened to military temperature Physical Dimensions inches (millimeters) Ceramic Dual-In-Line Package (J) Order Number MM82PC12J NS Package J24A Molded Dual-In-Line Package (N) Order Number MM82PC12N NS Package N24A 5596 – 18 ...

Page 8

... National does not assume any responsibility for use of any circuitry described no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications Plastic Chip Carrier Package (V) Order Number MM82PC12V NS Package V28A 2 A critical component is any component of a life ...

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