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CS82C55A-5 View Datasheet(PDF) - Harris Semiconductor

Part NameCS82C55A-5 Harris
Harris Semiconductor Harris
DescriptionCMOS Programmable Peripheral Interface
CS82C55A-5 Datasheet PDF : 26 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
82C55A
Mode 0 Configurations (Continued)
CONTROL WORD #4
D7 D6 D5 D4 D3 D2 D1 D0
10 0 0 1 0 0 0
A
82C55A
D7 - D0
C
B
8
PA7 - PA0
4
PC7 - PC4
4
PC3 - PC0
8
PB7 - PB0
CONTROL WORD #8
D7 D6 D5 D4 D3 D2 D1 D0
10 0 1 0 0 0 0
A
82C55A
D7 - D0
C
B
8
PA7 - PA0
4
PC7 - PC4
4
PC3 - PC0
8
PB7 - PB0
CONTROL WORD #5
D7 D6 D5 D4 D3 D2 D1 D0
10 0 0 1 0 0 1
A
82C55A
D7 - D0
C
B
8
PA7 - PA0
4
PC7 - PC4
4
PC3 - PC0
8
PB7 - PB0
CONTROL WORD #9
D7 D6 D5 D4 D3 D2 D1 D0
10 0 1 0 0 0 1
A
82C55A
D7 - D0
C
B
8
PA7 - PA0
4
PC7 - PC4
4
PC3 - PC0
8
PB7 - PB0
CONTROL WORD #6
D7 D6 D5 D4 D3 D2 D1 D0
10 0 0 1 0 1 0
A
82C55A
D7 - D0
C
B
8
PA7 - PA0
4
PC7 - PC4
4
PC3 - PC0
8
PB7 - PB0
CONTROL WORD #10
D7 D6 D5 D4 D3 D2 D1 D0
10 0 1 0 0 1 0
A
82C55A
D7 - D0
C
B
8
PA7 - PA0
4
PC7 - PC4
4
PC3 - PC0
8
PB7 - PB0
CONTROL WORD #7
D7 D6 D5 D4 D3 D2 D1 D0
10 0 0 1 0 1 1
A
82C55A
D7 - D0
C
B
8
PA7 - PA0
4
PC7 - PC4
4
PC3 - PC0
8
PB7 - PB0
CONTROL WORD #11
D7 D6 D5 D4 D3 D2 D1 D0
10 0 1 0 0 1 1
A
82C55A
D7 - D0
C
B
8
PA7 - PA0
4
PC7 - PC4
4
PC3 - PC0
8
PB7 - PB0
7
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Description
The Harris 82C55A is a high performance CMOS version of the industry standard 8255A and is manufactured using a self-aligned silicon gate CMOS process (Scaled SAJI IV). It is a general purpose programmable I/O device which may be used with many different microprocessors. There are 24 I/O pins which may be individually programmed in 2 groups of 12 and used in 3 major modes of operation. The high performance and industry standard configuration of the 82C55A make it compatible with the 80C86, 80C88 and other microprocessors.
Static CMOS circuit design insures low operating power. TTL compatibility over the full military temperature range and bus hold circuitry eliminate the need for pull-up resistors. The Harris advanced SAJI process results in performance equal to or greater than existing functionally equivalent products at a fraction of the power.

Features
• Pin Compatible with NMOS 8255A
• 24 Programmable I/O Pins
• Fully TTL Compatible
• High Speed, No “Wait State” Operation with 5MHz and
   8MHz 80C86 and 80C88
• Direct Bit Set/Reset Capability
• Enhanced Control Word Read Capability
• L7 Process
• 2.5mA Drive Capability on All I/O Ports
• Low Standby Power (ICCSB) . . . . . . . . . . . . . . . . .10µA

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