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82C55A
S E M I C O N D U C T O R
CMOS Programmable
Peripheral Interface
March 1997
Features
Description
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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 conguration of the
82C55A make it compatible with the 80C86, 80C88 and
other microprocessors.
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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
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
Ordering Information
PART NUMBERS
5MHz
8MHz
CP82C55A-5
CP82C55A
IP82C55A-5
IP82C55A
CS82C55A-5
CS82C55A
IS82C55A-5
IS82C55A
CD82C55A-5
ID82C55A
40 Ld
CERDIP
MD82C55A-5/B MD82C55A/B
8406601QA
8406602QA
8406602XA
N44.65
-40oC to +85oC
N44.65
F40.6
F40.6
F40.6
SMD#
44 Pad
MR82C55A-5/B MR82C55A/B
CLCC
8406601XA
E40.6
0oC to +70oC
-55oC to +125oC
44 Ld PLCC
E40.6
-40oC to +85oC
-40oC to +85oC
40 Ld PDIP
0oC to +70oC
0oC to +70oC
CD82C55A
ID82C55A-5
TEMPERATURE PKG.
RANGE
NO.
PACKAGE
F40.6
-55oC to +125oC
SMD#
J44.A
J44.A
Pinouts
36 WR
A1 9
37 D0
CS 6
35 RESET
A0 10
36 D1
PC7 11
35 D2
6
5
4
3
2
WR
RD 5
39 NC
38 RESET
PA7
37 PA7
PA6
RD
PA0 4
PA5
1 44 43 42 41 40
GND 7
NC 8
PA4
2
38 PA6
PA3
NC
3
39 PA5
PA1 3
PA2
4
40 PA4
PA2 2
PA1
5
PA3 1
PA0
6
WR
PA7
PA3
PA6
PA2
PA5
PA1
PA4
PA0
82C55A (PLCC)
TOP VIEW
CS
82C55A (CLCC)
TOP VIEW
RD
82C55A (DIP)
TOP VIEW
1 44 43 42 41 40
CS
7
39
RESET
GND
8
38
D0
A1
9
37
D1
A0
10
36
D2
11
35
D3
12
34
NC
GND 7
34 D0
A1 8
33 D1
PC6 12
34 D3
A0 9
32 D2
PC7
NC
PC5 13
33 D4
PC6
13
PC7 10
D4
31 D3
33
PC4 14
32 D5
PC5
14
32
D5
PC6 11
30 D4
PC0 15
31 D6
PC4
15
31
D6
PC5 12
29 D5
PC1 16
30 D7
PC0
16
30
D7
PC4 13
28 D6
PC2 17
29 NC
PC1
17
29
VCC
PC0 14
27 D7
PC1 15
26 VCC
PC2 16
25 PB7
PC3 17
24 PB6
PB0 18
23 PB5
PB1 19
22 PB4
PB2 20
21 PB3
Copyright
© Harris Corporation 1997
4-232
PB7
PB6
PB5
PB4
PB3
NC
PB2
PA2
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
PC3
PB0
PB1
NC
VCC
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PB0
PC3
18 19 20 21 22 23 24 25 26 27 28
18 19 20 21 22 23 24 25 26 27 28
File Number
2969.1
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