Document
82C55A
June 1998
CMOS Programmable Peripheral Interface
Description
The Intersil 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 Intersil 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
Ordering Information
PART NUMBERS 5MHz 8MHz
CP82C55A-5 IP82C55A-5 CS82C55A-5 IS82C55A-5 CD82C55A-5 ID82C55A-5 8406601QA CP82C55A IP82C55A CS82C55A IS82C55A CD82C55A ID82C55A 8406602QA
PACKAGE
40 Ld PDIP 44 Ld PLCC 40 Ld CERDIP SMD#
TEMPERATURE RANGE
0oC to 70oC -40oC to 85oC 0oC to 70oC -40oC to 85oC 0oC to 70oC -40oC to 85oC -55oC to 125oC -55oC to 125oC
PKG. NO.
E40.6 E40.6 N44.65 N44.65 F40.6 F40.6 F40.6 F40.6 J44.A J44.A
MD82C55A-5/B MD82C55A/B
44 Pad MR82C55A-5/B MR82C55A/B CLCC 8406601XA 8406602XA SMD#
Pinouts
82C55A (DIP) TOP VIEW
PA0 PA3 PA2 PA1 PA0 RD CS GND A1 A0 PC7 PC6 PC5 PC4 PC0 PC1 PC2 PC3 PB0 PB1 PB2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 RD CS
82C55A (CLCC) TOP VIEW
PA1 PA2 PA3 PA4 PA5 PA6 PA7 PA4 6 5 4 3 2 1 44 43 42 41 40 PA5 PA6 7 GND PA7 NC 8 WR A1 9 RESET A0 10 D0 PC7 11 D1 PC6 12 D2 PC5 13 D3 PC4 14 D4 PC0 15 D5 PC1 16 D6 PC2 17 D7 18 19 20 21 22 23 24 25 26 27 28 VCC PB7 PB6 PB5 PB4 PB3 PC3 PB0 PB1 PB2 WR
82C55A (PLCC) TOP VIEW
RD PA0 PA1 PA2 PA3 NC PA4 PA5 PA6 PA7 WR 39 NC 38 RESET 37 D0 36 D1 35 D2 34 D3 33 D4 32 D5 31 D6 30 D7 29 NC 6 5 4 3 2 1 44 43 42 41 40 CS GND A1 A0 PC7 NC PC6 PC5 PC4 PC0 PC1 7 8 9 10 11 12 13 14 15 16 17 18 1920 21 22 23 24 25 26 27 28 PC2 PC3 PB0 PB1 PB2 NC PB3 PB4 PB5 PB6 PB7 39 38 37 36 35 34 33 32 31 30 29 RESET D0 D1 D2 D3 NC D4 D5 D6 D7 VCC
PB3
PB4
PB5
PB6
PB7
VCC
NC
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999
File Number
2969.2
1
82C55A Pin Description
SYMBOL VCC GND D0-D7 RESET CS RD WR A0-A1.