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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
First Prev 21 22 23 24 25 26
Die Characteristics
DIE DIMENSIONS:
95 x 100 x 19 ±1mils
METALLIZATION:
Type: Silicon - Aluminum
Thickness: 11kÅ ±1kÅ
Metallization Mask Layout
82C55A
GLASSIVATION:
Type: SiO2
Thickness: 8kÅ ±1kÅ
WORST CASE CURRENT DENSITY:
0.78 x 105 A/cm2
82C55A
RD PA0 PA1 PA2 PA3 PA4 PA5 PA6 PA7
WR
CS
GND
A1
A0
PC7
PC6
PC5
PC4
PC0
PC1
RESET
D0
D1
D2
D3
D4
D5
D6
D7
VCC
PC2 PD3 PB0 PB1 PB2 PB3 PB4 PB5 PB6 PB7
22
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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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