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Updated at 17/06/2025 10:30:15(UTC+8)

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Description

The CS82C55AZ is a high performance CMOS Programmable Peripheral Interface, 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.
Pin compatible with the NMOS 8255A
24 Programmable I/O pins
Fully TTL compatible
High speed, no "Wait State" operation
Direct bit set/reset capability
Enhanced control word read capability
L7 process
2.5mA Drive capability on all I/O ports
10µA Low standby power (ICCSB)
ESD sensitive device, take proper precaution while handling the device.

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CS82C55AZ Specifications

Attribute	Attribute Value

Datasheet	Datasheet
3D Model	3D Model
Mounting Style	Surface Mount
Number of Pins	44 Pin
Case/Package	PLCC-44
Supply Voltage (DC)	4.50V (min)
Supply Current	1 mA
Number of Positions	44 Position
Clock Speed	8.00 MHz
Number of Inputs and Outputs	24 Input IO
Operating Temperature (Max)	70 ℃
Operating Temperature (Min)	0 ℃
Supply Voltage	4.5V ~ 5.5V
Supply Voltage (Max)	5.5 V
Supply Voltage (Min)	4.5 V
	Show
Size-Length	16.66 mm
Size-Width	16.66 mm
Size-Height	3.69 mm
Operating Temperature	0℃ ~ 70℃
Product Lifecycle Status	Active
Packaging	Each
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99

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