HS-82C55ARH General Description
The Intersil HS-82C55ARH is a high performance, radiation hardened CMOS version of the industry standard 8255A and is manufactured using a
hardened field, self-aligned silicongate CMOS process. It is a general purpose programmable I/O device which may be used with many different
microprocessors. There are 24 I/O pins which are organized into two 8-bit and two 4-bit ports. Each port may be programmed to function as either an
input or an output. Additionally, one of the 8-bit ports may be programmed for bi-directional operation,and the two 4-bit ports can be programmed to
provide handshaking capabilities. The high performance, radiation hardness, and industry standard configuration of the HS-82C55ARH make it compatible with the HS-80C86RH radiation hardened microprocessor.
Static CMOS circuit design insures low operating power. Bus hold circuitry eliminates the need for pull-up resistors. The Intersil hardened field CMOS
process results in performance equal to or greater than existing radiation resistant products at a fraction of the power.
HS-82C55ARH Maximum Ratings
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+7.0V
Input, Output or I/O Voltage . . . . . . . . . . . . .VSS-0.3V to VDD+0.3V
Storage Temperature Range . . . . . . . . . . . . . . . . . -65to +150
Junction Temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +175
Lead Temperature (Soldering 10s). . . . . . . . . . . . . . . . . . . . +300
ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Class 1
HS-82C55ARH Features
* Radiation Hardened
- Total Dose >105 RAD (Si)
- Transient Upset <108 RAD (Si)/s
- Latch Up Free EPI-CMOS
* Low Power Consumption
- IDDSB = 20A
* Pin Compatible with NMOS 8255A and the Intersil 82C55A
* High Speed, No "Wait State" Operation with 5MHz HS-80C86RH
* 24 Programmable I/O Pins
* Bus-Hold Circuitry on All I/O Ports Eliminates Pull-Up Resistors
* Direct Bit Set/Reset Capability
* Enhanced Control Word Read Capability
* Hardened Field, Self-Aligned, Junction Isolated CMOS Process
* Single 5V Supply
* 2.0mA Drive Capability on All I/O Port Outputs
* Military Temperature Range: -55 to +125
HS-82C55ARH Connection Diagram
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