HS-82C37 Datasheet, PDF(1/28 Page) Harris Corporation – Radiation Hardened CMOS High Performance Programmable DMA Controller

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HS-82C37 Datasheet, PDF (1/28 Pages) Harris Corporation – Radiation Hardened CMOS High Performance Programmable DMA Controller

SEMICONDUCTOR

HS-82C37ARH

August 1995

Radiation Hardened CMOS High

Performance Programmable DMA Controller

Features

Description

â¢ Radiation Hardened

- Total Dose >105 RAD (Si)

- Transient Upset > 108 RAD (Si)/s

- Latch Up Free EPI-CMOS

â¢ Low Power Consumption

- IDDSB = 50ÂµA Maximum

- IDDOP = 4.0mA/MHz Maximum

â¢ Pin Compatible with NMOS 8237A and the Harris

82C37A

The Harris HS-82C37ARH is an enhanced, radiation

hardened CMOS version of the industry standard 8237A

Direct Memory Access (DMA) controller, fabricated using the

Harris hardened ï¬eld, self-aligned silicon gate CMOS

process. The HS-82C37ARH offers increased functionality,

improved performance, and dramatically reduced power

consumption for the radiation environment. The high speed,

radiation hardness, and industry standard conï¬guration of

the HS-82C37ARH make it compatible with radiation

hardened microprocessors such as the HS-80C85RH and

the HS-80C86RH.

â¢ High Speed Data Transfers Up To 2.5 MBPS With 5MHz

Clock

â¢ Four Independent Maskable Channels With Autoinitializa-

tion Capability

â¢ Expandable to Any Number of Channels

â¢ Memory-to-Memory Transfer Capability

â¢ CMOS Compatible

â¢ Hardened Field, Self-Aligned, Junction Isolated CMOS

Process

â¢ Single 5V Supply

â¢ Military Temperature Range -55oC to +125oC

The HS-82C37ARH can improve system performance by

allowing external devices to transfer data directly to or from

system memory. Memory-to-memory transfer capability is

also provided, along with a memory block initialization

feature. DMA requests may be generated by either

hardware or software, and each channel is independently

programmable with a variety of features for ï¬exible

operation.

Static CMOS circuit design insures low operating power and

allows gated clock operation for an even further reduction of

power. Multimode programmability allows the user to select

from three basic types of DMA services, and reconï¬guration

under program control is possible even with the clock to the

controller stopped. Each channel has a full 64K address and

word count range, and may be programmed to autoinitialize

these registers following DMA termination (end of process).

The Harris hardened ï¬eld CMOS process results in

performance equal to or greater than existing radiation resis-

tant products at a fraction of the power.

Ordering Information

PART NUMBER

HS1-82C37ARH-Q

HS1-82C37ARH-8

HS1-82C37ARH-Sample

HS9-82C37ARH-Q

HS9-82C37ARH-8

HS9-82C37ARH/Sample

TEMPERATURE RANGE

-55oC to +125oC

+25oC

-55oC to +125oC

+25oC

PACKAGE

40 Lead SBDIP

42 Lead Ceramic Flatpack

CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper I.C. Handling Procedures.

Spec Number 518058

File Number 3042.1

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