4-1

March 1997

82C59A

CMOS Priority Interrupt Controller

Features

• 12.5MHz, 8MHz and 5MHz Versions Available

- 12.5MHz Operation . . . . . . . . . . . . . . . . . . . 82C59A-12

- 8MHz Operation . . . . . . . . . . . . . . . . . . . . . . . 82C59A

- 5MHz Operation . . . . . . . . . . . . . . . . . . . . . . 82C59A-5

• High Speed, “No Wait-State” Operation with 12.5MHz

80C286 and 8MHz 80C86/88

• Pin Compatible with NMOS 8259A

• 80C86/88/286 and 8080/85/86/88/286 Compatible

• Eight-Level Priority Controller, Expandable to

64 Levels

• Programmable Interrupt Modes

• Individual Request Mask Capability

• Fully Static Design

• Fully TTL Compatible

• Low Power Operation

- ICCSB . . . . . . . . . . . . . . . . . . . . . . . . . 10

µA Maximum

- ICCOP . . . . . . . . . . . . . . . . . . . . . 1mA/MHz Maximum

• Single 5V Power Supply

• Operating Temperature Ranges

Description

The Intersil 82C59A is a high performance CMOS Priority

Interrupt Controller manufactured using an advanced 2

µm

CMOS process. The 82C59A is designed to relieve the sys-

tem

CPU

from

the

task

of

polling

in

a

multilevel

priority system. The high speed and industry standard

configuration of the 82C59A make it compatible with micro-

processors such as 80C286, 80286, 80C86/88, 8086/88,

8080/85 and NSC800.

The 82C59A can handle up to eight vectored priority inter-

rupting sources and is cascadable to 64 without additional

circuitry. Individual interrupting sources can be masked or

prioritized to allow custom system configuration. Two modes

of operation make the 82C59A compatible with both 8080/85

and 80C86/88/286 formats.

Static CMOS circuit design ensures low operating power.

The Intersil advanced CMOS process results in performance

equal to or greater than existing equivalent products at a

fraction of the power.

Ordering Information

PART NUMBER

PACKAGE

TEMPERATURE

RANGE

PKG. NO.

5MHz

8MHz

12.5MHz

CP82C59A-5

CP82C59A

CP82C59A-12

28 Ld PDIP

E28.6

IP82C59A-5

IP82C59A

IP82C59A-12

E28.6

CS82C59A-5

CS82C59A

CS82C59A-12

28 Ld PLCC

N28.45

IS82C59A-5

IS82C59A

IS82C59A-12

N28.45

CD82C59A-5

CD82C59A

CD82C59A-12

CERDIP

F28.6

ID82C59A-5

ID82C59A

ID82C59A-12

F28.6

MD82C59A-5/B

MD82C59A/B

MD82C59A-12/B

F28.6

5962-8501601YA

5962-8501602YA

-

SMD#

F28.6

MR82C59A-5/B

MR82C59A/B

MR82C59A-12/B

28 Pad CLCC

J28.A

5962-85016013A

5962-85016023A

-

SMD#

J28.A

CM82C59A-5

CM82C59A

CM82C59A-12

28 Ld SOIC

M28.3

File Number

2784.2

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

http://www.intersil.com or 407-727-9207