FN2980 Rev 3.00

Page 1 of 14

September 4, 2015

FN2980

Rev 3.00

September 4, 2015

82C89

CMOS Bus Arbiter

DATASHEET

The Intersil 82C89 Bus Arbiter is manufactured using a self-

aligned silicon gate CMOS process (Scaled SAJI IV). This

circuit, along with the 82C88 bus controller, provides full bus

arbitration and control for multi-processor systems. The 82C89

is typically used in medium to large 80C86 or 80C88 systems

where access to the bus by several processors must be

coordinated. The 82C89 also provides high output current and

capacitive drive to eliminate the need for additional bus

buffering.

Static CMOS circuit design insures low operating power. The

advanced Intersil SAJI CMOS process results in

performance equal to or greater than existing equivalent

products at a significant power savings.

Features

• Pin Compatible with Bipolar 8289

• Performance Compatible with:

- 80C86/80C88 . . . . . . . . . . . . . . . . . . . . . . . . . (5/8MHz)

• Provides Multi-Master System Bus Control and

Arbitration

• Provides Simple Interface with 82C88/8288 Bus

Controller

• Synchronizes 80C86/8086, 80C88/8088 Processors with

Multi-Master Bus

• Bipolar Drive Capability

• Four Operating Modes for Flexible System Configuration

• Low Power Operation

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

A (Max)

- ICCOP . . . . . . . . . . . . . . . . . . . . . . . . . 1mA/MHz (Max)

• Operating Temperature Ranges

- C82C89 . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +70°C

- M82C89 . . . . . . . . . . . . . . . . . . . . . . . .-55°C to +125°C

• Pb-Free Plus Anneal Available (RoHS Compliant)

Ordering Information

PART

NUMBER

PART

MARKING

TEMP.

RANGE (°C)

PACKAGE

PKG.

DWG. #

CP82C89

(No longer

available or

supported)

CP82C89

0 to +70

20 Ld PDIP

E20.3

CP82C89Z*

(Note) (No

longer

available or

supported)

CP82C89Z

0 to +70

20 Ld PDIP

(Pb-free)

E20.3

MD82C89/B MD82C89/B

-55 to +125 20 Ld CERDIP F20.3

NOTE: Intersil Pb-free plus anneal products employ special Pb-free

material sets; molding compounds/die attach materials and 100%

matte tin plate termination finish, which are RoHS compliant and

compatible with both SnPb and Pb-free soldering operations. Intersil

Pb-free products are MSL classified at Pb-free peak reflow

temperatures that meet or exceed the Pb-free requirements of

IPC/JEDEC J STD-020.

*Pb-free PDIPs can be used for through hole wave solder processing

only. They are not intended for use in Reflow solder processing

applications.

Pinout

82C89 (PDIP, CERDIP)

TOP VIEW

11

12

13

14

15

16

17

18

19

20

10

9

8

7

6

5

4

3

2

1

CLK

ANYRQST

BUSY

CBRQ

AEN

CRQLCK

LOCK

S0

S1

GND

RESB

IOB

S2

BCLK

INIT

BREQ

BPRO

BPRN

SYSB/RESB