82C89 Datasheet, PDF (1/15 Pages) Intersil Corporation – CMOS Bus Arbiter

82C89
March 1997
CMOS Bus Arbiter
Features
Description
• 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 Configura-
tion
• Low Power Operation
- ICCSB . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10µA (Max)
- ICCOP . . . . . . . . . . . . . . . . . . . . . . . . .1mA/MHz (Max)
• Operating Temperature Ranges
- C82C89 . . . . . . . . . . . . . . . . . . . . . . . . . .0^oC to +70^oC
- I82C89 . . . . . . . . . . . . . . . . . . . . . . . . . -40^oC to +85^oC
- M82C89 . . . . . . . . . . . . . . . . . . . . . . . -55^oC to +125^oC
The Intersil 82C89 Bus Arbiter is manufactured using a self-
aligned silicon gate CMOS process (Scaled SAJI IV). This cir-
cuit, along with the 82C88 bus controller, provides full bus arbi-
tration 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 coordi-
nated. The 82C89 also provides high output current and capac-
itive 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 perfor-
mance equal to or greater than existing equivalent products
at a significant power savings.
Ordering Information
PART NUMBER
CP82C89
IP82C89
CS82C89
IS82C89
CD82C89
ID82C89
MD82C89/B
5962-8552801RA
MR82C89/B
5962-85528012A
PACKAGE
20 Ld PDIP
20 Ld PLCC
20 Ld
CERDIP
SMD#
20 Pad
CLCC
SMD#
TEMPERATURE
RANGE
0^oC to +70^oC
-40^oC to +85^oC
0^oC to +70^oC
-40^oC to +85^oC
0^oC to +70^oC
-40^oC to +85^oC
-55^oC to +125^oC
PKG.
NO.
E20.3
E20.3
N20.35
N20.35
F20.3
F20.3
F20.3
F20.3
-55^oC to +125^oC J20.A
J20.A
Pinouts
82C89 (CERDIP)
TOP VIEW
S2 1
IOB 2
SYSB/RESB 3
RESB 4
BCLK 5
INIT 6
BREQ 7
BPRO 8
BPRN 9
GND 10
20 V_CC
19 S1
18 S0
17 CLK
16 LOCK
15 CRQLCK
14 ANYRQST
13 AEN
12 CBRQ
11 BUSY
82C89 (PLCC, CLCC)
TOP VIEW
3 2 1 20 19
RESB 4
BCLK 5
INIT 6
18 S0
17 CLK
16 LOCK
BREQ 7
BPRO 8
15 CRQLCK
14 ANYRQST
9 10 11 12 13
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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File Number 2980.1