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ID82C89 Datasheet

  • ID82C89

  • CMOS Bus Arbiter

  • 15頁

  • INTERSIL   INTERSIL

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82C89
March 1997
CMOS Bus Arbiter
Description
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 signi鏗乧ant power savings.
Features
鈥?Pin Compatible with Bipolar 8289
鈥?Performance Compatible with:
- 80C86/80C88 . . . . . . . . . . . . . . . . . . . . . . . . . .(5/8MHz)
鈥?Provides Multi-Master System Bus Control and
Arbitration
鈥?Provides Simple Interface with 82C88/8288 Bus
Controller
鈥?Synchronizes 80C86/8086, 80C88/8088 Processors
with Multi-Master Bus
鈥?Bipolar Drive Capability
鈥?Four Operating Modes for Flexible System Con鏗乬ura-
tion
鈥?Low Power Operation
- ICCSB . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10碌A (Max)
- ICCOP . . . . . . . . . . . . . . . . . . . . . . . . .1mA/MHz (Max)
鈥?Operating Temperature Ranges
- C82C89 . . . . . . . . . . . . . . . . . . . . . . . . . .0
o
C to +70
o
C
- I82C89 . . . . . . . . . . . . . . . . . . . . . . . . . -40
o
C to +85
o
C
- M82C89 . . . . . . . . . . . . . . . . . . . . . . . -55
o
C to +125
o
C
Ordering Information
PART NUMBER
CP82C89
IP82C89
CS82C89
IS82C89
CD82C89
ID82C89
MD82C89/B
5962-8552801RA
MR82C89/B
5962-85528012A
SMD#
20 Pad
CLCC
SMD#
-55
o
C to +125
o
C
20 Ld
CERDIP
20 Ld PLCC
PACKAGE
20 Ld PDIP
TEMPERATURE
RANGE
0
o
C to +70
o
C
-40
o
C to +85
o
C
0
o
C to +70
o
C
-40
o
C to +85
o
C
0
o
C to +70
o
C
-40
o
C to +85
o
C
-55
o
C to +125
o
C
PKG.
NO.
E20.3
E20.3
N20.35
N20.35
F20.3
F20.3
F20.3
F20.3
J20.A
J20.A
Pinouts
82C89 (CERDIP)
TOP VIEW
S2
IOB
SYSB/RESB
RESB
BCLK
INIT
BREQ
BPRO
BPRN
1
2
3
4
5
6
7
8
9
20 V
CC
19 S1
18 S0
17 CLK
16 LOCK
INIT
15 CRQLCK
BREQ
14 ANYRQST
13 AEN
12 CBRQ
11 BUSY
BPRO
6
7
8
9
BPRN
10
GND
11
BUSY
12
CBRQ
13
AEN
RESB
BCLK
4
5
18 S0
17 CLK
16 LOCK
15 CRQLCK
14 ANYRQST
82C89 (PLCC, CLCC)
TOP VIEW
SYSB/
RESB
V
CC
20
IOB
S2
3
2
1
19
GND 10
S1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207
|
Copyright
漏
Intersil Corporation 1999
File Number
2980.1
4-343

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