82C89_06 Datasheet, PDF (1/13 Pages) Intersil Corporation – CMOS Bus Arbiter

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Data Sheet
February 27, 2006
82C89
FN2980.2
CMOS Bus Arbiter
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.
Ordering Information
PART
PART
TEMP.
PKG.
NUMBER MARKING RANGE (°C) PACKAGE DWG. #
CP82C89 CP82C89
0 to +70 20 Ld PDIP E20.3
CP82C89Z* CP82C89Z
(Note)
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.
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10µA (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)
Pinout
82C89 (PDIP, 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
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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