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IDT71V632S8PF8 Datasheet(PDF) 1 Page - Integrated Device Technology

Part # IDT71V632S8PF8
Description  64K x 32 3.3V Synchronous SRAM Pipelined Outputs Burst Counter, Single Cycle Deselect
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Manufacturer  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

IDT71V632S8PF8 Datasheet(HTML) 1 Page - Integrated Device Technology

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AUGUST 2001
DSC-3619/04
1
©2000 Integrated Device Technology, Inc.
Features
x
x
x
x
x
64K x 32 memory configuration
x
x
x
x
x
Supports high system speed:
Commercial:
– A4 4.5ns clock access time (117 MHz)
Commercial and Industrial:
– 5
5ns clock access time (100 MHz)
– 6
6ns clock access time (83 MHz)
– 7
7ns clock access time (66 MHz)
x
x
x
x
x
Single-cycle deselect functionality (Compatible with
Micron Part # MT58LC64K32D7LG-XX)
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x
x
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x
LBO input selects interleaved or linear burst mode
x
x
x
x
x
Self-timed write cycle with global write control (
GW), byte
write enable (
BWE), and byte writes (BWx)
x
x
x
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x
Power down controlled by ZZ input
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x
Operates with a single 3.3V power supply (+10/-5%)
x
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x
Packaged in a JEDEC Standard 100-pin rectangular plastic
thin quad flatpack (TQFP).
Description
The IDT71V632 is a 3.3V high-speed SRAM organized as 64K x 32
Pin Description Summary
Pentium processor is a trademark of Intel Corp.
PowerPC is a trademark of International Business Machines, Inc.
64K x 32
3.3V Synchronous SRAM
Pipelined Outputs
Burst Counter, Single Cycle Deselect
IDT71V632
with full support of the Pentium™ and PowerPC™ processor interfaces.
The pipelined burst architecture provides cost-effective 3-1-1-1 second-
ary cache performance for processors up to 117MHz.
The IDT71V632 SRAM contains write, data, address, and control
registers. Internal logic allows the SRAM to generate a self-timed write
based upon a decision which can be left until the extreme end of the write
cycle.
The burst mode feature offers the highest level of performance to the
system designer, as the IDT71V632 can provide four cycles of data for
asingleaddresspresentedtotheSRAM.Aninternalburstaddresscounter
accepts the first cycle address from the processor, initiating the access
sequence.Thefirstcycleofoutputdatawillbepipelinedforonecyclebefore
it is available on the next rising clock edge. If burst mode operation is
selected (
ADV=LOW),thesubsequentthreecyclesofoutputdatawillbe
availabletotheuseronthenextthreerisingclockedges.Theorderofthese
three addresses will be defined by the internal burst counter and the
LBO
input pin.
TheIDT71V632SRAMutilizesIDT'shigh-performance,high-volume
3.3V CMOS process, and is packaged in a JEDEC Standard 14mm x
20mm100-pinthinplasticquadflatpack(TQFP)foroptimumboarddensity
in both desktop and notebook applications.
A0–A15
Address Inputs
Input
Synchronous
CE
Chip Enable
Input
Synchronous
CS0,
CS1
Chips Selects
Input
Synchronous
OE
Output Enable
Input
Asynchronous
GW
Global Write Enable
Input
Synchronous
BWE
Byte Write Enable
Input
Synchronous
BW1, BW2, BW3, BW4
Individual Byte Write Selects
Input
Synchronous
CLK
Clock
Input
N/A
ADV
Burst Address Advance
Input
Synchronous
ADSC
Address Status (Cache Controller)
Input
Synchronous
ADSP
Address Status (Processor)
Input
Synchronous
LBO
Linear / Interleaved Burst Order
Input
DC
ZZ
Sleep Mode
Input
Asynchronous
I/O0–I/O31
Data Input/Output
I/O
Synchronous
VDD, VDDQ
3.3V
Power
N/A
VSS, VSSQ
Array Ground, I/O Ground
Power
N/A
3619 tbl 01


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