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IDT71V432S7PFI fiches techniques PDF

Integrated Device Technology - 32K x 32 CacheRAM 3.3V Synchronous SRAM Burst Counter Single Cycle Deselect

Numéro de référence IDT71V432S7PFI
Description 32K x 32 CacheRAM 3.3V Synchronous SRAM Burst Counter Single Cycle Deselect
Fabricant Integrated Device Technology 
Logo Integrated Device Technology 





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IDT71V432S7PFI fiche technique
32K x 32 CacheRAM
3.3V Synchronous SRAM
Burst Counter
Single Cycle Deselect
IDT71V432
Features
x 32K x 32 memory configuration
x Supports high-performance system speed:
Commercial and Industrial:
— 5ns Clock-to-Data Access (100MHz)
— 6ns Clock-to-Data Access (83MHz)
— 7ns Clock-to-Data Access (66MHz)
x Single-cycle deselect functionality (Compatible with
Micron Part # MT58LC32K32D7LG-XX)
x LBO input selects interleaved or linear burst mode
x Self-timed write cycle with global write control (GW), byte
write enable (BWE), and byte writes (BWx)
x Power down controlled by ZZ input
x Operates with a single 3.3V power supply (+10/-5%)
x Packaged in a JEDEC Standard 100-pin rectangular plastic
thin quad flatpack (TQFP).
Description
The IDT71V432 is a 3.3V high-speed 1,048,576-bit CacheRAM
organized as 32K x 32 with full support of the Pentium™ and PowerPC™
processor interfaces. The pipelined burst architecture provides cost-
effective 3-1-1-1 secondary cache performance for processors up to
100 MHz.
The IDT71V432 CacheRAM contains write, data, address, and
control registers. Internal logic allows the CacheRAM 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 IDT71V432 can provide four cycles of data for
a single address presented to the CacheRAM. An internal burst address
counter accepts the first cycle address from the processor, initiating the
access sequence. The first cycle of output data will be pipelined for one
cycle before it is available on the next rising clock edge. If burst mode
operation is selected (ADV=LOW), the subsequent three cycles of output
data will be available to the user on the next three rising clock edges. The
order of these three addresses will be defined by the internal burst counter
and the LBO input pin.
The IDT71V432 CacheRAM utilizes IDT's high-performance, high-
volume 3.3V CMOS process, and is packaged in a JEDEC Standard
14mmx20mm100-pinthinplasticquadflatpack(TQFP)foroptimumboard
density in both desktop and notebook applications.
Pin Description Summary
A0–A14
Address Inputs
CE
CS0, CS1
Chip Enable
Chips Selects
OE Output Enable
GW Global Write Enable
BWE Byte Write Enable
BW1, BW2, BW3, BW4
Individual Byte Write Selects
CLK Clock
ADV Burst Address Advance
ADSC
Address Status (Cache Controller)
ADSP
Address Status (Processor)
LBO Linear / Interleaved Burst Order
ZZ Sleep Mode
I/O0–I/O31
Data Input/Output
VDD 3.3V Power
VSS Ground
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
I/O
Power
Ground
Synchronous
Synchronous
Synchronous
Asynchronous
Synchronous
Synchronous
Synchronous
N/A
Synchronous
Synchronous
Synchronous
DC
Asynchronous
Synchronous
DC
DC
3104 tbl 01
CacheRAM is a trademark of Integrated Device Technology.
Pentium processor is a trademark of Intel Corp.
PowerPC is a trademark of International Business Machines, Inc.
©2000 Integrated Device Technology, Inc.
1
AUGUST 2001
DSC-3104/05

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