參數(shù)資料
型號(hào)： IS64VF25618A-7.5TQA3
廠商： INTEGRATED SILICON SOLUTION INC
元件分類： DRAM
英文描述： 128K x 32, 128K x 36, 256K x 18 4 Mb SYNCHRONOUS FLOW-THROUGH STATIC RAM
中文描述： 256K X 18 CACHE SRAM, 7.5 ns, PQFP100
封裝： TQFP-100
文件頁(yè)數(shù)： 1/25頁(yè)
文件大?。?/td> 173K
代理商： IS64VF25618A-7.5TQA3
Integrated Silicon Solution, Inc. — 1-800-379-4774
Rev. 00A
08/11/05
1
ISSI
IS61(64)LF12832A IS64VF12832A
IS61(64)LF12836A IS61(64)VF12836A
IS61(64)LF25618A IS61(64)VF25618A
Copyright 2005 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time
without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are advised to
obtain the latest version of this device specification before relying on any published information and before placing orders for products.
FEATURES
Internal self-timed write cycle
Individual Byte Write Control and Global Write
Clock controlled, registered address, data and
control
Burst sequence control using MODE input
Three chip enable option for simple depth expan-
sion
and address pipelining
Common data inputs and data outputs
Auto Power-down during deselect
Single cycle deselect
Snooze MODE for reduced-power standby
Power Supply
LF: V
DD
3.3V + 5%, V
DDQ
3.3V/2.5V + 5%
VF: V
DD
2.5V -5% +10%, V
DDQ
2.5V -5% +10%
JEDEC 100-Pin TQFP, 119-pin PBGA, and
165-pin PBGA packages
Automotive temperature available
Lead-free available
PRELIMINARY INFORMATION
AUGUST 2005
128K x 32, 128K x 36, 256K x 18
4 Mb SYNCHRONOUS FLOW-THROUGH
STATIC RAM
DESCRIPTION
The
ISSI
IS61(64)LF12832A,
IS61(64)LF/VF12836A and IS61(64)LF/VF25618A are
high-speed, low-power synchronous static
RAMs
designed
to provide burstable,
high-performance
memory for commu-
nication
and
networking
IS61(64)LF12832A is organized as 131,072 words by 32
bits. The IS61(64)LF/VF12836A is organized as 131,072
words by 36 bits. The IS61(64)LF/VF25618A is organized
as 262,144 words by 18 bits. Fabricated with
ISSI
's
advanced CMOS technology, the device integrates a 2-bit
burst counter, high-speed SRAM core, and high-drive
capability outputs into a single monolithic circuit. All syn-
chronous inputs pass through registers controlled by a
positive-edge-triggered single clock input.
IS64VF12832A,
applications.
The
Write cycles are internally self-timed and are initiated by
the rising edge of the clock input. Write cycles can be one
to four bytes wide as controlled by the write control inputs.
Separate byte enables allow individual bytes to be written.
Byte write operation is performed by using byte write
enable (
BWE
) input combined with one or more individual
byte write signals (
BWx
). In addition, Global Write (
GW
) is
available for writing all bytes at one time, regardless of the
byte write controls.
Bursts can be initiated with either
ADSP
(Address Status
Processor) or
ADSC
(Address Status Cache Controller)
input pins. Subsequent burst addresses can be generated
internally and controlled by the
ADV
(burst address ad-
vance) input pin.
The mode pin is used to select the burst sequence order,
Linear burst is achieved when this pin is tied LOW.
Interleave burst is achieved when this pin is tied HIGH or
left floating.
FAST ACCESS TIME
Symbol
t
KQ
t
KC
Parameter
Clock Access Time
Cycle Time
Frequency
-6.5
6.5
7.5
133
-7.5
7.5
8.5
117
Units
ns
ns
MHz
相關(guān)PDF資料
PDF描述
IS61LF12832A-7.5B3I 128K x 32, 128K x 36, 256K x 18 4 Mb SYNCHRONOUS FLOW-THROUGH STATIC RAM
IS61LF12832A-7.5TQ 128K x 32, 128K x 36, 256K x 18 4 Mb SYNCHRONOUS FLOW-THROUGH STATIC RAM
IS61LF12832A-7.5TQI 128K x 32, 128K x 36, 256K x 18 4 Mb SYNCHRONOUS FLOW-THROUGH STATIC RAM
IS61LF12832A-7.5TQLI 128K x 32, 128K x 36, 256K x 18 4 Mb SYNCHRONOUS FLOW-THROUGH STATIC RAM
IS61LF12836A 128K x 32, 128K x 36, 256K x 18 4 Mb SYNCHRONOUS FLOW-THROUGH STATIC RAM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
IS64VPS12832A-200TQA3 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:128K x 32, 128K x 36, 256K x 18 4 Mb SYNCHRONOUS PIPELINED, SINGLE CYCLE DESELECT STATIC RAM
IS64VPS12836A 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:128K x 32, 128K x 36, 256K x 18 4 Mb SYNCHRONOUS PIPELINED, SINGLE CYCLE DESELECT STATIC RAM
IS64VPS12836A-200TQA3 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:128K x 32, 128K x 36, 256K x 18 4 Mb SYNCHRONOUS PIPELINED, SINGLE CYCLE DESELECT STATIC RAM
IS64VPS25618A 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:128K x 32, 128K x 36, 256K x 18 4 Mb SYNCHRONOUS PIPELINED, SINGLE CYCLE DESELECT STATIC RAM
IS64VPS25618A-200TQA3 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:128K x 32, 128K x 36, 256K x 18 4 Mb SYNCHRONOUS PIPELINED, SINGLE CYCLE DESELECT STATIC RAM
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