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IS61C256AL PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 IS61C256AL
部品説明 32K x 8 High Speed CMOS STATIC RAM
メーカ Integrated Silicon Solution
ロゴ Integrated Silicon Solution ロゴ 



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IS61C256AL Datasheet, IS61C256AL PDF,ピン配置, 機能
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IS61C256AL
ISSI®
32K x 8 HIGH-SPEED CMOS STATIC RAM
PRELIMINARY INFORMATION
DECEMBER 2005
FEATURES
• High-speed access time: 10, 12 ns
• CMOS Low Power Operation
— 1 mW (typical) CMOS standby
— 125 mW (typical) operating
• Fully static operation: no clock or refresh
required
• TTL compatible inputs and outputs
• Single 5V power supply
• Lead-free available
DESCRIPTION
The ISSI IS61C256AL is a very high-speed, low power,
32,768 word by 8-bit static RAMs. It is fabricated using
ISSI's high-performance CMOS technology. This highly
reliable process coupled with innovative circuit design
techniques, yields access times as fast as 10 ns maximum.
When CE is HIGH (deselected), the device assumes a
standby mode at which the power dissipation can be
reduced down to 150 µW (typical) with CMOS input levels.
Easy memory expansion is provided by using an active
LOW Chip Enable (CE) input and an active LOW Output
Enable (OE) input. The active LOW Write Enable (WE)
controls both writing and reading of the memory.
The IS61C256AL is pin compatible with other 32Kx8 SRAMs
and are available in 28-pin SOJ and TSOP (Type I)
packages.
FUNCTIONAL BLOCK DIAGRAM
A0-A14
VDD
GND
I/O0-I/O7
DECODER
32K X 8
MEMORY ARRAY
I/O
DATA
CIRCUIT
COLUMN I/O
CE
OE
WE
CONTROL
CIRCUIT
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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.
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774
Rev. 00A
11/29/05
1

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