AS5C2568 데이터 시트보기 (PDF) - Austin Semiconductor
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AS5C2568 Datasheet PDF : 9 Pages
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Austin Semiconductor, Inc.
SRAM
AS5C2568
32K x 8 SRAM
SRAM MEMORY ARRAY
PIN ASSIGNMENT
(Top View)
FEATURES
• Access Times: 12, 15, & 20ns
• Fast output enable (tDOE) for cache applications
• Low active power: 400 mW (TYP)
• Low power standby
• Fully static operation, no clock or refresh required
• High-performance, low-power CMOS double-metal process
• Single +5V (+10%) Power Supply
• Easy memory expansion with CE\
• All inputs and outputs are TTL compatible
OPTIONS
• Timing
12ns access*
15ns access
20ns access
• Package(s)**
Plastic SOJ
MARKING
-12
-15
-20
DJ No. 906
28-PIN PSOJ (DJ)
A14 1
A12 2
A7 3
A6 4
A5 5
A4 6
A3 7
A2 8
A1 9
A0 10
I/O0 11
I/O1 12
I/O2 13
GND 14
28 VCC
27 WE\
26 A13
25 A8
24 A9
23 A11
22 OE\
21 A10
20 CE\
19 I/O7
18 I/O6
17 I/O5
16 I/O4
15 I/O3
• Operating Temperature Ranges
Military -55oC to +125oC
XT
Industrial -40oC to +85oC
IT
* -12 available in IT only.
** For ceramic version of this product, see the MT5C2568
data sheet.
For more products and information
please visit our web site at
www.austinsemiconductor.com
GENERAL DESCRIPTION
The Austin Semiconductor SRAM family employs
high-speed, low power CMOS designs using a four-transistor
memory cell. These SRAMs are fabricated using double-layer
metal, double-layer polysilicon technology.
For flexibility in high-speed memory applications, Aus-
tin Semiconductor offers chip enable (CE\) and output enable
(OE\) capability. These enhancements can place the outputs in
High-Z for additional flexibility in system design.
Writing to these devices is accomplished when write
enable (WE\) and CE\ inputs are both LOW. Reading is accom-
plished when WE\ remains HIGH and CE\ and OE\ go LOW.
The device offers a reduced power standby mode when dis-
abled. This allows system designs to achieve low standby
power requirements.
All devices operate from a single +5V power supply
and all inputs and outputs are fully TTL compatible.
AS5C2568
Rev. 2.6 06/05
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
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