AS5C4009LL Datasheet, PDF (1/12 Pages) List of Unclassifed Manufacturers – SRAM

Austin Semiconductor, Inc.
SRAM
AS5C4009LL
512K x 8 SRAM
Ultra Low Power SRAM
AVAILABLE AS MILITARY
SPECIFICATION
• SMD 5962-95613^1,2
• MIL STD-883¹
FEATURES
• Ultra Low Power with 2V Data Retention
(0.2mW MAX worst case Power-down standby)
• Fully Static, No Clocks
• Single +5V ±10% power supply
• Easy memory expansion with CE\ and OE\ options
• All inputs and outputs are TTL-compatible
• Three state outputs
• Operating temperature range:
Ceramic -55^oC to +125^oC & -40^oC to +85^oC
Plastic -40^oC to +85^oC³
1. Not applicable to plastic package
2. Applies to CW package only.
3. Contact factory for -55^oC to +125^oC
OPTIONS
MARKING
• Timing
55ns access
70ns access
85ns access
100ns access
• Packages
Ceramic Dip (600 mil)
Ceramic SOJ⁵
Plastic TSOP
-55⁴
-70
-85
-100
CW
ECJ
DG
No. 112
No. 502
No. 1002
4. For DG package, contact factory
5. Contact Factory
NOTE: Not all combinations of operating temperature, speed, data retention and low power are
necessarily available. Please contact the factory for availability of specific part number
combinations.
GENERAL DESCRIPTION
The AS5C4009LL is organized as 524,288 x 8 SRAM utilizing a
special ultra low power design process. ASI’s pinout adheres to the
JEDEC standard for pinout on 4 megabit SRAMs. The evolutionary 32
pin version allows for easy upgrades from the 1 meg SRAM design.
For flexibility in memory applications, ASI offers chip enable (CE\)
and output enable (OE\) capabilities. These features can place the
outputs in High-Z for additional flexibility in system design.
This devices operates from a single +5V power supply and all
inputs and outputs are fully TTL-compatible.
Writing to these devices is accomplished when write enable (WE\)
and CE\ inputs are both LOW. Reading is accomplished when WE\
remains HIGH and CE\ and OE\ go LOW. The device offers a re-
duced power standby mode when disabled, by lowering VCC to 2V and
maintaining CE\ = 2V. This allows system designers to meet ultra low
standby power requirements.
AS5C4009LL
Rev. 4.0 2/01
1
PIN ASSIGNMENT
(Top View)
32-Pin DIP, 32-Pin SOJ
& 32-Pin TSOP
A18 1
A16 2
A14 3
A12 4
A7 5
A6 6
A5 7
A4 8
A3 9
A2 10
A1 11
A0 12
I/01 13
I/02 14
I/03 15
Vss 16
32 Vcc
31 A15
30 A17
29 WE\
28 A13
27 A8
26 A9
25 A11
24 OE\
23 A10
22 CE\
21 I/08
20 I/07
19 I/06
18 I/05
17 I/04
Pin Name
WE\
CE\
OE\
A0 - A18
I/O1 - I/O8
Vcc
Vss
Function
Write Enable Input
Chip Select Input
Output Enable Input
Address Inputs
Data Inputs/Outputs
Power
Ground
For more products and information
please visit our web site at
www.austinsemiconductor.com
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.