pdm41028 ETC-unknow, pdm41028 Datasheet

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pdm41028

Manufacturer Part Number
pdm41028
Description
1 Megabit Static Ram 256k X 4-bit
Manufacturer
ETC-unknow
Datasheet
Functional Block Diagram
Rev. 2.2 - 4/29/98
Features
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High speed access times
Com’l: 10, 12 and 15 ns
Ind’l: 12 and 15 ns
Low power operation (typical)
- PDM41028SA
- PDM41028LA
Single +5V ( 10%) power supply
TTL-compatible inputs and outputs
Packages
Plastic SOJ (300 mil) - TSO
Plastic SOJ (400 mil) - SO
Active: 400 mW
Standby: 150 mW
Active: 350 mW
Standby: 100 mW
Addresses
WE
CE
OE
I/O
I/O
I/O
I/O
0
1
2
3
A
A
17
0
Decoder
Input
Data
Control
Description
The PDM41028 is a high-performance CMOS static
RAM organized as 262,144 x 4 bits. Writing to this
device is accomplished when the write enable (WE)
and the chip enable (CE) inputs are both LOW.
Reading is accomplished when WE remains HIGH
and CE and OE are both LOW.
The PDM41028 operates from a single +5V power
supply and all the inputs and outputs are fully TTL-
compatible. The PDM41028 comes in two versions,
the standard power version PDM41028SA and a low
power version the PDM41028LA. The two versions
are functionally the same and only differ in their
power consumption.
The PDM41028 is available in a 28-pin 300-mil SOJ,
and a 28-pin 400-mil SOJ for surface mount
applications.
Column I/O
Memory
Matrix
• • • • •
1 Megabit Static RAM
PDM41028
256K x 4-Bit
1
10
11
12
1
2
3
4
5
6
7
8
9

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pdm41028 Summary of contents

Page 1

... The PDM41028 comes in two versions, the standard power version PDM41028SA and a low power version the PDM41028LA. The two versions are functionally the same and only differ in their power consumption. The PDM41028 is available in a 28-pin 300-mil SOJ, and a 28-pin 400-mil SOJ for surface mount applications ...

Page 2

... Data Inputs/Outputs OE Output Enable Input WE Write Enable Input CE Chip Enable Input NC No Connect V Power (+5V Ground SS MODE Standby Read Write Output Disable Ind. Unit –0.5 to +7.0 V –65 to +135 C –65 to +150 C 1.0 1 125 145 C where T is the ambient temperature Rev. 2.2 - 4/29/98 PDM41028 ...

Page 3

... Unit 230 240 185 195 mA 210 220 165 175 PDM41028 Unit 4 Max 0 0.4 V 0.5 V — ...

Page 4

... Typical Delta Capacitive Loading Figure Additional Lumped Capacitive Loading (pF) Max. Unit 3. 1.5V 1.5V See Figures 1 and 2 +5V 480 OUT 255 LZCE HZCE LZWE HZWE LZOE t ) HZOE 90 120 Rev. 2.2 - 4/29/98 PDM41028 ...

Page 5

... ACE (1, LZCE (1,2, HZCE ( ( AOE (1, LZOE (1, HZOE PDM41028 DATA VALID t HZCE t HZOE DATA VALID (7) -12 - ...

Page 6

... OUT WP2 DATA VALID t HZWE HIGH WP1 t DS DATA VALID HIGH WP1 t DS DATA VALID HIGH-Z PDM41028 LZWE Rev. 2.2 - 4/29/98 ...

Page 7

... (1, LZWE (1, HZWE Data Retention Mode 4. CDR V DR Test Conditions CE V – 0. – 0. 0.2V is less than t HZCE LZCE PDM41028 (7) - DON'T CARE Min ...

Page 8

... Tape & Reel TY Tray Blank Commercial ( Industrial (– + Automotive ( – +105 C) TSO 28-pin 300-mil Plastic SOJ SO 28-pin 400-mil Plastic SOJ Commercial Only (Use 15ns for slower designs.) SA Standard Power LA Low Power PDM41028 - (256Kx4) Static RAM Rev. 2.2 - 4/29/98 ...

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