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MWS5101

Description
256 X 4 STANDARD SRAM, 350 ns, PDIP22
Categorystorage   
File Size43KB,7 Pages
ManufacturerIntersil ( Renesas )
Websitehttp://www.intersil.com/cda/home/
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MWS5101 Overview

256 X 4 STANDARD SRAM, 350 ns, PDIP22

MWS5101,
MWS5101A
March 1997
256-Word x 4-Bit
LSI Static RAM
Description
The MWS5101 and MWS5101A are 256 word by 4-bit static
random access memories designed for use in memory
systems where high speed, very low operating current, and
simplicity in use are desirable. They have separate data
inputs and outputs and utilize a single power supply of 4V to
6.5V. The MWS5101 and MWS5101A differ in input voltage
characteristics (MWS5101A is TTL compatible).
Two Chip Select inputs are provided to simplify system
expansion. An Output Disable control provides Wire-OR
capability and is also useful in common Input/Output
systems by forcing the output into a high impedance state
during a write operation independent of the Chip Select input
condition. The output assumes a high impedance state
when the Output Disable is at high level or when the chip is
deselected by CS1 and/or CS2.
The high noise immunity of the CMOS technology is
preserved in this design. For TTL interfacing at 5V operation,
excellent system noise margin is preserved by using an
external pull-up resistor at each input.
For applications requiring wider temperature and operating
voltage ranges, the mechanically and functionally equivalent
static RAM, CDP1822 may be used.
The MWS5101 and MWS5101A types are supplied in 22
lead hermetic dual-in-line, sidebrazed ceramic packages (D
suffix), in 22 lead dual-in-line plastic packages (E suffix), and
in chip form (H suffix).
Features
• Industry Standard Pinout
• Very Low Operating Current . . . . . . . . . . . . . . . . . . 8mA
at V
DD
= 5V and Cycle Time = 1µs
• Two Chip Select Inputs Simple Memory Expansion
• Memory Retention for Standby. . . . . . . . . . . . . 2V (Min)
Battery Voltage
• Output Disable for Common I/O Systems
• Three-State Data Output for Bus Oriented Systems
• Separate Data Inputs and Outputs
• TTL Compatible (MWS5101A)
Pinout
MWS5101, MWS5101A
(PDIP, SBDIP)
TOP VIEW
A3
A2
A1
A0
A5
A6
A7
V
SS
DI1
1
2
3
4
5
6
7
8
9
22
21
20
19
18
17
16
15
14
13
12
V
DD
A4
R/W
CSI
O.D.
CS2
DO4
DI4
DO3
DI3
DO2
DO1 10
DI2 11
Ordering Information
MWS5101
PACKAGE
PDIP
Burn-In
SBDIP
Burn-In
TEMP. RANGE
0
o
C to +70
o
C
0
o
C to +70
o
C
250ns
MWS5101EL2
350ns
MWS5101ELS
MWS5101A
250ns
MWS5101AEL2
350ns
MWS5101AEL3
PKG. NO.
E22.4
MWS5101AEL3X E22.4
-
MWS5101DL3X
-
MWS5101ADL3
D22.4A
D22.4A
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207
|
Copyright
©
Intersil Corporation 1999
File Number
1106.2
6-56

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MWS5101 MWS5101ELS MWS5101EL2 MWS5101DL3X MWS5101AEL3X MWS5101AEL3 MWS5101AEL2 MWS5101ADL3 MWS5101A
Description 256 X 4 STANDARD SRAM, 350 ns, PDIP22 256 X 4 STANDARD SRAM, 350 ns, PDIP22 256X4 STANDARD SRAM, 250ns, PDIP22, PLASTIC, DIP-22 256 X 4 STANDARD SRAM, 350 ns, CDIP22 256X4 STANDARD SRAM, 350ns, PDIP22, PLASTIC, DIP-22 256X4 STANDARD SRAM, 350ns, PDIP22, PLASTIC, DIP-22 256 X 4 STANDARD SRAM, 250 ns, PDIP22 256 X 4 STANDARD SRAM, 350 ns, CDIP22 256 X 4 STANDARD SRAM, 350 ns, PDIP22
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