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WMS256K16L-35FGC

Description
Standard SRAM, 256KX16, 35ns, CMOS, CDSO44, CERAMIC, FP-44
Categorystorage    storage   
File Size109KB,7 Pages
ManufacturerWhite Microelectronics
Download Datasheet Parametric View All

WMS256K16L-35FGC Overview

Standard SRAM, 256KX16, 35ns, CMOS, CDSO44, CERAMIC, FP-44

WMS256K16L-35FGC Parametric

Parameter NameAttribute value
package instructionCERAMIC, FP-44
Reach Compliance Codeunknown
Maximum access time35 ns
JESD-30 codeR-CDSO-G44
memory density4194304 bit
Memory IC TypeSTANDARD SRAM
memory width16
Number of functions1
Number of terminals44
word count262144 words
character code256000
Operating modeASYNCHRONOUS
Maximum operating temperature70 °C
Minimum operating temperature
organize256KX16
Package body materialCERAMIC, METAL-SEALED COFIRED
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Parallel/SerialPARALLEL
Certification statusNot Qualified
Maximum supply voltage (Vsup)5.5 V
Minimum supply voltage (Vsup)4.5 V
Nominal supply voltage (Vsup)5 V
surface mountYES
technologyCMOS
Temperature levelCOMMERCIAL
Terminal formGULL WING
Terminal locationDUAL
Base Number Matches1
WMS256K16-XXX
HI-RELIABILITY PRODUCT
256Kx16 MONOLITHIC SRAM, SMD 5962-96902
FEATURES
s
Access Times 17, 20, 25, 35ns
s
MIL-STD-883 Compliant Devices Available
s
Packaging
•44 pin Ceramic SOJ (Package 102)
• 44 lead Ceramic Flatpack (Package 225)
• 44 lead Formed Ceramic Flatpack
s
Organized as 256Kx16
s
Data Byte Control:
Lower Byte (LB) = I/O
1-8
Upper Byte (UB) = I/O
9-16
s
2V Minimum Data Retention for battery back up operation
(WMS256K16L-XXX Low Power Version Only)
s
Commercial, Industrial and Military Temperature Range
s
5 Volt Power Supply
s
Low Power CMOS
s
TTL Compatible Inputs and Outputs
PIN CONFIGURATION FOR WMS256K16-XXX
44 CSOJ
44 FLATPACK
PIN DESCRIPTION
A
0-17
LB
A17
A16
A15
OE
UB
LB
I/O16
I/O15
I/O14
I/O13
GND
V
CC
I/O12
I/O11
I/O10
I/O9
NC
A14
A13
A12
A11
A10
Address Inputs
Lower-Byte Control (I/O
1-8
)
Upper-Byte Control (I/O
9-16
)
Data Input/Output
Chip Select
Output Enable
Write Enable
+5.0V Power
Ground
No Connection
TOP VIEW
A0
A1
A2
A3
A4
CS
I/O1
I/O2
I/O3
I/O4
V
CC
GND
I/O5
I/O6
I/O7
I/O8
WE
A5
A6
A7
A8
A9
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
UB
I/O
1-16
CS
OE
WE
V
CC
GND
NC
October 2000 Rev. 4
1
White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com
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