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WS256K32-25G4I

WS256K32-25G4I首页预览图
型号: WS256K32-25G4I
PDF文件:
  • WS256K32-25G4I PDF文件
  • WS256K32-25G4I PDF在线浏览
功能描述: 256Kx32 SRAM MODULE
PDF文件大小: 176.62 Kbytes
PDF页数: 共7页
制造商: ETC1[List of Unclassifed Manufacturers]
制造商LOGO: ETC1[List of Unclassifed Manufacturers] LOGO
制造商网址:
捡单宝
PDF页面索引
100%
1
White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com
WS256K32-XXX
HI-RELIABILITY PRODUCT
256Kx32 SRAM MODULE
PRELIMINARY*
FEATURES
Access Times 20, 25, 35ns
MIL-STD-883 Compliant Devices Available
Packaging
66 pin, PGA Type, 1.185 inch square, Hermetic
Ceramic HIP (Package 401)
68 lead, 40mm, Hermetic CQFP (Package 501)
Organized as 256Kx32, User Configurable as 512Kx16
Upgradable to 512Kx32 for future expansion
Data I/O Compatible with 3.3V devices
2V Data Retention devices available
(WS256K32L-XXX low power version only)
Commercial, Industrial and Military Temperature Range
5 Volt Power Supply
Low Power CMOS
TTL Compatible Inputs and Outputs
Weight
WS256K32N-XHX - 13 grams typical
WS256K32-XG4X - 20 grams typical
* This data sheet describes a product under development, not fully
characterized, and is subject to change without notice.
FIG. 1 PIN CONFIGURATION FOR WS256K32N-XHX
I/O8
I/O9
I/O10
A13
A14
A15
A16
A17
I/O0
I/O1
I/O2
NC
NC
GND
I/O
11
A10
A11
A12
VCC
CS1
NC
I/O
3
I/O15
I/O14
I/O13
I/O12
OE
NC
WE
1
I/O7
I/O6
I/O5
I/O4
I/O24
I/O25
I/O26
A6
A7
NC
A
8
A9
I/O16
I/O17
I/O18
VCC
NC
NC
I/O
27
A3
A4
A5
WE2
CS2
GND
I/O
19
I/O31
I/O30
I/O29
I/O28
A0
A1
A2
I/O23
I/O22
I/O21
I/O20
11 22 33 44 55 66
1 12 23 34 45 56
BLOCK DIAGRAM
TOP VIEW
PIN DESCRIPTION
I/O0-31 Data Inputs/Outputs
A0-17 Address Inputs
WE1-2 Write Enables
CS1-2 Chip Selects
OE Output Enable
VCC Power Supply
GND Ground
NC Not Connected
256K x 16
16
I/O0-15
CS
1
256K x 16
16
I/O16-31
2
A0-17
OE
WE
CS
WE
12
October 2000 Rev. 2
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