參數(shù)資料
型號(hào)： WSF256K8-72CM
廠商： WHITE ELECTRONIC DESIGNS CORP
元件分類： 存儲(chǔ)器
英文描述： SPECIALTY MEMORY CIRCUIT, CDIP32
封裝： SINGLE CAVITY, SIDE BRAZED, CERAMIC, DIP-32
文件頁(yè)數(shù)： 1/2頁(yè)
文件大?。?/td> 92K
代理商： WSF256K8-72CM
1
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
WSF256K8-XCX
White Electronic Designs
OBSOLETE
December 2002 Rev. 2
256Kx8 SRAM/ FLASH MODULE
FIG. 1
PIN CONFIGURATION
TOP VIEW
128K x 8
Flash
I/O0-7
128K x 8
Flash
128K x 8
SRAM
128K x 8
SRAM
A0-16
OE
Decoder
WE
CS
A17
A18
BLOCK DIAGRAM
PIN DESCRIPTION
A0-18
Address Inputs
I/O0-7
Data Input/Output
CS
Chip Select
OE
Output Enable
WE
Write Enable
VCC
+5.0V Power
VSS
Ground
FEATURES
■ Access Times of 35ns (SRAM) and 70ns (FLASH)
■ JEDEC Standard, Hermetic Ceramic Package, 32
pin DIP (Package 300)
■ 256Kx8 SRAM
■ 256Kx8 5V FLASH
■ Memory Map
Flash Memory: 0H-3FFFFH
SRAM: 40000H-7FFFFH
■ Low Power CMOS
■ Commercial, Industrial and Military Temperature
Ranges
■ TTL Compatible Inputs and Outputs
■ Built in Decoupling Caps and Multiple Ground Pins
for Low Noise Operation
FLASH MEMORY FEATURES
■ 10,000 Erase/Program Cycles
■ Sector Architecture
8 equal size sectors of 16KBytes each
Any combination of sectors can be concurrently
erased. Also supports full chip erase
■ Data Retention, 10 Years at 125°C
■ 5 Volt Programming; 5V ± 10% Supply
■ Embedded Erase and Program Algorithms
■ Hardware and Software Write Protection
■ Page Program Operation and Internal Program
Control Time
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
A18
A16
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O0
I/O1
I/O2
VSS
VCC
WE
A17
A14
A13
A8
A9
A11
OE
A10
CS
I/O7
I/O6
I/O5
I/O4
I/O3
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
WSF256K8-72CMA 制造商:未知廠家 制造商全稱:未知廠家 功能描述:256Kx8 SRAM/ FLASH MODULE
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WSF2816-39G2UC 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:128KX16 SRAM/512KX16 FLASH MODULE
WSF2816-39G2UCA 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:128KX16 SRAM/512KX16 FLASH MODULE
WSF2816-39G2UI 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:128KX16 SRAM/512KX16 FLASH MODULE
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