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參數資料
型號: W55F20
廠商: WINBOND ELECTRONICS CORP
元件分類: PROM
英文描述: 4 Mbit Uniform Sector, Serial Flash Memory
中文描述: 2M X 1 FLASH 5V PROM, PDIP8
封裝: DIP-8
文件頁數: 2/7頁
文件大小: 75K
代理商: W55F20
W55FXX
- 2 -
PIN DESCRIPTION
NO.
PIN NAME
I/O
DESCRIPTION
1
EOP
O
End of process signal output
2
CTRL
I
Enable signal for program and erase operations when MODE = 0
Input clock for mode counter when MODE = 1
3
V
SS
I
Ground
4
ADDR
I
Input clock for start adress shift-in
5
DATA
I/O
Bidirectional data line
6
CLK
I
Input clock for data write-in and read-out
7
V
DD
I
Positive voltage supply
8
MODE
I
Mode select control pin
BLOCK DIAGRAM
ADDR
DATA
CLK
shift register
/address counter
Decoder
Write-in Buffer
Control
Circuit
CTRL
MODE
EOP
page-code cells
/page-code flag
/comparator
Output
Buffer
Core
Array
POR
Circuit
Pump
Circuit
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