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UPD444004L Datasheet(PDF) 3 Page - NEC

Part No. UPD444004L
Description  4M-BIT CMOS FAST SRAM 1M-WORD BY 4-BIT
Download  16 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD444004L Datasheet(HTML) 3 Page - NEC

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 3 / 16 page
background image
3
µµµµPD444004L
Data Sheet M14427EJ4V0DS
Block Diagram
A0
|
A19
Memory cell array
4,194,304 bits
GND
VCC
/WE
/OE
/CS
Input data
controller
Sense amplifier /
Switching circuit
Column decoder
Address buffer
I/O1
|
I/O4
Output data
controller
Truth Table
/CS
/OE
/WE
Mode
I/O
Supply current
H
××
Not selected
High impedance
ISB
L
L
H
Read
DOUT
ICC
L
×
LWrite
DIN
L
H
H
Output disable
High impedance
Remark
× : Don’t care


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