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UPD43257BCZ-70L Datenblatt(PDF) 5 Page - NEC

Teilenummer UPD43257BCZ-70L
Bauteilbeschribung  MOS INTEGRATED CIRCUIT 256K-BIT CMOS STATIC RAM 32K-WORD BY 8-BIT
PDF  24 Pages
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Hersteller  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD43257BCZ-70L Datenblatt(HTML) 5 Page - NEC

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Data Sheet M10693EJ9V0DS
5
μPD43257B
Block Diagram
Address buffer
Memory cell array
262,144 bits
Input data
controller
A0
A14
I/O8
Sense amplifier /
Switching circuit
Column decoder
/CE1
/WE
CE2
Output data
controller
I/O1
VCC
GND
Address
buffer
Row
decoder
Truth Table
/CE1
CE2
/WE
Mode
I/O
Supply current
H
×
×
Not selected
High impedance
ISB
×
L
×
L
H
H
Read
DOUT
ICCA
L
H
L
Write
DIN
Remark
× : VIH or VIL



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