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Número de pieza
componentes Descripción
HT23C256 Ver la hoja de datos (PDF) - Holtek Semiconductor
Número de pieza
componentes Descripción
Fabricante
HT23C256
CMOS 32K×8-Bit Mask ROM
Holtek Semiconductor
HT23C256 Datasheet PDF : 8 Pages
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Pin Assignment
HT23C256
Pin Description
Pin Name
A0~A14
D0~D7
CE/CE/OE1/OE1
OE/OE/NC
VSS
VCC
NC
I/O
Description
I Address inputs
O Data outputs
I Chip enable/Output enable input
I Output enable input
I Negative power supply
I Positive power supply
— No connection
Operation Truth Table
Mode
Read
Deselect
Standby
CE/CE
H/L
H/L
L/H
Note: H=V
IH
, L=V
IL
, X=V
IH
or V
IL
OE/OE
H/L
L/H
X
A0~A14
Valid
X
X
D0~D7
Data Out
High Z
High Z
2
24th Aug ’98
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