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HT23C256 Datasheet(PDF) 2 Page - Holtek Semiconductor Inc

No. de pieza HT23C256
Descripción Electrónicos  CMOS 32Kx 8-Bit Mask ROM
PDF  8 Pages
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Fabricante Electrónico  HOLTEK [Holtek Semiconductor Inc]
Página de inicio  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT23C256 Datasheet(HTML) 2 Page - Holtek Semiconductor Inc

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Pin Assignment
Pin Description
Pin Name
I/O
Description
A0~A14
I
Address inputs
D0~D7
O
Data outputs
CE/CE/OE1/OE1
I
Chip enable/Output enable input
OE/OE/NC
I
Output enable input
VSS
I
Negative power supply
VCC
I
Positive power supply
NC
—
No connection
Operation Truth Table
Mode
CE/CE
OE/OE
A0~A14
D0~D7
Read
H/L
H/L
Valid
Data Out
Deselect
H/L
L/H
X
High Z
Standby
L/H
X
X
High Z
Note: H=VIH, L=VIL, X=VIH or VIL
HT23C256
2
24th Aug ’98



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