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CG6257AM Datasheet(PDF) 10 Page - Weida Semiconductor, Inc.

Part # CG6257AM
Description  4Mb (256K x 16) Pseudo Static RAM
Download  12 Pages
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Manufacturer  WEIDA [Weida Semiconductor, Inc.]
Direct Link  http://www.weida.com.my/website/
Logo WEIDA - Weida Semiconductor, Inc.

CG6257AM Datasheet(HTML) 10 Page - Weida Semiconductor, Inc.

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PRELIMINARY
CG6257AM
38-XXXXX
Page - 10 - of 12
Truth Table[20]
CE
WE
OE
BHE
BLE
Inputs/Outputs
Mode
Power
H
X
X
X
X
High Z
Deselect/Power-Down
Standby (ISB)
X
X
X
H
H
High Z
Deselect/Power-Down
Standby (ISB)
L
H
L
L
L
Data Out (I/O0 – I/O15)
Read
Active (ICC)
L
H
L
H
L
Data Out (I/O0 – I/O7);
High Z (I/O8 – I/O15)
Read
Active (ICC)
L
H
L
L
H
High Z (I/O0 – I/O7);
Data Out (I/O8 – I/O15)
Read
Active (ICC)
L
H
H
L
H
High Z
Output Disabled
Active (ICC)
L
H
H
H
L
High Z
Output Disabled
Active (ICC)
L
H
H
L
L
High Z
Output Disabled
Active (ICC)
L
L
X
L
L
Data In (I/O0 – I/O15)
Write
Active (ICC)
L
L
X
H
L
Data In (I/O0 – I/O7);
High Z (I/O8 – I/O15)
Write
Active (ICC)
L
L
X
L
H
High Z (I/O0 – I/O7);
Data In (I/O8 – I/O15)
Write
Active (ICC)
Note:
20. H = VIH, L = VIL, X = Don’t Care
Ordering Information
Speed
(ns)
Ordering Code
Package
Name
Package Type
Operating
Range
70
CG6257AM
BA48K
48-ball Fine Pitch BGA (6 mm × 8mm × 1.2 mm)
Industrial


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