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V53C16258H View Datasheet(PDF) - Mosel Vitelic Corporation

Part NameDescriptionManufacturer
V53C16258H HIGH PERFORMANCE 256K X 16 EDO PAGE MODE CMOS DYNAMIC RAM OPTIONAL SELF REFRESH Mosel-Vitelic
Mosel Vitelic Corporation  Mosel-Vitelic
V53C16258H Datasheet PDF : 20 Pages
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MOSEL VITELIC
V53C16258H
Truth Table
Function
Standby
Read: Word
Read: Lower Byte
RAS LCAS UCAS WE
H
H
H
X
L
L
L
H
L
L
H
H
Read: Upper Byte
L
H
L
H
Write: Word (Early-Write)
Write: Lower Byte (Early)
L
L
L
L
L
L
H
L
Read: Upper Byte (Early)
L
H
L
L
Read-Write
L
L
L
HL
EDO Page-Mode Read
L
HL HL
H
EDO Page-Mode Write
L
HL HL
L
EDO Page-Mode Read-Write L
HL HL HL
Hidden Refresh Read
LHL L
L
H
RAS-Only Refresh
L
H
H
X
CBR Refresh
HL
L
L
X
Self Refresh
HL
L
H
X
Notes:
1. Byte Write cycles LCAS or UCAS active.
2. Byte Read cycles LCAS or UCAS active.
3. Only one of the two CAS must be active (LCAS or UCAS).
OE
X
L
L
L
X
X
X
LH
L
X
LH
L
X
X
X
ADDRESS I/O
X
High-Z
ROW/COL Data Out
ROW/COL Lower Byte, Data-Out
Upper Byte, High-Z
ROW/COL Lower Byte, High-Z
Upper Byte, Data-Out
ROW/COL Data-In
ROW/COL Lower Byte, Data-In
Upper Byte, High-Z
ROW/COL Lower Byte, High-Z
Upper Byte, Data-In
ROW/COL Data-Out, Data-In
COL
Data-Out
COL
Data-In
COL
Data-Out, Data-In
ROW/COL Data-Out
ROW
High-Z
X
High-Z
X
High-Z
Notes
1, 2
2
2
1, 2
2
3
V53C16258H Rev. 3.8 November 1999
8
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