A416316B Series
Truth Table
Function
Address
L
I/Os
Notes
RAS
H
LCAS
WE
L
OE
L
UCAS
Standby
H
L
H
L
L
L
Read: Word
Read: Lower Byte
L
H
L
Row/Col.
Row/Col.
Data Out
L
H
H
L
I/O0-7 = Data Out
I/O8-15 = High-Z
Read: Upper Byte
L
L
H
H
L
Row/Col.
I/O0-7 = High-Z
I/O8-15 = Data Out
Write: Word(Early)
L
L
L
L
L
L
L
X
X
Row/Col.
Row/Col.
Data In
I/O0-7 = Data In
I/O8-15 = X
Write: Lower Byte(Early)
H
Write: Upper Byte(Early)
Read-Write
L
L
L
L
H
L
L
X
Row/Col.
Row/Col.
I/O0-7 = X
I/O8-15 = Data In
1.2
H® L
L® H
Data Out ® Data In
Fast-Page-Mode Read: Hi-Z
-First cycle
L
L
H
H
Row/Col.
Col.
Data Out
Data Out
2
2
H® L
H® L
H® L
H® L
H® L
H® L
-Subsequent Cycles
Fast-Page-Mode Write(Early)
-First cycle
L
L
L
L
X
X
Row/Col.
Col.
Data In
Data In
1
1
H® L
H® L
H® L
H® L
-Subsequent Cycles
Fast-Page-Mode Read-Write
-First cycle
L
L
Row/Col.
Col.
Data In
Data In
1, 2
1, 2
H® L
H® L
L
H® L
H® L
L
H® L
H® L
H
L® H
L® H
L
-Subsequent Cycles
Hidden Refresh Read
Hidden Refresh Write
Row/Col.
Row/Col.
Row
Data Out
2
1
L® H® L
L® H® L
L
L
L
L
X
Data In ® High-Z
H
H
X
X
High-Z
RAS -Only Refresh
CBR Refresh
L
L
L
L
X
X
X
X
X
High-Z
High-Z
3
H® L
H® L
Self Refresh (L-ver only)
X
Note:
1. Byte Write may be executed with either
2. Byte Read may be executed with either
or
active.
active.
UCAS
LCAS
or
UCAS LCAS
3. Only one
signal (
or
UCAS LCAS
) must be active.
CAS
PRELIMINARY (November, 2000, Version 0.0)
4
AMIC Technology, Inc.
AMICC [ AMIC TECHNOLOGY ]
