GLT40516-10E
Function Table
Input Pin
RAS
LCAS
UCAS
WE
OE
H
–
–
–
–
L
H
H
–
–
L
L
H
H
L
L
H
L
H
L
L
L
L
H
L
L
L
H
L
H
L
H
L
L
H
L
L
L
L
H
L
L
L
H
H
DQ[7:0]
High-Z
High-Z
DOUT
High-Z
DOUT
DIN
Don’t Care
DIN
High-Z
DQ Pin
DQ[15:8]
High-Z
High-Z
High-Z
DOUT
DOUT
Don’t Care
DIN
DIN
High Z
Functional Mode
Standby
Refresh
Lower Byte Read
Upper Byte Read
Word Read
Lower Byte Write
Upper Byte Write
Word Write
–
Truth Table
Function
Standby
Read
Write (Early)
Write DI[7:0]
Write DI[15:8]
Write DI[23:16]
Write DI[31:24]
Read-Write
Page-Mode Read (First Cycle)
Page-Mode Read (Subsequent Cycles)
Page-Mode Write (First Cycle)
Page-Mode Write (Subsequent Cycle)
Page-Mode R-W (First Cycle)
Page-Mode R-W (Subsequent Cycle)
CBR Refresh
RAS-only Refresh
RAS
H
L
L
L
L
L
L
L
L
L
L
L
L
H→L
L
CAS
H
L
L
L
L
L
L
L
H→L
H→L
H→L
H→L
H→L
H→L
L
H
WE
X
H
L
L
L
L
L
H→L
H
H
L
L
H→L
H→L
X
X
OE
X
L
X
X
X
X
X
L→H
L
L
X
X
L→H
L→H
X
X
Address
X
Row/Col
Row/Col
Row/Col
Row/Col
Row/Col
Row/Col
Row/Col
Row/Col
Col
Row/Col
Col
Row/Col
Col
X
Row
DQM0
X
X
H
L
H
H
H
H
X
X
H
H
H
H
X
X
DQM1
X
X
H
H
L
H
H
H
X
X
H
H
H
H
X
X
DQM2
X
X
H
H
H
L
H
H
X
X
H
H
H
H
X
X
DQM3
X
X
H
H
H
H
L
H
X
X
H
H
H
H
X
X
DI[31:0]
X
X
Data In
Data In
Data In
Data In
Data In
Data In
X
X
Data In
Data In
Data In
Data In
X
X
DO[31:0]
High-Z
Data Out
High-Z
High-Z
High-Z
High-Z
High-Z
Data Out
Data Out
Data Out
High-Z
High-Z
Data Out
Data Out
High-Z
High-Z
G-LINK Technology
3
May 1997 (Rev. 1)