is42g32256 ETC-unknow, is42g32256 Datasheet - Page 27

• Manufacturer Part Number: is42g32256
• Description: 256k 16-mbit Synchronous Graphics
• Manufacturer: ETC-unknow

IS42G32256
Refreshing H
Abbreviations:
Integrated Silicon Solution, Inc.
ADVANCE INFORMATION SR037-0C
09/10/98
Table 14. Function Truth Table (continued)
Activating
Current
Notes:
1. All entries assume the CKE was active (High) during the preceding clock cycle and the current clock cycle.
2. Illegal to bank in specified state; Function may be legal in the bank indicated by BA, depending on the state of that bank.
3. Must satisfy bus contention, bus turn around, and/or write recovery requirements.
4. NOP to bank precharging or in idle state. May precharge bank indicated by BA (and PA).
5. Illegal if any bank is not idle.
6. Legal only if all banks are in idle or row active state.
State
Row
RA = Row Address (A0-A9)
NOP = No Operation Command
CS CS CS CS CS RAS
H
L
L
L
L
L
L
L
L
L
L
RAS
RAS
RAS CAS
RAS
X
H
H
H
X
H
H
L
L
L
L
L
CAS
CAS
CAS
CAS WE
X
H
H
H
H
X
H
H
L
L
L
L
WE
WE
WE
WE
H
H
X
X
X
X
X
X
X
X
L
L
DSF
X
X
X
X
X
X
X
X
X
X
X
X
(A10)
BA
BA
BA
BA
X
X
X
X
X
X
X
X
X
BA = Bank Address (A10)
CA = Column Address (A0-A7)
CA,AP
ADDR
RA
PA
X
X
X
X
X
X
X
X
X
NOP
NOP
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
NOP
NOP
ILLEGAL
ILLEGAL
ILLEGAL
Action
Row Active after t
Row Active after t
Idle after t
Idle after t
(2)
(2)
(2)
(2)
(2)
RC
RC
PA = Precharge All (A9)
AP = Auto Precharge (A9)
RCD
RCD
ISSI
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