is42g32256 ETC-unknow, is42g32256 Datasheet - Page 34

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

IS42G32256
34
A0-A8
DQM
CKE
RAS
CAS
DSF
CLK
A10
WE
DQ
CS
A9
Figure 19. Single Bit Read-Write-Read Cycle (Same Page) at
(WRITE PER BIT
NOTE 2
ROW ACTIVE
NOTE 5
t
t
0
HIGH
ENABLE OR
SH
SH
DISABLE)
Ra
BS
Ra
NOTE 1
1
t
t
SS
SS
2
t
t
RCD
CC
t
t
CH
t
NOTE 3
3
t
SH
SH
RAC
READ
Ca
BS
4
t
t
SS
SS
t
t
5
SAC
SLZ
t
CL
6
t
RAS
Qa
7
t
SS
NOTE 6
t
t
t
t
NOTE 3
NOTE 3
8
t
SH
CCD
SH
SH
t
SH
WRITE OR
RC
BLOCK
WRITE
Cb
BS
Db
9
t
t
t
t
SS
SS
SS
SS
10
t
NOTE 3 NOTE 4
NOTE 3 NOTE 4
SH
READ
BS
Cb
11
PRECHARGE
BS
12
CAS
CAS
CAS
CAS
CAS
13
Latency = 3, Burst Length = 1
t
RP
Qc
14
NOTE 5
ROW ACTIVE
OR DISABLE)
NOTE 2
(WRITE PER
BIT ENABLE
Integrated Silicon Solution, Inc.
BS
Rb
Rb
15
ADVANCE INFORMATION SR037-0C
16
17
18
: DON’T CARE
ISSI
19
09/10/98
®