km4132g271b Samsung Semiconductor, Inc., km4132g271b Datasheet - Page 29

• Manufacturer Part Number: km4132g271b
• Description: 128k X 32bit X 2 Banks Synchronous Graphic Ram Lvttl
• Manufacturer: Samsung Semiconductor, Inc.

CLOCK
KM4132G271B
Single Bit Read-Write-Read Cycle(Same Page) @CAS Latency=3, Burst Length=1
ADDR
DQM
RAS
CAS
DSF
CKE
WE
DQ
CS
A
A
9
8
Row Active
(Write per Bit
0
t
Enable or Disable)
t
t
SH
t
SH
SS
SS
*Note 5
*Note 2
Ra
Ra
BS
1
*Note 1
t
2
RCD
t
CC
t
SS
3
t
t
RAC
SH
t
*Note 2,3
*Note 3
SS
Read
Ca
BS
t
CH
4
t
t
t
CL
t
RAS
SH
t
SLZ
SAC
5
6
t
t
OH
RC
Qa
7
t
t
SHZ
SS
8
Block Write
t
t
SH
t
SH
t
t
*Note 2,3
SH
HIGH
SS
SS
*Note 6
*Note 3
*Note 3
Write
- 29
Cb
BS
Db
or
t
9
SS
t
SS
t
t
SH
CCD
t
SH
10
*Note 2,3
*Note 3
Read
Cc
BS
11
Precharge
*Note 4
*Note 4
BS
12
13
t
RP
Qc
14
Row Active
(Write per Bit
Enable or
Disable)
*Note 5
*Note 2
Rb
BS
Rb
15
Rev. 2.4 (May 1998)
CMOS SGRAM
16
17
18
: Don t care
19