KM4132G271A Datasheet, PDF (28/48 Pages) Samsung semiconductor – 128K x 32Bit x 2 Banks Synchronous Graphic RAM

KM4132G271A
CMOS SGRAM
Single Bit Read-Write-Read Cycle(Same Page) @CAS Latency=3, Burst Length=1
CLOCK
CKE
CS
RAS
CAS
tCH
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
tCC
*Note 1
tCL
tRAS
tRC
HIGH
tSH
tRCD
tSH
tSS
tRP
tSS
tSH
tCCD
ADDR
A9
tSH
Ra
tSS
*Note 2
BS
tSS
Ca
*Note 2,3
BS
tSS
Cb
tSH
*Note 2,3
BS
Cc
*Note 2,3 *Note 4
BS BS
Rb
*Note 2
BS
A8
Ra
WE
DSF
*Note 5
DQM
DQ
*Note 3
*Note 3
*Note 3 *Note 4
tSH
tSS
tSH
tSS
*Note 6
*Note 3
tSS
tSH
tRAC
tSAC
tSLZ
Qa
tOH
tSH
Db
tSS
tSHZ
Rb
*Note 5
Qc
Row Active
(Write per Bit
Enable or Disable)
Read
Write
or
Block Write
Read
Precharge
Row Active
(Write per Bit
Enable or
Disable)
: Don't care
Rev.0 (August 1997)