K4S643232C Datasheet, PDF (25/43 Pages) Samsung semiconductor – 2M x 32 SDRAM 512K x 32bit x 4 Banks Synchronous DRAM LVTTL

K4S643232C
CMOS SDRAM
Single Bit Read-Write-Read Cycle(Same Page) @CAS Latency=3, Burst Length=1
CLOCK
CKE
CS
RAS
CAS
tCH
0 1 23 45 67
tCC
*Note 1
tCL
tRAS
tRC
tRCD
tSH
tSS
tSH
8 9 10 11 12 13 14 15 16 17 18 19
HIGH
tSH
tRP
tSS
tCCD
ADDR
tSH
Ra
tSS
Ca
Cb
Cc
Rb
BA0 ~ BA1
tSS
*Note 2
BS
*Note 2,3
BS
*Note 2,3
BS
*Note 2,3 *Note 4
BS BS
*Note 2
BS
A10/AP
Ra
DQ
WE
DQM
*Note 3
tRAC
tSAC
tSLZ
*Note 3
*Note 3 *Note 4
Qa
tOH
tSH
Db
tSS
tSH
tSS
tSS
tSH
Rb
Qc
Row Active
Read
Write
Read
Precharge
Row Active
: Don't care
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REV. 1.1 Nov. '99