k4s643232c Samsung Semiconductor, Inc., k4s643232c Datasheet - Page 32

• Manufacturer Part Number: k4s643232c
• Description: 2m X 32 Sdram 512k X 32bit X 4 Banks Synchronous Dram Lvttl
• Manufacturer: Samsung Semiconductor, Inc.

DQ
CLOCK
K4S643232C
Read & Write Cycle at Different Bank @Burst Length=4
A
ADDR
DQM
10
CKE
RAS
CAS
BA
BA
/AP
WE
CS
CL=2
CL=3
0
1
*Note :
0
Row Active
(A-Bank)
RAa
RAa
1
1. t
CDL
2
should be met to complete write.
(A-Bank)
Read
CAa
3
4
QAa0 QAa1 QAa2 QAa3
5
Row Active
(D-Bank)
QAa0 QAa1 QAa2 QAa3
RDb
RBb
6
Precharge
(A-Bank)
7
8
9
- 32
HIGH
10
11
(D-Bank)
Write
DDb0 DDb1 DDb2 DDb3
DDb0 DDb1 DDb2 DDb3
CDb RBc
12
Precharge
(B-Bank)
RAc
13
14
15
tCDL
(B-Bank)
Read
REV. 1.1 Nov. '99
CBc
CMOS SDRAM
16
*Note 1
17
QBc0
18
: Don't care
QBc1 QBc2
QBc0
19
QBc1