k4s643232c Samsung Semiconductor, Inc., k4s643232c Datasheet - Page 35

• 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 with Auto Precharge III @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)
Ra
Ra
1
* Any command to A-bank is not allowed in this period.
tRP is determined from at auto precharge start point
2
3
4
Auto Precharge
Read with
(A-Bank)
Ca
5
6
Qa0
7
*
Qa1
Qa0
Auto Precharge
8
Row Active
Start Point
(A-Bank)
(B-Bank)
Qa2
Qa1
Rb
Rb
9
- 35
HIGH
Qa3
Qa2
10
Auto Precharge
Cb
Qa3
Read with
(B-Bank)
11
12
Qb0
13
Qb1
Qb0
Auto Precharge
14
Start Point
(B-Bank)
Qb2
Qb1
15
REV. 1.1 Nov. '99
CMOS SDRAM
Qb3
Qb2
16
Qb3
17
18
: Don't care
19