K4S161622D-TC/L55 SAMSUNG [Samsung semiconductor], K4S161622D-TC/L55 Datasheet - Page 36
K4S161622D-TC/L55
Manufacturer Part Number
K4S161622D-TC/L55
Description
512K x 16Bit x 2 Banks Synchronous DRAM
Manufacturer
SAMSUNG [Samsung semiconductor]
Datasheet
1.K4S161622D-TCL55.pdf
(41 pages)
- Current page: 36 of 41
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CLOCK
K4S161622D
Write Interrupted by Precharge Command & Write Burst Stop Cycle @ Burst Length=Full page
A
ADDR
10
DQM
CKE
RAS
CAS
WE
/AP
DQ
CS
BA
*Note : 1. At full page mode, burst is wrap-around at the end of burst. So auto precharge is impossible.
0
Row Active
(A-Bank)
RAa
RAa
1
2. Data-in at the cycle of interrupted by precharge can not be written into the corresponding
3. Burst stop is valid at every burst length.
memory cell. It is defined by AC parameter of t
DQM at write interrupted by precharge command is needed to prevent invalid write.
DQM should mask invalid input data on precharge command cycle when asserting precharge
before end of burst. Input data after Row precharge cycle will be masked internally.
2
3
(A-Bank)
Write
CAa
DAa0 DAa1 DAa2 DAa3 DAa4
4
5
6
7
8
Burst Stop
RDL.
tBDL
9
HIGH
10
(A-Bank)
Write
CAb
DAb0 DAb1 DAb2 DAb3 DAb4
11
12
13
14
15
DAb5
CMOS SDRAM
16
*Note 2
Precharge
(A-Bank)
tRDL
17
18
: Don't care
19
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