k4d263238a-gc50 Samsung Semiconductor, Inc., k4d263238a-gc50 Datasheet - Page 14

• Manufacturer Part Number: k4d263238a-gc50
• Description: 1m X 32bit X 4 Banks Double Data Rate Synchronous Ram With Bi-directional Data Strobe And Dll
• Manufacturer: Samsung Semiconductor, Inc.

AC CHARACTERISTICS
Simplified Timing @ BL=2, CL=4
K4D26323RA-GC
CK cycle time
CK high level width
CK low level width
DQS out access time from CK
Output access time from CK
Data strobe edge to Dout edge
Read preamble
Read postamble
CK to valid DQS-in
DQS-In setup time
DQS-in hold time
DQS write postamble
DQS-In high level width
DQS-In low level width
Address and Control input setup
Address and Control input hold
DQ and DM setup time to DQS
DQ and DM hold time to DQS
Clock half period
Data output hold time from DQS
COMMAND
CK, CK
DQS
DM
DQ
CS
Parameter
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2.86
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x x x x x x x x x x
x x x x x x x x x x
x x x x x x x x x x
x x x x x x x x x x
x x x x x x x x x x
x x x x x x x x x x
x x x x x x x x x x
x x x x x x x x x x
x x x x x x x x x x
0.6
0.6
1.1
0.6
0.6
0.6
0.6
5
5
-
-
-
-
-
-
-
-
tIS
tIH
WRITEB
tCHmin
tCLmin
0.45
0.45
0.85
0.35
0.40
0.40
tHP-
Min
-0.6
-0.6
3.6
0.9
0.4
0.4
0.4
0.4
0.9
0.9
0.4
128M DDR SDRAM
or
6
0
-
-
t
WPRES
-36
tDQSS
Rev. 2.0 (Jan. 2003)
t
WPREH
Max
0.55
0.55
0.40
1.15
0.6
0.6
1.1
0.6
0.6
0.6
0.6
7
5
tDS tDH
-
-
-
-
-
-
-
-
Db0
tDQSH
Db1
Unit Note
tCK
tCK
tCK
tCK
tCK
tCK
tCK
tCK
tCK
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
tDQSL
8
1
1
1