m470l6524fl0 Samsung Semiconductor, Inc., m470l6524fl0 Datasheet - Page 11

• Manufacturer Part Number: m470l6524fl0
• Description: 200pin Unbuffered Sodimm Based On 512mb F-die
• Manufacturer: Samsung Semiconductor, Inc.

12.0 AC Timming Parameters & Specifications
512MB, 1GB Unbuffered SODIMM
Row cycle time
Refresh row cycle time
Row active time
RAS to CAS delay
Row precharge time
Row active to Row active delay
Write recovery time
Last data in to Read command
Clock cycle time
Clock high level width
Clock low level width
DQS-out access time from CK/CK
Output data access time from CK/CK
Data strobe edge to ouput data edge
Read Preamble
Read Postamble
CK to valid DQS-in
DQS-in setup time
DQS-in hold time
DQS falling edge to CK rising-setup time
DQS falling edge from CK rising-hold time
DQS-in high level width
DQS-in low level width
Address and Control Input setup time(fast)
Address and Control Input hold time(fast)
Address and Control Input setup(slow)
Address and Control Input hold time(slow)
Data-out high impedence time from CK/CK
Data-out low impedence time from CK/CK
Mode register set cycle time
DQ & DM setup time to DQS
DQ & DM hold time to DQS
Control & Address input pulse width
DQ & DM input pulse width
Exit self refresh to non-Read command
Exit self refresh to read command
Refresh interval time
Output DQS valid window
Clock half period
Data hold skew factor
DQS write postamble time
Active to Read with Auto precharge
command
Autoprecharge write recovery +
Precharge time
Parameter
CL=2.5
Symbol
tWPRES
tWPREH
tDQSCK
tDQSQ
tDQSH
tWPST
tRPRE
tDQSS
tDQSL
tXSNR
tXSRD
tRPST
tDIPW
tWTR
tMRD
tREFI
tRCD
tRRD
tDSH
tQHS
tRFC
tRAS
tDSS
tRAP
tDAL
tIPW
tWR
tQH
tRC
tRP
tCK
tCH
tAC
tHZ
tDS
tDH
tHP
tCL
tLZ
tIS
tIH
tIS
tIH
9 of 15
(tWR/tCK)
or tCHmin
(tRP/tCK)
tCLmin
-tQHS
Min
0.45
0.45
0.75
0.25
0.35
0.35
0.75
0.75
0.45
0.45
1.75
-0.6
-0.7
-0.7
-0.7
200
0.9
0.4
0.2
0.8
0.8
2.2
0.4
0.2
tHP
60
72
42
18
18
12
15
12
75
18
1
6
0
+
-
(DDR333@CL=2.5)
B3
Max
0.55
0.55
+0.6
+0.7
0.45
1.25
+0.7
+0.7
0.55
70K
1.1
0.6
7.8
0.6
12
Rev. 1.01 August 2008
-
-
DDR SDRAM
Unit
tCK
tCK
tCK
tCK
tCK
tCK
tCK
tCK
tCK
tCK
tCK
tCK
tCK
tCK
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
us
ns
ns
ns
15, 17~19
15, 17~19
16~19
16~19
20, 21
Note
j, k
j, k
22
13
11
11
18
18
14
21
21
12
23