W989D6CB Datasheet, PDF (11/67 Pages) Winbond – 512Mb Mobile LPSDR

W989D6CB / W989D2CB
6.6 AC Characteristics And AC Operating Conditions
6.6.1 AC Characteristics
*CL= CAS Latency; (Notes: 5,6,7)
PARAMETER
SYM
Ref/Active to Ref/Active
Command Period
Active to precharge
Command Period
Active to Read/Write
Command Delay Time
Read/Write(a) to
Read/Write(b)Command
Period
Precharge to Active
Command Period
Active(a) to Active(b)
Command Period
Write Recovery Time
Write-Recovery Time
(Last data to Read)
CLK Cycle Time
CL * = 3
CL * = 2
CLK High Level width
CLK Low Level width
Access Time from CLK CL * = 3
CL * = 2
Output Data Hold Time
Output Data High
Impedance Time
CL * = 3
CL * = 2
Output Data Low
Impedance Time
Power Down Mode
Entry Time
Transition Time of CLK
(Rise and Fall)
Data-in Set-up Time
Data-in Hold Time
Address Set-up Time
Address Hold Time
tRC
tRAS
tRCD
tCCD
tRP
tRRD
tWR
tLDR
tCK
tCH
tCL
tAC
tOH
tHZ
tLZ
tSB
tT
tDS
tDH
tAS
tAH
-6
MIN. MAX.
60
42 100000
18
1
18
12
15
1
6
1000
12
1000
2
2
5.4
6
2.5
5.4
6
1
0
6
0.3
1.2
1.5
1
1.5
1
512Mb Mobile LPSDR
-75
MIN. MAX.
72.5
-
UNIT
ns
NOTE
8
50
100000
ns
8
18
-
ns
8
1
-
CLK
8
18
-
ns
8
15
-
ns
8
15
-
ns
1
CLK
7.5
1000
ns
12
1000
ns
2.5
-
ns
2.5
-
ns
-
5.4
ns
-
8
ns
2.5
-
ns
-
5.4
ns
7
-
6
ns
7
1
-
ns
0
7.5
ns
0.3
1.2
ns
1.5
-
ns
1
-
ns
1.5
-
ns
1
-
ns
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Publication Release Date: Sep, 22, 2011
Revision A01-005