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W9812G6JH
9.5
AC Characteristics and Operating Condition
(VDD = 3.3V ± 0.3V, T A = 0 to 70°C for -5/-6/-75, T A = -40 to 85°C for -6I/-6A, T A / T CASE = -40 to 105°C for -6K)
PARAMETER
SYM.
MIN.
-5
MAX.
-6/-6I/-6A/-6K
MIN. MAX.
MIN.
-75
MAX.
UNIT
NOTES
Ref/Active to Ref/Active Command
Period
t RC
55
60
65
Active to precharge Command Period
t RAS
40
100000
42
100000
45
100000
nS
Active to Read/Write Command Delay
Time
t RCD
15
15
20
Read/Write(a) to Read/Write(b)
Command Period
Precharge to Active Command Period
Active(a) to Active(b) Command Period
t CCD
t RP
t RRD
1
15
2
1
15
2
1
20
2
t CK
nS
t CK
Write Recovery Time
CL* = 2
CL* = 3
t WR
2
2
2
2
2
2
t CK
CLK Cycle Time
CL* = 2
CL* = 3
t CK
10
5
1000
1000
7.5
6
1000
1000
10
7.5
1000
1000
CLK High Level width
CLK Low Level width
t CH
t CL
2
2
2
2
2.5
2.5
8
8
Access Time from CLK
Output Data Hold Time
Output Data High
Impedance Time
CL* = 2
CL* = 3
CL* = 2
CL* = 3
t AC
t OH
t HZ
3
6
4.5
6
4.5
3
6
5
6
5
3
6
5.4
6
5.4
9
9
7
Output Data Low Impedance Time
t LZ
0
0
0
9
Power Down Mode Entry Time
t SB
0
5
0
6
0
7.5
nS
Transition Time of CLK (Rise and Fall)
t T
1
1
1
85°C < T A / T CASE ≤ 105°C
Data-in Set-up Time
Data-in Hold Time
Address Set-up Time
Address Hold Time
CKE Set-up Time
CKE Hold Time
Command Set-up Time
Command Hold Time
Refresh -4 0°C ≤ T A / T CASE ≤ 85°C
Time
Mode register Set Cycle Time
Exit self refresh to ACTIVE command
t DS
t DH
t AS
t AH
t CKS
t CKH
t CMS
t CMH
t REF
t REFA*
t RSC
t XSR
1.5
0.8
1.5
0.8
1.5
0.8
1.5
0.8
2
70
64
--
1.5
0.8
1.5
0.8
1.5
0.8
1.5
0.8
2
72
64
16
1.5
0.8
1.5
0.8
1.5
0.8
1.5
0.8
2
75
64
--
mS
t CK
nS
8
8
8
8
8
8
8
8
* CL = CAS Latency
* t REFA refresh time spec defined for -6K grade, -5/-6/-6I/-6A/-75 grades 85°C < T A / T CASE ≤ 105°C is not available.
Publication Release Date: Jun. 25, 2013
- 15 -
Revision A06
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