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W9825G6JH
9.5
AC Characteristics and Operating Condition
(V DD = 3.3V ± 0.3V, T A = 0 to 70°C for -5/-6/-6L/-75/75L, T A = -40 to 85°C for -5I/-6I/-6A, T A / T CASE = -40 to 105°C for -6K)
PARAMETER
Ref/Active to Ref/Active Command
Period
SYM.
t RC
-5/-5I
MIN. MAX.
55
MIN.
60
-6
MAX.
-6I/-6A/-6K/-6L
MIN. MAX.
60
-75/75L
MIN. MAX.
65
UNIT NOTES
Active to precharge Command Period
t RAS
40
100000
42
100000
42
100000
45
100000
nS
Active to Read/Write Command Delay
Time
t RCD
15
15
18
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
18
2
1
20
2
t CK
nS
t CK
Write Recovery Time
CL* = 2
CL* = 3
t WR
2
2
2
2
2
2
2
2
t CK
CLK Cycle Time
CL* = 2
CL* = 3
t CK
7.5
5
1000
1000
7.5
6
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
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
5
5.4
5
3
6
5
5.4
5.4
3
6
5
5.4
5.4
3
6
5.4
6
5.4
9
9
7
7
Output Data Low Impedance Time
t LZ
0
0
0
0
9
Power Down Mode Entry Time
t SB
0
6
0
7
0
7
0
7.5
nS
Transition Time of CLK (Rise and Fall)
t T
1
1
1
1
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
t DS
t DH
t AS
t AH
t CKS
t CKH
t CMS
t CMH
1.5
1.0
1.5
1.0
1.5
1.0
1.5
1.0
1.5
0.8
1.5
0.8
1.5
0.8
1.5
0.8
1.5
0.8
1.5
0.8
1.5
0.8
1.5
0.8
1.5
1.0
1.5
1.0
1.5
1.0
1.5
1.0
8
8
8
8
8
8
8
8
Refresh
Time
-4 0°C ≤ T A / T CASE ≤ 85°C
85°C < T A / T CASE ≤ 105°C
t REF
t REFA*
64
--
64
--
64
16
64
--
mS
Mode register Set Cycle Time
Exit self refresh to ACTIVE command
t RSC
t XSR
2
70
2
72
2
72
2
75
t CK
nS
* CL = CAS Latency
* t REFA refresh time spec defined for -6K grade, -5/-5I/-6/-6I/-6A/-6L/-75/75L grades 85°C < T A / T CASE ≤ 105°C is not available.
Publication Release Date: Mar. 13, 2014
- 16 -
Revision: A09
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