EtronTech
EM6AA160
Table 16. Electrical Characteristics and Recommended A.C.Operating Condition
(VDD = 2.5V ± 0.2V, TA = 0~70 °C)
-4
-5
Symbol
Parameter
Unit Note
Min.
Max.
-
Min.
7.5
6
Max.
12
CL = 2
CL = 2.5
CL = 3
-
-
ns
ns
ns
tCK
tCK
tCK
Clock cycle time
-
12
4
10
5
10
tCH
tCL
Clock high level width
Clock low level width
0.45
0.45
0.55
0.55
0.45
0.45
0.55
0.55
t
CLMIN or
tCHMIN
t
CLMIN or
tCHMIN
tHP
Clock half period
-
-
ns
2
tHZ
tLZ
Data-out-high impedance time from CK,
Data-out-low impedance time from CK,
-
0.7
0.7
0.7
0.7
-
0.7
0.7
0.6
0.7
ns
ns
ns
ns
3
3
CK
CK
-0.7
-0.7
-0.7
-0.7
-0.6
-0.7
tDQSCK DQS-out access time from CK,
CK
tAC
Output access time from CK,
CK
tDQSQ DQS-DQ Skew
-
0.4
-
0.4
ns
tCK
tCK
tCK
ns
tCK
tCK
tCK
tCK
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
tCK
ns
µs
tCK
ns
ns
ns
ns
ns
tCK
tCK
tRPRE
tRPST
Read preamble
Read postamble
0.9
0.4
0.8
0
1.1
0.9
0.4
0.72
0
1.1
0.6
0.6
tDQSS CK to valid DQS-in
1.2
1.25
tWPRES DQS-in setup time
-
-
4
5
tWPRE DQS write preamble
tWPST DQS write postamble
tDQSH DQS in high level pulse width
0.25
0.4
0.35
0.35
0.7
0.7
0.4
0.4
-
0.25
0.4
0.35
0.35
0.7
0.7
0.4
0.4
-
0.6
0.6
-
-
tDQSL
tIS
DQS in low level pulse width
-
-
Address and Control input setup time
Address and Control input hold time
DQ & DM setup time to DQS
DQ & DM hold time to DQS
DQ/DQS output hold time from DQS
Row cycle time
-
-
6
6
tIH
-
-
tDS
-
-
tDH
-
-
tQH
tHP - tQHS
-
tHP - tQHS
55
-
tRC
52
70
-
-
tRFC
tRAS
tRCD
tRP
Refresh row cycle time
-
70
-
Row active time
36
70k
40
70k
Active to Read or Write delay
Row precharge time
16
-
15
-
16
-
15
-
tRRD
tWR
tWTR
tMRD
tREFI
Row active to Row active delay
Write recovery time
8
-
10
-
12
-
15
-
Internal Write to Read Command Delay
Mode register set cycle time
Average Periodic Refresh interval
2
-
2
-
8
-
10
-
-
7.8
-
7.8
7
tXSRD Self refresh exit to read command delay
tXSNR Self refresh exit to non-read command delay
200
75
-
200
75
-
-
-
Auto Precharge write recovery + precharge time
DQ and DM input puls width
tDAL
tDIPW
tIPW
tQHS
tDSS
tDSH
tWR + tRP
1.75
2.2
-
-
tWR + tRP
1.75
2.2
-
-
-
-
-
-
Control and Address input pulse width
Data Hold Skew Factor
0.5
-
0.5
-
DQS falling edge to CK setup time
DQS falling edge hold time from CK
0.2
0.2
0.2
0.2
-
-
Etron Confidential
13
Rev. 1.3
Mar. /2014
ETRON [ ETRON TECHNOLOGY, INC. ]
