EtronTech
EM68C08CWAE
25
30
tCKE
CKE minimum pulse width
Exit self refresh to non-read command
delay
Exit self refresh to a read command
Exit precharge power down to any
command
Exit active power down to read command
Exit active power down to read
command(slow exit, lower power)
3
tRFC+10
200
3
-
-
-
-
-
-
3
tRFC+10
200
2
-
-
3
tRFC+10
200
2
-
-
tCK
ns
tXSNR
tXSRD
tXP
-
-
tCK
tCK
tCK
tCK
tCK
ns
-
-
1
1, 2
tXARD
tXARDS
tAOND
tAON
2
2
-
2
-
10-AL
2
8-AL
2
-
7-AL
2
-
16
ODT turn-on delay
2
2
2
t
AC(max)
+2.575
t
t
AC(max)
+0.7
t
t
AC(max)
+0.7
6, 16, 38
ODT turn-on
t
t
AC(min)
t
t
AC(min)
t
t
AC(min)
3 tCK
AC(max)
+1
+
2 tCK
AC(max)
+1
+
2 tCK +
AC(max) ns
+1
AC(min)
+2
AC(min)
+2
AC(min)
+2
tAONPD
ODT turn-on (Power-Down mode)
t
t
17, 42
tAOFD
tAOF
ODT turn-off delay
ODT turn-off
2.5
2.5
2.5
2.5
2.5
2.5
tCK
AC(max)
+0.6
t
AC(max)
+0.6
t
AC(max)
+0.6
17, 41, 42
tAC(min)
tAC(min)
tAC(min)
ns
2.5 tCK
+
2.5 tCK
+
2.5 tCK +
t
AC(min)
+2
tAC(min)
+2
tAC(min)
+2
tAOFPD
ODT turn-off (Power-Down mode)
t
AC(max)
t
AC(max)
t
AC(max) ns
+1
+1
+1
tANPD
tAXPD
tMRD
tMOD
tOIT
ODT to power down entry latency
ODT power down exit latency
4
11
2
-
3
8
2
0
0
-
3
8
2
0
0
-
-
tCK
tCK
tCK
ns
ns
-
-
Mode register set command cycle time
MRS command to ODT update delay
OCD drive mode output delay
-
-
-
30
30
0
12
12
12
12
12
12
0
Minimum time clocks remains ON after
CKE asynchronously drops LOW
tIS+ tCK
+tIH
tIS+ tCK
+tIH
tIS+ tCK
+tIH
15
tDelay
tRFC
-
-
-
ns
ns
43
43
Refresh to active/Refresh command time
127.5
-
-
127.5
-
-
127.5
-
-
@ 0 C to +85 C
°
°
7.8
7.8
7.8
Average periodic
refresh interval
tREFI
µs
43,44
@ +85°C to 95°C
-
3.9
-
3.9
-
3.9
tRCD
tRP
RAS# to CAS# Delay time
Row precharge Delay time
Row cycle Delay time
13.125
13.125
58.125
45
-
12.5
12.5
57.5
45
-
15
15
60
45
-
ns
ns
ns
ns
-
-
-
-
-
-
tRC
tRAS
Row active Delay time
70K
70K
70K
Rev. 1.3
28
Oct. /2015
ETRON [ ETRON TECHNOLOGY, INC. ]
