Datasheet

t
XSNR
Exit self refresh to non-read command delay
t
RFC
+ 10
-
ns
30
t
XSRD
Exit self refresh to a read command
200 -
t
CK
t
XP
Exit precharge power down to any command
2 -
t
CK
t
XARD
Exit active power down to read command
2 -
t
CK
1
t
XARDS
Exit active power down to read
command(slow exit, lower power)
8 - AL -
t
CK
1, 2
t
AOND
ODT turn-on delay
2 2
t
CK
16
t
AON
ODT turn-on
t
AC(min)
t
AC(max)
+
0.7
ns
6, 16, 38
t
AONPD
ODT turn-on (Power-Down mode)
t
AC(min)
+ 2
2t
CK
+t
AC(max)
+1
ns
t
AOFD
ODT turn-off delay
2.5 2.5
t
CK
17, 42
t
AOF
ODT turn-off
t
AC(min)
t
AC(max)
+
0.6
ns
17, 41, 42
t
AOFPD
ODT turn-off (Power-Down mode)
t
AC(min)
+ 2
2.5 t
CK
+t
AC(max)
+1
ns
t
ANPD
ODT to power down entry latency
3 -
t
CK
t
AXPD
ODT power down exit latency
8 -
t
CK
t
MRD
Mode register set command cycle time
2 -
t
CK
t
MOD
MRS command to ODT update delay
0 12
ns
30
t
OIT
OCD drive mode output delay 0 12
ns
30
t
Delay
Minimum time clocks remains ON after CKE
asynchronously drops LOW
t
IS
+ t
CK
+ t
IH
-
ns
15
t
RFC
Refresh to active/Refresh command time
195 -
ns
43
t
REFI
Average periodic
refresh interval
@ -40
∞
C
≦
TC
≦
+85
∞
C
- 7.8
µs
43
@ +85∞C＜TC≦ +95∞C
- 3.9
µs
43
t
RCD
RAS# to CAS# Delay time
12.5 -
ns
t
RP
Row precharge Delay time
12.5 -
ns
t
RC
Row cycle Delay time
57.5 -
ns
t
RAS
Row active Delay time
45 70K
ns
AS4C128M16D2A-25BCN
AS4C128M16D2A-25BIN
Confidential
- 28/63 -
Rev.1.0 Dec 2015