Datasheet

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
2 t
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
127.5
- ns
43
t
REFI
Average periodic
refresh interval
@ -40
°
C to +85
°
C
7.8
s
43
@ +85°C to 95°C
3.9
s
43, 44
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
-
-
AS4C64M16D2A-25BIN
AS4C64M16D2A-25BCN
Confidential
- 28 of 62 -
Rev.1.1 October 2017