Table 11: AC Operating Specifications and Conditions (Continued)
Not all speed grades listed may be supported for this device; refer to the title page for speeds supported; Notes: 1–5 apply to the entire table;
VDDQ = +1.8V ±0.1V, VDD = +1.8V ±0.1V
AC Characteristics
-187E
-25E
-25
-3E
-3
-37E
-5E
Parameter
Symbol Min Max Min Max Min Max Min Max Min Max Min Max Min Max Units Notes
Exit SELF REFRESH
to nonREAD
command
tXSNR
MIN limit = tRFC (MIN) + 10
MAX limit = n/a
ns
Exit SELF REFRESH
to READ command
tXSRD
tISXR
MIN limit = 200
MAX limit = n/a
MIN limit = tIS
tCK
ps
18
33, 43
18
Exit SELF REFRESH
timing reference
Exit active MR12 tXARD
MAX limit = n/a
3
2
2
2
2
2
2
tCK
tCK
–
–
–
–
–
–
–
–
–
–
–
–
–
power-
down to
READ
= 0
MR12
= 1
10 - AL
8 - AL
8 - AL
7 - AL
7 - AL
6 - AL
6 - AL
18
–
command
Exit precharge
power-down and
active power-down
to any
tXP
3
2
2
2
2
2
2
tCK
18
–
–
–
–
–
–
–
nonREAD
command
CKE MIN HIGH/
LOW time
tCKE
MIN = 3
MAX = n/a
tCK 18, 44
MICRON [ MICRON TECHNOLOGY ]
