W632GU6NB
Publication Release Date: Aug. 20, 2018
Revision: A01
- 145 -
AC Timing and Operating Condition for -12/12I/12J/-15/15I/15J speed grades, continued
SYMBOL
SPEED GRADE
DDR3L-1600
(-12/12I/12J)
DDR3L-1333
(-15/15I/15J)
UNITS NOTES
PARAMETER
MIN.
MAX.
MIN.
MAX.
Command and Address Timing
t
WR
WRITE recovery time
15
15
nS
8, 26
t
MRD
Mode Register Set command cycle time
4
4
nCK
t
MOD
Mode Register Set command update delay
max(12nCK,
15nS)
max(12nCK,
15nS)
t
CCD
CAS# to CAS# command delay
4
4
nCK
t
DAL
(min)
Auto precharge write re precharge
time
WR + roundup(t
RP
(min)/ t
CK
(avg))
nCK
6
t
MPRR
Multi-Purpose Register Recovery Time
1
1
nCK
29
t
RRD
ACTIVE to ACTIVE command period for 2KB
page size
max(4nCK,
7.5nS)
max(4nCK,
7.5nS)
8
t
FAW
Four activate window for 2KB page size
40
45
nS
8
t
IS(AC160)
Command and Address
setup time to CK, CK#
Base specification
60
80
pS
9, 41
V
REF
@ 1 V/nS
220
240
pS
9, 41, 42
t
IS(AC135)
Command and Address
setup time to CK, CK#
Base specification
185
205
pS
9, 41
V
REF
@ 1 V/nS
320
340
pS
9, 41, 42
t
IH(DC90)
Command and Address
hold time from CK, CK#
Base specification
130
150
pS
9, 41
V
REF
@ 1 V/nS
220
240
pS
9, 41, 42
t
IPW
Control, address and control input pulse width
for each input
560
620
pS
10
Calibration Timing
t
ZQ
init
Power-up and RESET calibration time
max(512nCK,
640nS)
max(512nCK,
640nS)
t
ZQ
oper
Normal operation Full calibration time
max(256nCK,
320nS)
max(256nCK,
320nS)
t
ZQCS
Normal operation Short calibration time
max(64nCK,
80nS)
max(64nCK,
80nS)
33
Reset Timing
t
XPR
Exit Reset from CKE HIGH to a valid
command
max(5nCK,
170nS)
max(5nCK,
170nS)
Self Refresh Timing
t
XS
Exit Self Refresh to commands not requiring a
locked DLL
max(5nCK,
170nS)
max(5nCK,
170nS)
34
t
XSDLL
Exit Self Refresh to commands requiring a
locked DLL
t
DLLK
(min)
t
DLLK
(min)
nCK
35
t
CKESR
Minimum CKE low width for Self Refresh entry
to exit timing
t
CKE
(min) +
1nCK
t
CKE
(min) +
1nCK
t
CKSRE
Valid Clock Requirement after Self Refresh
Entry (SRE)
max(5 nCK,
10nS)
max(5 nCK,
10nS)
t
CKSRX
Valid Clock Requirement before Self Refresh
Exit (SRX)
max(5 nCK,
10nS)
max(5 nCK,
10nS)
Refresh Timing
t
RFC
REF command to ACT or REF command time
160
160
nS
36
t
REFI
Average periodic
refresh Interval
-40°C
≤ T
CASE
≤ 85°C*
7.8
7.8
μS
0°C
≤ T
CASE
≤ 85°C
7.8
7.8
μS
85°C < T
CASE
≤ 95°C
3.9
3.9
μS
95°C < T
CASE
≤ 105°C*
3.9
3.9
μS
* -40°C
≤ T
CASE
≤ 85°C is for 12I, 12J, 15I and 15J grade parts only. 95°C ≤ T
CASE
≤ 105°C is for 12J and 15J grade parts only
