W632GU6KB Datasheet, PDF (143/160 Pages) Winbond – 16M X 8 BANKS X 16 BIT DDR3L SDRAM

W632GU6KB
AC Timing and Operating Condition for -12/12I/-15/15I speed grades, continued
SYMBOL
SPEED GRADE
PARAMETER
DDR3L-1600
(-12/12I)
MIN.
MAX.
DDR3L-1333
(-15/15I)
MIN.
MAX.
Command and Address Timing
tWR WRITE recovery time
15

15

tMRD Mode Register Set command cycle time
4

4

tMOD Mode Register Set command update delay
max(12nCK,
15nS)

max(12nCK,
15nS)

tCCD CAS# to CAS# command delay
4

4

tDAL(min)
Auto precharge write recovery + precharge
time
WR + roundup(tRP(min)/ tCK(avg))
tMPRR Multi-Purpose Register Recovery Time
1

1

tRRD
ACTIVE to ACTIVE command period for 2KB
page size
max(4nCK,
7.5nS)

max(4nCK,
7.5nS)

tFAW Four activate window for 2KB page size
40

45

tIS(AC160)
Command and Address
setup time to CK, CK#
Base specification
VREF @ 1 V/nS
60
220
80
240
tIS(AC135)
Command and Address
setup time to CK, CK#
Base specification
VREF @ 1 V/nS
185
320
205
340
tIH(DC90)
Command and Address
hold time from CK, CK#
Base specification
VREF @ 1 V/nS
130
220
150
240
tIPW
Control, address and control input pulse width
for each input
560

620

Calibration Timing
tZQinit Power-up and RESET calibration time
max(512nCK,
640nS)

max(512nCK,
640nS)

tZQoper Normal operation Full calibration time
max(256nCK,
320nS)

max(256nCK,
320nS)

tZQCS Normal operation Short calibration time
max(64nCK,
80nS)

max(64nCK,
80nS)

Reset Timing
tXPR
Exit Reset from CKE HIGH to a valid
command
Self Refresh Timing
max(5nCK,
170nS)

max(5nCK,
170nS)

tXS
Exit Self Refresh to commands not requiring a max(5nCK,
locked DLL
170nS)

max(5nCK,
170nS)

tXSDLL
Exit Self Refresh to commands requiring a
locked DLL
tDLLK(min)

tDLLK(min)

tCKESR
Minimum CKE low width for Self Refresh entry
to exit timing
tCKE(min) +
1nCK

tCKE(min) +
1nCK

tCKSRE
Valid Clock Requirement after Self Refresh
Entry (SRE)
max(5 nCK,
10nS)

max(5 nCK,
10nS)

tCKSRX
Valid Clock Requirement before Self Refresh
Exit (SRX)
max(5 nCK,
10nS)

max(5 nCK,
10nS)

Refresh Timing
tRFC REF command to ACT or REF command time
160

160

-40°C ≤ TCASE ≤ 85°C*

7.8

7.8
tREFI
Average periodic
refresh Interval
0°C ≤ TCASE ≤ 85°C

7.8

7.8
85°C < TCASE ≤ 95°C

3.9
3.9
* -40°C ≤ TCASE ≤ 85°C is for 12I and 15I grade only.
UNITS NOTES
nS
8, 26
nCK
nCK
nCK
6
nCK
29
8
nS
8
pS
9, 41
pS 9, 41, 42
pS
9, 41
pS 9, 41, 42
pS
9, 41
pS 9, 41, 42
pS
10
33
34
nCK
35
nS
36
μS
μS
μS
- 143 -
Publication Release Date: Jan. 20, 2015
Revision: A06