W972GG6JB Datasheet, PDF (44/87 Pages) Winbond – 16M  8 BANKS  16 BIT DDR2 SDRAM

W972GG6JB
AC Characteristics and Operating Condition for -18 speed grade, continued
Notes: 1-3 and 45-47 apply to the entire table
SYM.
tWPRE
tWPST
tRPRE
tRPST
SPEED GRADE
Bin(CL-tRCD-tRP)
PARAMETER
Write preamble
Write postamble
Read preamble
Read postamble
tDS(base) DQ and DM input setup time
tDH(base) DQ and DM input hold time
tDS(ref) DQ and DM input setup time
tDH(ref)
tDIPW
tHZ
DQ and DM input hold time
DQ and DM input pulse width for each input
Data-out high-impedance time from CLK/ CLK
DDR2-1066 (-18)
7-7-7
MIN.
MAX.
0.35

0.4
0.6
0.9
1.1
0.4
0.6
0

75

200

200
0.35



tAC,max
UNITS²⁵ NOTES
tCK(avg)
tCK(avg)
12
tCK(avg) 14,36
tCK(avg) 14,37
pS
16,27,29,
41,42,44
pS
17,27,29,
41,42,44
pS
16,27,29,
41,42,44
pS
17,27,29,
41,42,44
tCK(avg)
pS
15,35
tLZ(DQS) _{DQS/ DQS -low-impedance time from CLK/ CLK}
tAC,min
tAC,max
pS
15,35
tLZ(DQ) _{DQ low-impedance time from CLK/ CLK}
tHP
Clock half pulse width
tQHS
tQH
tXSNR
tXSRD
tXP
tXARD
tXARDS
tAOND
tAON
Data hold skew factor
DQ/DQS output hold time from DQS
Exit Self Refresh to a non-Read command
Exit Self Refresh to a Read command
Exit precharge power down to any command
Exit active power down to Read command
Exit active power down to Read command
(slow exit, lower power)
ODT turn-on delay
ODT turn-on
tAONPD ODT turn-on (Power Down mode)
tAOFD
tAOF
ODT turn-off delay
ODT turn-off
tAOFPD ODT turn-off (Power Down mode)
tANPD
tAXPD
tMRD
tMOD
tOIT
tDELAY
ODT to power down Entry Latency
ODT Power Down Exit Latency
Mode Register Set command cycle time
MRS command to ODT update delay
OCD Drive mode output delay
Minimum time clocks remain ON after CKE
asynchronously drops LOW
2 x tAC,min
Min. (tCH(abs),
tCL(abs))

tHP - tQHS
tRFC + 10
200
3
3
tAC,max

250





10 - AL

2
tAC,min
tAC,min + 2
2.5
tAC,min
tAC,min + 2
4
11
2
0
0
2
tAC,max + 2.575
3 x tCK(avg) +
tAC,max+1
2.5
tAC,max + 0.6
2.5 x tCK(avg) +
tAC,max + 1


12
12
tIS+tCK(avg)+tIH

pS
15,35
pS
32
pS
33
pS
34
nS
23
nCK
nCK
nCK
18
nCK
18,19
nCK
20
nS
20,35
nS
nCK
21,39
nS 21,38,39
nS
nCK
nCK
nCK
nS
23
nS
23
nS
22
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Publication Release Date: Nov. 29, 2011
Revision A02