HYB18T1G400AF Datasheet, PDF (77/89 Pages) Infineon Technologies AG – 1 Gbit DDR2 SDRAM

HYB18T1G400/800/160AF
1Gb DDR2 SDRAM
7.2 Timing Parameter by Speed Grade - DDR2-667
(VDDQ = 1.8V ± 0.1V; VDD = 1.8V ± 0.1V) (notes 1-4)
Symbol
Parameter
-3S
DDR2-667-555
min.
max
tAC DQ output access time from CK / CK
tDQSCK DQS output access time from CK / CK
tCH CK, CK high-level width
tCL CK, CK low-level width
tHP Clock half period
CL = 3
-450
+450
-400
+400
0.45
0.55
0.45
0.55
min. (tCL, tCH)
5000
8000
tCK Clock cycle time
CL = 4
CL = 5
5000
3000
8000
8000
tIS Address and control input setup time
150
tIH Address and control input hold time
275
tDS DQ and DM input setup time
50
tDH DQ and DM input hold time
175
tIPW Address and control input pulse width (each input)
0.6
tDIPW DQ and DM input pulse width (each input)
0.35
tHZ Data-out high-impedance time from CK / CK
-
tLZ_(DQ) DQ low-impedance time from CK / CK
2*tACmin
tLZ_(DQS) DQS low-impedance from CK / CK
tACmin
tDQSQ DQS-DQ skew (for DQS & associated DQ signals)
-
tQHS Data hold skew factor
-
tQH Data output hold time from DQS
tHP-tQHS
tDQSS Write command to 1st DQS latching transition
WL-0.25
tDQSL,H DQS input low (high) pulse width (write cycle)
0.35
tDSS DQS falling edge to CK setup time (write cycle)
0.2
tDSH DQS falling edge hold time from CK (write cycle)
0.2
tMRD Mode register set command cycle time
2
tWPRE Write preamble
0.35
tWPST Write postamble
0.40
tRPRE Read preamble
0.9
tRPST Read postamble
0.40
tRAS Active to Precharge command
45
tRC Active to Active/Auto-Refresh command period
60
tRFC Auto-Refresh to Active/Auto-Refresh command period 127.5
tRCD
Active to Read or Write delay
(with and without Auto-Precharge)
15
-
-
-
-
-
-
tACmax
tACmax
tACmax
250
350
WL+0.25
-
-
-
-
-
0.60
1.1
0.60
70000
-
-
-
-3
DDR2-667-444
min.
-450
max
+450
-400
+400
0.45
0.55
0.45
0.55
min. (tCL, tCH)
5000
8000
3000
8000
3000
8000
150
-
275
-
50
-
175
-
0.6
-
0.35
-
-
tACmax
2*tACmin tACmax
tACmin
tACmax
-
250
-
350
tHP-tQHS
WL-0.25
WL+0.25
0.35
-
0.2
-
0.2
-
2
-
0.35
-
0.40
0.60
0.9
1.1
0.40
0.60
45
70000
57
-
127.5
-
Unit Notes
ps
ps
tCK
tCK
5
ps
ps
6
ps
ps 7
ps 7
ps 8
ps 8
tCK
tCK
ps 9
ps 9
ps 9
ps 18
ps
tCK
tCK
tCK
tCK
tCK
tCK
tCK 10
tCK 9
tCK 9
ns 11
ns
ns 12
12
-
ns 13
Page 77
Rev. 1.02
May 2004
INFINEON Technologies