English
Language : 

HYS64T16000HU Datasheet, PDF (30/73 Pages) Qimonda AG – 240-Pin Unbuffered DDR2 SDRAM Modules
◁
Internet Data Sheet
HYS[64/72]T[16/32/64]0xxHU–[2.5/../5]–A
Unbuffered DDR2 SDRAM Modules
Parameter
Symbol
DQS falling edge hold time from CK (write
tDSH
cycle)
DQS falling edge to CK setup time (write cycle) tDSS
Clock half period
tHP
Data-out high-impedance time from CK / CK tHZ
Address and control input hold time
tIH(base)
Address and control input pulse width
tIPW
(each input)
Address and control input setup time
DQ low-impedance time from CK / CK
DQS low-impedance from CK / CK
Mode register set command cycle time
OCD drive mode output delay
Data output hold time from DQS
Data hold skew factor
Average periodic refresh Interval
tIS(base)
tLZ(DQ)
tLZ(DQS)
tMRD
tOIT
tQH
tQHS
tREFI
Auto-Refresh to Active/Auto-Refresh
command period
Precharge-All (4 banks) command period
Precharge-All (8 banks) command period
Read preamble
Read postamble
Active bank A to Active bank B command
period
Internal Read to Precharge command delay
Write preamble
Write postamble
Write recovery time for write without Auto-
Precharge
Write recovery time for write with Auto-
Precharge
Internal Write to Read command delay
Exit power down to any valid command
(other than NOP or Deselect)
Exit active power-down mode to Read
command (slow exit, lower power)
Exit precharge power-down to any valid
command (other than NOP or Deselect)
Exit Self-Refresh to non-Read command
Exit Self-Refresh to Read command
tRFC
tRP
tRP
tRPRE
tRPST
tRRD
tRTP
tWPRE
tWPST
tWR
WR
tWTR
tXARD
tXARDS
tXP
tXSNR
tXSRD
DDR2–400
Min.
0.2
0.2
MIN. (tCL, tCH)
—
475
0.6
350
2 × tAC.MIN
tAC.MIN
2
0
tHP –tQHS
—
—
—
75
tRP + 1tCK
15 + 1tCK
0.9
0.40
7.5
10
7.5
0.25
0.40
15
tWR/tCK
10
2
6 – AL
2
tRFC +10
200
Max.
—
—
tAC.MAX
—
—
—
tAC.MAX
tAC.MAX
—
12
—
450
7.8
3.9
—
—
—
1.1
0.60
—
—
—
—
0.60
—
—
—
—
—
—
—
—
Unit
Note1)2)3)4)5)
6)7)
tCK
tCK
12)
ps
13)
ps
11)
tCK
ps
11)
ps
14)
ps
14)
tCK
ns
ps
µs
14)15)
µs
16)18)
ns
17)
ns
ns
tCK
14)
tCK
14)
ns
14)18)
ns
16)20)
ns
tCK
tCK
19)
ns
tCK
20)
ns
21)
tCK
22)
tCK
22)
tCK
ns
tCK
Rev. 1.41, 2006-11
30
03062006-0GN5-WTPW
 ▷