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HYS64T128020EML-3S-B Datasheet, PDF (23/39 Pages) Qimonda AG – 214-Pin Unbuffered DDR2 SDRAM MicroDIMM Modules Low Power
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Preliminary Internet Data Sheet
HYS64T128020EML-[3S/3.7/5]-B
Unbuffered DDR2 SDRAM MicroDIMM Modules
Parameter
Symbol
DQ and DM input setup time (single ended
data strobe)
tDS1(base)
DQS falling edge hold time from CK (write
tDSH
cycle)
DQS falling edge to CK setup time (write cycle) tDSS
Four Activate Window period
tFAW
Four Activate Window period
tFAW
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
Average periodic refresh Interval
Auto-Refresh to Active/Auto-Refresh
command period
tIS(base)
tLZ(DQ)
tLZ(DQS)
tMRD
tOIT
tQH
tQHS
tREFI
tREFI
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
tRP
tRP
tRPRE
tRPST
tRRD
Active bank A to Active bank B command
tRRD
period
Internal Read to Precharge command delay
Write preamble
Write postamble
Write recovery time for write without Auto-
Precharge
tRTP
tWPRE
tWPST
tWR
Internal Write to Read command delay
Exit power down to any valid command
(other than NOP or Deselect)
tWTR
tXARD
Exit active power-down mode to Read
command (slow exit, lower power)
tXARDS
DDR2–400
Min.
–25
0.2
0.2
37.5
50
MIN. (tCL, tCH)
—
475
0.6
350
2 × tAC.MIN
tAC.MIN
2
0
tHP –tQHS
—
—
—
127.5
tRP + 1tCK
15 + 1tCK
0.9
0.40
7.5
10
7.5
0.25
0.40
15
10
2
6 – AL
Max.
—
—
—
—
—
tAC.MAX
—
—
—
tAC.MAX
tAC.MAX
—
12
—
450
7.8
3.9
—
—
—
1.1
0.60
—
—
—
—
0.60
—
—
—
—
Unit
Notes1)2)3)4)5)
6)7)
ps
11)
tCK
tCK
ns
ns
13)
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)22)
ns
tCK
tCK
19)
ns
ns
20)
tCK
21)
tCK
21)
Rev. 0.5, 2007-05
23
05212007-7F24-MITO
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