nt1gt64uh8g0fs Nanya Techology, nt1gt64uh8g0fs Datasheet - Page 15

• Manufacturer Part Number: nt1gt64uh8g0fs
• Description: Based On Ddr2-667/800 64mx16 1gb /128mx8 2gb Sdram G-die
• Manufacturer: Nanya Techology

NT1GT64UH8G0FS / NT2GT64U8HG0BS
1GB: 128M x 64 / 2GB: 256M x 64
PC2-5300 / PC2-6400
Unbuffered DDR2 SO-DIMM
AC Timing Specifications for DDR2 SDRAM Devices Used on Module
(T
REV 1.0
08/2010
CASE
Symbol
t
t
t
LZ(DQS)
t
DQSCK
t
t
t
t
LZ(DQ)
t
t
t
t
t
WPRE
DQSQ
t
DQSS
DQSH
t
t
WPST
t
DQSL
t
RPRE
RPST
t
t
DIPW
Delay
t
t
QHS
t
DSH
MRD
REFI
t
t
t
t
t
t
DSS
RFC
IPW
t
t
CH
DH
QH
AC
CL
HP
CK
DS
HZ
IH
IS
= 0 °C ~ 85 °C; V
DQ output access time from CK/
DQS output access time from CK/
CK high-level width
CK low-level width
Minimum half clk period for any given cycle; defined by clk high
(t
Clock Cycle Time
DQ and DM input hold time
DQ and DM input setup time
Input pulse width
DQ and DM input pulse width (each input)
Data-out high-impedance time from CK/
Data-out low-impedance time from CK/
DQS low-impedance time from CK/
DQS-DQ skew (DQS & associated DQ signals)
Data hold Skew Factor
Data output hold time from DQS
Write command to 1
DQS input high pulse width
DQS input low pulse width
DQS falling edge to CK setup time
(write cycle)
DQS falling edge hold time from CK
(write cycle)
Mode register set command cycle time
Write postamble
Write preamble
Address and control input hold time
Address and control input setup time
Read preamble
Read postamble
Minimum time clocks remains ON after CKE asynchronously
drops Low
Refresh to active/Refresh command time
Average Periodic Refresh Interval
(85ºC < T
Average Periodic Refresh Interval
(0ºC ≤ T
CH
)
or clk low (t
CASE
CASE
DDQ
≤ 85ºC)
= 1.8V ± 0.1V; V
≤ 95ºC)
CL
) time
st
DQS latching transition
Parameter
DD
= 1.8V ± 0.1V, See AC Characteristics) (Part 1 of 2)
15
Min(tCH(ab.
s),tCL(abs))
t
IS
2xt
+
0.275
-0.45
t
-0.25
Min.
0.48
0.48
0.35
t
0.35
0.35
0.40
0.35
-0.4
175
100
AC min
t
t
0.6
HP
0.2
0.2
0.2
0.9
0.4
QHS
CK(avg)
t
AC min
3
2
-
-
-
IH
NANYA reserves the right to change products and specifications without notice.
–
127.5
-3C
3.9
7.8
+
+0.45
t
t
t
Max.
+0.4
0.52
0.52
0.24
0.34
0.25
0.60
AC max
AC max
AC max
1.1
0.6
8
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
s),tCL(abs))
Min(tCH(ab.
t
IS
2xt
+
0.250
0.175
-0.40
-0.35
t
-0.25
Min.
0.48
0.48
0.35
t
0.35
0.35
0.40
0.35
125
AC min
t
t
2.5
0.6
HP
0.2
0.2
0.9
0.4
50
QHS
CK(avg)
t
AC min
2
© NANYA TECHNOLOGY CORPORATION
-
-
-
IH
–
127.5
-AD
3.9
7.8
+
L
+0.40
+0.35
t
t
t
Max.
0.52
0.52
AC max
AC max
AC max
0.20
0.30
0.25
0.60
1.1
0.6
8
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Unit
ns
ns
t
t
t
ns
ps
ps
t
t
ns
ns
ns
ns
ns
ns
t
t
t
t
t
t
t
t
ns
ns
t
t
ns
ns
μs
μs
CK
CK
CK
CK
CK
CK
CK
CK
CK
CK
CK
CK
CK
CK
CK
Notes