nt1gt72u89d0bv Nanya Techology, nt1gt72u89d0bv Datasheet - Page 22

• Manufacturer Part Number: nt1gt72u89d0bv
• Description: Based On Ddr2-667/800 128mx8 1gb/2gb And 256mx4 2gb/4gb Sdram D-die
• Manufacturer: Nanya Techology

NT1GT72U89D0BV / NT2GT72U4PD0BV / NT4GT72U4ND0BV
NT2GT72U8PD0BV
1GB: 128M x 72 / 2GB: 256M x 72 / 4GB: 512M x 72
PC2-5300 / PC3-6400
Registered DDR2 SDRAM DIMM
AC Timing Specifications for DDR2 SDRAM Devices Used on Module
(T
REV 1.1
01/2009
CASE
t
Symbol
t
DQSL,(H)
t
LZ(DQS)
t
t
t
t
DQSCK
t
t
t
t
t
t
LZ(DQ)
WPRE
WPST
DQSQ
t
t
DQSS
t
t
t
RPRE
t
t
t
t
XSNR
XSRD
t
DIPW
RPST
t
t
WTR
t
WL
t
QHS
t
RRD
FAW
CCD
t
t
DSS
DSH
t
t
t
t
DAL
RTP
CKE
t
IPW
WR
t
t
QH
CK
CH
DS
DH
AC
HZ
HP
XP
= 0 °C ~ 85 ° C; V
CL
IS
IH
Write recovery time
Auto precharge write recovery + precharge time
Internal write to read command delay
Internal read to precharge command delay
CKE minimum pulse width
Exit self refresh to a Non-read command
Exit self refresh to a Read command
Exit precharge power down to any command
Average clock period
Average clock high-level width
Average clock low-level width
Write command to DQS associated clock edge
DQS latching rising transitions to associated clock
edges
DQS falling edge to CK setup time
DQS falling edge hold time from CK
DQS input low (high) pulse width
Write preamble
Write postamble
Address and control input setup time
Address and control input hold time
Control & Address Input pulse width for each input
DQ and DM input setup time
DQ and DM input hold time
DQ and DM input pulse width for each input
DQ output access time from CK/
DQS output access time from CK/
Data-out high-impedance time from CK/
DQS low-impedance time from CK/
DQ low-impedance time from CK/
DQS-DQ skew (DQS & associated DQ signals)
CK half pulse width
Data hold Skew Factor
DQ/DQS output hold time from DQS
Read preamble
Read postamble
Active to Active command period
Four Activate Window
to
DDQ
command delay
= 1.8V
Parameter
0.1V; V
DD
= 1.8V
0.1V, See AC Characteristics) (Part 1 of 2)
2t
Min(t
WR+t
t
22
t
t
RFC
CL(abs))
AC
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
3000
-0.25
Min.
-450
-400
AC
t
t
0.48
0.48
0.35
0.35
0.35
37.5
200
275
100
175
abs),
200
0.2
0.2
0.4
0.6
HP
QHS
0.9
0.4
7.5
7.5
7.5
15
2
3
2
-
-
-
PC2-5300
min
+10
min t
CH(
-
RP
RL-1
-3C
t
t
AC
AC
AC
Max.
8000
0.52
0.52
0.25
450
400
240
340
0.6
1.1
0.6
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
max
max
max 2t
Min(t
WR+t
t
t
RFC
CL(abs))
t
2500
-0.25
ACmin
AC
Min.
0.48
0.48
0.35
0.35
0.40
0.35
-400
-350
t
t
0.40
abs),
175
250
125
200
QHS
0.2
0.2
0.6
HP
0.9
7.5
7.5
7.5
50
35
15
2
3
2
-
-
-
PC2-6400
+10
min t
CH(
-
RP
RL-1
-AD
t
t
AC
+0.25
ACmax
ACmax
Max.
8000
0.52
0.52
0.60
0.60
400
350
200
300
1.1
-
-
-
-
-
-
-
-
-
-
max
-
-
-
-
-
-
-
-
Unit
nCK
n
nC
nCK
nCK
nCK
t
t
t
t
t
t
t
t
t
t
t
t
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
ns
ns
ns
ns
ns
ns
CK
CK
CK
CK
CK
CK
CK
CK
CK
CK
CK
CK
CK
© NANYA TECHNOLOGY CORP.
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