nt2gtt64u88b0un Nanya Techology, nt2gtt64u88b0un Datasheet - Page 9

• Manufacturer Part Number: nt2gtt64u88b0un
• Description: Pc2-4200/pc2-5300/pc26400 Unbuffered Ddr2 So-dimm
  
  
• Manufacturer: Nanya Techology

NT2GTT64U88B0UN / NT2GTT64U88B0US
2GB : 256M x 64
PC2-4200/PC2-5300/PC26400 Unbuffered DDR2 SO-DIMM
AC Timing Specifications for DDR2 SDRAM Devices Used on Module
(T
REV 1.3
10/2007
CASE
t
t
Symbol
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 without Auto-Precharge
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 Non- read
command
Clock Cycle Time
Clock Cycle Time (Average)
CK high-level width
CK low-level width
Write command to DQS associated clock edge
Write command to 1st DQS latching transition
DQS falling edge to CK setup time
(write cycle)
DQS falling edge hold time from CK
(write cycle)
DQS input low (high) pulse width
(write cycle)
Write preamble
Write postamble
Address and control input setup time
Address and control input hold time
Input pulse width
DQ and DM input setup time(differential data
strobe)
DQ and DM input hold time(differential data strobe)
DQ and DM input pulse width (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)
Minimum half clk period for any given cycle; defined
by clk high (t
Data hold Skew Factor
Data output hold time from DQS
Read preamble
Read postamble
Active bank A to Active bank B command
Four Activate Window for 1KB page size products
to
DDQ
CH)
= 1.8V ± 0.1V; V
or clk low (t
Parameter
CL
DD
) time
= 1.8V ± 0.1V, See AC Characteristics) (Part 1 of 2)
2t
WR+t
t
t
RFC
9
AC
3750
-0.25
-500
-450
AC
t
t
Min.
0.45
0.45
0.35
0.35
0.35
37.5
250
375
100
225
200
0.2
0.2
0.4
0.6
t
HP
QHS
0.9
0.4
7.5
7.5
7.5
t
15
CH
or
CL
2
3
2
-
-
-
PC2-4200
min
+10
min t
-
RP
RL-1
t
t
AC
AC
AC
Max.
8000
0.55
0.55
0.25
500
450
300
400
0.6
1.1
0.6
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
max
max
max 2t
NANYA reserves the right to change products and specifications without notice.
WR+t
t
RFC
t
3000
-0.25
ACmin
AC
0.48
0.48
0.35
0.35
0.40
0.35
-450
-400
t
t
0.40
37.5
Min.
200
275
100
175
200
t
QHS
0.2
0.2
0.6
t
HP
0.9
7.5
7.5
7.5
15
CH
or
CL
2
3
-
-
-
PC2-5300
+10
min t
-
RP
RL-1
t
t
AC
+0.25
ACmax
ACmax
Max.
8000
+400
0.52
0.52
0.60
0.60
450
240
340
1.1
-
-
-
-
-
-
-
-
-
-
max 2t
-
-
-
-
-
-
-
© NANYA TECHNOLOGY CORPORATION
WR+t
t
RFC
t
2500
-0.25
ACmin
AC
-400
-350
t
Min.
0.48
0.48
0.35
0.35
0.40
0.35
t
0.40
175
250
125
200
QHS
0.2
0.2
0.6
t
t
HP
0.9
7.5
7.5
7.5
50
35
15
CH
or
CL
2
3
2
-
-
-
PC2-6400
+10
min t
-
RP
RL-1
t
t
AC
+0.25
ACmax
ACmax
Max.
8000
+350
0.52
0.52
0.60
0.60
400
200
300
1.1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
max
Unit
t
t
t
t
t
t
t
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
CK
CK
CK
CK
CK
CK