nt1gt72u89d0bv Nanya Techology, nt1gt72u89d0bv Datasheet - Page 23

• 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
Speed Grade Definition
REV 1.1
01/2009
CASE
Symbol
t
t
t
Symbol
t
AONPD
t
t
XARDS
AOFPD
t
t
t
t
AOND
t
t
t
XARD
AOFD
t
ANPD
AXPD
Delay
MOD
t
t
AON
MRD
REFI
t
AOF
OIT
t
RCD
RAS
t
= 0 °C ~ 85 ° C; V
RC
RP
Exit active power down to read command
Exit active power down to read command (slow
exit, lower power)
ODT turn-on delay
ODT turn-on
ODT turn-on (Power down mode)
ODT turn-off delay
ODT turn-off
ODT turn-off (Power down mode)
ODT to power down entry latency
ODT power down exit latency
MRS command to ODT update delay
OCD drive mode output delay
Minimum time clocks remains ON after CKE
asynchronously drops Low
Average Periodic Refresh Interval
(85ºC < T
Average Periodic Refresh Interval
(0ºC B T
Mode register set command cycle time
Row Cycle Time
RAS to CAS delay
Row Precharge Time
Row Active Time
Parameter
CASE
CASE
DDQ
B 85ºC)
= 1.8V
B 95º C)
Parameter
0.1V; V
Min
45
60
15
15
DD
PC2-5300
= 1.8V
-3C
70,000
Max
-
-
-
0.1V, See AC Characteristics) (Part 2 of 2)
Min
45
60
15
15
PC2-6400
t
t
23
t
-AD
t
(min)
AC (min)
AC (min)
IS +
AC(min)
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
Min.
7-AL
+ t
2.5
t
+2
AC
70,000
2
2
3
8
2
0
0
PC2-5300
Max
IH
t
+2
CK
-
-
-
-3C
3.9
7.8
t
t
t
2.5t
t
AC (max)
AC(max)
AC(max)
AC(max)
2t
Max.
+0.6
+0.7
2.5
+1
+1
12
12
CK +
2
-
-
-
-
CK +
Unit
ns
ns
ns
ns
t
t
t
t
AC (min)
AC (min)
(min)
AC(min)
IS +
8-AL
Min.
+ t
t
2.5
+2
AC
2
2
3
8
2
0
0
PC2-6400
IH
+2
t
CK
-AD
3.9
7.8
t
2.5t
t
t
t
AC (max)
AC(max)
AC(max)
AC(max)
2t
Max.
+0.6
+0.7
2.5
+1
+1
12
12
CK +
2
-
-
-
-
CK +
Unit
n
n
n
n
n
n
n
ns
ns
ns
ns
ns
ns
ns
As
As
CK
CK
CK
CK
CK
CK
CK
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