Elixir 2GB DDR2-800 PC2-6400 SDRAM DIMM M2Y2G64TU8HG5B-AC User Manual
Product codes
M2Y2G64TU8HG5B-AC
M2Y(F)1G64TU88G7(4) B / M2Y(F)2G64TU8HG5(4) B
1GB: 128M x 64 / 2GB: 256M x 64
Unbuffered DDR2 SDRAM DIMM
REV 1.0
13
10/2010
© NANYA TECHNOLOGY CORP.
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
AC Timing Specifications for DDR2 SDRAM Devices Used on Module
(T
CASE
= 0 °C ~ 85 °C; V
DDQ
= 1.8V ± 0.1V; V
DD
= 1.8V ± 0.1V, See AC Characteristics) (Part 2 of 2)
Symbol
Parameter
PC2-6400
Unit
Min.
Max.
T
xard
Exit active power down to read command
2
-
Nck
T
xards
Exit active power down to read command
8-AL
Nck
T
aond
ODT turn-on delay
2
2
Nck
T
aon
ODT turn-on
T
ac (min)
T
ac
(max)+0.7
ns
T
aonpd
ODT turn-on (Power down mode)
T
ac (min)
+2
2T
ck +
T
ac(max)
+1
ns
T
aofd
ODT turn-off delay
2.5
2.5
Nck
T
aof
ODT turn-off
T
ac(min)
T
ac(max)
+0.6
ns
T
aofpd
ODT turn-off (Power down mode)
T
ac (min)
+2
2.5T
ck +
T
ac(max)
+1
ns
T
anpd
ODT to power down entry latency
3
-
Nck
T
axpd
ODT power down exit latency
8
Nck
T
mrd
Mode register set command cycle time
2
-
Nck
T
mod
MRS command to ODT update delay
0
12
ns
T
oit
OCD drive mode output delay
0
12
ns
t
Delay
Minimum time clocks remains ON after CKE
asynchronously drops Low
asynchronously drops Low
Tis + Tck +
Tih
Tih
-
ns
Trfc
Refresh to active/Refresh command time
127.5
ns
T
refi
Average Periodic Refresh Interval
(85ºC < T
(85ºC < T
CASE
≤ 95ºC)
3.9
μs
Average Periodic Refresh Interval
(0ºC ≤ T
(0ºC ≤ T
CASE
≤ 85ºC)
7.8
μs
Speed Grade Definition
Symbol
Parameter
PC2-6400
Unit
Min
Max
T
ras
Row Active Time
45
70,000
ns
T
rc
Row Cycle Time
57.5
-
ns
T
rcd
RAS to CAS delay
12.5
-
ns
T
rp
Row Precharge Time
12.5
-
ns