mt47h128m16hg-3-it Micron Semiconductor Products, mt47h128m16hg-3-it Datasheet - Page 76

• Manufacturer Part Number: mt47h128m16hg-3-it
• Description: 2gb X4, X8, X16 Ddr2 Sdram
• Manufacturer: Micron Semiconductor Products

Figure 60:
Table 12:
PDF: 09005aef824f87b6/Source: 09005aef824f1182
2gb_ddr2.fm - Rev. A 9/06 EN
DDR2-400/533 ODT Timing for Active and Fast-Exit Power-Down Modes
ODT Timing for Active or Fast-Exit Power-Down Mode
Note:
ADDR
CMD
Parameter
ODT
ODT turn-on delay
ODT turn-on
ODT turn-off delay
ODT turn-off
CK#
CKE
R
CK
TT
The half-clock of
must be derated by the amount of half-clock duty cycle error. For example, if the clock
duty cycle was 47/53,
0.03, or 2.53, for
VALID
VALID
T0
t
CK
VALID
VALID
t
t
T1
AOF (MAX).
AOFD’s 2.5
t
CH
t
AOFD would actually be 2.5 - 0.03, or 2.47, for
Symbol
t
t
AOND
t
AOFD
t
t AON (MIN)
AON
AOF
t
CL
t AOND
t AON (MAX)
VALID
VALID
76
T2
t
CK assumes a 50/50 clock duty cycle. This half-clock value
R
TT
Unknown
Micron Technology, Inc., reserves the right to change products or specifications without notice.
t
t
VALID
VALID
AC (MIN)
AC (MIN)
t AOFD
T3
Min
2.5
2
2Gb: x4, x8, x16 DDR2 SDRAM
VALID
VALID
T4
R
TT
On
t
AC (MAX) + 1,000
t
AC (MAX) + 600
VALID
VALID
t AOF (MIN)
T5
t AOF (MAX)
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Max
2.5
2
t
AOF (MIN) and 2.5 +
DON’T CARE
VALID
VALID
T6
ODT Timing
Units
t
t
CK
ps
CK
ps