mt47h128m16hg-3-it Micron Semiconductor Products, mt47h128m16hg-3-it Datasheet - Page 69

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

Figure 52:
Figure 53:
PDF: 09005aef824f87b6/Source: 09005aef824f1182
2gb_ddr2.fm - Rev. A 9/06 EN
REFRESH Command to Power-Down Entry
ACTIVE Command to Power-Down Entry
Notes:
Notes:
COMMAND
1. The earliest precharge power-down entry may occur is at T2 which is 1 x
COMMAND
1. The earliest active power-down entry may occur is at T2, which is 1 x
ADDRESS
REFRESH command. Precharge power-down entry occurs prior to
command. Active power-down entry occurs prior to
CK#
CKE
CK#
CKE
CK
CK
VALID
VALID
T0
T0
69
REFRESH
ACTIVE
VALID
T1
T1
1 t CK
1 x
Micron Technology, Inc., reserves the right to change products or specifications without notice.
t
CK
Power-down
Power-down
entry
entry
NOP
2Gb: x4, x8, x16 DDR2 SDRAM
NOP
T2
T2
t
RCD (MIN) being satisfied.
1
1
t CKE (MIN)
t CKE (MIN)
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Power-Down Mode
T3
t
T3
RFC (MIN) being satisfied.
t
CK after the ACTIVE
DON’T CARE
DON’T CARE
t
CK after the