mt48lc2m32b2 Micron Semiconductor Products, mt48lc2m32b2 Datasheet - Page 52

• Manufacturer Part Number: mt48lc2m32b2
• Description: Synchronous Dram
• Manufacturer: Micron Semiconductor Products

Figure 34:
PDF: 09005aef811ce1fe/Source: 09005aef811ce1d5
64MSDRAMx32_2.fm - Rev. J 12/08 EN
Power-Down Mode
COMMAND
Precharge all
BA0, BA1
DQM 0-3
active banks
A0-A9
CLK
CKE
A10
DQ
Note:
High-Z
t CKS
t CMS
t AS
SINGLE BANK
PRECHARGE
ALL BANKS
BANK(S)
T0
t CMH
t CKH
t AH
Violating refresh requirements during power-down may result in a loss of data.
Two clock cycles
All banks idle, enter
power-down mode
t CK
T1
NOP
t CKS
t CL
T2
NOP
Input buffers gated off while in
power-down mode
t CH
52
Exit power-down mode
(
(
(
(
(
(
(
)
(
)
(
)
(
)
(
)
)
(
)
)
)
)
)
(
(
)
(
(
(
(
(
(
)
)
(
)
(
)
(
)
(
)
(
)
)
(
)
)
)
(
)
)
(
)
)
)
Micron Technology, Inc., reserves the right to change products or specifications without notice.
t CKS
Tn + 1
NOP
All banks idle
©2001 Micron Technology, Inc. All rights reserved.
Tn + 2
ACTIVE
ROW
ROW
BANK
64Mb: x32 SDRAM
DON’T CARE
UNDEFINED
Timing Diagrams