mt48h8m16lf Micron Semiconductor Products, mt48h8m16lf Datasheet - Page 44

• Manufacturer Part Number: mt48h8m16lf
• Description: 128mb 8 Meg X 16, 4 Meg X 32 Mobile Sdram
• Manufacturer: Micron Semiconductor Products

Figure 20:
Figure 21:
PDF: 09005aef832ff1ea / Source: 09005aef832ff1ac
sdr_mobile_sdram_cmd_op_timing_dia_fr5.08__4.fm - Rev. B 6/08 EN
READ-to-WRITE with Extra Clock Cycle
READ-to-PRECHARGE
Notes:
Notes:
1. DQM is LOW.
1. CL = 3. The READ command may be to any bank, and the WRITE command may be to any
Command
Command
Command
Address
bank.
Address
Address
DQM
CLK
DQ
CLK
CLK
DQ
DQ
T0
Bank,
Col n
Bank a,
Bank a,
READ
T0
T0
Col n
READ
READ
Col
CL = 2
CL = 3
T1
NOP
T1
T1
NOP
NOP
128Mb: 8 Meg x 16, 4 Meg x 32 Mobile SDRAM
44
T2
Transitioning Data
NOP
T2
T2
NOP
NOP
D
OUT
n
T3
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T3
T3
NOP
NOP
NOP
D
t
HZ
OUT
n + 1
D
D
OUT
OUT
n
n
PRECHARGE
PRECHARGE
T4
(a or all)
(a or all)
Transitioning Data
NOP
T4
T4
Bank
Bank
X = 1 cycle
n + 2
D
n + 1
D
OUT
OUT
X = 2 cycles
Don’t Care
T5
Bank,
Col b
WRITE
T5
T5
NOP
NOP
D
IN
n + 3
n + 2
D
D
b
t
OUT
OUT
DS
t RP
t RP
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T6
T6
Timing Diagrams
NOP
NOP
n + 3
D
OUT
Don’t Care
Bank a,
Bank a,
ACTIVE
ACTIVE
T7
T7
Row
Row
Preliminary