mt48h8m16lf Micron Semiconductor Products, mt48h8m16lf Datasheet - Page 53

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

Figure 31:
Figure 32:
PDF: 09005aef832ff1ea / Source: 09005aef832ff1ac
sdr_mobile_sdram_cmd_op_timing_dia_fr5.08__4.fm - Rev. B 6/08 EN
Command
BA0, BA1
Address
DQM
CLK
CKE
A10
DQ
t CMS
t CKS
t AS
t AS
t AS
Bank 0
ACTIVE
T0
Row
Row
t CKH
t CMH
t AH
t AH
t AH
Terminating a WRITE Burst
Alternating Bank Write Accesses
t RCD - bank 0
t RAS - bank 0
t
t
RC - bank 0
RRD
Notes:
Notes:
t CK
T1
NOP
1. DQM is LOW.
1. For this example, BL = 4.
Command
Enable auto precharge
t CMS
t CL
Address
Column m
t DS
Bank 0
T2
WRITE
D
CLK
IN
DQ
Transitioning Data
t CMH
t DH
t CH
m
WRITE
Bank,
t DS
Col n
D
D
T0
n
IN
T3
IN
NOP
m + 1
t DH
TERMINATE
BURST
T1
t DS
Bank 1
D
ACTIVE
Row
T4
Row
IN
m + 2
128Mb: 8 Meg x 16, 4 Meg x 32 Mobile SDRAM
t DH
53
COMMAND
t RCD - bank 1
Don’t Care
Address
Data
T2
NEXT
t DS
D
T5
IN
NOP
m + 3
t DH
t WR - bank 0
Micron Technology, Inc., reserves the right to change products or specifications without notice.
Enable auto precharge
t DS
Column b
Bank 1
WRITE
T6
D
IN
t DH
b
t DS
D
T7
NOP
IN
b + 1
t DH
t RP - bank 0
©2008 Micron Technology, Inc. All rights reserved.
t DS
D
Timing Diagrams
T8
NOP
IN
b + 2
t DH
t DS
D
Bank 0
Row
Row
T9
ACTIVE
IN
Preliminary
m + 3
t RCD - bank 0
t WR - bank 1
t DH
Don’t Care