MT48H8M16LFB4-75:J TR Micron Technology Inc, MT48H8M16LFB4-75:J TR Datasheet - Page 39

• Manufacturer Part Number: MT48H8M16LFB4-75:J TR
• Manufacturer: Micron Technology Inc
• Type: Mobile SDRAMr

Specifications of MT48H8M16LFB4-75:J TR

• Organization: 8Mx16
• Density: 128Mb
• Address Bus: 14b
• Access Time (max): 8/5.4ns
• Maximum Clock Rate: 133MHz
• Operating Supply Voltage (typ): 1.8V
• Package Type: VFBGA
• Operating Temp Range: 0C to 70C
• Operating Supply Voltage (max): 1.95V
• Operating Supply Voltage (min): 1.7V
• Supply Current: 70mA
• Pin Count: 54
• Mounting: Surface Mount
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Compliant

Figure 15:
Operating Mode
Write Burst Mode
Extended Mode Register (EMR)
PDF: 09005aef832ff1ea/Source: 09005aef832ff1ac
sdr_mobile_sdram_cmd_op_timing_dia_fr10_08__3.fm - Rev. E 4/09 EN
CAS Latency
The normal operating mode is selected by setting M7 and M8 to zero; the other combi-
nations of values for M7 and M8 are reserved for future use. Reserved states should not
be used because unknown operation or incompatibility with future versions may result.
When M9 = 0, the BL programmed via M[2:0] applies to both READ and WRITE bursts;
when M9 = 1, the programmed BL applies to READ bursts, but write accesses are single-
location (nonburst) accesses.
The EMR controls additional functions beyond those controlled by the mode register.
These additional functions are special features of the Mobile SDRAM device that help
reduce overall system power consumption and include TCSR, PASR, and output drive
strength.
The EMR is programmed via the LMR command (BA1 = 1, BA0 = 0) and retains the stored
information until it is programmed again or the device loses power.
Command
Command
CLK
CLK
DQ
DQ
READ
READ
T0
T0
CL = 2
128Mb: 8 Meg x 16, 4 Meg x 32 Mobile SDRAM
NOP
NOP
T1
T1
39
t LZ
t AC
CL = 3
Micron Technology, Inc., reserves the right to change products or specifications without notice.
NOP
T2
T2
NOP
t LZ
Dout
t OH
t AC
Don’t Care
T3
T3
NOP
Dout
t OH
Undefined
©2008 Micron Technology, Inc. All rights reserved.
Register Definition
T4