MT48H32M16LFBF-75 IT:B Micron Technology Inc, MT48H32M16LFBF-75 IT:B Datasheet - Page 30

• Manufacturer Part Number: MT48H32M16LFBF-75 IT:B
• Manufacturer: Micron Technology Inc
• Type: SDRAMr

Specifications of MT48H32M16LFBF-75 IT:B

• Organization: 32Mx16
• Density: 512Mb
• Address Bus: 15b
• Access Time (max): 8/5.4ns
• Maximum Clock Rate: 133MHz
• Operating Supply Voltage (typ): 1.8V
• Package Type: VFBGA
• Operating Temp Range: -40C to 85C
• Operating Supply Voltage (max): 1.95V
• Operating Supply Voltage (min): 1.7V
• Supply Current: 90mA
• Pin Count: 54
• Mounting: Surface Mount
• Operating Temperature Classification: Industrial
• Lead Free Status / Rohs Status: Compliant

WRITE
Figure 10: WRITE Command
PDF: 09005aef82ea3742
512mb_mobile_sdram_y47m.pdf – Rev. H 12/09 EN
Note:
The WRITE command is used to initiate a burst write access to an active row. The val-
ues on the BA0 and BA1 inputs select the bank; the address provided selects the starting
column location. The value on input A10 determines whether auto precharge is used. If
auto precharge is selected, the row being accessed is precharged at the end of the write
burst; if auto precharge is not selected, the row remains open for subsequent accesses.
Input data appearing on the DQ is written to the memory array, subject to the DQM
input logic level appearing coincident with the data. If a given DQM signal is registered
LOW, the corresponding data is written to memory; if the DQM signal is registered
HIGH, the corresponding data inputs are ignored and a WRITE is not executed to that
byte/column location.
BA0, BA1
Address
1. EN AP = enable auto precharge, DIS AP = disable auto precharge.
RAS#
CAS#
A10
WE#
CKE
CLK
CS#
1
HIGH
Valid address
512Mb: 32 Meg x 16, 16 Meg x 32 Mobile SDRAM
Column address
Bank address
DIS AP
EN AP
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© 2007 Micron Technology, Inc. All rights reserved.
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