mt48h8m16lf Micron Semiconductor Products, mt48h8m16lf Datasheet - Page 26

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

Figure 10:
PRECHARGE
PDF: 09005aef832ff1ea / Source: 09005aef832ff1ac
sdr_mobile_sdram_cmd_op_timing_dia_fr5.08__4.fm - Rev. B 6/08 EN
WRITE Command
Notes:
1. EN AP = enable auto precharge, DIS AP = disable auto precharge
The PRECHARGE command is used to deactivate the open row in a particular bank or
the open row in all banks. The bank(s) will be available for a subsequent row access a
specified time (
whether one or all banks are to be precharged, and in the case where only one bank is to
be precharged, inputs BA0, BA1 select the bank. Otherwise BA0, BA1 are treated as
“Don’t Care.” After a bank has been precharged, it is in the idle state and must be acti-
vated prior to any READ or WRITE commands being issued to that bank. Figure 11 on
page 27 shows the PRECHARGE command.
BA0, BA1
Address
RAS#
CAS#
WE#
A10
CKE
CLK
CS#
1
HIGH
t
Valid Address
RP) after the precharge command is issued. Input A10 determines
Column
address
address
128Mb: 8 Meg x 16, 4 Meg x 32 Mobile SDRAM
DIS AP
EN AP
Bank
26
Don’t Care
Micron Technology, Inc., reserves the right to change products or specifications without notice.
©2008 Micron Technology, Inc. All rights reserved.
Commands
Preliminary