MT48LC2M32B2TG-7:GTR Micron Technology Inc, MT48LC2M32B2TG-7:GTR Datasheet - Page 26
![](/photos/40/77/407734/tsop-ii-86_sml.jpg)
MT48LC2M32B2TG-7:GTR
Manufacturer Part Number
MT48LC2M32B2TG-7:GTR
Description
Manufacturer
Micron Technology Inc
Type
SDRAMr
Datasheet
1.MT48LC2M32B2TG-7GTR.pdf
(69 pages)
Specifications of MT48LC2M32B2TG-7:GTR
Organization
2Mx32
Density
64Mb
Address Bus
13b
Access Time (max)
17/8/5.5ns
Maximum Clock Rate
143MHz
Operating Supply Voltage (typ)
3.3V
Package Type
TSOP-II
Operating Temp Range
0C to 70C
Operating Supply Voltage (max)
3.6V
Operating Supply Voltage (min)
3V
Supply Current
160mA
Pin Count
86
Mounting
Surface Mount
Operating Temperature Classification
Commercial
Lead Free Status / Rohs Status
Not Compliant
Figure 13:
PDF: 09005aef811ce1fe/Source: 09005aef811ce1d5
64MSDRAMx32_2.fm - Rev. J 12/08 EN
READ-to-WRITE With Extra Clock Cycle
Note:
COMMAND
A fixed-length READ burst may be followed by, or truncated with, a PRECHARGE
command to the same bank (provided that auto precharge was not activated), and a full-
page burst may be truncated with a PRECHARGE command to the same bank. The
PRECHARGE command should be issued x cycles before the clock edge at which the last
desired data element is valid, where x equals CL - 1. This is shown in Figure 14 on
page 27 for each possible CAS latency; data element n + 3 is either the last of a burst of
four or the last desired of a longer burst. Following the PRECHARGE command, a subse-
quent command to the same bank cannot be issued until
the row precharge time is hidden during the access of the last data element(s).
In the case of a fixed-length burst being executed to completion, a PRECHARGE
command issued at the optimum time (as described above) provides the same operation
that would result from the same fixed-length burst with auto precharge. The disadvan-
tage of the PRECHARGE command is that it requires that the command and address
buses be available at the appropriate time to issue the command; the advantage of the
PRECHARGE command is that it can be used to truncate fixed-length or full-page bursts.
Full-page READ bursts can be truncated with the BURST TERMINATE command, and
fixed-length READ bursts may be truncated with a BURST TERMINATE command,
provided that auto precharge was not activated. The BURST TERMINATE command
should be issued x cycles before the clock edge at which the last desired data element is
valid, where x equals CL - 1. This is shown in Figure 15 on page 28 for each possible CAS
latency; data element n + 3 is the last desired data element of a longer burst.
ADDRESS
CL = 3 is used for illustration. The READ command may be to any bank, and the WRITE
command may be to any bank.
DQM
CLK
DQ
BANK,
COL n
T0
READ
T1
NOP
26
T2
NOP
Micron Technology, Inc., reserves the right to change products or specifications without notice.
T3
NOP
t HZ
D
OUT
n
T4
NOP
DON’T CARE
T5
BANK,
COL b
WRITE
t
RP is met. Note that part of
D
IN
b
t
DS
©2001 Micron Technology, Inc. All rights reserved.
64Mb: x32 SDRAM
Commands