MT48LC8M32B2B5-6 Micron Technology Inc, MT48LC8M32B2B5-6 Datasheet - Page 18

• Manufacturer Part Number: MT48LC8M32B2B5-6
• Manufacturer: Micron Technology Inc
• Type: SDRAMr

Specifications of MT48LC8M32B2B5-6

• Organization: 8Mx32
• Density: 256Mb
• Address Bus: 14b
• Access Time (max): 17/7.5/5.5ns
• Maximum Clock Rate: 166MHz
• Operating Supply Voltage (typ): 3.3V
• Package Type: FBGA
• Operating Temp Range: 0C to 70C
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 3V
• Supply Current: 165mA
• Pin Count: 90
• Mounting: Surface Mount
• Operating Temperature Classification: Commercial
• Lead Free Status / Rohs Status: Compliant

NOTE:
Data from any READ burst may be truncated with a
subsequent WRITE command, and data from a fixed-
length READ burst may be immediately followed by
data from a WRITE command (subject to bus turn-
around limitations). The WRITE burst may be initiated
on the clock edge immediately following the last (or
last desired) data element from the READ burst, pro-
09005aef8140ad6d
MT48LC8M32B2_2.fm - Rev. B 10/04 EN
Each READ command may be to either bank. DQM is LOW.
COMMAND
COMMAND
COMMAND
ADDRESS
ADDRESS
ADDRESS
CLK
CLK
CLK
DQ
DQ
DQ
Figure 11: Random READ Accesses
CL = 1
T0
T0
BANK,
BANK,
T0
BANK,
COL n
COL n
COL n
READ
READ
READ
CL = 2
CL = 3
T1
T1
T1
BANK,
BANK,
BANK,
READ
COL a
READ
COL a
READ
COL a
D
OUT
n
T2
T2
BANK,
BANK,
T2
COL x
COL x
READ
READ
READ
BANK,
COL x
D
D
OUT
OUT
n
a
18
T3
T3
T3
BANK,
COL m
BANK,
COL m
READ
READ
READ
BANK,
COL m
vided that I/O contention can be avoided. In a given
system design, there may be a possibility that the
device driving the input data will go Low-Z before the
SDRAM DQs go High-Z. In this case, at least a single-
cycle delay should occur between the last read data
and the WRITE command.
D
D
D
OUT
x
OUT
OUT
a
n
Micron Technology, Inc., reserves the right to change products or specifications without notice.
T4
T4
T4
NOP
NOP
NOP
D
D
D
OUT
OUT
OUT
m
x
a
T5
T5
NOP
NOP
D
D
OUT
m
OUT
x
DON’T CARE
T6
NOP
D
OUT
m
©2003 Micron Technology, Inc. All rights reserved.
256Mb: x32
SDRAM