MT48H8M32LFB5-10:G Micron Technology Inc, MT48H8M32LFB5-10:G Datasheet - Page 17

• Manufacturer Part Number: MT48H8M32LFB5-10:G
• Manufacturer: Micron Technology Inc
• Type: Mobile SDRAMr

Specifications of MT48H8M32LFB5-10:G

• Organization: 8Mx32
• Density: 256Mb
• Address Bus: 14b
• Access Time (max): 17/8/7ns
• Maximum Clock Rate: 104MHz
• Operating Supply Voltage (typ): 1.8V
• Package Type: VFBGA
• Operating Temp Range: 0C to 70C
• Operating Supply Voltage (max): 1.9V
• Operating Supply Voltage (min): 1.7V
• Supply Current: 65mA
• Pin Count: 90
• Mounting: Surface Mount
• Operating Temperature Classification: Commercial
• Lead Free Status / Rohs Status: Compliant

two and three; data element n + 3 is either the last of a
burst of four or the last desired of a longer burst. The
256Mb SDRAM uses a pipelined architecture and
therefore does not require the 2n rule associated with a
prefetch architecture. A READ command can be initi-
pdf: 09005aef80d460f2, source: 09005aef80cd8d41
256Mb SDRAM x32_2.fm - Rev. D 9/04 EN
This is shown in Figure 10 for CAS latencies of one,
COMMAND
COMMAND
COMMAND
ADDRESS
ADDRESS
ADDRESS
NOTE: Each READ command may be to either bank. DQM is LOW.
CLK
CLK
CLK
DQ
DQ
DQ
CAS Latency = 1
Figure 10: Consecutive READ Bursts
T0
T0
T0
BANK,
COL n
BANK,
BANK,
READ
COL n
READ
COL n
READ
CAS Latency = 2
CAS Latency = 3
T1
T1
T1
NOP
NOP
NOP
D
OUT
n
T2
T2
T2
NOP
NOP
NOP
D
D
n + 1
OUT
OUT
n
T3
T3
T3
NOP
NOP
NOP
17
D
D
n + 2
D
n + 1
OUT
OUT
OUT
n
ated on any clock cycle following a previous READ
command. Full-speed random read accesses can be
performed to the same bank, as shown in Figure 11, or
each subsequent READ may be performed to a differ-
ent bank.
T4
T4
BANK,
T4
BANK,
BANK,
READ
COL b
READ
COL b
READ
COL b
X = 0 cycles
X = 1 cycle
D
n + 2
D
n + 1
D
n + 3
Micron Technology, Inc., reserves the right to change products or specifications without notice.
OUT
OUT
OUT
X = 2 cycles
T5
T5
T5
NOP
NOP
NOP
D
n + 2
D
D
n + 3
OUT
OUT
OUT
b
T6
T6
NOP
NOP
D
D
n + 3
OUT
OUT
b
DON’T CARE
T7
NOP
MOBILE SDRAM
D
OUT
b
©2003 Micron Technology, Inc. All rights reserved.
256Mb: x32
PRELIMINARY