MT48LC8M16A2P-75 IT:G TR Micron Technology Inc, MT48LC8M16A2P-75 IT:G TR Datasheet - Page 37

• Manufacturer Part Number: MT48LC8M16A2P-75 IT:G TR
• Description: DRAM Chip SDRAM 128M-Bit 8Mx16 3.3V 54-Pin TSOP-II T/R
• Manufacturer: Micron Technology Inc
• Type: SDRAMr

Specifications of MT48LC8M16A2P-75 IT:G TR

• Density: 128 Mb
• Maximum Clock Rate: 133 MHz
• Package: 54TSOP-II
• Address Bus Width: 14 Bit
• Operating Supply Voltage: 3.3 V
• Maximum Random Access Time: 6|5.4 ns
• Operating Temperature: -40 to 85 °C
• Format - Memory: RAM
• Memory Type: SDRAM
• Memory Size: 128M (8Mx16)
• Speed: 133MHz
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Package / Case: 54-TSOP II
• Organization: 8Mx16
• Address Bus: 14b
• Access Time (max): 6/5.4ns
• Operating Supply Voltage (typ): 3.3V
• Package Type: TSOP-II
• Operating Temp Range: -40C to 85C
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 3V
• Supply Current: 150mA
• Pin Count: 54
• Mounting: Surface Mount
• Operating Temperature Classification: Industrial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 557-1099-2

Figure 27:
Clock Suspend
Figure 28:
PDF: 09005aef8091e66d/Source: 09005aef8091e625
128MSDRAM_2.fm - Rev. N 1/09 EN
Power-Down
Clock Suspend During WRITE Burst
COMMAND
The clock suspend mode occurs when a column access/burst is in progress and CKE is
registered low. In the clock suspend mode, the internal clock is deactivated, “freezing”
the synchronous logic.
For each positive clock edge on which CKE is sampled LOW, the next internal positive
clock edge is suspended. Any command or data present on the input pins at the time of a
suspended internal clock edge is ignored; any data present on the DQ pins remains
driven; and burst counters are not incremented, as long as the clock is suspended. (See
examples in Figure 28 and Figure 29 on page 38.)
Clock suspend mode is exited by registering CKE HIGH; the internal clock and related
operation will resume on the subsequent positive clock edge.
INTERNAL
CLK
CKE
COMMAND
ADDRESS
All banks idle
Enter power-down mode
CLOCK
CKE
CLK
D
IN
t CKS
NOP
T0
NOP
BANK,
WRITE
COL n
T1
D
Input buffers gated off
n
IN
37
TRANSITIONING DATA
T2
(
(
(
)
(
)
)
(
)
)
(
(
(
(
)
(
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)
)
Micron Technology, Inc., reserves the right to change products or specifications without notice.
Exit power-down mode
T3
NOP
n + 1
T4
D
IN
> t CKS
128Mb: x4, x8, x16 SDRAM
DON’T CARE
NOP
T5
n + 2
NOP
D
IN
©1999 Micron Technology, Inc. All rights reserved.
DON’T CARE
ACTIVE
Operations
t RCD
t RAS
t RC