MT48LC16M8A2TG-75:G Micron Technology Inc, MT48LC16M8A2TG-75:G Datasheet - Page 19

• Manufacturer Part Number: MT48LC16M8A2TG-75:G
• Description: DRAM Chip SDRAM 128M-Bit 16Mx8 3.3V 54-Pin TSOP-II Tray
• Manufacturer: Micron Technology Inc
• Type: SDRAMr

Specifications of MT48LC16M8A2TG-75:G

• Package: 54TSOP-II
• Density: 128 Mb
• Address Bus Width: 14 Bit
• Operating Supply Voltage: 3.3 V
• Maximum Clock Rate: 133 MHz
• Maximum Random Access Time: 6|5.4 ns
• Operating Temperature: 0 to 70 °C

Table 5:
CAS Latency
PDF: 09005aef8091e66d/Source: 09005aef8091e625
128MSDRAM_2.fm - Rev. N 1/09 EN
Burst Definition
Notes:
1. For full-page accesses: y = 2,048 (x4), y = 1,024 (x8), and y = 512 (x16).
2. For BL = 2, A1–A9, A11 (x4), A1–A9 (x8), or A1–A8 (x16) select the block-of-two burst; A0
3. For BL = 4, A2–A9, A11 (x4), A2–A9 (x8), or A2–A8 (x16) select the block-of-four burst; A0–
4. For BL = 8, A3–A9, A11 (x4), A3–A9 (x8), or A3–A8 (x16) select the block-of-eight burst; A0–
5. For a full-page burst, the full row is selected and A0–A9, A11 (x4), A0–A9 (x8), or A0–A8
6. Whenever a boundary of the block is reached within a given sequence above, the following
The CL is the delay, in clock cycles, between the registration of a READ command and
the availability of the first piece of output data. The latency can be set to 2 or 3 clocks.
If a READ command is registered at clock edge n and the latency is m clocks, the data will
be available by clock edge n + m. The DQ will start driving as a result of the clock edge 1
cycle earlier (n + m - 1), and provided that the relevant access times are met, the data will
be valid by clock edge n + m. For example, assuming that the clock cycle time is such that
all relevant access times are met, if a read command is registered at T0 and the latency is
programmed to 2 clocks, the DQ will start driving after T1 and the data will be valid by
T2, as shown in Figure 8 on page 20. Table 6 on page 20 indicates the operating frequen-
cies at which each CL setting can be used.
Reserved states should not be used as unknown operation or incompatibility with future
versions may result.
Full page
Length
Burst
selects the starting column within the block.
A1 select the starting column within the block.
A2 select the starting column within the block.
(x16) select the starting column.
access wraps within the block.
(y)
2
4
8
A2
Starting Column
0
0
0
0
1
1
1
1
n = A0–A11/9/8
(location 0–y)
Address
A1
A1
0
0
1
1
0
0
1
1
0
0
1
1
A0
A0
A0
19
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Type = Sequential
Micron Technology, Inc., reserves the right to change products or specifications without notice.
Cn, Cn + 1, Cn + 2,
Cn + 3, Cn + 4...,
0-1-2-3-4-5-6-7
1-2-3-4-5-6-7-0
2-3-4-5-6-7-0-1
3-4-5-6-7-0-1-2
4-5-6-7-0-1-2-3
5-6-7-0-1-2-3-4
6-7-0-1-2-3-4-5
7-0-1-2-3-4-5-6
...Cn - 1, Cn
Order of Accesses Within a Burst
0-1-2-3
1-2-3-0
2-3-0-1
3-0-1-2
0-1
1-0
128Mb: x4, x8, x16 SDRAM
Functional Description
©1999 Micron Technology, Inc. All rights reserved.
Type = Interleaved
0-1-2-3-4-5-6-7
1-0-3-2-5-4-7-6
2-3-0-1-6-7-4-5
3-2-1-0-7-6-5-4
4-5-6-7-0-1-2-3
5-4-7-6-1-0-3-2
6-7-4-5-2-3-0-1
7-6-5-4-3-2-1-0
Not supported
0-1-2-3
1-0-3-2
2-3-0-1
3-2-1-0
0-1
1-0