参数资料
型号: NT5DS64M8BF-6KI
厂商: NANYA TECHNOLOGY CORP
元件分类: DRAM
英文描述: DDR DRAM, PBGA60
封装: 1 MM PITCH, WBGA-60
文件页数: 5/79页
文件大小: 6238K
代理商: NT5DS64M8BF-6KI
NT5DS128M4BF
NT5DS128M4BT
NT5DS128M4BG
NT5DS128M4BS
NT5DS64M8BF
NT5DS64M8BT
NT5DS64M8BG
NT5DS64M8BS
NT5DS32M16BF
NT5DS32M16BT
NT5DS32M16BG
NT5DS32M16BS
512Mb DDR SDRAM
REV 1.3
11/2007
13
NANYA TECHNOLOGY CORP. All rights reserved.
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
Notes:
1. For a burst length of two, A1-A i selects the two-data-element block; A0 selects the first access within the block.
2. For a burst length of four, A2-A i selects the four-data-element block; A0-A1 selects the first access within the block.
3. For a burst length of eight, A3-A i selects the eight-data- element block; A0-A2 selects the first access within the block.
4. Whenever a boundary of the block is reached within a given sequence above, the following access wraps within the block.
Burst Type
Accesses within a given burst may be programmed to be either sequential or interleaved; this is referred to as the burst type
and is selected via bit A3. The ordering of accesses within a burst is determined by the burst length, the burst type and the start-
ing column address, as shown in Burst Definition on page 13.
Read Latency
The Read latency, or CAS latency, is the delay, in clock cycles, between the registration of a Read command and the availability
of the first burst of output data. The latency can be programmed 3 clocks for DDR400.
If a Read command is registered at clock edge n, and the latency is m clocks, the data is available nominally coincident with
clock edge n + m.
Reserved states should not be used as unknown operation or incompatibility with future versions may result.
Burst Definition
Burst Length
Starting Column Address
Order of Accesses Within a Burst
A2
A1
A0
Type = Sequential
Type = Interleaved
2
0
0-1
1
1-0
4
0
0-1-2-3
0
1
1-2-3-0
1-0-3-2
1
0
2-3-0-1
1
3-0-1-2
3-2-1-0
8
0
0-1-2-3-4-5-6-7
0
1
1-2-3-4-5-6-7-0
1-0-3-2-5-4-7-6
0
1
0
2-3-4-5-6-7-0-1
2-3-0-1-6-7-4-5
0
1
3-4-5-6-7-0-1-2
3-2-1-0-7-6-5-4
1
0
4-5-6-7-0-1-2-3
1
0
1
5-6-7-0-1-2-3-4
5-4-7-6-1-0-3-2
1
0
6-7-0-1-2-3-4-5
6-7-4-5-2-3-0-1
1
7-0-1-2-3-4-5-6
7-6-5-4-3-2-1-0
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