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AS4C64M32MD2-25BCN Datasheet(PDF) 17 Page - Alliance Semiconductor Corporation

Part # AS4C64M32MD2-25BCN
Description  Deep Power Down Mode
PDF  129 Pages
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Manufacturer  ALSC [Alliance Semiconductor Corporation]
Direct Link  https://www.alliancememory.com
Logo ALSC - Alliance Semiconductor Corporation

AS4C64M32MD2-25BCN Datasheet(HTML) 17 Page - Alliance Semiconductor Corporation

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MR1 Device Feature 1 (MA <7:0> =01H) :
OP7
OP6
OP5
OP4
OP3
OP2
OP1
OP0
nWR (for AP)
WC
BT
BL
BL
Write-only
OP<2:0>
010B: BL4 (default)
011B: BL8
110B: BL16
All others : reserved
BT
Write-only
OP<3>
0B: Sequential (default)
1
1B: Interleaved
WC
Write-only
OP<4>
0B: Wrap (default)
1B: No wrap (allowed for SDRAM BL4 only)
nWR
Write-only
OP<7:5>
001B: nWR =3(default)
010B: nWR =4
011B: nWR =5
100B: nWR =6
101B: nWR =7
110B :nWR =8
All others : reserved
2
NOTE 1 BL 16, interleaved is not an official combination to be supported.
NOTE 2 Programmed value in nWR register is the number of clock cycles which determines when to start internal
precharge operation for a write burst with AP enabled. It is determined by RU(tWR/tCK).
AS4C64M32MD2-25BCN
AS4C128M16MD2-25BCN
Confidential
- 17/129 -
Rev.1.0 July 2016



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