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NM1282KSLAXAL 데이터시트(PDF) 108 Page - Nanya Technology Corporation.

부품명 NM1282KSLAXAL
상세설명  MCP Specification
PDF  120 Pages
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제조업체  NANYA [Nanya Technology Corporation.]
홈페이지  http://www.nanya.com
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NM1282KSLAXAL 데이터시트(HTML) 108 Page - Nanya Technology Corporation.

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Version 1.3
108
Nanya Technology Corp.
06/2018
All Rights Reserved. ©
2Gb SLC NAND + 2Gb LPDDR2
NM1282KSLAXAL
NTC Proprietary
Level: Property
MR4_Device Temperature (MA<7:0> = 04H)
MR#
MA <7:0>
Function
Access
OP7
OP6
OP5
OP4
OP3
OP2
OP1
OP0
4
04H
Refresh Rate
R
TUF
(RFU)
Refresh Rate
OP<2:0>
Refresh Rate
Read-only
000B: SDRAM Low temperature operating limit exceeded
001B: 4x tREFI, 4x tREFIpb, 4x tREFW
010B: 2x tREFI, 2x tREFIpb, 2x tREFW
011B: 1x tREFI, 1x tREFIpb, 1x tREFW (<=85C)
100B: RFU
101B: 0.25x tREFI, 0.25x tREFIpb, 0.25x tREFW,
do not de-rate SDRAM AC timing
110B: 0.25x tREFI, 0.25x tREFIpb, 0.25x tREFW,
de-rate SDRAM AC timing
111B: SDRAM High temperature operating limit exceeded
OP7
TUF
(Temperature Update Flag)
Read-only
0B: OP<2:0> value has not changed since last read of MR4.
1B: OP<2:0> value has changed since last read of MR4.
Notes:
1.
A Mode Register Read from MR4 will reset OP7 to “0”.
2.
OP7 is reset to “0” at power-up.
3.
If OP2 equals “1”, the device temperature is greater than 85C.
4.
OP7 is set to “1”, if OP2~OP0 has changed at any time since the last read of MR4.
5.
LPDDR2 might not operate properly when OP<2:0> = 000B or 111B.
6.
For specified operating temperature range and maximum operating temperature.
7.
LPDDR2 devices must be derated by adding 1.875ns to the following core timing parameters: tRCD, tRC, tRAS, tRP and tRRD. The
tDQSCK parameter must be derated. Prevailing clock frequency specifications and related setup and hold timings remain
unchanged.
8.
The recom
mended frequency for reading MR4 is provided in “Temperature Sensor”.



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