NM1282KSLAXAL datasheet(79/120 Pages) NANYA

79 / 120 page

Version 1.3

Nanya Technology Corp.

06/2018

2Gb SLC NAND + 2Gb LPDDR2

NM1282KSLAXAL

NTC Proprietary

Level: Property

Single-Ended Levels for CK, , DQS, 

Symbol

Parameter

LPDDR2 1066

Unit

Min

Max

VSEH(AC)

Single-ended HIGH level for strobes

(VDDQ/2) + 0.22

Note 3

Single-ended HIGH level for CK,



(VDDCA/2) + 0.22

Note 3

VSEL(AC)

Single-ended LOW level for strobes

Note 3

(VDDQ/2) - 0.22

Single-ended LOW level for CK,



Note 3

(VDDCA/2) - 0.22

Notes:

For CK and , use VSEH/VSEL(AC) of CA; for strobes (DQS[3:0] and [3:0]) use VIH/VIL(AC) of DQ.

VIH(AC) and VIL(AC) for DQ are based on VREFDQ; VSEH(AC) and VSEL(AC) for CA are based on VREFCA. If a reduced AC HIGH or AC

LOW is used for a signal group, the reduced level applies.

These values are not defined, however the single-ended signals CK, , DQS0, , DQS1, , DQS2, , DQS3,

 must be within the respective limits (VIH(DC)max, VIL(DC)min) for single-ended signals, and must comply with the

specified limitations for overshoot and undershoot.

Cross-Point Voltage for Differential Input Signals (CK, , DQS, )

Symbol

Parameter

LPDDR2 1066

Unit

Min

Max

VIXCA(AC)

Differential input cross-point voltage relative to VDDCA/2 for CK and



-120

+120

VIXDQ(AC)

Differential input cross-point voltage relative to VDDQ/2 for DQS and



-120

+120

Notes:

1. The typical value of VIX(AC) is expected to be about 0.5 × VDD of the transmitting device, and it is expected to track variations

in VDD. VIX(AC) indicates the voltage at which differential input signals must cross.

2. For CK and , VREF = VREFCA(DC). For DQS and , VREF = VREFDQ(DC).

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