AS4C64M32MD2-25BCN datasheet(87/129 Pages) ALSC

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8. AC and DC Output Measurement Levels

8.1 Single Ended AC and DC Output Levels

Table 31 shows the output levels used for measurements of single ended signals.

Table 31 — Single-ended AC and DC Output Levels

Symbol

Parameter

LPDDR2-1066

to LPDDR2-200

Unit

Notes

VOH(DC)

DC output high measurement level (for IV curve linearity)

0.9 x VDDQ

VOH(DC)

DC output low measurement level (for IV curve linearity)

0.1 x VDDQ

VOH(AC)

AC output high measurement level (for output slew rate)

VREFDQ + 0.12

VOH(AC)

AC output low measurement level (for output slew rate)

VREFDQ - 0.12

IOZ

Output Leakage Current (DQ, DM, DQS, DQS#)

Min

-5

DQS are disabled ; 0V

≤ VOUT ≤ VDDQ

Max

MMPUPD

Delta RON between pull-up and pull-down for DQ/DM

Min

-15

Max

NOTE 1 IOH = -0.1mA.

NOTE 2 IOL = 0.1mA

8.2 Differential AC and DC Output Levels

Table 32 shows the output levels used for measurements of diffential signals (DQS, DQS#).

Table 32 — Differential AC and DC Output Levels

Symbol

Parameter

LPDDR2-800

Unit

Notes

VOHdiff(DC)

AC differential output high measurement level (for output SR)

+0.20 x VDDQ

VOLdiff(DC)

AC differential output low measurement level (for output SR)

-0.20 x VDDQ

NOTE 1 IOH = -0.1mA.

NOTE 2 IOL = 0.1mA

AS4C64M32MD2-25BCN

AS4C128M16MD2-25BCN

Confidential

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Rev.1.0 July 2016

AS4C64M32MD2-25BCN Datasheet(PDF) 87 Page - Alliance Semiconductor Corporation

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