EDJ8232B5MB datasheet(28/142 Pages) ELPIDA

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EDJ8232B5MB

Data Sheet E1825E30 (Ver. 3.0)

6. Measurement Definition for VM and

VM:

Measure voltage (VM) at test pin (midpoint) with no load:

100

VDDQ













 





ODT Temperature and Voltage Sensitivity

If temperature and/or voltage change after calibration, the tolerance limits widen according to the table ODT

Sensitivity Definition and ODT Voltage and Temperature Sensitivity.

T = T  T (@calibration); V= VDDQ  VDDQ (@calibration); VDD = VDDQ

Note: dRTTdT and dRTTdV are not subject to production test but are verified by design and characterization.

[ODT Sensitivity Definition]

min.

max.

Unit

RTT

0.9

 dRTTdT  |ΔT| - dRTTdV  |ΔV|

1.6 + dRTTdT

|ΔT| + dRTTdV  |ΔV|

RZQ/2, 4, 6, 8, 12

[ODT Voltage and Temperature Sensitivity]

min.

max.

Unit

dRTTdT

1.5

C

dRTTdV

0.15

%/mV

ODT Timing Definitions

Test Load for ODT Timings

Different than for timing measurements, the reference load for ODT timings are defined in ODT Timing Reference

Load.

RTT = 25



VDDQ

CK, /CK

VTT = VSSQ

DUT

DQS,

/DQS

ODT Timing Reference Load

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