MC-45D32DA721KFA-C75 데이터 시트보기 (PDF) - Elpida Memory, Inc

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MC-45D32DA721KFA-C75

32 M-WORD BY 72-BIT DDR SYNCHRONOUS DYNAMIC RAM MODULE REGISTERED TYPE

Elpida Memory, Inc 

AC Characteristics (Recommended Operating Conditions unless otherwise noted)

Test Conditions

Parameter

Symbol

Value

Unit Notes

Input Reference voltage (Input timing measurement reference level)

Termination voltage (Output timing measurement reference level)

High level ac input voltage

Low level ac input voltage

Input differential voltage (CK0 and /CK0)

Input signal slew rate

VREF

VTT

VIH(ac)

VIL(ac)

VID(ac)

SLEW

VDDQ x 0.5

VREF

VREF + 0.31

VREF − 0.31

0.7

1

V

V

1

V

V

V

V/ns 2

Notes 1. Output waveform timing is measured where the output signal crosses through the VTT level.

2. Slew rate is to be maintained in the VIL (ac) to VIH(ac) range of the input signal swing. SLEW = (VIH(ac)-

VIL(ac))/ ∆t

Output

VTT

RT = 50 Ω

CLOAD = 30 pF

Preliminary Data Sheet E0037N10

7

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