MC-45D16CA721 datasheet(7/16 Pages) ELPIDA

部件名	MC-45D16CA721

功能描述	16 M-WORD BY 72-BIT DDR SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE

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制造商	ELPIDA [Elpida Memory]

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Preliminary Data Sheet E0035N10

7

AC Characteristics (Recommended Operating Conditions unless otherwise noted)

Test Conditions

Parameter

Symbol

Value

Unit

Notes

Input Reference voltage (Input timing measurement reference level)

VREF

VDDQ x 0.5

V

Termination voltage (Output timing measurement reference level)

VTT

VREF

V

1

High level ac input voltage

VIH(ac)

VREF + 0.31

V

Low level ac input voltage

VIL(ac)

VREF

− 0.31

V

Input differential voltage (CK0 - CK2 and /CK0 - /CK2)

VID(ac)

0.7

V

Input signal slew rate

SLEW

1

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

RT = 50

Ω

CLOAD = 30 pF

VTT

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类似说明 - MC-45D16CA721

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