Micron 2933 - Инструкция по эксплуатации - Страница 25

Registering Clock Driver Specifications

Table 19: Registering Clock Driver Electrical Characteristics

DDR4 RCD01 devices or equivalent

Parameter

Symbol

Pins

Min

Nom

Max

Units

DC supply voltage

V

DD

–

1.14

1.2

1.26

V

DC reference voltage

V

REF

V

REFCA

0.49 × V

DD

0.5 × V

DD

0.51 × V

DD

V

DC termination
voltage

V

TT

–

V

REF

 - 40mV

V

REF

V

REF

 + 40mV

V

High-level input
voltage

V

IH. CMOS

DRST_n

0.65 × V

DD

–

V

DD

V

Low-level input
voltage

V

IL. CMOS

0

–

0.35 × V

DD

V

DRST_n pulse width

t

IN-

IT_Pow-

er_stable

–

1.0

–

–

µs

AC high-level output
voltage

V

OH(AC)

All outputs except

ALERT_n

V

TT

 + (0.15 × V

DD

)

–

–

V

AC low-level output
voltage

V

OL(AC)

–

–

V

TT

 + (0.15 × V

DD

)

V

AC differential out-
put high measure-
ment level (for out-
put slew rate)

V

OHdiff(AC)

Yn_t - Yn_c, BCK_t -

BCK_c

–

0.3 × V

DD

–

mV

AC differential out-
put low measure-
ment level (for out-
put slew rate)

V

OLdiff(AC)

–

–0.3 × V

DD

–

mV

Note: 1. Timing and switching specifications for the register listed are critical for proper opera-

tion of DDR4 SDRAM RDIMMs. These are meant to be a subset of the parameters for the
specific device used on the module. See the JEDEC RCD01 specification for complete op-
erating electrical characteristics. Registering clock driver parametric values are specified
for device default control word settings, unless otherwise stated. The RC0A control
word setting does not affect parametric values.

16GB (x72, ECC, DR) 288-Pin DDR4 RDIMM

Registering Clock Driver Specifications

CCMTD-1725822587-9899
asf18c2gx72pdz.pdf - Rev. H 7/19 EN

25

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