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Rainbow Electronics W90P710CDG User Manual

Page 517

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W90P710CD/W90P710CDG

- 518 -

7.2.2 USB Transceiver DC Characteristics

SYMBOL

PARAMETER

CONDITIONS

MIN.

MAX.

UNIT

V

DI

Differential Input Sensitivity

DP − DM

0.2 V

V

CM

Differential Common Mode Range

Includes V

DI

range

0.8

2.5

V

V

SE

Single Ended Receiver Threshold

0.8

2.0

V

V

OL

Static Output Low Voltage

RL of 1.5 K

Ω to 3.6 V

0.3 V

V

OH

Static Output High Voltage

RL of 15 K

Ω to VSS

2.8 3.6 V

V

CRS

Output Signal Crossover Voltage

1.3

2.0

V

Z

DRV

Driver Output Resistance

Steady state drive

28

43

C

IN

Pin

Capacitance

20

pF

7.3 AC

Specifications

7.3.1 EBI/SDRAM Interface AC Characteristics

T

DH

T

DSU

1.5V

Output Valid

Iutput Valid

1.5V

1.5V

1.5V

MCLK

MCLK

D[31:0]

D[31:0]

SDRAM input to W90P710

W90P710 write to SDRAM

T

DO

SYMBOL PARAMETER MIN.

MAX.

UNIT

T

DSU

D [31:0] Setup Time

2

ns

T

DH

D [31:0] Hold Time

2

ns

T

DO

D [31:0], A [24:0], nSCS [1:0], SDQM [3:0], CKE, nSWE,
nSRAS, nSCAS

2 7 ns