USB97CFDC-MN Ver la hoja de datos (PDF) - SMSC -> Microchip

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USB97CFDC-MN

USB Floppy Disk Controller

SMSC -> Microchip 

USB PARAMETERS

The following tables and diagrams were obtained from the USB specification

USB DC PARAMETERS

1.0

0.8

0.6

0.4

0.2

0.0

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2

Common Mode Input Voltage (volts)

FIGURE 6 - DIFFERENTIAL INPUT SENSITIVITY OVER ENTIRE COMMON MODE RANGE

Table 6 - DC Electrical Characteristics

CONDITIONS

PARAMETER

SYMBOL (NOTE 1, 2)

MIN TYP

Supply Voltage

Powered (Host or Hub) Port VBUS

4.4

Supply Current

Function

ICC

Note 4

Un-configured Function (in) ICCINIT

Note 5

Suspend Device

ICCS

Leakage Current

Hi-Z State Data Line

Leakage

ILO

0 V < VIN < 3.3 -10

V

Input Levels

Differential Input Sensitivity

VDI

|(D+) - (D-)|,

0.2

and FIGURE 6

Differential Common Mode

VCM

Includes VDI

0.8

Range

range

Single Ended Receiver

VSE

0.8

Threshold

Output Levels

Static Output Low

VOL

RL of 1.5 KΩ to

3.6 V

Static Output High

VOH

RL of 15 KΩ to

2.8

GND

Capacitance

Transceiver Capacitance

CIN

Pin to GND

Terminals

Bus Pull-up Resistor on

Root Port

RPU (1.5 KΩ +/- 5%) 1.425

Bus Pull-down Resistor on

Downstream Port

RPD

(15 KΩ +/- 5%) 14.25

MAX

5.25

100

100

100

10

2.5

2.0

0.3 (3)

3.6 (3)

20

1.575

15.75

UNIT

V

mA

uA

uA

uA

V

V

V

V

V

pF

kΩ

kΩ

Note 1: All voltages are measured from the local ground potential, unless otherwise specified.

Note 2: All timing use a capacitive load (CL) to ground of 50pF, unless otherwise specified.

Note 3: This is relative to VUSBIN.

Note 4: This is dependent on block configuration set by software.

Note 5: When the internal ring oscillator and waiting for first setup packet.

SMSC DS – USB97CFDC

Page 15

Rev. 12/15/2000

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