FUSB251

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3

PRODUCT PIN ASSIGNMENTS

Pin Configuration

Figure 2. Pin Configuration

CC2

CAP

SBU1

SBU2

CC2_H

GND

SBU1_H

SBU2_H

SCL

SDA

VDD

CC1

INTB

CC1_H

FM

1

23

A

B

C

D

E

CC2

CAP

SBU1

SBU2

CC2_H

GND

SBU1_H

SBU2_H

SCL

SDA

VDD

CC1_H

INTB

CC1

FM

1

2

3

A

B

C

D

E

Top through View

Bottom View

Pin Descriptions

PIN DESCRIPTIONS

Pin#

Name

Type

Description

C1

GND

Ground

GND

A2

VDD

Power

Power

A3

CC1

I/O

Type−C CC interface. Connect to USB Type−C connector CC1 pin

B3

CC2

I/O

Type−C CC interface. Connect to USB Type−C connector CC2 pin

A1

CC1_H

I/O

Type−C CC Host interface, Connect to USB Type−C controller CC1 pin

B1

CC2_H

I/O

Type−C CC Host interface, Connect to USB Type−C controller CC2 pin

D3

SBU1

I/O

Type−C SBU interface, Connect to USB Type−C connector SBU1 pin

E3

SBU2

I/O

Type−C SBU interface, Connect to USB Type−C connector SBU2 pin

D1

SBU1_H

I/O

Type−C SBU Host Interface, Connect to Host side SBU1 application pin

E1

SBU2_H

I/O

Type−C SBU Host Interface, Connect to Host side SBU2 application pin.

E2

FM

I/O

Factory test mode pin, Connect to ADC input of host processor. If not

used, connect to GND. FM can be switched over to one of SBU.

C3

CAP

O

Capacitor pin, Connect to 0.1 mF capacitor to GND

B2

SCL

C2

SDA

Open Drain I/O

D2

INTB

Open Drain Output Interrupt for Host alert, Pull−up to VDD required, Connect to processor

Interrupt input