Si8440/41/42/45

26

Rev. 1.5

4. Pin Descriptions

Name

SOIC-16 Pin#

Type

Description1

1

Supply

Side 1 power supply.

GND1

2

Ground

Side 1 ground.

A1

3

Digital Input

Side 1 digital input.

A2

4

Digital Input

Side 1 digital input.

A3

5

Digital I/O

Side 1 digital input or output.

A4

6

Digital I/O

Side 1 digital input or output.

EN1/NC2

7

Digital Input

Side 1 active high enable. NC on Si8440/45.

GND1

8

Ground

Side 1 ground.

GND2

9

Ground

Side 2 ground.

EN2/NC2

10

Digital Input

Side 2 active high enable. NC on Si8445.

B4

11

Digital I/O

Side 2 digital input or output.

B3

12

Digital I/O

Side 2 digital input or output.

B2

13

Digital Output

Side 2 digital output.

B1

14

Digital Output

Side 2 digital output.

GND2

15

Ground

Side 2 ground.

16

Supply

Side 2 power supply.

Notes:

1. For narrow-body devices, Pin 2 and Pin 8 GND must be externally connected to respective ground. Pin 9 and Pin 15

must also be connected to external ground.

GND1

A1

A3

A4

EN1

GND1

A2

GND2

B2

B1

B4

B3

GND2

EN2

I

s

o

l

a

t

i

o

n

RF

XMITR

RF

RCVR

RF

XMITR

RF

RCVR

RF

XMITR

RF

RCVR

RF

XMITR

RF

RCVR

Si8441

GND1

A1

A3

A4

NC

GND1

A2

GND2

B2

B1

B4

B3

GND2

EN2/NC

I

s

o

l

a

t

i

o

n

RF

XMITR

RF

RCVR

RF

XMITR

RF

RCVR

RF

XMITR

RF

RCVR

RF

XMITR

RF

RCVR

Si8440/45

GND1

A1

A3

A4

EN1

GND1

A2

GND2

B2

B1

B4

B3

GND2

EN2

I

s

o

l

a

t

i

o

n

RF

XMITR

RF

RCVR

RF

XMITR

RF

RCVR

RF

RCVR

RF

XMITR

RF

RCVR

RF

XMITR

RF

RCVR

Si8442