Si8440/41/42/45
4. Pin Descriptions
V
DD1
V
DD2
V
DD1
V
DD2
V
DD1
V
DD2
GND1
RF
XMITR
RF
XMITR
RF
XMITR
RF
XMITR
GND2
GND1
RF
XMITR
RF
XMITR
RF
XMITR
RF
RCVR
GND2
GND1
RF
XMITR
RF
XMITR
RF
RCVR
RF
RCVR
GND2
A1
A2
A3
A4
I
s
o
l
a
t
i
o
n
RF
RCVR
RF
RCVR
RF
RCVR
RF
RCVR
B1
A1
B2
A2
B3
A3
B4
A4
I
s
o
l
a
t
i
o
n
RF
RCVR
RF
RCVR
RF
RCVR
RF
XMITR
B1
A1
B2
A2
B3
A3
B4
A4
I
s
o
l
a
t
i
o
n
RF
RCVR
RF
RCVR
RF
RF
XMITR
RCVR
RF
XMITR
B1
B2
B3
B4
NC
EN2/NC
EN1
EN2
EN1
EN2
GND1
Si8440/45
GND2
GND1
Si8441
GND2
GND1
Si8442
GND2
Name
V
DD1
GND1
A1
A2
A3
A4
EN1/NC
2
GND1
GND2
EN2/NC
2
B4
B3
B2
B1
GND2
V
DD2
SOIC-16 Pin#
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Type
Supply
Ground
Digital Input
Digital Input
Digital I/O
Digital I/O
Digital Input
Ground
Ground
Digital Input
Digital I/O
Digital I/O
Digital Output
Digital Output
Ground
Supply
Description
Side 1 power supply.
Side 1 ground.
Side 1 digital input.
Side 1 digital input.
Side 1 digital input or output.
Side 1 digital input or output.
Side 1 active high enable. NC on Si8440/45.
Side 1 ground.
Side 2 ground.
Side 2 active high enable. NC on Si8445.
Side 2 digital input or output.
Side 2 digital input or output.
Side 2 digital output.
Side 2 digital output.
Side 2 ground.
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.
2.
No Connect. These pins are not internally connected. They can be left floating, tied to V
DD
or tied to GND.
26
Rev. 1.5
SILABS [ SILICON LABORATORIES ]
