SI8441AB-D-IS Datasheet, PDF (26/38 Pages) Silicon Laboratories – LOW-POWER QUAD-CHANNEL DIGITAL ISOLATOR

Si8440/41/42/45
4. Pin Descriptions
VDD1
GND1
A1
A2
A3
A4
NC
GND1
I
RF
s
RF
XMITR
RCVR
o
RF
XMITR
l
RF
RCVR
a
RF
XMITR
t
RF
RCVR
i
RF
XMITR
o
RF
RCVR
n
Si8440/45
VDD2
VDD1
GND2
GND1
B1
A1
B2
A2
B3
A3
B4
A4
EN2/NC
EN1
GND2
GND1
I
RF
s
RF
XMITR
RCVR
o
RF
XMITR
l
RF
RCVR
a
RF
XMITR
t
RF
RCVR
i
RF
RCVR
o
RF
XMITR
n
Si8441
VDD2
GND2
B1
B2
B3
B4
EN2
GND2
VDD1
GND1
A1
A2
A3
A4
EN1
GND1
I
RF
s
RF
XMITR
RCVR
o
RF
XMITR
l
RF
RCVR
a
RF
RCVR
t
RRFF
XRMCIVTRR
i
RF
RCVR
o RF
XMITR
n
Si8442
VDD2
GND2
B1
B2
B3
B4
EN2
GND2
Name
SOIC-16 Pin#
Type
Description¹
V_DD1
GND1
1
Supply
Side 1 power supply.
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
EN1/NC²
6
Digital I/O Side 1 digital input or output.
7
Digital Input Side 1 active high enable. NC on Si8440/45.
GND1
8
Ground
Side 1 ground.
GND2
EN2/NC²
9
Ground
Side 2 ground.
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.
V_DD2
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.
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