ISL32430E Datasheet, PDF (4/21 Pages) Intersil Corporation – ±40V Fault Protected, 3.3V to 5V, ±15V Common Mode Range, RS-485/RS-422 Transceivers With Cable Invert and ±15kV ESD

ISL32430E, ISL32432E, ISL32433E, ISL32435E, ISL32437E
Pin Descriptions (Continued)
PIN NUMBER
ISL32430E, ISL32430E,
PIN ISL32433E, ISL32433E, ISL32432E,
NAME 14 LD SOIC 10 LD MSOP ISL32435E ISL32437E
FUNCTION
B/Z
N/A
N/A
7
7
±40V Fault Protected and ±15kV ESD protected RS-485/RS-422 I/O pin. For parts
without the cable invert function - or if INV is low - B/Z is the inverting receiver input and
inverting driver output. If INV is high, B/Z is the non-inverting receiver input and the
non-inverting driver output. Pin is an input if DE = 0; pin is an output if DE = 1.
A
12
9
N/A
N/A ±40V Fault Protected and ±15kV ESD protected RS-485/RS-422 non-inverting
receiver input.
B
11
8
N/A
N/A ±40V Fault Protected and ±15kV ESD protected RS-485/RS-422 inverting receiver
input.
Y
9
6
N/A
N/A ±40V Fault Protected and ±15kV ESD protected RS-485/RS-422 non-inverting driver
output.
Z
10
7
N/A
N/A ±40V Fault Protected and ±15kV ESD protected RS-485/RS-422 inverting driver
output.
V_CC
14
10
8
INV
N/A
N/A
N/A
8
System power supply input (3V to 5.5V).
2
Receiver and driver Cable Invert (polarity selection) input. When driven high this pin
swaps the polarity of the driver output and receiver input pins. If unconnected
(floating) or connected low, normal RS-485 polarity conventions apply. Internally
pulled low.
NC
1, 8, 13
N/A
N/A
N/A No Internal Connection.
4
FN7920.0
March 1, 2012