ISL31480E_10 Datasheet, PDF (4/24 Pages) Intersil Corporation – Fault Protected, Extended CMR, RS-485/RS-422 Transceivers with Cable Invert

ISL31480E, ISL31483E, ISL31485E, ISL31486E
Pin Descriptions (Continued)
ISL31486E ISL31486E ISL31486E
PIN ISL31480E ISL31483E ISL31485E (12 LD)
(10 LD)
(14 LD)
NAME PIN #
PIN #
PIN #
PIN #
PIN #
PIN #
FUNCTION
B
N/A
11
N/A
N/A
N/A
N/A
±60V Fault Protected
RS-485/RS-422 level input. If RINV
is low, then B is the inverting
receiver input. If RINV is high, then
B is the non-inverting receiver
input.
Y
N/A
9
N/A
N/A
N/A
N/A
±60V Fault Protected
RS-485/RS-422 level output. If
DINV is low, then Y is the non-
inverting driver output. If DINV is
high, then Y is the inverting driver
output
Z
N/A
10
N/A
N/A
N/A
N/A
±60V Fault Protected
RS-485/RS-422 level. If DINV is
low, then Z is the inverting driver
output. If DINV is high, then Z is
the non-inverting driver output
V_CC
10
13, 14
8
11
9
13
System power supply input (4.5V
to 5.5V).
V_L
1
N/A
N/A
12
10
14
Logic-Level Supply input (1.62V to
V_CC) which powers all the
TTL/CMOS inputs and the RO
output (logic pins). V_L sets the V_IH
and V_IL levels for logic input pins,
and sets the V_OH level for the RO
pin. Power up this supply after V_CC,
and keep V_L ≤ V_CC. To minimize
input current, logic input pins that
are strapped high externally should
connect to V_L, but they may be
connected to V_CC if necessary.
INV
N/A
N/A
2
3
3
3
Receiver and driver 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.
RINV
N/A
1
N/A
N/A
N/A
N/A
Receiver polarity selection input.
When driven high this pin swaps
the polarity of the receiver input
pins. If unconnected (floating) or
connected low, normal RS-485
polarity conventions apply.
Internally pulled low.
DINV
N/A
8
N/A
N/A
N/A
N/A
Driver polarity selection input.
When driven high this pin swaps
the polarity of the driver output
pins. If unconnected (floating) or
connected low, normal RS-485
polarity conventions apply.
Internally pulled low.
PD
TDFN
N/A
ONLY
N/A
EPAD
N/A
N/A
TDFN exposed thermal pad
(EPAD). Connect to GND.
NC
7
N/A
N/A
6
N/A
5, 7, 10 No Internal Connection.
4
FN7638.0
June 25, 2010