ISL32600E_14 Datasheet, PDF (3/23 Pages) Intersil Corporation – 1.8V to 3.3V, Micro-Power, ±15kV ESD, +125°C, Slew Rate Limited, RS-485/RS-422 Transceivers

ISL32600E, ISL32601E, ISL32602E, ISL32603E
Truth Tables
TRANSMITTING
INPUTS
OUTPUTS
RE
DE
DI
Z
Y
X
1
1
0
1
X
1
0
1
0
0
0
X
High-Z
High-Z
1
0
X
High-Z * High-Z *
NOTE: *Shutdown Mode (See Note 11).
Truth Tables (continued)
RECEIVING
INPUTS
RE
DE
DE
A-B
Half Duplex Full Duplex
0
0
X
≥ 0.2V
0
0
X
≤ -0.2V
0
0
X
Inputs Open
1
0
0
X
1
1
1
X
NOTE: *Shutdown Mode (See Note 11).
OUTPUT
RO
1
0
1
High-Z *
High-Z
Pin Descriptions
8 LD
10 LD 14 LD
PIN PACKAGE PACKAGE PACKAGE
FUNCTION
RO
1
1
2 Receiver output: If A-B ≥ 200mV, RO is high; If A-B ≤ -200mV, RO is low; RO = High if A and B are unconnected
(floating).
RE
2
2
3 Receiver output enable. RO is enabled when RE is low; RO is high impedance when RE is high. If the Rx enable
function isn’t required, connect RE directly to GND.
DE
3
3
4 Driver output enable. The driver outputs, Y and Z, are enabled by bringing DE high, and are high impedance
when DE is low. If the Tx enable function isn’t required, connect DE to V_CC.
DI
4
4
5 Driver input. A low on DI forces output Y low and output Z high. Similarly, a high on DI forces output Y high
and output Z low.
GND
5
5
6, 7 Ground connection.
A/Y
6
-
-
±15kV IEC61000 ESD Protected RS-485/422 level, noninverting receiver input and noninverting driver
output. Pin is an input if DE = 0; pin is an output if DE = 1.
B/Z
7
-
-
±15kV IEC61000 ESD Protected RS-485/422 level, Inverting receiver input and inverting driver output. Pin is
an input if DE = 0; pin is an output if DE = 1.
A
-
9
12 ±15kV IEC61000 ESD Protected RS-485/422 level, noninverting receiver input.
B
-
8
11 ±15kV IEC61000 ESD Protected RS-485/422 level, inverting receiver input.
Y
-
6
9 ±15kV IEC61000 ESD Protected RS-485/422 level, noninverting driver output.
Z
-
7
10 ±15kV IEC61000 ESD Protected RS-485/422 level, inverting driver output.
V_CC
8
10
14 System power supply input (2.7V to 3.6V for ISL32600E and ISL32601E; 1.8V to 3.6V for ISL32602E and
ISL32603E).
NC
-
-
1, 8, 13 No Internal Connection.
3
FN7967.0
June 22, 2012