ISL32496EIUZ Datasheet, PDF (3/22 Pages) Intersil Corporation – ±60V Fault Protected, 5V, RS-485/RS-422 Transceivers with ±25V CMR and ESD Protection

ISL32490E, ISL32492E, ISL32493E, ISL32495E, ISL32496E, ISL32498E
Pin Configurations
ISL32492E, ISL32495E, ISL32498E
(8 LD MSOP, 8 LD SOIC)
TOP VIEW
RO 1
R
RE 2
DE 3
DI 4
D
8 VCC
7 B/Z
6 A/Y
5 GND
ISL32490E, ISL32493E, ISL32496E
(10 LD MSOP)
TOP VIEW
RO 1
R
RE 2
DE 3
DI 4
D
GND 5
10 V_CC
9A
8B
7Z
6Y
ISL32490E, ISL32493E, ISL32496E
(14 LD SOIC)
TOP VIEW
NC 1
RO 2
R
RE 3
DE 4
DI 5
D
GND 6
GND 7
14 VCC
13 VCC
12 A
11 B
10 Z
9Y
8 NC
NOTE: Evaluate creepage and clearance requirements at your maximum fault voltage before using small pitch packages (e.g., MSOP).
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
(see Note) (see Note)
NOTE: Low Power Shutdown Mode (see Note 11 on page 9).
RECEIVING
INPUTS
OUTPUT
RE
DE
DE
A-B
RO
Half Duplex Full Duplex
0
0
X
≥ -0.01V
1
0
0
X
≤ -0.2V
0
0
0
X
Inputs
1
Open/Shorted
1
0
0
X
High-Z
(see Note)
1
1
1
X
High-Z
NOTE: Low Power Shutdown Mode (see Note 11 on page 9).
Pin Descriptions
PIN
NAME
RO
RE
DE
DI
GND
A/Y
B/Z
A
B
8 LD
PIN #
1
2
3
4
5
6
7
-
-
10 LD 14 LD
PIN # PIN #
FUNCTION
1
2 Receiver output. If A-B ≥ -10mV, RO is high; if A-B ≤ -200mV, RO is low; RO = High if A and B are
unconnected (floating), shorted together, or connected to an undriven, terminated bus.
2
3 Receiver output enable. RO is enabled when RE is low; RO is high impedance when RE is high. Internally
pulled low.
3
4 Driver output enable. The driver outputs, Y and Z, are enabled by bringing DE high. They are high
impedance when DE is low. Internally pulled high.
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.
5
6, 7 Ground connection.
-
- ±60V Fault and ±16.5kV HBM ESD Protected RS-485/RS-422 level, non-inverting receiver input and
non-inverting driver output. Pin is an input if DE = 0; pin is an output if DE = 1.
-
- ±60V Fault and ±16.5kV HBM ESD Protected RS-485/RS-422 level, inverting receiver input and inverting
driver output. Pin is an input if DE = 0; pin is an output if DE = 1.
9
12 ±60V Fault and ±15kV HBM ESD Protected RS-485/RS-422 level, non-inverting receiver input.
8
11 ±60V Fault and ±15kV HBM ESD Protected RS-485/RS-422 level, inverting receiver input.
3
FN7786.2
March 16, 2012