ISL32457EIUZ-T7A Intersil, ISL32457EIUZ-T7A Datasheet - Page 5

• Manufacturer Part Number: ISL32457EIUZ-T7A
• Description: RS-422/RS-485 Interface IC 60V OVP POLV -40+85 5V RS-485 1/2 DUP
• Manufacturer: Intersil

Specifications of ISL32457EIUZ-T7A

• Product Category: RS-422/RS-485 Interface IC
• Rohs: yes
• Data Rate: 250 Kbps, 1 Mbps
• Operating Supply Voltage: 3.3 V to 5 V
• Supply Current: 4.5 mA
• Operating Temperature Range: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Package / Case: MSOP-8
• Function: Transceiver
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Shutdown: Yes

Typical Operating Circuits
ISL32450E, ISL32452E, ISL32453E, ISL32455E, ISL32457E
2
1
3
4
2
3
4
5
1
2
3
4
INV
RO
DE
DI
RO
RE
DE
RO
RE
DE
DI
DI
D
D
D
R
R
R
14
+3.3V
8
GND
+3.3V
+3.3V
V
8
GND
V
GND
V
CC
CC
5
CC
5
A/Y
ISL32457E HALF DUPLEX NETWORK USING CABLE INVERT FUNCTION
B/Z
6, 7
5
A
B
B/Z
A/Y
Z
Y
12
11
10
9
THE IC ON THE LEFT HAS THE CABLE CONNECTIONS
SWAPPED, SO THE INV PIN IS STRAPPED HIGH TO
INVERT THE RX AND TX POLARITY
6
7
+
7
6
0.1µF
+
+
0.1µF
ISL32452E, ISL32455E HALF DUPLEX NETWORK
ISL32450E, ISL32453E FULL DUPLEX NETWORK
R
0.1µF
R
T
R
T
T
SOIC PINOUT SHOWN
R
R
T
0.1µF
0.1µF
T
R
0.1µF
T
+
+
+
7
6
7
6
10
11
12
9
B/Z
A/Y
A/Y
B/Z
Y
Z
B
A
GND
+3.3V
V
GND
+3.3V
+3.3V
V
5
V
GND
CC
CC
CC
6, 7
8
5
8
14
R
R
R
D
D
D
RO
RO
DE
RE
DE
RE
INV
DI
RO
DI
DE
DI
5
4
4
3
3
2
2
1
1
3
4
2
February 20, 2012
FN7921.0