Description:The ISL81334 and ISL41334 are two-port interface ICs in which each port can be independently configured as a single RS-485, RS-422 transceiver, or as a dual (2 Tx, 2 Rx) RS-232 transceiver. With both ports set to the same mode, two RS-485, RS-422 transceivers, or four RS-232 transceivers are available. If either port is in RS-232 mode, the onboard charge pump generates RS-232 compliant ±5V Tx output levels from a single VCC supply as low as 4.5V. Four small 0.1µF capacitors are required for the charge pump.
ALSO OPERATE WITH 1 TRANSMITTER AND 1 RECEIVER IN RS-485 MODE
Differential Output:
NO
Driver Number of Bits:
2
High Level Input Current-Max:
0.000002 A
Input Characteristics:
SCHMITT TRIGGER
Interface IC Type:
LINE TRANSCEIVER
Interface Standard:
EIA-232; EIA-422; EIA-485
JESD-30 Code:
S-XQCC-N40
JESD-609 Code:
e3
Length:
6 mm
Moisture Sensitivity Level:
3
Number of Functions:
2
Number of Terminals:
40
Operating Temperature-Max:
85 °C
Operating Temperature-Min:
-40 °C
Out Swing-Min:
2 V
Output Low Current-Max:
0.003 A
Output Polarity:
INVERTED
Package Body Material:
UNSPECIFIED
Package Code:
HVQCCN
Package Equivalence Code:
LCC40,.24SQ,20
Package Shape:
SQUARE
Package Style:
CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Cel):
260
Receive Delay-Max:
120 ns
Receiver Number of Bits:
2
Seated Height-Max:
1 mm
Supply Current-Max:
7 mA
Supply Voltage-Max:
5.5 V
Supply Voltage-Min:
4.5 V
Supply Voltage-Nom:
5 V
Supply Voltage1-Max:
5.5 V
Supply Voltage1-Min:
4.5 V
Supply Voltage1-Nom:
5 V
Surface Mount:
YES
Technology:
BICMOS
Temperature Grade:
INDUSTRIAL
Terminal Finish:
Matte Tin (Sn) - annealed
Terminal Form:
NO LEAD
Terminal Pitch:
0.5 mm
Terminal Position:
QUAD
Time@Peak Reflow Temperature-Max (s):
30
Transmit Delay-Max:
2000 ns
Width:
6 mm
ISL41334IRZ Frequently Asked Questions (FAQs)
A good PCB layout for the ISL41334IRZ involves keeping the analog and digital grounds separate, using a solid ground plane, and placing the device close to the power supply. Additionally, it's recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane.
The ISL41334IRZ requires a single 3.3V power supply. It's recommended to use a low-dropout linear regulator (LDO) to power the device. The power sequencing requirement is to power up the device after the power supply has stabilized, and to ensure that the power supply is within the recommended operating range.
The recommended clock frequency for the ISL41334IRZ is 25MHz, but it can operate up to 50MHz. The clock signal quality should be a clean, low-jitter signal with a duty cycle of 50% ± 10%. A clock signal with excessive jitter or noise can affect the device's performance and accuracy.
The ISL41334IRZ has several configuration options, such as gain settings, filter settings, and output modes. The optimal configuration depends on the specific application requirements. It's recommended to consult the datasheet and application notes for guidance on configuring the device for optimal performance.
The ISL41334IRZ has a maximum junction temperature of 150°C. To ensure reliable operation, it's recommended to keep the device temperature below 125°C. This can be achieved by using a heat sink, improving airflow, and reducing power consumption.
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Manufacturer Collaborated
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System Verified
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ISL41334IRZ Overview
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