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ISL31491EIBZ
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Product Detailed Parameters
- Description：IC TRANSCEIVER FULL 1/1 8SOIC
- Mfr：Renesas Electronics Corporation
- Package：Tube
- Series：-
- Type：Transceiver
- Protocol：RS422, RS485
- Number of Drivers/Receivers：1月1日
- Duplex：Full
- Data Rate：250kbps
- Voltage - Supply：4.5V ~ 5.5V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Receiver Hysteresis：25 mV
- Grade：-
- Qualification：-
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Overview
The ISL31491EIBZ is a half-duplex RS-485/RS-422 transceiver in an 8-lead SOIC package. It operates at data rates up to 250 kbps with a typical quiescent supply current of 2.3 mA. The device provides ±60V fault protection on bus pins and supports a common mode range of ±25V. It features full fail-safe receiver inputs, hot-plug capability, and delivers a typical differential output voltage of 2.5V into a 54Ω load.
Feature Summary
- Fault protected RS-485 bus pins withstand up to ±60V
- Extended common mode range of ±25V exceeds standard requirements
- Full fail-safe receiver design ensures logic high output when inputs are open, shorted, or idle
Applications
- Utility meters and automated meter reading systems
- PROFIBUS and field bus networks
- Security camera networks
- Industrial process control networks
Procurement Notes
Verify the specific ordering suffix against official Renesas documentation to confirm package type and tape/reel specifications. Confirm RoHS compliance status and moisture sensitivity level classifications prior to procurement. Ensure the component meets the required operating temperature range for the intended application environment.
Selection Notes
Select this model for applications requiring half-duplex communication with a maximum data rate of 250 kbps. It is suitable for designs needing robust fault protection and extended common mode voltage tolerance. Verify that the 8-lead SOIC package dimensions fit the available board space constraints.
Part Context
This component belongs to the ISL3149xE series of fault-protected, 5V powered differential transceivers. The series includes variants supporting different data rates and duplex configurations. The ISL31491EIBZ specifically offers a half-duplex interface optimized for lower speed industrial communication protocols.
Replacement Considerations
Consult the ISL32490E datasheet for exact replacement options if newer generation components are required. Verify pin compatibility and electrical parameter alignment before substituting.
