Renesas Electronics 4-Channel Line Transmitter CMOS/TTL Bipolar 24-Pin QFN ISL32179EFRZ

Renesas Electronics ISL32179EFRZ is a high-performance 4-channel line transmitter designed for balanced communication according to the RS-422 standard. This device features CMOS/TTL output that provides a bipolar output polarity, ensuring reliable and noise-immune data transmission over differential lines. It is packaged in a compact 24-pin QFN surface mount package measuring 4 mm in length, 3.8 mm in width, and 1 mm in height, enabling efficient PCB space utilization.

The ISL32179EFRZ operates with a minimum supply voltage of 3 V and a maximum supply voltage of 5.5 V, suitable for a broad range of applications. The device offers a maximum propagation delay time of 8 ns at a load capacitance, enabling fast communication cycles. Its supply current of 800 μA keeps power consumption low, making it ideal for power-sensitive electronics.

The transmitter is specified to operate in harsh industrial environments with a wide operating temperature range from -40°C up to +125°C. It includes low output leakage currents of ±10 μA which minimize the load on the RS-422 bus for energy efficiency. This model supports user-selectable data rates and low shutdown supply current functionality, enhancing control over power management.

The device does not hold any automotive certifications but is designed for durable industrial use cases including embedded systems, RS-422 communication line drivers, industrial automation, and instrumentation where reliable and robust data transmission is critical.

Supports 4 communication channels for improved signal routing. CMOS/TTL output logic ensures compatibility with various logic families. Bipolar polarity and differential input/output enhance noise immunity. Compact 24-pin QFN surface mount package simplifies assembly.

Wide operating temperature range (-40°C to 125°C) suitable for industrial applications. Low power consumption with supply current of 800 μA. Maximum output current of 100 mA at high logic level ensures adequate driving capability.

Fast signal propagation with 8 ns maximum delay. Low output leakage current reduces bus loading to ±10 μA. User-selectable data rates for flexible operation.

This Renesas Electronics ISL32179EFRZ is ideal for use in industrial electronics, embedded communication systems, data acquisition, automation controls, and other professional electronic design applications requiring efficient and reliable RS-422 line driving functionality.

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