MAX3032ECUE+TG071

Overview

The MAX3032ECUE+TG071 is a quad RS-422 transmitter from the MAX3030E–MAX3033E family, designed for digital data transmission over twisted-pair balanced lines. It operates on a single +3V to +3.6V supply with a typical static current of 100µA. The device supports a guaranteed maximum data rate of 20Mbps and features ±15kV ESD protection on outputs. It utilizes a 16-pin TSSOP package and includes hot-swap capability to prevent false transitions during power-up. The part meets TIA/EIA-422-B and ITU-T V.11 standards.

Feature Summary

• Hot-swap functionality prevents false transitions on data cables during board insertion or power-up sequences.
• Dual enable inputs (EN1&2 and EN3&4) allow independent control of transmitter pairs for flexible system integration.
• Enhanced electrostatic discharge protection provides ±15kV tolerance on driver outputs using the Human Body Model.
• Low-power design ensures minimal static current consumption, making it suitable for battery-powered applications.

Applications

• Telecom backplanes
• V.11/X.21 interface systems
• Industrial PLCs
• Motor control circuits

Procurement Notes

Verify the specific suffix 'TG071' against official manufacturer documentation to confirm tape-and-reel packaging or lead-free status. Ensure the component matches the 16-pin TSSOP footprint and industrial temperature range specifications required for your design environment before finalizing orders.

Selection Notes

Select this component when dual independent enable controls are required for RS-422 transmitters. It serves as a pin-compatible upgrade to industry-standard SN75174 devices. Choose this part over slew-rate-limited variants if high-speed data rates up to 20Mbps are necessary for parallel data driving.

Part Context

This component belongs to the MAX3030E–MAX3033E family of quad RS-422 transmitters. The MAX3032E variant specifically distinguishes itself by offering dual enable inputs compatible with the SN75174 pinout, whereas other family members may use global enable configurations.

Replacement Considerations

The MAX3032EEUE+ offers an extended temperature range (-40°C to +85°C). For legacy compatibility, consider the SN75174, though it lacks integrated ESD protection and hot-swap features.

FAQ

How does the MAX3032E differ from the MAX3030E regarding enable pins?

The MAX3032E features dual enable inputs (EN1&2 and EN3&4) that independently control transmitter pairs, providing flexibility similar to the SN75174. In contrast, the MAX3030E uses global enable inputs (EN and EN_) that control all four transmitters simultaneously.

What is the purpose of the hot-swap feature in this device?

The hot-swap feature holds the enable inputs in a disabled state during power-up or board insertion. This prevents leakage currents and parasitic capacitances from causing false transitions on the data cable, ensuring system stability.

Does this device support both RS-422 and V.11 standards?

Yes, the MAX3032E is designed to meet the requirements of both TIA/EIA-422-B (RS-422) and ITU-T V.11 standards for digital data transmission over balanced lines.