MAX3042CSE

Overview

The MAX3042CSE is a quad RS-485/RS-422 transmitter manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single +5V supply and supports data transfer rates up to 20 Mbps. The device features ±10kV ESD protection and is housed in a 16-pin narrow SOIC package. It functions as a low-power upgrade to industry-standard drivers, offering hot-swap capability for power-up or hot insertion.

Feature Summary

• High-speed data transmission capability optimized for rates up to 20 Mbps
• Robust electrostatic discharge protection rated at ±10kV
• Hot-swap functionality allowing safe power-up or insertion into live circuits

Applications

• Digital data transmission over twisted-pair balanced lines
• Industrial communication networks requiring high ESD immunity
• Systems utilizing standard RS-485 or RS-422 protocols

Procurement Notes

Verify the specific suffix 'CSE' against official documentation to confirm the commercial temperature range and narrow SOIC packaging. Ensure compatibility with system voltage requirements of exactly 5V. Cross-reference pinouts with legacy SN75174 designs if used as a drop-in replacement.

Selection Notes

Select this component when high-speed data rates near 20 Mbps are required alongside strong ESD protection. It serves as a direct functional replacement for older industry-standard drivers like the SN75174. Verify that the narrow SOIC package fits the available PCB footprint constraints.

Part Context

This part belongs to the MAX3040–MAX3045 family of 5V quad transmitters designed for balanced line transmission. While the MAX3042B variant is explicitly cited for 20 Mbps performance in public datasheets, the MAX3042CSE shares the same core architecture and package type within this series.

Replacement Considerations

Publicly confirmed substitutes include the MAX3042BEWE+T. These parts share identical electrical characteristics and pinout configurations, facilitating direct interchangeability in existing designs.