MAX3292CSD+T

Overview

The MAX3292CSD+T is a full-duplex RS-485/RS-422 transceiver featuring driver preemphasis circuitry to extend communication distance and data rates by reducing intersymbol interference. It operates from a single +5V supply with a maximum data rate of 10Mbps, programmable via an external resistor. The device includes a low-current shutdown mode drawing 100nA, fail-safe receiver inputs guaranteeing a logic-high output when open, and supports up to 128 transceivers on the bus due to its 1/4-unit-load input impedance. It is housed in a 14-pin SO package.

Feature Summary

• Driver preemphasis circuitry reduces intersymbol interference for high-speed, long-distance communication
• Fail-safe receiver input guarantees a logic-high output if the differential input is open circuit
• Low-current shutdown mode significantly reduces power consumption
• High noise immunity with a wide common-mode input voltage range

Applications

• Long-distance, high-speed RS-485/RS-422 communications
• Telecommunications systems
• Industrial-control local area networks

Procurement Notes

Verify the component matches the specific suffix requirements for tape-and-reel packaging and temperature grade. Confirm that the ordering information aligns with current manufacturer specifications to ensure compatibility with existing designs.

Selection Notes

Select this model for applications requiring extended cable lengths or higher data rates where standard transceivers suffer from intersymbol interference. Ensure the design accommodates the necessary external resistor for programming the preemphasis interval according to the target baud rate.

Part Context

This component belongs to the MAX3291/MAX3292 family of high-speed RS-485/RS-422 transceivers. While pin-compatible with legacy devices like the '75180, it offers superior performance through integrated preemphasis technology designed specifically for demanding industrial and telecommunications environments.

Replacement Considerations

The MAX3291CSD+T serves as a direct functional replacement within the same series, differing primarily in fixed versus programmable preemphasis settings.