MAX3292CPD+

Overview

The MAX3292CPD+ is a full-duplex RS-485/RS-422 transceiver featuring driver preemphasis circuitry to reduce intersymbol interference. It operates from a single +5V supply and supports data rates up to 10Mbps, programmable via an external resistor on the PSET pin. The device includes a low-current shutdown mode reducing supply current to 100nA. It offers a fail-safe receiver input that guarantees a logic-high output when the input is open-circuit. With a 1/4-unit-load receiver impedance, it allows up to 128 transceivers on the bus. The component is housed in a 14-pin Plastic DIP package and is specified for operation within the commercial temperature range of 0°C to +70°C.

Feature Summary

• Driver preemphasis circuitry extends reliable communication distance and increases data rate by mitigating intersymbol interference caused by long cables.
• Programmable data rates up to 10Mbps achieved through a single external resistor connected to the PSET pin.
• Fail-safe receiver input ensures a logic-high output state if the differential input terminals are left open-circuit.
• Low-current shutdown mode significantly reduces power consumption by lowering supply current to 100nA.

Applications

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

Procurement Notes

Verify the specific suffix CPD indicates a 14-pin Plastic DIP package with a commercial operating temperature range of 0°C to +70°C. Confirm lead-free status aligns with RoHS compliance requirements for your assembly process. Ensure the ordering code matches the exact package style and thermal grade needed for the target environment.

Selection Notes

Select the MAX3292 over the MAX3291 when flexible preemphasis timing is required for varying baud rates. Use the external resistor network on the PSET pin to optimize signal integrity for specific cable lengths and data speeds. This part is suitable for designs needing full-duplex operation with high node density on the bus.

Part Context

This component belongs to the MAX3291/MAX3292 family of high-speed RS-485/RS-422 transceivers. It shares pin compatibility with legacy devices such as the SN75180, MAX489, MAX491, MAX3080, MAX3083, MAX3086, and MAX1482, facilitating direct upgrades in existing designs requiring enhanced performance over longer distances.

Replacement Considerations

Pin-compatible replacements include MAX3291CSD+, MAX3291CPD+, MAX3292CSD+, MAX3292ESD+, and MAX3292EPD+. Verify that substitute parts match the required package type and temperature range specifications before integration.