MAX3311ECUB

Overview

The MAX3311ECUB is a low-power, single-channel RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates from a +5V supply and supports data rates up to 460kbps. The device features ±15kV ESD protection on transmitter outputs and receiver inputs using the Human Body Model. It incorporates a single inverting charge pump requiring only three 0.1µF capacitors. Key electrical parameters include a supply voltage range of 4.5V to 5.5V, typical supply current of 250µA, and shutdown current of 1µA. The component is housed in a 10-pin µMAX package and is rated for an operating temperature range of 0°C to +70°C.

Feature Summary

• Integrated ±15kV ESD protection on I/O pins
• Ultra-low power consumption with 1µA shutdown mode
• Single charge-pump design requiring minimal external components
• Receiver remains active during shutdown state

Applications

• Digital Cameras
• GPS Systems
• Point-of-Sale (POS) Terminals
• Telecommunications Equipment
• Set-Top Boxes

Procurement Notes

Verify the specific ordering suffix 'CUB' against official manufacturer documentation to confirm the commercial temperature range (0°C to +70°C). Ensure compatibility with the 10-pin µMAX package dimensions. Cross-reference the part number with authorized distributors to validate authenticity and traceability before procurement.

Selection Notes

Select this component when a single full-duplex RS-232 channel is required within a compact footprint. The MAX3311ECUB is suitable for applications needing robust ESD protection and ultra-low standby power. Compare against the MAX3313E variant if an INVALID output signal for cable detection is necessary instead of the shutdown control pin.

Part Context

This device belongs to the MAX3311E/MAX3313E family of low-power RS-232 transceivers. It shares the same core architecture as the industrial-grade MAX3311EEUB but is specified for commercial temperature ranges. The family utilizes a proprietary low-dropout transmitter stage to ensure RS-232 compatibility from a single +5V supply.

Replacement Considerations

The MAX3311EEUB serves as the industrial-grade equivalent with extended temperature support. For systems requiring an INVALID output feature, the MAX3313ECUB is the functional alternative within the same package.