MAX3316CUP

Overview

The MAX3316CUP is a low-power, RS-232-compatible transceiver manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates from a single +2.25V to +3.0V supply and features two drivers and two receivers for full-duplex communication. The device supports data rates up to 460kbps with a propagation delay of 0.175µs. It requires only four 0.1µF capacitors for external charge pump operation. The component is housed in a TSSOP-20 package and is rated for an operating temperature range of -40°C to +85°C.

Feature Summary

• Proprietary low-dropout transmitter output stage enables RS-232 compatibility at low voltages
• Minimal external component requirement using only four 0.1µF capacitors
• Full-duplex operation with integrated dual charge pumps

Applications

• Portable battery-powered equipment requiring RS-232 connectivity
• Industrial control systems with limited power budgets
• Communication interfaces in space-constrained embedded designs

Procurement Notes

Verify the specific suffix 'CUP' against official Analog Devices documentation to confirm package type and temperature grade. Ensure compatibility with system voltage requirements of 2.25V to 3.0V. Confirm that the TSSOP-20 footprint matches the PCB layout specifications before procurement.

Selection Notes

Select this component when a single-supply RS-232 solution is needed with minimal external capacitance. It is suitable for applications where power consumption is critical but shutdown features are not required, as this variant lacks AutoShutdown Plus. Compare against MAX3317-MAX3319 if lower quiescent current or automatic shutdown functionality is necessary for the design.

Part Context

The MAX3316CUP belongs to the MAX3316–MAX3319 family of low-power RS-232 transceivers. This series is designed to provide standard RS-232 performance from a single low-voltage supply. The CUP designation specifically indicates the TSSOP-20 package and commercial/industrial temperature range variants within the broader product line.

Replacement Considerations

Direct functional substitutes within the same family include MAX3317CUP, MAX3318CUP, and MAX3319CUP. Note that MAX3318/MAX3319 include AutoShutdown Plus for lower power, while MAX3317 has one driver/receiver pair. Verify pinout compatibility across these alternatives.