MAX3316EUP+

Overview

The MAX3316EUP+ is a dual RS-232 transceiver from the MAX3316–MAX3319 family, manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single +2.25V to +3.0V supply and utilizes a proprietary low-dropout transmitter output stage with a dual-charge pump to generate internal voltage rails. The device supports data rates up to 460kbps and requires only four 0.1µF capacitors for operation. It features two drivers and two receivers in full-duplex configuration. Operating supply current is typically 300µA, while shutdown current reaches 1µA. The component is housed in a 20-pin TSSOP package and functions within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Proprietary low-dropout transmitter output stage enables RS-232-compatible performance at low voltages
• Dual-charge pump architecture generates required internal voltages using minimal external components
• Guaranteed high-speed data transmission capability up to 460kbps under worst-case loading conditions
• Low-power shutdown mode reduces supply current to 1µA when transmitters are inactive

Applications

• Palmtop Computers
• Hand-Held Instruments
• Cellular Phones
• GPS Receivers
• Handy Terminals

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm exact package type, temperature range, and lead-free status. Ensure compatibility with existing BIOS or operating system configurations if utilizing automatic power management features. Cross-reference the part number with authorized distributors to confirm availability and authenticity before procurement.

Selection Notes

Select this component for applications requiring RS-232 communication in space-constrained, battery-powered devices. The 20-pin TSSOP package suits designs needing two independent channels. Consider the MAX3317 variant if manual shutdown control via the SHDN pin is preferred over automatic detection. Verify that the application load does not exceed the specified 3kΩ parallel with 1000pF worst-case condition for guaranteed timing.

Part Context

The MAX3316EUP+ belongs to the MAX3316–MAX3319 series of 2.5V RS-232 transceivers. This family shares a common architectural foundation featuring dual charge pumps and low-voltage operation. The 'E' suffix denotes the extended industrial temperature range (-40°C to +85°C), while 'UP' indicates the 20-pin TSSOP package. The '+' suffix signifies compliance with RoHS standards.

Replacement Considerations

The MAX3316CAE serves as a commercial grade alternative in a 16-pin SSOP package. The MAX3317EUP offers identical electrical characteristics but includes a dedicated SHDN pin for manual shutdown control instead of AutoShutdown Plus logic.