MAX3317ECAP+

Overview

The MAX3317ECAP+ 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. The device features two drivers and two receivers (2-Tx/2-Rx) and supports data rates up to 460kbps. It includes a 1µA shutdown mode activated by driving the SHDN pin low, while receivers remain active for external monitoring. The component is housed in a 20-pin SSOP package and is rated for an operating temperature range of 0°C to +70°C.

Feature Summary

• Proprietary low-dropout transmitter output stage enabling RS-232-compatible performance at low voltages
• 1µA low-power shutdown mode with active receivers for peripheral monitoring
• Guaranteed 460kbps data rate with only four 0.1µF capacitors required
• READY logic-level output indicating charge pump regulation and transmission readiness

Applications

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

Procurement Notes

Verify the specific suffix 'CAP+' against official documentation to confirm the 20-pin SSOP package and commercial temperature range. Confirm RoHS compliance status as indicated by the '+' suffix. Check current availability as this component may be subject to discontinuation or limited stock depending on the manufacturer's lifecycle status.

Selection Notes

Select the MAX3317ECAP+ when a 2-channel RS-232 interface is required within a strict low-voltage power budget. Ensure the application environment remains within the 0°C to +70°C commercial temperature range. Verify that the system design can accommodate the requirement for four 0.1µF capacitors for the internal charge pumps.

Part Context

This component belongs to the MAX3316–MAX3319 series of 2.5V RS-232 transceivers. The MAX3317 variant specifically provides two drivers and two receivers with manual shutdown control via the SHDN pin, distinguishing it from the AutoShutdown Plus variants found in the MAX3318 and MAX3319 models.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.