DS232AS

Drivers, Receivers, Transceivers Overview

The DS232AS is a dual RS-232 driver/receiver integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +5V power supply and utilizes on-board charge pumps to generate the required ±10V levels, eliminating the need for external ±12V supplies. The device features two drivers and two receivers compliant with EIA-232E and V.28/V.24 standards. It supports data rates up to 350 kbits/sec under load conditions. The component is housed in a 16-pin SOIC package with a 300-mil body width.

Drivers, Receivers, Transceivers Feature Summary

• Generates RS-232 voltage levels from a single +5V supply using internal charge pumps
• Fully compliant with EIA-232E and V.28/V.24 communication specifications
• Includes two TTL/CMOS compatible drivers and two protected receivers
• Operates with small external capacitors as low as 0.1 μF

Drivers, Receivers, Transceivers Applications

• EIA/TIA-232E communications interfaces
• V.28/V.24 serial communication links
• Applications requiring ±12V supply elimination

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package dimensions and temperature range. The 'AS' designation indicates a 16-pin SOIC package with a 300-mil body width. Confirm whether the '-N' suffix is required for industrial temperature operation (-40°C to +85°C), as standard versions typically cover 0°C to +70°C. Ensure capacitor values match datasheet recommendations for stable charge pump operation.

Drivers, Receivers, Transceivers Selection Notes

Select this component when a dual RS-232 transceiver is needed without external high-voltage supplies. Verify that the 16-pin SOIC (300-mil) footprint fits the PCB layout constraints. Check if the standard commercial temperature range meets application requirements or if the industrial variant is necessary. Ensure input logic levels are compatible with the system's TTL or CMOS voltage standards.

Drivers, Receivers, Transceivers Part Context

The DS232A series includes variants such as the DS232AR (150-mil SOIC) and DS232AE (20-pin TSSOP). The DS232AS specifically denotes the wider 300-mil SOIC package option within the same functional family. All variants share identical electrical characteristics and pin functions, differing only in physical package dimensions and thermal properties.

Drivers, Receivers, Transceivers Replacement Considerations

The datasheet explicitly lists compatibility with the LT1181A and MAX232A. These parts offer equivalent functionality and pinouts for direct replacement in existing designs.