SN75C3243PWR

Drivers, Receivers, Transceivers Overview

The SN75C3243PWR is a Texas Instruments RS-232 interface integrated circuit featuring three drivers and five receivers in a 28-pin TSSOP package. It operates on a single 3 V to 5.5 V supply with a typical quiescent current of 1 mA. The device supports full-duplex communication at data rates up to 1 Mb/s and includes an internal charge pump requiring only four external capacitors. It provides ±15 kV ESD protection on bus pins, ensuring robust performance in industrial environments while maintaining compatibility with standard RS-232 signaling levels.

Drivers, Receivers, Transceivers Feature Summary

• Integrates three line drivers and five line receivers for multi-channel serial communication
• Operates from a single 3-V to 5.5-V power supply using an internal charge pump
• Provides ±15-kV electrostatic discharge (ESD) protection on all RS-232 bus lines
• Features a shutdown mode that reduces power consumption for battery-operated systems

Drivers, Receivers, Transceivers Applications

• Battery-powered portable devices requiring low standby current
• Industrial control systems needing high ESD immunity
• Personal digital assistants and handheld computers
• Laptop and notebook computer serial port interfaces

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'PWR' corresponds to the 28-TSSOP package and commercial temperature range when sourcing. Confirm RoHS compliance status as per the latest manufacturer documentation. Ensure ordering quantities align with standard reel sizes if applicable. Cross-reference the datasheet revision date to confirm pinout and electrical characteristics match your design requirements before finalizing procurement.

Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring multiple independent RS-232 channels within a compact surface-mount footprint. It is suitable for applications where space constraints preclude larger packages like SOIC or SSOP. Consider the 1-Mb/s data rate capability against your system's baud rate requirements. Verify that the 3-V to 5.5-V operating voltage range matches your available power rails and logic levels.

Drivers, Receivers, Transceivers Part Context

This part belongs to the SNx5C3243 family of multichannel RS-232 transceivers. It shares functional similarities with the SN65C3243 but may differ in manufacturing specifications or regional availability. The PWR suffix denotes the plastic small-outline thin package variant. It serves as a direct replacement for older generation RS-232 chips in modern low-voltage designs.

Drivers, Receivers, Transceivers Replacement Considerations

SN75C3243DBR offers identical functionality in a 28-SSOP package. SN65C3243PWR is a functionally equivalent alternative within the same series. MAX3243CPWR provides similar 3/5 channel configuration in a 28-TSSOP package.