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SN65C3232

TISN65C3232

Texas Instruments
TI RS-232 transceiver family compatible with single-supply operation and common UART interfaces.
Active12,127 in stock
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Overview

The Texas Instruments SN65C3232 is a full-duplex RS-232 transceiver designed for single-supply operations between 3V and 5.5V. It facilitates robust serial communication at data rates up to 1Mbps, making it suitable for a variety of industrial and embedded applications. The device integrates charge pumps to generate RS-232 voltage levels from a single supply, simplifying power supply requirements.

Why Choose This Part

This transceiver offers robust ESD protection of up to +/-15-kV HBM on its RS-232 pins, enhancing system reliability in harsh environments. Its single 3V to 5.5V supply operation simplifies power management compared to older dual-supply RS-232 solutions. The 300 mV receiver hysteresis improves noise immunity, ensuring reliable data reception over longer cables.

Applications

Industrial Control Systems
Used in industrial environments for communication between controllers, sensors, and actuators via RS-232, benefiting from its wide operating temperature range and ESD protection.
Point-of-Sale (POS) Systems
Enables reliable serial data exchange between POS terminals and peripherals like barcode scanners, receipt printers, and payment card readers.
Battery-Powered Equipment
Its low quiescent current (300 uA typical) and single-supply operation make it suitable for power-sensitive applications such as portable data terminals and medical devices.
Networking Equipment
Provides RS-232 interfaces for configuration and diagnostic ports on routers, switches, and other network infrastructure components.
Building Automation
Integrates into building management systems for controlling various devices and subsystems that rely on RS-232 for communication.

Key Specifications

Type Transceiver
Duplex Full
Protocol RS232
Data Rate 1Mbps
Mounting Type Surface Mount
Package / Case 16-SOIC (0.154", 3.90mm Width)
Voltage - Supply 3V ~ 5.5V
Receiver Hysteresis 300 mV
Operating Temperature -40degC ~ 85degC
Supplier Device Package 16-SOIC
Number of Drivers/Receivers 2/2

Getting Started

To get started with the SN65C3232, connect the VCC pin to a 3V to 5.5V supply and the GND pin to ground. Interface the logic-level (TTL/CMOS) side to a microcontroller's UART TX/RX pins. Connect the RS-232 side to a standard DB9 or similar connector. Proper decoupling capacitors (typically 0.1uF to 1uF) should be placed near the VCC pin and charge pump pins (C1+, C1-, C2+, C2-).

SN65C3232 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Package Stock
SN65C3232 (this part) SOIC-16 12,127
SN65C3232DR SOIC-16 8,729
SN65C3232PWR TSSOP-16 3,921
Also available as: SN65C3232DGN, SN65C3232DBVR
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