ST3232CTR

Product Overview

The ST3232CTR from STMicroelectronics is a surface-mount RS232 transceiver in a 16-TSSOP package. It provides two drivers and two receivers for full-duplex serial communication, with a specified data rate of 400 kbps. The device operates from a 3 V to 5.5 V supply and is rated for an ambient operating temperature range of 0°C to 70°C. Receiver hysteresis is specified at 300 mV, supporting stable signal interpretation in RS232 interfaces.

Key Features

• RS232 protocol transceiver with full-duplex operation
• Two drivers and two receivers in a 16-TSSOP surface-mount package
• Supports a data rate of 400 kbps
• Supply voltage range from 3 V to 5.5 V
• Receiver hysteresis of 300 mV
• Operating temperature range from 0°C to 70°C

Applications

• RS232 serial links between embedded controllers and peripheral equipment
• Full-duplex serial port interfacing in surface-mount board designs
• 400 kbps data exchange over RS232-compatible serial interfaces

Design & Procurement Notes

When selecting the ST3232CTR, consider that its 16-TSSOP package and surface-mount mounting type require footprint and assembly compatibility with the target board. The 3 V to 5.5 V supply range should be checked against the available system supply, while the 0°C to 70°C operating temperature range defines the ambient conditions for normal use. The 2/2 full-duplex channel configuration and 400 kbps data rate should be matched to the required number of simultaneous transmit and receive paths and the needed serial throughput. The 300 mV receiver hysteresis is relevant when evaluating RS232 signal interpretation under noisy input conditions.