ST3232CDR

Product Overview

The ST3232CDR from STMicroelectronics is a full-duplex RS232 transceiver integrated circuit intended for serial communication interfaces. It provides two drivers and two receivers in a 16-SOIC surface-mount package. The device operates from a 3 V to 5.5 V supply and supports a data rate of 400 kbps. Its specified receiver hysteresis is 300 mV, and its operating temperature range is 0°C to 70°C. The supplied lifecycle status is Active.

Key Features

• RS232 protocol transceiver with full duplex operation.
• Two drivers and two receivers are included in the device.
• Supply voltage range is specified as 3 V to 5.5 V.
• Data rate is specified as 400 kbps.
• Receiver hysteresis is specified as 300 mV.
• Operating temperature range is 0°C to 70°C.
• Package is 16-SOIC, 0.154 in, 3.90 mm width, with surface-mount mounting.
• Supplier device package is 16-SO.

Applications

• RS232 serial links between embedded controllers and host computers.
• Serial communication interfaces in instrumentation and control equipment.
• Peripheral serial ports in consumer or office devices.
• Data acquisition systems requiring full-duplex serial transmit and receive paths.

Design & Procurement Notes

When selecting the ST3232CDR, confirm that the system supply falls within 3 V to 5.5 V and that the ambient environment remains within 0°C to 70°C. The 400 kbps data rate should be compared with the required serial data rate, and the full-duplex 2/2 channel count should match the number of transmit and receive lines needed. The 16-SOIC footprint is suitable for surface-mount assembly, and the 0.154 in, 3.90 mm width should be checked against the board layout. The specified 300 mV receiver hysteresis can be reviewed as part of receiver input threshold behavior in the target application. The Active lifecycle status should be considered for long-term design planning.