ST232ABDR

Product Overview

The ST232ABDR from STMicroelectronics is a surface-mount RS232 transceiver in a 16-SOIC package. It provides two drivers and two receivers for full-duplex serial communication, with a data rate of 400kbps and a supply voltage range of 4.5V to 5.5V. The device operates from -40°C to 85°C and has a receiver hysteresis of 500 mV.

Key Features

• RS232 transceiver with 2/2 driver and receiver channels
• Full-duplex operation at a data rate of 400kbps
• Supply voltage range of 4.5V to 5.5V
• Operating temperature range of -40°C to 85°C
• 16-SOIC surface-mount package, 0.154 in, 3.90mm width
• Receiver hysteresis of 500 mV

Applications

• Serial data exchange between a controller and a host device using RS232 signaling
• Full-duplex serial links between paired devices
• Equipment-to-equipment serial control and data transmission

Design & Procurement Notes

When selecting this part, verify that the system supply is within 4.5V to 5.5V and that the layout accommodates a 16-SOIC surface-mount package with 3.90mm body width. The 400kbps data rate and full-duplex 2/2 channel configuration should be matched to the required serial link speed and simultaneous transmit/receive needs. The 500 mV receiver hysteresis can be considered when evaluating receiver input behavior in the intended operating environment. Confirm that the application temperature range remains within -40°C to 85°C, and review board-level routing for the RS232 signals. The part uses a 16-SOIC surface-mount package, so assembly and rework processes should be compatible with that package type.