ST3232ECDR

Drivers, Receivers, Transceivers Overview

The ST3232ECDR is a low-power RS-232 transceiver from the ST3232EC series, manufactured by STMicroelectronics. It integrates two drivers and two receivers, supporting data rates up to 250 kbps while maintaining true RS-232 output levels. The device operates on a single 3 V to 5.5 V supply with a typical supply current of 300 μA. It features enhanced ESD protection rated at ±15 kV (human body model) and ±8 kV (IEC 1000-4-2 contact discharge). The IC utilizes a proprietary low-dropout transmitter stage and requires only four 0.1 μF external capacitors for its dual charge pump. It is housed in an SOIC-16 package.

Drivers, Receivers, Transceivers Feature Summary

• Enhanced electrostatic discharge protection for RS-232 I/O pins ensures robustness against high-voltage static events.
• Low power consumption design allows operation from a single 3 V to 5.5 V supply with minimal current draw.
• Integrated dual charge pump generates required voltage swings using only small standard external capacitors.

Drivers, Receivers, Transceivers Applications

• Portable battery-powered equipment requiring low standby current
• Industrial control systems needing reliable serial communication
• Handheld terminals and mobile devices

Drivers, Receivers, Transceivers Procurement Notes

Verify the complete part number including the suffix to confirm the specific tape-and-reel packaging configuration. Ensure the order matches the exact manufacturer designation to avoid discrepancies in component specifications or physical dimensions during integration.

Drivers, Receivers, Transceivers Selection Notes

Select this component when designing circuits that require RS-232 connectivity with strict power constraints. It is suitable for applications where space is limited due to the small capacitor requirements and offers superior noise immunity through its high ESD ratings compared to standard counterparts.

Drivers, Receivers, Transceivers Part Context

This part belongs to the ST3232EC family of RS-232 interface integrated circuits. The 'ECDR' suffix typically denotes the SOIC-16 surface-mount package variant with reel packaging, distinguishing it from other pin-out or package options within the same functional series.

Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include other STMicroelectronics RS-232 transceivers with similar pinouts and electrical characteristics, such as the ST3232EC or ST3232E, provided they match the required package type and performance specifications.