SN75C3232DW

Drivers, Receivers, Transceivers Overview

The SN75C3232DW is a dual RS-232 line driver and receiver manufactured by Texas Instruments, housed in a 16-pin DW (SOIC) package. It operates from a single 3-V to 5.5-V supply with a typical supply current of 300 μA. The device supports data rates up to 1 Mbit/s and includes a dual charge-pump circuit requiring four external capacitors. It provides ±15-kV ESD protection on serial-port connection pins and accepts 5-V logic inputs when powered by a 3.3-V supply.

Drivers, Receivers, Transceivers Feature Summary

• Dual charge-pump circuit enables operation from a single low-voltage supply using small external capacitors.
• Integrated bus-pin ESD protection exceeding ±15 kV for serial-port connection pins.
• Compatible with 5-V logic inputs while operating from a 3.3-V power supply.

Drivers, Receivers, Transceivers Applications

• Industrial PCs
• Wired networking
• Data center and enterprise computing

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest Package Option Addendum to confirm status, material type, and lead finish. Ensure the selected variant matches the required thermal performance and moisture sensitivity level for the intended assembly process.

Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring full-duplex RS-232 communication with low standby power consumption. Confirm that the system voltage falls within the 3-V to 5.5-V range and that the PCB layout allows for short traces connecting the charge-pump capacitors to minimize noise.

Drivers, Receivers, Transceivers Part Context

This part belongs to the SNx5C3232 family of multichannel RS-232 transceivers. It shares functional specifications with the SN65C3232, differing primarily in the guaranteed operating temperature range. The DW package designation indicates a wide-body SOIC footprint suitable for standard surface-mount assembly.

Drivers, Receivers, Transceivers Replacement Considerations

SN75C3232DWR

Drivers, Receivers, Transceivers FAQ

What is the maximum recommended bit rate for reliable operation?

The datasheet specifies a maximum recommended bit rate of 250 kbit/s for optimal performance, although the device can operate at speeds up to 1 Mbit/s under specific load conditions.

How does the device behave when VCC is unpowered?

When VCC is 0 V, the device can be safely connected to an active remote RS-232 device without causing damage or interference.