Texas Instruments TRS3232E Multichannel RS-232 Line Driver/Receiver

Texas Instruments TRS3232E Multichannel RS-232 Line Driver/Receiver consists of two line drivers, two-line receivers, and a dual charge-pump circuit with ±15kV IEC ESD protection pin to pin (serial-port connection pins, including GND). The device meets the requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and the serial-port connector. The charge pump and four small external capacitors allow operation from a single 3V to 5.5V supply. The Texas Instruments TRS3232E operates at data signaling rates up to 250kbps and a maximum of 30V/µs driver output slew rate.

Features

  • ESD protection for RS-232 bus pins
    • ±15kV (HBM)
    • ±8kV (IEC61000-4-2, Contact discharge)
    • ±15kV (IEC61000-4-2, Air-gap discharge)
  • Meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards
  • Operates with 3V to 5.5V VCC supply
    • Interoperable with RS-232 down to 2.7V VCC
  • Operates up to 250kbps
  • Two drivers and two receivers
  • Low supply current: 300µA (typical)
  • External capacitors (4 × 0.1µF)
  • Accepts 5V logic input with 3.3V supply
  • Available in near chip-scale package (QFN-16, 3mm x 3mm), 85% smaller than SOIC-16
  • Pin compatible with alternative high-speed devices (1Mbps)

Applications

  • Industrial PCs
  • Wired networking
  • Datacenter and enterprise computing
  • Battery-powered systems
  • Notebooks
  • Palmtop PCs
  • Hand-held equipment

Functional Block Diagram

Block Diagram - Texas Instruments TRS3232E Multichannel RS-232 Line Driver/Receiver
Published: 2021-06-28 | Updated: 2022-03-11