Product details

Drivers per package 2 Receivers per package 2 Logic voltage (Min) (V) 3.3 Data rate (Max) (kbps) 250 Main supply voltage (Nom) (V) 3.3, 5 ESD HBM (kV) 15 Rating Catalog Operating temperature range (C) -40 to 85, 0 to 70 Vout (Typ) (V) 5.4
Drivers per package 2 Receivers per package 2 Logic voltage (Min) (V) 3.3 Data rate (Max) (kbps) 250 Main supply voltage (Nom) (V) 3.3, 5 ESD HBM (kV) 15 Rating Catalog Operating temperature range (C) -40 to 85, 0 to 70 Vout (Typ) (V) 5.4
SOIC (D) 16 59 mm² 9.9 x 6 SOIC (DW) 16 77 mm² 7.52 x 10.28 SSOP (DB) 16 33 mm² 5.3 x 6.2 SSOP (DB) 16 TSSOP (PW) 16 22 mm² 5 x 4.4 TSSOP (PW) 16 22 mm² 4.4 x 5 VQFN (RGT) 16 9 mm² 3 x 3
  • ESD protection for RS-232 bus pins
    • ±15 kV (HBM)
    • ±8 kV (IEC61000-4-2, Contact discharge)
    • ±15 kV (IEC61000-4-2, Air-gap discharge)
  • Meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards
  • Operates with 3-V to 5.5-V VCC supply
    • Interoperable with RS-232 down to 2.7-V VCC
  • Operates up to 250 kbps
  • Two drivers and two receivers
  • Low supply current: 300 µA (typical)
  • External capacitors: 4 × 0.1 µF
  • Accepts 5-V logic input with 3.3-V supply
  • Available in near chip-scale package (QFN-16, 3 mm x 3 mm), 85% smaller than SOIC-16
  • Pin compatible to alternative high-speed devices (1 Mbps)
    • SN65C3232E (–40°C to +85°C)
    • SN75C3232E (0°C to 70°C)
  • ESD protection for RS-232 bus pins
    • ±15 kV (HBM)
    • ±8 kV (IEC61000-4-2, Contact discharge)
    • ±15 kV (IEC61000-4-2, Air-gap discharge)
  • Meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards
  • Operates with 3-V to 5.5-V VCC supply
    • Interoperable with RS-232 down to 2.7-V VCC
  • Operates up to 250 kbps
  • Two drivers and two receivers
  • Low supply current: 300 µA (typical)
  • External capacitors: 4 × 0.1 µF
  • Accepts 5-V logic input with 3.3-V supply
  • Available in near chip-scale package (QFN-16, 3 mm x 3 mm), 85% smaller than SOIC-16
  • Pin compatible to alternative high-speed devices (1 Mbps)
    • SN65C3232E (–40°C to +85°C)
    • SN75C3232E (0°C to 70°C)

The TRS3232E device consists of two line drivers, two-line receivers, and a dual charge-pump circuit with ±15-kV 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 3-V to 5.5-V supply. The devices operate at data signaling rates up to 250 kbps and a maximum of 30-V/µs driver output slew rate.

The TRS3232E device consists of two line drivers, two-line receivers, and a dual charge-pump circuit with ±15-kV 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 3-V to 5.5-V supply. The devices operate at data signaling rates up to 250 kbps and a maximum of 30-V/µs driver output slew rate.

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Technical documentation

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Type Title Date
* Data sheet TRS3232E 3-V to 5.5-V Multichannel RS-232 Line Driver and Receiver With ±15-kV IEC ESD Protection In Small Package datasheet (Rev. D) PDF | HTML 22 Jun 2021
EVM User's guide TRS3232RGT EVM User's Guide PDF | HTML 17 Apr 2020
Technical article How the RS-232 transceiver’s regulated charge-pump circuitry works 28 Jun 2018
Technical article Active RS-232 power consumption: Why isn’t it in the data sheet? 03 Aug 2015
Application note AN-438 Low Power RS-232C Driver and Receiver in CMOS (Rev. B) 26 Apr 2013
Application note Understanding Power Requirements in RS-232 Applications (Rev. B) 26 Apr 2013
Application note Removing Ground Noise in Data Transmission Systems 05 Oct 2007
More literature RS-232 IEC ESD-Protected Devices From TI (Rev. A) 27 Jul 2007
Application note Interface Circuits for TIA/EIA-232-F (Rev. A) 19 Sep 2002
Application note Low-Voltage, Single-Supply 232-Standard Interface Solutions (Rev. A) 19 Sep 2000

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TRS3232RGTEVM — TRS3232EIRGT multichannel RS-232 line driver/receiver with ESD protection evaluation module

This evaluation module is used to evaluate the TRS3232E with RGT package. All signals are available through headers and test points. The charge pump output V+ and V- are accessible too. The board interfaces data and control CMOS logic levels on the terminal block to RS-232 levels supporting data (...)
Not available on TI.com
Simulation model

TRS3232E IBIS Model

SLLM453.ZIP (67 KB) - IBIS Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Simulation tool

TINA-TI — SPICE-based analog simulation program

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
User guide: PDF
Reference designs

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This reference design implements Class 0.5 single-phase energy measurement using standalone multi-channel analog-to-digital converters (ADC) to sample a shunt current sensor. With the combination of the shunt sensor and a compact magnetically immune power supply, the design provides protection (...)
Schematic: PDF
Reference designs

TIDA-010037 — High accuracy split-phase CT electricity meter reference design using standalone ADCs

This reference design implements Class 0.1 split-phase energy measurement using high-performance, multi-channel analog-to-digital converters (ADC). The independent ADC samples the output of current transformers (CT) at 8 kHz to measure the current and voltage of each leg of the AC mains. The (...)
Schematic: PDF
Reference designs

TIDA-060008 — Reference Design for Converting RS-232 Signaling to RS-485 Signaling

This reference design provides a circuit of converting RS-232 signaling to RS-485 signaling. This allows for long-distance communication, since the range supported by RS-232 is normally less than 50 feet while the range for RS-485's can exceed 1000 feet. The design implements bidirectional (...)
Schematic: PDF
Package Pins Download
SOIC (D) 16 View options
SOIC (DW) 16 View options
SSOP (DB) 16 View options
TSSOP (PW) 16 View options
VQFN (RGT) 16 View options

Ordering & quality

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