TRS3232E

ACTIVE

3- to 5.5-V dual channel 250kbps RS-232 line driver/receiver with +/-15-kV IEC-ESD protection

Product details

Drivers per package 2 Receivers per package 2 Logic voltage (min) (V) 3.3 Data rate (max) (Mbps) 0.25 Main supply voltage (nom) (V) 3.3, 5 ESD HBM (kV) 15 Rating Catalog Operating temperature range (°C) -40 to 85 Vout (typ) (V) 5.4
Drivers per package 2 Receivers per package 2 Logic voltage (min) (V) 3.3 Data rate (max) (Mbps) 0.25 Main supply voltage (nom) (V) 3.3, 5 ESD HBM (kV) 15 Rating Catalog Operating temperature range (°C) -40 to 85 Vout (typ) (V) 5.4
SOIC (D) 16 59.4 mm² 9.9 x 6 SOIC (DW) 16 106.09 mm² 10.3 x 10.3 SOT-23-THN (DYY) 16 8.4 mm² 4.2 x 2 SSOP (DB) 16 48.36 mm² 6.2 x 7.8 TSSOP (PW) 16 32 mm² 5 x 6.4 VQFN (RGT) 16 9 mm² 3 x 3
  • 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 to alternative high-speed devices (1Mbps)
    • SN65C3232E (–40°C to +85°C)
    • SN75C3232E (0°C to 70°C)
  • 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 to alternative high-speed devices (1Mbps)
    • 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 ±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 devices operate at data signaling rates up to 250kbps and a maximum of 30V/µs driver output slew rate.

The TRS3232E device 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 devices operate at data signaling rates up to 250kbps and a maximum of 30V/µs driver output slew rate.

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Technical documentation

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Type Title Date
* Data sheet TRS3232E 3V to 5.5V Multichannel RS-232 Line Driver and Receiver With ±15kV IEC ESD Protection In Small Package datasheet (Rev. E) PDF | HTML 13 Dec 2024
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 PDF | HTML 28 Jun 2018
Technical article Active RS-232 power consumption: Why isn’t it in the data sheet? PDF | HTML 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

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