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TRS3243
  • TRS3243
  • TRS3243
  • TRS3243
  • TRS3243

TRS3243

ACTIVE

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

Texas Instruments TRS3243 Product Info

1 April 2026 0

Parameters

Drivers per package

3

Receivers per package

5

Logic voltage (min) (V)

3.3

Data rate (max) (Mbps)

0.25

Main supply voltage (nom) (V)

3.3, 5

Features

Auto-Powerdown

ESD HBM (kV)

15

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Vout (typ) (V)

5.4

Package

SSOP (DB)-28-79.56 mm² 10.2 x 7.8

Features

  • Operates with 3-V to 5.5-V VCC supply
  • Single-chip and single-supply interface for IBM PC/AT™ serial port
  • RS-232 bus-pin ESD protection of ±15 kV using human-body model (HBM)
  • Meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards
  • Three drivers and five receivers
  • Operates up to 250 kbps
  • Low active current: 300-µA typical
  • Low standby current: 1-µA typical
  • External capacitors: 4 × 0.1 µF
  • Accepts 5-V logic input with 3.3-V supply
  • Always-active noninverting receiver output (ROUT2B)
  • Operating temperature
    • TRS3243C: 0°C to 70°C
    • TRS3243I: –40°C to 85°C
  • Serial-mouse driveability
  • Automatic power-down feature to disable driver outputs when no valid RS-232 signal is sensed
  • Operates with 3-V to 5.5-V VCC supply
  • Single-chip and single-supply interface for IBM PC/AT™ serial port
  • RS-232 bus-pin ESD protection of ±15 kV using human-body model (HBM)
  • Meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards
  • Three drivers and five receivers
  • Operates up to 250 kbps
  • Low active current: 300-µA typical
  • Low standby current: 1-µA typical
  • External capacitors: 4 × 0.1 µF
  • Accepts 5-V logic input with 3.3-V supply
  • Always-active noninverting receiver output (ROUT2B)
  • Operating temperature
    • TRS3243C: 0°C to 70°C
    • TRS3243I: –40°C to 85°C
  • Serial-mouse driveability
  • Automatic power-down feature to disable driver outputs when no valid RS-232 signal is sensed

Description

The TRS3243 device consists of three line drivers, and five line receivers, which is ideal for DE-9 DTE interface. A ±15-kV ESD (HBM) protection pin-to-pin (serial-port connection pins, including GND). Flexible power features save power automatically. Special outputs ROUT2B and INVALID are always enabled to allow checking for ring indicator and valid RS232 input.

The TRS3243 device consists of three line drivers, and five line receivers, which is ideal for DE-9 DTE interface. A ±15-kV ESD (HBM) protection pin-to-pin (serial-port connection pins, including GND). Flexible power features save power automatically. Special outputs ROUT2B and INVALID are always enabled to allow checking for ring indicator and valid RS232 input.

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