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SN75C3243 Datasheet 3-V To 5.5-V Multichannel RS-232 Compatible Line Driver/Receiver

Manufacturer: Texas Instruments

General Description

The SN65C3243 and SN75C3243 consist of three line drivers, five line receivers, and a dual chargepump circuit with ±15-kV ESD protection pin to pin (serial-port connection pins, including GND).

This device 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.

Overview

SN65C3243, SN75C3243 SLLS353I – JUNE 1999 – REVISED OCTOBER 2022 SNx5C3243 3-V To 5.

Key Features

  • Operates With 3-V to 5.5-V VCC Supply.
  • Always-Active Noninverting Receiver Output (ROUT2B).
  • Low Standby Current: 1 μA Typical.
  • External Capacitors: 4 × 0.1 μF.
  • Accepts 5-V Logic Input With 3.3-V Supply.
  • Inter-Operable With SN65C3238, SN75C3238.
  • Supports Operation From 250 kbit/s to 1 Mbit/s.
  • RS-232 Bus-Pin ESD Protection Exceeds ±15 kV Using Human-Body Model (HBM) 2.