TRS3221E - Texas Instruments

TRS3221E 3-V TO 5.5-V Single-Channel RS-232 Line Driver/Receiver

The TRS3221E is a single driver, single receiver RS-232 solution operating from a single VCC supply. The RS-232 pins provide IEC G1000-4-2 ESD protection. 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 exter.

Features

• ESD Protection for RS-232 Pins
  – ±15-kV Human-Body Model (HBM)
  – ±8 kV (IEC 61000-4-2, contact discharge)
  – ±15 kV (IEC 61000-4-2, 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
• Operates up to 250 kbit/s
• One driver and one receiver
• Near chip-scale package, 16-pin VQFN (RGT, 82% smaller than TSSOP package)
• Low standby current: 1 μA Typical
• External capacitors: 4 × 0.1 μF
• Accepts 5-V logic input with 3.3-V supply
• Alternative high-speed pin-compatible device (1 Mbit/s)
  – TRSF3221E
• Auto-power.