• Operates With 3-V to 5.5-V VCC Supply
• Operates up to 1 Mbit/s
• Low Supply Current . . . 300 µA Typ
• External Capacitors . . . 4 × 0.1 µF
• Accept 5-V Logic Input With 3.3-V Supply
• Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
• ESD Protection for RS-232 Pins
  • ±15-kV Human-Body Model (HBM)
  • ±15-kV IEC 61000-4-2 Air-Gap Discharge
  • ±8-kV IEC 61000-4-2 Contact Discharge
• APPLICATIONS
  • Battery-Powered Systems
  • PDAs
  • Notebooks
  • Laptops
  • Palmtop PCs
  • Hand-Held Equipment

DESCRIPTION/ORDERING INFORMATION

The TRSF3232E consists of two line drivers, two line receivers, and a dual charge-pump 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. The TRSF3232E operates at data signaling rates up to 1 Mbit/s and a driver output slew rate of 14 V/µs to 150 V/µs.

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