SN65C3221E - Texas Instruments

SN65C3221E 3-V to 5.5-V Single-channel RS-232 1-Mbits Line Driver/Receiver

The SN65C3221E and SN75C3221E consist of one line driver, one line receiver, and a dual charge-pump circuit with ±15-kV IEC ESD protection pin to pin (serial-port connection pins, including GND). These devices provide the electrical interface between an asynchronous communication controller and the serial-port connector. The charge pump and four small extern.

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
• Operate with 3-V to 5.5-V VCC supply
• Operate up to 1 Mbit/s
• Low Standby Current . . . 1 μA Typical
• External capacitors . . . 4 × 0.1 μF
• Accepts 5-V logic input with 3.3-V supply
• RS-232 Bus-pin esd protection exceeds ±15 kv using human-body model (HBM)
• Auto-powerdown feature automatically disables drivers for power savings 2 Applications
• Industrial PCs
• Wired networking
• Data center and enterprise computing
• Battery-powered systems .