MAX3222EIPWR

The MAX3222E 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). The MAX3222E can be placed in the power-down mode by setting the power-down (PWRDOWN) input low, which draws only 1 μA from the power supply. When the device is powered down, the receivers remain active while the drivers are placed in the high-impedance state. Also, during power down, the onboard charge pump is disabled; V+ is lowered to VCC, and V- is raised toward GND. Receiver outputs also can be placed in the high-impedance state by setting enable (EN) high.

Applications

• Battery-Powered Systems
• PDAs
• Notebooks Laptops
• Palmtop PCs Hand-Held Equipment

Key features

• ESD Protection for RS-232 Bus Pins: ±15-kV Human-Body Model (HBM), ±8-kV IEC61000-4-2, Contact Discharge, ±15-kV IEC61000-4-2, 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 500 kbit/s
• Two Drivers and Two Receivers
• Low Standby Current: 1 μA Typ
• External Capacitors: 4 x 0.1 μF
• Accepts 5-V Logic Input With 3.3-V Supply
• Alternative High-Speed Pin-Compatible Device (1 Mbit/s) for SNx5C3222E