MAX3221EIDBRG4

3 V至5.5 V单路RS - 232线路驱动器/接收器15千伏IEC ESD保护 3-V TO 5.5-V SINGLE-CHANNEL RS-232 LINE DRIVER/RECEIVER WITH 15-kV IEC ESD PROTECTION

DESCRIPON

The MAX3221E 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 external capacitors allow operation from a single 3-V to 5.5-V supply. These devices operate at data signaling rates up to 250 kbit/s and a maximum of 30-V/µs driver output slew rate.

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

• Low Standby Current . . . 1 µA Typ

• 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

– SN75C3221E and SN65C3221E

• Auto-Powerdown Feature Automatically Disables Drivers for Power Savings

APPLICATIONS

• Battery-Powered, Hand-Held, and Portable Equipment

• PDAs and Palmtop PCs

• Notebooks, Subnotebooks, and Laptops

• Digital Cameras

• Mobile Phones and Wireless Devices