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MAX3222E - 具有 +/-15kV ESD 保护的 3V 至 5V 多通道 RS-232 线路驱动器/接收器
MAX3222E是TI德州仪器公司的一款无产品,MAX3222E是具有 +/-15kV ESD 保护的 3V 至 5V 多通道 RS-232 线路驱动器/接收器,本站介绍了MAX3222E的封装应用图解、特点和优点、功能等,并给出了与MAX3222E相关的TI元器件型号供参考。
MAX3222E - 具有 +/-15kV ESD 保护的 3V 至 5V 多通道 RS-232 线路驱动器/接收器 - 无 - RS-232收发器 - 德州仪器
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 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. The device operates at typical data signaling rates up to 500 kbit/s and a maximum of 30-V/µs driver output slew rate.
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.
- 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 × 0.1 µF
- Accepts 5-V Logic Input With 3.3-V Supply
- Alternative High-Speed Pin-Compatible Device (1 Mbit/s) for SNx5C3222E
- APPLICATIONS
- Battery-Powered Systems
- PDAs
- Notebooks
- Laptops
- Palmtop PCs
- Hand-Held Equipment
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