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TRS3221 - 产品图解：
TRS3221-具有 +/-15-kV IEC ESD 保护的 3V 至 5.5V 单通道 RS-232 线路驱动器/接收器
TRS3221--RS-232收发器-接口
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TI产品 - TRS3221介绍

TRS3221 - 具有 +/-15-kV IEC ESD 保护的 3V 至 5.5V 单通道 RS-232 线路驱动器/接收器

TRS3221是TI德州仪器公司的一款无产品，TRS3221是具有 +/-15-kV IEC ESD 保护的 3V 至 5.5V 单通道 RS-232 线路驱动器/接收器，本站介绍了TRS3221的封装应用图解、特点和优点、功能等，并给出了与TRS3221相关的TI元器件型号供参考。

TRS3221 - 具有 +/-15-kV IEC ESD 保护的 3V 至 5.5V 单通道 RS-232 线路驱动器/接收器 - 无 - RS-232收发器 - 德州仪器

产品特性
  • RS-232 Bus-Pin ESD Protection Exceeds ±15 kV Using Human-Body Model (HBM)
  • 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 kbps
  • One Driver and One Receiver
  • Low Standby Current: 1-μA Typical
  • External Capacitors: 4 × 0.1 μF
  • Accepts 5-V Logic Input With 3.3-V Supply
  • Alternative High-Speed Pin-Compatible Device (1 Mbps)
    • SNx5C3221
  • Automatic Power-Down Feature Automatically Disables Drivers for Power Savings
产品应用
  • Battery-Powered, Hand-Held, and Portable Equipment
  • Notebooks, Subnotebooks, and Laptops
  • Digital Cameras
  • Mobile Phones and Wireless Devices
产品说明

The TRS3221 device consists of one line driver, one line receiver with dedicated enable pin, 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 one 3-V to 5.5-V supply. The TRS3221 device operates at data signaling rates up to 250 kbps and a maximum of 30-V/μs driver output slew rate.

Flexible control options for power management are available when the serial port is inactive. The automatic power-down feature functions when FORCEON is low and FORCEOFF is high. During this mode of operation, if the device does not sense a valid RS-232 signal on the receiver input, the driver output is disabled and the supply current is reduced to 1 μA. The INVALID output notifies the user if an RS-232 signal is present at the receiver input.

产品器件信息
PART NUMBERPACKAGEBODY SIZE (NOM)
TRS3221SSOP (32)6.20 mm x 5.30 mm
TSSOP (32)5.00 mm × 4.40 mm
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