SN65C3222E - 具有 +/-15kV ESD (HBM) 保护的 3V 至 5.5V 多通道 RS-232 线路驱动器/接收器

SN65C3222E是TI德州仪器公司的一款无产品，SN65C3222E是具有 +/-15kV ESD (HBM) 保护的 3V 至 5.5V 多通道 RS-232 线路驱动器/接收器，本站介绍了SN65C3222E的封装应用图解、特点和优点、功能等，并给出了与SN65C3222E相关的TI元器件型号供参考。

SN65C3222E - 具有 +/-15kV ESD (HBM) 保护的 3V 至 5.5V 多通道 RS-232 线路驱动器/接收器 - 无 - RS-232收发器 - 德州仪器

产品描述

产品特性

ESD Protection for RS-232 Bus Pins
- ±15-kV Human-Body Model (HBM)
- ±8-kV IEC 61000-4-2, Contact Discharge
- ±15-kV IEC 61000-4-2, Air-Gap Discharge
Meet or Exceed the Requirements of TIA/EIA-232-F and ITU v.28 Standards
Operate With 3-V to 5.5-V VCC Supply
Operate up to 1000 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
APPLICATIONS
- Battery-Powered Systems
- PDAs
- Notebooks
- Laptops
- Palmtop PCs
- Hand-Held Equipment

DESCRIPTION/ORDERING INFORMATION

The SN65C3222E and SN75C3222E consist 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 devices meet the requirements of TIA/EIA-232-F and provide 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 devices operate at typical data signaling rates up to 1000 kbit/s and are improved drop-in replacements for industry-popular '3222 two-driver, two-receiver functions.

The SN65C3222E and SN75C3222E 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 devices are 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.

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