MAX3221 - 3V 至 5.5V 单通道 RS-232 线路驱动器/接收器

MAX3221是TI德州仪器公司的一款无产品，MAX3221是3V 至 5.5V 单通道 RS-232 线路驱动器/接收器，本站介绍了MAX3221的封装应用图解、特点和优点、功能等，并给出了与MAX3221相关的TI元器件型号供参考。

MAX3221 - 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 MAX3221 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 a single 3-V to 5.5-V supply. These devices operate 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 NUMBER	PACKAGE	BODY SIZE (NOM)
MAX3221xDB	SSOP (32)	6.20 mm × 5.30 mm
MAX3221xPW	TSSOP (32)	5.00 mm × 4.40 mm

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