MAX3237E中文资料具有 +/-15kV IEC-ESD 保护的 3V 至 5.5V 多通道 1Mbps RS-232 线路驱动器/接收器数据手册TI规格书

描述 Description

The MAX3237E consists of five line drivers, three 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. This device operates at data signaling rates of 250 kbit/s in normal operating mode (MBAUD = GND) and 1Mbit/s when MBAUD = VCC. The driver output slew rate is a maximum of 30 V/µs. The MAX3237E transmitters are disabled and the outputs are forced into high-impedance state when the device is in shutdown mode (SHDN = GND) and the supply current falls to less than 1 µA. Also, during shutdown, 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. ROUT1B remains active all the time, regardless of the EN and SHDN condition. The MAX3237EC is characterized for operation from 0°C to 70°C. The MAX3237EI is characterized for operation from –40°C to 85°C.

特性 Features

• 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 From 250 kbits/s to 1 Mbit/s
• Low Standby Current . . . 1 µA Typical
• External Capacitors . . . 4 × 0.1 µF
• Accepts 5-V Logic Input With 3.3-V Supply
• Designed to Be Interchangeable With Maxim MAX3237E
• Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
• ESD Protection for RS-232 I/O Pins
• ±15 kV – Human-Body Model (HBM)
• ±8 kV – IEC61000-4-2, Contact Discharge
• ±15 kV – IEC61000-4-2, Air-Gap Discharge

• APPLICATIONS
• Battery-Powered, Hand-Held, and Portable Equipment
• PDAs and Palmtop PCs
• Notebooks, Sub-Notebooks, and Laptops
• Digital Cameras
• Mobile Phones and Wireless Devices

简介

MAX3237E属于集成电路（IC）的驱动器接收器收发器。由TI制造生产的MAX3237E驱动器，接收器，收发器该系列产品的主要功能是提供必需的硬件资源，以通过延长电缆或印制线进行通信。确切的功能会因所采用的通信协议而异，可能包括诸如瞬态抑制之类的功能，这些功能对于通信用途可能并非绝对必要，但对于可能的使用环境却是明智之选。