类型：经销商
电话： 0755-82566070
联系人：罗晓华
地址：广东深圳中航路新亚洲电子商城二期N2B065
∟ 快/超快/特快恢复二极管(1)∟ 瞬态(变)抑制二极管(2)∟ 肖特基二极管(2)∟ 其他二极管(2)
品牌:TI 型号:MAX3221CDBR 批号:08+ 封装:SSOP 营销方式:现货 产品性质:* 处理信号:模拟信号 制作工艺:半导体集成 导电类型:双*型 集成程度:小规模 规格尺寸:2（mm） 工作温度:-40~125（℃） 静态功耗:2（mW）
长期供应各国*集成IC\二三*: MAX3221CDBR
The MAX3221 consists of one line driver, one line receiver, and a dual charge-pump circuit with &plu*n;15-kV *D 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 *all external capacitors allow operation from a single 3-V to 5.5-V supply. These devices operate at data signaling rates up to 250 kbit/s 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 auto-powerdown 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. If FORCEOFF\ is set low and EN\ is high, both the driver and receiver are shut off, and the supply current is reduced to 1 µA. Disconnecting the serial port or turning off the peripheral drivers causes the auto-powerdown condition to occur. Auto-powerdown can be disabled when FORCEON and FORCEOFF\ are high. With auto-powerdown enabled, the device is activated automatically when a valid signal is applied to the receiver input. The INVALID\ output notifies the user if an RS-232 signal is present at the receiver input. INVALID\ is high (valid data) if the receiver input voltage is greater than 2.7 V or less than –2.7 V, or has been between –0.3 V and 0.3 V for less than 30 µs. INVALID\ is low (invalid data) if the receiver input voltage is between –0.3 V and 0.3 V for more than 30 µs. Refer to Figure 5 for receiver input levels.
友情链接： 深圳市元东发电子有限公司
