3 V至5.5 V单路RS - 232线路驱动器/接收器,具有± 15 kV ESD保护 3-V TO 5.5-V SINGLE-CHANNEL RS-232 LINE DRIVER/RECEIVER WITH ±15-kV ESD PROTECTION
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 A/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.
型号/品牌 | 代替类型 | 替代型号对比 |
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TRS3221IDBR TI 德州仪器 | 当前型号 | 当前型号 |
MAX3221ECPWR 德州仪器 | 类似代替 | TRS3221IDBR和MAX3221ECPWR的区别 |
MAX3221EIPWR 德州仪器 | 类似代替 | TRS3221IDBR和MAX3221EIPWR的区别 |
MAX3221EIPW 德州仪器 | 类似代替 | TRS3221IDBR和MAX3221EIPW的区别 |