ST202屬于集成電路（IC）的驅(qū)動器接收器收發(fā)器。由意法半導(dǎo)體集團(tuán)制造生產(chǎn)的ST202驅(qū)動器，接收器，收發(fā)器該系列產(chǎn)品的主要功能是提供必需的硬件資源，以通過延長電纜或印制線進(jìn)行通信。確切的功能會因所采用的通信協(xié)議而異，可能包括諸如瞬態(tài)抑制之類的功能，這些功能對于通信用途可能并非絕對必要，但對于可能的使用環(huán)境卻是明智之選。

描述 Description

The ST202 is a 2 driver, 2 receiver device following EIA/TIA-232 and V.28 communication standard. It is particularly suitable for applications where ± 12V is not available. The ST202 uses a single 5V power supply and only four external capacitors (0.1μF). Typical application are in: Portable Computers, Low Power Modems, Interfaces Translation, Battery Powered RS-232 Networks.

Feature summary

■ Supply voltage range: 4.5 to 5.5V

■ Supply current no load (Typ): 1.5mA

■ Transmitter output voltage swing (Typ): ± 9V

■ Transition slew rate (Typ.): 12V/ms

■ Receiver propagation delay (Typ.): 0.1ms

■ Compatible with MAX202

■ Receiver input voltage range: ± 30V

■ Data rate (Typ.): 400kbp/s

■ Operating temperature range: -40 To 85 °C, 0 to 70°C

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