DS14C89A屬于集成電路（IC）的驅(qū)動器接收器收發(fā)器。由美國德州儀器公司制造生產(chǎn)的DS14C89A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。

1FEATURES

2? Meets EIA/TIA-232-E and CCITT V.28

Standards

? Failsafe - Output High for Open Input

? LOW Power Consumption

? On Chip Noise Filter

? Available in SOIC Package

DESCRIPTION

The DS14C89A, pin-for-pin compatible to the

DS1489A/MC1489A, ia a quad receiver designed to

interface data terminal equipment (DTE) with data

circuit-terminating equipment (DCE). These devices

translate levels conforming to EIA-232E and CCITT

V.28 standards to TTL/CMOS logic levels.

The device is fabricated in low threshold CMOS metal

gate technology. The device provides very low power

consumption compared to their bipolar equivalents:

900 μA (DS14C89A) versus 26 mA (DS1489A).

The DS14C89A provides on chip noise filtering which

eliminates the need for external response control filter

capacitors. When replacing the DS1489A with the

DS14C89A, the response control filter pins can be

tied high, low, or not connected.