SN751730D屬于集成電路（IC）的驅(qū)動(dòng)器接收器收發(fā)器。由美國(guó)德州儀器公司制造生產(chǎn)的SN751730D驅(qū)動(dòng)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(guò)延長(zhǎng)電纜或印制線進(jìn)行通信。確切的功能會(huì)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(lèi)的功能，這些功能對(duì)于通信用途可能并非絕對(duì)必要，但對(duì)于可能的使用環(huán)境卻是明智之選。

1FEATURES

2· Meets or Exceeds the Requirements of IBM?

360/370 Input/Output Interface Specification

for 4.5-Mb/s Operation

· Single 5-V Supply

· Uncommitted Emitter-Follower Output

Structure for Party-Line Operation

· Driver Output Short-Circuit Protection

· Driver Input/Receiver Output Compatible With

TTL

· Receiver Input Resistance . . . 7.4 kΩ to 20 kΩ

· Ratio Specification for Propagation Delay

Time, Low to High/High to Low

DESCRIPTION/

ORDERING INFORMATION

The SN751730 triple line driver/receiver is specifically

designed to meet the input/output interface

specifications for IBM System 360/370. It also is

compatible with standard TTL logic and supply

voltage levels.

The low-impedance emitter-follower driver outputs of

the SN751730 drive terminated lines, such as coaxial

cable or twisted pair. Having the outputs uncommitted

allows wired-OR logic to be performed in party-line

applications. Output short-circuit protection is

provided by an internal clamping network that turns

on when the output voltage drops below

approximately 2.5 V.

An open line affects the receiver input as does a

low-level input voltage.

All the driver inputs and receiver outputs are in

conventional TTL configuration and the gating can be

used during power-up and power-down sequences to

ensure that no noise is introduced to the line by

pulling either DE1 or DE2 to a low level.