DS3662

更新时间： 2024-11-24 22:49:07

品牌	Logo	应用领域
美国国家半导体 - NSC		总线收发器
页数	文件大小	规格书
6页	167K
描述
Quad High Speed Trapezoidal⑩ Bus Transceiver

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DS3662 数据手册

July 1992

DS3662

Quad High Speed Trapezoidal Bus Transceiver

™

General Description

Features

n Pin to pin functional replacement for DS8641

The DS3662 is a quad high speed Schottky bus transceiver

intended for use with terminated 120Ω impedance lines. It is

specifically designed to reduce noise in unbalanced trans-

mission systems. The open collector drivers generate pre-

cise trapezoidal waveforms with rise and fall times of 15 ns

(typical), which are relatively independent of capacitive load-

ing conditions on the outputs. This reduces noise coupling to

the adjacent lines without any appreciable impact on the

maximum data rate obtainable with high speed bus trans-

ceivers. In addition, the receivers use a low pass filter in con-

junction with a high speed comparator, to further enhance

the noise immunity. Tightly controlled threshold levels on the

receiver provide equal rejection to both negative and positive

going noise pulses on the bus.

n Guaranteed AC specifications on noise immunity and

propagation delay over the specified temperature and

supply voltage range

n Temperature insensitive receiver thresholds track bus

logic level

n Trapezoidal bus waveforms reduce noise coupling to

adjacent lines

n Precision receiver thresholds provide maximum noise

immunity and symmetrical response to positive and

negative going pulses

n Open collector driver output allows wire-OR connection

n High speed Schottky technology

n 15 µA typical bus termination current with normal V_CCor

The external termination is intended to be a 180Ω resistor

from the bus to 5V logic supply, together with a 390Ω resistor

from the bus to ground. The bus can be terminated at one or

both ends. A two input NOR gate is provided to disable all

drivers in a package simultaneously.

with V_CC0V

n Glitch free power up/down protection on the driver

output

n TTL compatible driver and disable inputs, and receiver

outputs

Block and Connection Diagram

Dual-In-Line Package

DS005803-1

Top View

Order Number DS3662J, DS3662N or DS3662WM

See NS Package Number J16A, N16A or M16B

™

Trapezoidal is a trademark of National Semiconductor Corp.

DS005803

www.national.com

12 3 4 5 6

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与DS3662相关器件

型号	品牌	获取价格	描述	数据表
DS3662J	NSC	获取价格	Quad High Speed Trapezoidal⑩ Bus Transceiver
DS3662J/A+	ETC	获取价格	4-Bit Bus Transceiver
DS3662N	NSC	获取价格	Quad High Speed Trapezoidal⑩ Bus Transceiver
DS3662N/A+	ETC	获取价格	4-Bit Bus Transceiver
DS3662N/B+	ETC	获取价格	4-Bit Bus Transceiver
DS3662WM	NSC	获取价格	Quad High Speed Trapezoidal⑩ Bus Transceiver
DS3662WMX	TI	获取价格	QUAD LINE TRANSCEIVER, PDSO16, 0.300 INCH, PLASTIC, SOP-16
DS3666N	ETC	获取价格	Single 8-bit Bus Transceiver
DS3667	NSC	获取价格	TRI-STATE Bidirectional Transceiver
DS3667N	NSC	获取价格	TRI-STATE Bidirectional Transceiver