Datasheet > DS3649

DS3649

更新时间： 2024-10-01 23:48:55

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数据手册

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DS3649 数据手册

March 1986

DS1649/DS3649/DS1679/DS3679 Hex TRI-STATE TTL

to MOS Drivers

General Description

The DS1649/DS3649 and DS1679/DS3679 are Hex

TRI-STATE MOS drivers with outputs designed to drive

large capacitive loads up to 500 pF associated with MOS

memory systems. PNP input transistors are employed to re-

duce input currents allowing the large fan-out to these driv-

ers needed in memory systems. The circuit has Schottky-

clamped transistor logic for minimum propagation delay,

and TRI-STATE outputs for bus operation.

output. The DS1679/DS3679 has a direct low impedance

output for use with or without an external resistor.

Features

High speed capabilities

Typ 9 ns driving 50 pF

Typ 30 ns driving 500 pF

TRI-STATE outputs for data bussing

The DS1649/DS3649 has a 15X resistor in series with the

outputs to dampen transients caused by the fast-switching

Built-in 15X damping resistor (DS1649/DS3649)

Same pin-out as DM8096 and DM74366

TRI-STATEÉ is a registered trademark of National Semiconductor Corp.

Schematic Diagram

Truth Table

Disable Input

Input Output

DIS 1 DIS 2

Hi-Z

Don’t care

Hi-Z

TRI-STATE mode

*DS1649/DS3649 only

TL/F/7515–1

Connection Diagram

Typical Application

Dual-In-Line Package

TL/F/7515–2

Top View

Order Number DS1649J, DS3649J,

DS1679J, DS3679J, DS3649N or DS3679N

See NS Package Number J16A or N16A

TL/F/7515–3

RRD-B30M105/Printed in U. S. A.

1995 National Semiconductor Corporation

TL/F/7515

12 3 4 5 6

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与DS3649相关器件

型号	品牌	获取价格	描述	数据表
DS3649J	NSC	获取价格	Hex TRI-STATEE TTL to MOS Drivers
DS3649J/A+	ETC	获取价格	Memory Driver
DS3649N	NSC	获取价格	Hex TRI-STATEE TTL to MOS Drivers
DS3649N/A+	ETC	获取价格	Memory Driver
DS3649N/B+	ETC	获取价格	Memory Driver
DS3650	NSC	获取价格	Quad Differential Line Receivers
DS3650J	NSC	获取价格	Quad Differential Line Receivers
DS3650J/A+	NSC	获取价格	IC,LINE RECEIVER,QUAD,BIPOLAR,DIFFERENTIAL,DIP,16PIN,CERAMIC
DS3650J/A+	TI	获取价格	IC,LINE RECEIVER,QUAD,BIPOLAR,DIFFERENTIAL,DIP,16PIN,CERAMIC
DS3650M	NSC	获取价格	Quad Differential Line Receivers