DS3650 National Semiconductor Corporation, DS3650 Datasheet

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DS3650

Manufacturer Part Number
DS3650
Description
Quad Differential Line Receivers
Manufacturer
National Semiconductor Corporation
Datasheet

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© 1999 National Semiconductor Corporation
DS3650
Quad Differential Line Receivers
General Description
The DS3650 is TTL compatible quad high speed circuits in-
tended primarily for line receiver applications. Switching
speeds have been enhanced over conventional line receiv-
ers by the use of Schottky technology, and TRI-STATE
strobing is incorporated offering a high impedance output
state for bussed organizations.
The DS3650 has active pull-up outputs and offers a
TRI-STATE strobe.
Connection Diagram
L = Low Logic State Open = TRI-STATE
H = High Logic State X = Indeterminate State
TRI-STATE
V
−25 mV
V
D
ID
25 mV
−25 mV
For Complete Military 883 Specifications,
®
See NS Package Number M16A or N16A
is a registered trademark of National Semiconductor Corporation.
Order Number DS3650M or DS3650N
Input
V
ID
25 mV
see RETS Data Sheet.
Dual-In-Line Package
Top View
Strobe
H
H
H
L
L
L
DS005782
DS005782-1
DS3650
Output
Open
Open
Open
H
X
L
®
Features
n High speed
n TTL compatible
n Input sensitivity:
n TRI-STATE outputs for high speed busses
n Standard supply voltages:
n Pin and function compatible with MC3450
Wired “OR” Data Selecting Using TRI-STATE Logic
±
25 mV
±
5V
DS005782-3
www.national.com
June 1999

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DS3650 Summary of contents

Page 1

... DS3650 Quad Differential Line Receivers General Description The DS3650 is TTL compatible quad high speed circuits in- tended primarily for line receiver applications. Switching speeds have been enhanced over conventional line receiv- ers by the use of Schottky technology, and TRI-STATE strobing is incorporated offering a high impedance output state for bussed organizations ...

Page 2

... This parameter is commonly referred to as threshold voltage well known that design considerations of threshold voltage are plagued by input offset currents, bias currents, network source resistances, and voltage gain design convenience, the DS3650 is specified to a pa- rameter called input sensitivity (V ) ...

Page 3

Switching Characteristics = − 25˚C unless otherwise noted Symbol Parameter t High-to-Low Logic Level Propagation PHL(D) Delay Time (Differential Inputs) t Low-to-High Logic Level Propagation ...

Page 4

Electrical Characteristic Test Circuits +2.975V +3.0V +3.0V OH −3.0V −2.975V GND V +3.0V +2.975V GND OL −2.975V −3.0V −3.0V Channel A shown under test. Other channels are tested similarly. FIGURE 2. I and I CCH EEH www.national.com ...

Page 5

Note: Channel A shown under test, other channels are tested similiarly. Only one output shorted at a time. FIGURE Note: Channel A(−) shown under test, other channels are tested similarly. Devices are tested with V1 from ...

Page 6

... AC Test Circuits and Switching Time Waveforms Note. Output of Channel B shown under test, other channels are tested similarly “B” for DS1650/DS3650 = 50 pF total for DS3650 C L FIGURE 8. Receiver Propagation Delay t www.national.com Note. E waveform characteristics and measured TLH THL ...

Page 7

Note. Output of Channel B shown under test, other channels are tested similiarly. t PLO(S) t POL(S) t PHO(S) t POH(S) C includes jig and probe capacitance waveform characteristics PRR = 1 MHz Duty Cycle ...

Page 8

... Schematic Diagrams 1/4 of circuit shown www.national.com DS3650 8 DS005782-20 ...

Page 9

... Physical Dimensions inches (millimeters) unless otherwise noted SO Package (M) Order Number DS3650M NS Package Number M16A Molded Dual-In-Line Package (N) Order Number DS3650N NS Package Number N16A 9 www.national.com ...

Page 10

... NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant ...

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