SN74LS240 ON Semiconductor, SN74LS240 Datasheet

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SN74LS240

Manufacturer Part Number
SN74LS240
Description
Octal Buffer/Line Driver with 3-State Outputs
Manufacturer
ON Semiconductor
Datasheet

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SN74LS240 SN74LS244
Octal Buffer/Line Driver
with 3-State Outputs
Drivers designed to be employed as memory address drivers, clock
drivers and bus-oriented transmitters/receivers which provide
improved PC board density.
GUARANTEED OPERATING RANGES
December, 1999 – Rev. 6
Symbol
The SN74LS240 and SN74LS244 are Octal Buffers and Line
Registers
Hysteresis at Inputs to Improve Noise Margins
3-State Outputs Drive Bus Lines or Buffer Memory Address
Input Clamp Diodes Limit High-Speed Termination Effects
Semiconductor Components Industries, LLC, 1999
V
I
I
T
OH
OL
CC
A
Supply Voltage
Operating Ambient
Output Current – High
Output Current – Low
Temperature Range
Parameter
4.75
Min
0
Typ
5.0
25
Max
5.25
– 3.0
– 15
70
24
1
Unit
mA
mA
mA
V
C
SN74LS240N
SN74LS240DW
SN74LS244N
SN74LS244DW
Device
ORDERING INFORMATION
20
http://onsemi.com
20
SCHOTTKY
1
16 Pin DIP
16 Pin DIP
POWER
DW SUFFIX
CASE 751D
Package
CASE 738
N SUFFIX
PLASTIC
16 Pin
16 Pin
LOW
SOIC
1
Publication Order Number:
2500/Tape & Reel
2500/Tape & Reel
1440 Units/Box
1440 Units/Box
SN74LS240/D
Shipping

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SN74LS240 Summary of contents

Page 1

... SN74LS240 SN74LS244 Octal Buffer/Line Driver with 3-State Outputs The SN74LS240 and SN74LS244 are Octal Buffers and Line Drivers designed to be employed as memory address drivers, clock drivers and bus-oriented transmitters/receivers which provide improved PC board density. Hysteresis at Inputs to Improve Noise Margins 3-State Outputs Drive Bus Lines or Buffer Memory Address ...

Page 2

... SN74LS240 SN74LS244 LOGIC AND CONNECTION DIAGRAMS DIP (TOP VIEW) SN74LS240 V 2G 1Y1 2A4 1Y2 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 SN74LS244 V 2G 1Y1 2A4 1Y2 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 ...

Page 3

... LS244 PHL t Output Enable Time to HIGH Level PZH t Output Enable Time to LOW Level PZL t Output Disable Time from LOW Level PLZ t Output Disable Time from HIGH Level PHZ SN74LS240 SN74LS244 (unless otherwise specified) Limits Min Typ Max Unit 2.0 V 0.8 V 0.2 0.4 V – 0.65 – 1 ...

Page 4

... SN74LS240 SN74LS244 AC WAVEFORMS V 1 PLH PHL 1 OUT Figure 1. 1 PHL PLH 1 OUT Figure 1 PZL PLZ 1 1.3 V OUT V OL 0.5 V Figure 1 PZH PHZ 1.3 V OUT 1.3 V 0.5 V Figure 4. http://onsemi.com ...

Page 5

... SEATING PLANE 0.25 (0.010) SN74LS240 SN74LS244 PACKAGE DIMENSIONS N SUFFIX PLASTIC PACKAGE CASE 738–03 ISSUE 0.25 (0.010 http://onsemi.com 5 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. ...

Page 6

... SN74LS240 SN74LS244 PLASTIC SOIC PACKAGE CASE 751D– 20X 0. SEATING PLANE e 18X A1 T http://onsemi.com D SUFFIX ISSUE F q NOTES: 1. DIMENSIONS ARE IN MILLIMETERS. 2. INTERPRET DIMENSIONS AND TOLERANCES PER ASME Y14.5M, 1994. 3. DIMENSIONS D AND E DO NOT INCLUDE MOLD PROTRUSION ...

Page 7

... Notes SN74LS240 SN74LS244 http://onsemi.com 7 ...

Page 8

... Email: ONlit–french@hibbertco.com English Phone: (+1) 303–308–7142 (M–F 1:30pm to 5:00pm UK Time) Email: ONlit@hibbertco.com SN74LS240 SN74LS244 ASIA/PACIFIC: LDC for ON Semiconductor – Asia Support Phone: 303–675–2121 (Tue–Fri 9:00am to 1:00pm, Hong Kong Time) Toll Free from Hong Kong 800–4422–3781 Email: ONlit– ...

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