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POWER SCHOTTKY. 74LS42 Datasheet

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POWER SCHOTTKY. 74LS42 Datasheet






74LS42 SCHOTTKY. Datasheet pdf. Equivalent




74LS42 SCHOTTKY. Datasheet pdf. Equivalent





Part

74LS42

Description

LOW POWER SCHOTTKY



Feature


SN74LS42 One-of-Ten Decoder The LSTTL / MSI SN74LS42 is a Multipurpose Decoder designed to accept four BCD inputs and provide ten mutually exclusive outputs. The LS42 is fabricated with the Schott ky barrier diode process for high speed and is completely compatible with all ON Semiconductor TTL families. • Mult ifunction Capability • Mutually Exclu sive Outputs • Demulti.
Manufacture

ON Semiconductor

Datasheet
Download 74LS42 Datasheet


ON Semiconductor 74LS42

74LS42; plexing Capability • Input Clamp Diode s Limit High Speed Termination Effects http://onsemi.com LOW POWER SCHOTTKY GUARANTEED OPERATING RANGES Symbol VCC TA IOH IOL Parameter Supply Voltage Op erating Ambient Temperature Range Outpu t Current – High Output Current – L ow Min 4.75 0 Typ 5.0 25 Max 5.25 70 0.4 8.0 Unit V °C mA mA 16 1 PLASTI C N SUFFIX CASE 648 16 1 .


ON Semiconductor 74LS42

SOIC D SUFFIX CASE 751B ORDERING INFORM ATION Device SN74LS42N SN74LS42D Packag e 16 Pin DIP 16 Pin Shipping 2000 Units /Box 2500/Tape & Reel © Semiconductor Components Industries, LLC, 1999 1 D ecember, 1999 – Rev. 6 Publication O rder Number: SN74LS42/D SN74LS42 CONNE CTION DIAGRAM DIP (TOP VIEW) VCC 16 A0 15 A1 14 A2 13 A3 12 9 11 8 10 7 9 NOTE : The Flatpak version.


ON Semiconductor 74LS42

has the same pinouts (Connection Diagra m) as the Dual In-Line Package. 1 0 2 1 3 2 4 3 5 4 6 5 7 6 8 GND LOADING (No te a) PIN NAMES A0 – A3 0 to 9 Addres s Inputs Outputs, Active LOW HIGH 0.5 U .L. 10 U.L. LOW 0.25 U.L. 5 U.L. NOTES : a) 1 TTL Unit Load (U.L.) = 40 mA HIG H/1.6 mA LOW. LOGIC SYMBOL 15 14 13 12 A0 A1 A2 A3 0 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 9 10 1.

Part

74LS42

Description

LOW POWER SCHOTTKY



Feature


SN74LS42 One-of-Ten Decoder The LSTTL / MSI SN74LS42 is a Multipurpose Decoder designed to accept four BCD inputs and provide ten mutually exclusive outputs. The LS42 is fabricated with the Schott ky barrier diode process for high speed and is completely compatible with all ON Semiconductor TTL families. • Mult ifunction Capability • Mutually Exclu sive Outputs • Demulti.
Manufacture

ON Semiconductor

Datasheet
Download 74LS42 Datasheet




 74LS42
SN74LS42
One-of-Ten Decoder
The LSTTL / MSI SN74LS42 is a Multipurpose Decoder designed
to accept four BCD inputs and provide ten mutually exclusive outputs.
The LS42 is fabricated with the Schottky barrier diode process for
high speed and is completely compatible with all ON Semiconductor
TTL families.
Multifunction Capability
Mutually Exclusive Outputs
Demultiplexing Capability
Input Clamp Diodes Limit High Speed Termination Effects
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min Typ Max Unit
VCC Supply Voltage
TA Operating Ambient
Temperature Range
4.75 5.0 5.25
V
0 25 70 °C
IOH Output Current – High
IOL Output Current – Low
– 0.4
8.0
mA
mA
http://onsemi.com
LOW
POWER
SCHOTTKY
16
1
PLASTIC
N SUFFIX
CASE 648
16
1
SOIC
D SUFFIX
CASE 751B
ORDERING INFORMATION
Device
Package
Shipping
SN74LS42N
16 Pin DIP
2000 Units/Box
SN74LS42D
16 Pin
2500/Tape & Reel
© Semiconductor Components Industries, LLC, 1999
December, 1999 – Rev. 6
1
Publication Order Number:
SN74LS42/D




 74LS42
SN74LS42
CONNECTION DIAGRAM DIP (TOP VIEW)
VCC A0 A1 A2 A3 9
16 15 14 13 12 11
1 2 3 4 56
0 1 2 3 45
87
10 9
78
6 GND
NOTE:
The Flatpak version
has the same pinouts
(Connection Diagram)
as the Dual In-Line
Package.
PIN NAMES
A0 – A3
0 to 9
Address Inputs
Outputs, Active LOW
LOADING (Note a)
HIGH
LOW
0.5 U.L.
10 U.L.
0.25 U.L.
5 U.L.
NOTES:
a) 1 TTL Unit Load (U.L.) = 40 mA HIGH/1.6 mA LOW.
LOGIC SYMBOL
15 14 13 12
A0 A1 A2 A3
012345 6 7 89
1 2 3 4 5 6 7 9 10 11
VCC = PIN 16
GND = PIN 8
A0
15
LOGIC DIAGRAM
A1
14
A2
13
A3
12
12
3 4 5 6 7 9 10 11
0 1 2 3 4 56 7 89
VCC = PIN 16
GND = PIN 8
= PIN NUMBERS
http://onsemi.com
2




 74LS42
SN74LS42
FUNCTIONAL DESCRIPTION
The LS42 decoder accepts four active HIGH BCD inputs
and provides ten mutually exclusive active LOW outputs, as
shown by logic symbol or diagram. The active LOW outputs
facilitate addressing other MSI units with LOW input
enables.
The logic design of the LS42 ensures that all outputs
are HIGH when binary codes greater than nine are applied
to the inputs.
The most significant input A3 produces a useful inhibit
function when the LS42 is used as a one-of-eight decoder.
The A3 input can also be used as the Data input in an 8-output
demultiplexer application.
TRUTH TABLE
A0 A1 A2 A3 0 1 2 3 4 5 6 7 8 9
L L L L LHHHHHHHHH
H L L L HLHHHHHHHH
L H L L HHLHHHHHHH
H H L L HHHLHHHHHH
L L H L HHHHLHHHHH
H L H L HHHHHLHHHH
L H H L HHHHHHLHHH
H H H L HHHHHHHLHH
L L L H HHHHHHHHLH
H L L H HHHHHHHHHL
L H L H HHHHHHHHHH
H H L H HHHHHHHHHH
L L H H HHHHHHHHHH
H L H H HHHHHHHHHH
L H H H HHHHHHHHHH
H H H H HHHHHHHHHH
H = HIGH Voltage Level
L = LOW Voltage Level
http://onsemi.com
3



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