SN54LS42 Datasheet, PDF (1/3 Pages) Motorola, Inc – ONE-OF-TEN DECODER

ONE-OF-TEN DECODER
The LSTTL / MSI SN54 / 74LS42 is a Multipurpose Decoder designed to ac-
cept 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 Motorola TTL families.
• Multifunction Capability
• Mutually Exclusive Outputs
• Demultiplexing Capability
• Input Clamp Diodes Limit High Speed Termination Effects
CONNECTION DIAGRAM DIP (TOP VIEW)
VCC A0 A1 A2 A3 9 8 7
16 15 14 13 12 11 10 9
NOTE:
The Flatpak version has the
same pinouts (Connection
Diagram) as the Dual In-Line
Package.
12
01
3 4 56
2 3 45
78
6 GND
PIN NAMES
A0 – A3
0 to 9
Address Inputs
Outputs, Active LOW (Note b)
LOADING (Note a)
HIGH
LOW
0.5 U.L.
0.25 U.L.
10 U.L. 5(2.5) U.L.
NOTES:
a) 1 TTL Unit Load (U.L.) = 40 µA HIGH/1.6 mA LOW.
b) The Output LOW drive factor is 2.5 U.L. for Military (54) and 5 U.L. for Commercial (74)
Temperature Ranges.
A0
15
LOGIC DIAGRAM
A1
14
A2
13
A3
12
1
2
3
4
5
6
7
9
10
11
0
1
2
3
4
5
6
7
8
9
VCC = PIN 16
GND = PIN 8
= PIN NUMBERS
FAST AND LS TTL DATA
5-53
SN54/74LS42
ONE-OF-TEN DECODER
LOW POWER SCHOTTKY
16
1
J SUFFIX
CERAMIC
CASE 620-09
16
1
N SUFFIX
PLASTIC
CASE 648-08
16
1
D SUFFIX
SOIC
CASE 751B-03
ORDERING INFORMATION
SN54LSXXJ
SN74LSXXN
SN74LSXXD
Ceramic
Plastic
SOIC
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