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7442 BCD to Decimal Decoder

15.00 EGP

SKU: IC_7442 Category:


  • Single BCD to Decimal Decoder
  • Standard Pin Configuration
  • Operating Temperature to 70°C
  • Standard TTL Switching Voltages
  • Superseded, Not Recommended for New Designs
Part Summary
Manufacturer Various
Manufacturer’s Part Number 7442
Manufacturer’s Web Site
Futurlec Part Number 7442
Department Integrated Circuits
Category 74 Series
RoHS Compliant
Package Type 14 Pin DIP
Technical Data 7442 Datasheet
Pin Description
Pin Number Description
1 Decimal 0 Output
2 Decimal 1 Output
3 Decimal 2 Output
4 Decimal 3 Output
5 Decimal 4 Output
6 Decimal 5 Output
7 Decimal 6 Output
8 Ground
9 Decimal 7 Output
10 Decimal 8 Output
11 Decimal 9 Output
12 BCD D Input
13 BCD C Input
14 BCD B Input
15 BCD A Input
16 Vcc – Positive Supply
Pin Layout
Dimensional Drawing
DIP16 IC Dimensional Drawing
Technical Data

Absolute Maximum Ratings

Supply Voltage 7V
Input Voltage 5.5V
Operating Free Air Temperature 0°C to 70°C
Storage Temperature Range -65°C to 150°C

Recommended Operating Conditions

Symbol Parameter Min Typ Max Units
Vcc Supply Voltage 4.75 5 5.25 V
Vih HIGH Level Input Voltage 2 V
Vil LOW Level Input Voltage 0.8 V
Ioh HIGH Level Output Current -0.4 mA
Iol LOW Level Output Current 16 mA
Ta Free Air Operating Temperature 0 70 °C

Electrical Characteristics

Symbol Parameter Conditions Min Typ Max Units
Vi Input Clamp Voltage Vcc=Min Ii=-12mA -1.5 V
Voh HIGH Level Output Voltage Vcc=Min Ioh=MAX Vil=MAX 2.4 3.4 V
Vol LOW Level Output Voltage Vcc=Min Iol=MAX Vih=MAX 0.2 0.4 V
Ii Input Current@MAX Input Voltage Vcc=Max Vi=5.5V 1 mA
Iih HIGH Level Input Current Vcc=Max Vi=2.4V 40 µA
Iil LOW Level Input Current Vcc=Max Vi=0.4V -1.6 mA
Ios Short Circuit Output Current Vcc=Max -18 -55 mA
Icch Supply Current with Outputs HIGH Vcc=Max 4 8 mA
Iccl Supply Current with Outputs LOW Vcc=Max 12 22 mA

Switching Characteristics at Vcc=5V,Ta=25°C

Symbol Parameter Conditions Min Typ Max Units
tplh Propagation Delay Time LOW-to-HIGH Level Output Cl=15pF Rl=400R 22 nS
tphl Propagation Delay Time HIGH-to-LOW Level Output Cl=15pF Rl=400R 15 nS
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