74LS42 The 74LS42 is a BCD to decimal decoder/demultiplexer from Semiconductor Components. It operates at 5V with 10 inverting outputs and a 35MHz bandwidth.
Mfr Part #:

74LS42

Available from 1 distributors
Mfr Name: Semiconductor Components
Semiconductor Components
The 74LS42 is a BCD to decimal decoder/demultiplexer from Semiconductor Components. It operates at 5V with 10 inverting outputs and a 35MHz bandwidth.
✓ Total Stock: 219 pcs
$ Price Range: $1.27

74LS42 Available from 1 distributor

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✓ Non-Authorised
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219 pcs
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74LS42 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Bandwidth
Lead Style
Operating Temperature
Operating Voltage
Propagation Delay

74LS42 Description

Short technical summary and product information.

The 74LS42 is a BCD to decimal decoder/demultiplexer integrated circuit manufactured by Semiconductor Components. It converts a 4-bit BCD input into one of ten decimal outputs, with inverting polarity. The device operates from a nominal 5V supply voltage, with a guaranteed range of 4.75V to 5.25V. It provides 10 outputs and features a typical bandwidth of 35MHz, making it suitable for high-speed decoding applications. The propagation delay is typically 30ns, and the nominal supply current is 7mA. The 74LS42 is housed in a 16-pin PDIP (Plastic Dual In-line Package) and is designed for through-hole mounting. It is rated for commercial operating temperatures from 0°C to 70°C. This part is commonly used in digital systems for address decoding, demultiplexing, and code conversion.

74LS42 Quick Information

Product Type: Decoder/Demultiplexer
Series: 74LS
Canonical Name: 74LS42 Decoder/Demultiplexer
Subcategory: Signal Switches, Multiplexers, Decoders

74LS42 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

74LS42 Estimated Pricing

Qty Low High
1+ $1.27 $1.27

Estimated market price range - modelled values for guidance only, not live distributor offers.

74LS42 Features

  • Operates at 5V nominal supply voltage.
  • Features 10 inverting outputs.
  • 35MHz bandwidth for high-speed decoding.
  • Propagation delay of 30ns typical.
  • PDIP through-hole package for easy prototyping.

74LS42 Applications

  • BCD to decimal decoding in digital systems.
  • Demultiplexing applications in logic circuits.
  • Memory address decoding in microprocessor systems.
  • Code conversion and data routing.

74LS42 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage of the 74LS42?

The nominal operating voltage is 5V, with a minimum of 4.75V and maximum of 5.25V.

What is the package type of the 74LS42?

The 74LS42 is available in a PDIP (Plastic Dual In-line Package) for through-hole mounting.

What is the operating temperature range?

The operating temperature range is 0°C to 70°C.

What is the bandwidth of the 74LS42?

The bandwidth is 35 MHz.

What is the propagation delay of the 74LS42?

The typical propagation delay is 30 ns.

What is the logic function of the 74LS42?

The logic function is Decoder and Demultiplexer.

How many outputs does the 74LS42 have?

The 74LS42 has 10 outputs with inverting polarity.

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