SN74LS540N The Texas Instruments SN74LS540N is an octal buffer/line driver featuring 3-state outputs. It operates within a voltage range of 4.75V to 5.25V and has an operating temperature range of 0°C to 70°C.
Mfr Part #:

SN74LS540N

Available from 4 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments SN74LS540N is an octal buffer/line driver featuring 3-state outputs. It operates within a voltage range of 4.75V to 5.25V and has an operating temperature range of 0°C to 70°C.
Total Stock: 6,962 pcs
$ Price Range: $0.80

SN74LS540N Available from 4 distributors

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SN74LS540N Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Lead Spacing
Logic Type
Mounting Type
Number of Bits per Element
Number of Elements
Operating Temperature
Output Type
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Supplier Device Package
Supplier Package
Voltage

SN74LS540N Description

Short technical summary and product information.

The SN74LS540N from Texas Instruments is an octal buffer and line driver designed for high-performance applications. This integrated circuit features 3-state outputs, making it suitable for driving bus lines or buffering memory address registers. It operates with a supply voltage ranging from 4.75V to 5.25V and is characterized for operation from 0°C to 70°C.

 

The device offers inverting data at its outputs. The three-state control gate is a 2-input NOR gate, ensuring all eight outputs enter a high-impedance state when either G1 or G2 is high. This design enhances printed circuit board layout with a data flow-thru pinout, placing all inputs on the opposite side from the outputs.

 

Packaged in a 20-pin Dual In-line Package (PDIP), the SN74LS540N is designed for through-hole mounting. Its features include P-N-P inputs that reduce DC loading and hysteresis at the inputs to improve noise margins. The part number SN74LS540N is identical to SN74LS540N.A.

SN74LS540N Quick Information

Product Type: Buffer/Line Driver
Series: 74LS
Canonical Name: SN74LS540N Octal Buffer/Line Driver
Subcategory: Logic

SN74LS540N Compliance

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

SN74LS540N Estimated Pricing

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1+ $0.80 $0.80

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

SN74LS540N Features

  • Octal buffer/line driver with 3-state outputs.
  • Operates from 4.75V to 5.25V supply voltage.
  • Wide operating temperature range of 0°C to 70°C.
  • Through-hole mounting in a 20-PDIP package.
  • Inverting data outputs with hysteresis.

SN74LS540N Applications

  • Ideal for bus line driving.
  • Suitable for memory address buffering.
  • Used in logic level translation.
  • General purpose digital signal buffering.

SN74LS540N FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the SN74LS540N?

The operating voltage range is 4.75V to 5.25V.

What is the operating temperature range of the SN74LS540N?

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

What package does the SN74LS540N come in?

The SN74LS540N is available in a 20-pin DIP (0.300", 7.62mm) through-hole package.

Does the SN74LS540N have 3-state outputs?

Yes, the output type is 3-State.

How many bits per element does the SN74LS540N have?

It has 8 bits per element.

What is the output current capability of the SN74LS540N?

It can source 15mA (high) and sink 24mA (low).

Is the SN74LS540N an inverting buffer?

Yes, it is a buffer with inverting logic.

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