Product details

Technology family LS Number of channels 8 IOL (max) (mA) 24 IOH (max) (mA) -15 Supply current (max) (µA) 52000 Input type Bipolar Output type 3-State Features High speed (tpd 10-50ns), Input clamp diode Rating Catalog Operating temperature range (°C) 0 to 70
Technology family LS Number of channels 8 IOL (max) (mA) 24 IOH (max) (mA) -15 Supply current (max) (µA) 52000 Input type Bipolar Output type 3-State Features High speed (tpd 10-50ns), Input clamp diode Rating Catalog Operating temperature range (°C) 0 to 70
SOP (NS) 20 98.28 mm² (12.6 mm × 7.8 mm) PDIP (N) 20 228.702 mm² (24.33 mm × 9.4 mm) SSOP (DB) 20 56.16 mm² (7.2 mm × 7.8 mm) SOIC (DW) 20 131.84 mm² (12.8 mm × 10.3 mm)
  • 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers
  • P-N-P Inputs Reduce D-C Loading
  • Hysteresis at Inputs Improves Noise Margins
  • Data Flow-thru Pinout (All Inputs on Opposite Side from Outputs)

 

  • 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers
  • P-N-P Inputs Reduce D-C Loading
  • Hysteresis at Inputs Improves Noise Margins
  • Data Flow-thru Pinout (All Inputs on Opposite Side from Outputs)

 

These octal buffers and line drivers are designed to have the performance of the popular SN54LS240/SN74LS240 series and, at the same time, offer a pinout having the inputs and outputs on opposite sides of the package. This arrangement greatly enhances printed circuit board layout.

The three-state control gate is a 2-input NOR such that if either G1\ or G2\ are high, all eight outputs are in the high-impedance state.

The 'LS540 offers inverting data and the 'LS541 offers true data at the outputs.

The SN54LS540 and SN54LS541 are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74LS540 and SN74LS541 are characterized for operation from 0°C to 70°C.

 

These octal buffers and line drivers are designed to have the performance of the popular SN54LS240/SN74LS240 series and, at the same time, offer a pinout having the inputs and outputs on opposite sides of the package. This arrangement greatly enhances printed circuit board layout.

The three-state control gate is a 2-input NOR such that if either G1\ or G2\ are high, all eight outputs are in the high-impedance state.

The 'LS540 offers inverting data and the 'LS541 offers true data at the outputs.

The SN54LS540 and SN54LS541 are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74LS540 and SN74LS541 are characterized for operation from 0°C to 70°C.

 

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Technical documentation

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* Data sheet Octal Buffers And Line Drivers With 3-State Outputs datasheet Mar 1, 1988

Design & development

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Evaluation board

14-24-LOGIC-EVM — Logic product generic evaluation module for 14-pin to 24-pin D, DB, DGV, DW, DYY, NS and PW packages

The 14-24-LOGIC-EVM evaluation module (EVM) is designed to support any logic device that is in a 14-pin to 24-pin D, DW, DB, NS, PW, DYY or DGV package,

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Simulation model

SN74LS540 Behavioral SPICE Model

SDLM030.ZIP (7 KB) - PSpice model
Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
SOP (NS) 20 Ultra Librarian
PDIP (N) 20 Ultra Librarian
SSOP (DB) 20 Ultra Librarian
SOIC (DW) 20 Ultra Librarian

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