SN74LS540N
Active8-CH, 4.75-V TO 5.25-V BIPOLAR INVERTERS WITH 3-STATE OUTPUTS
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SN74LS540N
Active8-CH, 4.75-V TO 5.25-V BIPOLAR INVERTERS WITH 3-STATE OUTPUTS
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Technical Specifications
Parameters and characteristics commom to parts in this series
| Specification | SN74LS540N | SN74LS540 Series |
|---|---|---|
| Current - Output High, Low [custom] | 24 mA | 24 mA |
| Current - Output High, Low [custom] | 15 mA | 15 mA |
| Logic Type | Inverting, Buffer | Inverting, Buffer |
| Mounting Type | Through Hole | Surface Mount, Through Hole |
| Number of Bits per Element | 8 | 8 |
| Number of Elements [custom] | 1 | 1 |
| Operating Temperature [Max] | 70 °C | 70 °C |
| Operating Temperature [Min] | 0 °C | 0 °C |
| Output Type | 3-State | 3-State |
| Package / Case | 20-DIP | 20-SOIC, 20-DIP, 20-SSOP |
| Package / Case | 0.3 in | 0.3 in |
| Package / Case | 7.62 mm | 7.62 mm |
| Package / Case | - | 0.209 - 7.5 mm |
| Supplier Device Package | 20-PDIP | 20-SOIC, 20-PDIP, 20-SSOP, 20-SO |
| Voltage - Supply [Max] | 5.25 V | 5.25 V |
| Voltage - Supply [Min] | 4.75 V | 4.75 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tube | 1 | $ 2.85 | |
| 10 | $ 1.84 | |||
| 25 | $ 1.58 | |||
| 100 | $ 1.29 | |||
| 250 | $ 1.14 | |||
| 500 | $ 1.05 | |||
| 1000 | $ 0.98 | |||
| 2500 | $ 0.90 | |||
| 5000 | $ 0.86 | |||
| Texas Instruments | TUBE | 1 | $ 1.45 | |
| 100 | $ 1.19 | |||
| 250 | $ 0.86 | |||
| 1000 | $ 0.65 | |||
SN74LS540 Series
8-ch, 4.75-V to 5.25-V bipolar inverters with 3-state outputs
| Part | Supplier Device Package | Number of Bits per Element | Number of Elements [custom] | Output Type | Package / Case | Package / Case | Current - Output High, Low [custom] | Current - Output High, Low [custom] | Operating Temperature [Max] | Operating Temperature [Min] | Mounting Type | Voltage - Supply [Min] | Voltage - Supply [Max] | Logic Type | Package / Case | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments SN74LS540DWR | 20-SOIC | 8 | 1 | 3-State | 0.295 in, 7.5 mm | 20-SOIC | 24 mA | 15 mA | 70 °C | 0 °C | Surface Mount | 4.75 V | 5.25 V | Buffer, Inverting | ||
Texas Instruments SN74LS540N | 20-PDIP | 8 | 1 | 3-State | 20-DIP | 24 mA | 15 mA | 70 °C | 0 °C | Through Hole | 4.75 V | 5.25 V | Buffer, Inverting | 0.3 in | 7.62 mm | |
Texas Instruments SN74LS540DBR | 20-SSOP | 8 | 1 | 3-State | 0.209 in, 5.3 mm | 20-SSOP | 24 mA | 15 mA | 70 °C | 0 °C | Surface Mount | 4.75 V | 5.25 V | Buffer, Inverting | ||
Texas Instruments SN74LS540NSR | 20-SO | 8 | 1 | 3-State | 0.209 in, 5.3 mm | 20-SOIC | 24 mA | 15 mA | 70 °C | 0 °C | Surface Mount | 4.75 V | 5.25 V | Buffer, Inverting |
Description
General part information
SN74LS540 Series
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.
Documents
Technical documentation and resources