SN74LS540NS
Texas InstrumentsExtended
0℃~+70℃ 15mA 15ns@5V,45pF 24mA 4.75V~5.25V 52mA 74LS Tri-State SO-20-208mil Buffers, Drivers, Receivers, Transceivers ROHS
- Part id
- ti/SN74LS540NS
- Category
- Buffers, Drivers, Receivers, Transceivers
- Package
- SO-20-208mil
- Pins
- 20
- In stock
- 96 at JLCPCB (C1848218)
Overview
The SN74LS540NS is a buffers, Drivers, Receivers, Transceiver made by Texas Instruments in a SO-20-208mil package with 20 pins. 0℃~+70℃ 15mA 15ns@5V,45pF 24mA 4.75V~5.25V 52mA 74LS Tri-State SO-20-208mil Buffers, Drivers, Receivers, Transceivers ROHS.
PCBKit's library has its KiCad symbol (74xx:74LS540, from KiCad's library) and its footprint (EasyEDA_Cloud:SO-20_L12.6-W5.3-P1.27-LS7.8-BL, from EasyEDA), ready for a KiCad board. 96 are in stock at JLCPCB (part C1848218).
Symbol
Footprint
Pinout
20| Pin | Name | Type |
|---|---|---|
| 1 | G1 | Input |
| 2 | A0 | Input |
| 3 | A1 | Input |
| 4 | A2 | Input |
| 5 | A3 | Input |
| 6 | A4 | Input |
| 7 | A5 | Input |
| 8 | A6 | Input |
| 9 | A7 | Input |
| 10 | GND | Power in |
| 11 | Y7 | Tri-state |
| 12 | Y6 | Tri-state |
| 13 | Y5 | Tri-state |
| 14 | Y4 | Tri-state |
| 15 | Y3 | Tri-state |
| 16 | Y2 | Tri-state |
| 17 | Y1 | Tri-state |
| 18 | Y0 | Tri-state |
| 19 | G2 | Input |
| 20 | VCC | Power in |
Parts like it
8
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Questions
Is there a KiCad symbol and footprint for the SN74LS540NS?
Yes. The symbol is 74xx:74LS540 and the footprint EasyEDA_Cloud:SO-20_L12.6-W5.3-P1.27-LS7.8-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the SN74LS540NS?
SO-20-208mil, with 20 pins. Its footprint is drawn on this page.
Where is the SN74LS540NS datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the SN74LS540NS?
JLCPCB lists it as part C1848218, with 96 in stock; the sellers' links on this page open their listings.
What can replace the SN74LS540NS?
Parts like it in the library: the SN74ACT245NSR by Texas Instruments, the SN74F244NS by Texas Instruments, the SN74HCT541NSR by Texas Instruments and the SN74LVT244BNSR by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.