SN74LS540DW
Texas InstrumentsExtended
0℃~+70℃ 15mA 24mA 4.75V~5.25V 52mA 74LS 8 Schmitt trigger Tri-State SOIC-20-300mil Buffers, Drivers, Receivers, Transceivers ROHS
- Part id
- ti/SN74LS540DW
- Category
- Buffers, Drivers, Receivers, Transceivers
- Package
- SOIC-20-300mil
- Pins
- 20
- In stock
- 21 at JLCPCB (C2675592)
Overview
The SN74LS540DW is a buffers, Drivers, Receivers, Transceiver made by Texas Instruments in a SOIC-20-300mil package with 20 pins. 0℃~+70℃ 15mA 24mA 4.75V~5.25V 52mA 74LS 8 Schmitt trigger Tri-State SOIC-20-300mil Buffers, Drivers, Receivers, Transceivers ROHS.
PCBKit's library has its KiCad symbol (74xx:74LS540, from KiCad's library) and its footprint (Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm, from KiCad's library), ready for a KiCad board. 21 are in stock at JLCPCB (part C2675592).
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 SN74LS540DW?
Yes. The symbol is 74xx:74LS540 and the footprint Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the SN74LS540DW?
SOIC-20-300mil, with 20 pins. Its footprint is drawn on this page.
Where is the SN74LS540DW datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the SN74LS540DW?
JLCPCB lists it as part C2675592, with 21 in stock; the sellers' links on this page open their listings.
What can replace the SN74LS540DW?
Parts like it in the library: the 74HC245D by Nexperia, the 74HCT244D by Nexperia, the 74HCT245D by Nexperia and the SN74HC244DW by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.