Overview
The CD74AC540E is a buffers, Drivers, Receivers, Transceiver made by Texas Instruments in a PDIP-20 package with 20 pins. -55℃~+125℃ 1 1.5V~5.5V 24mA 24mA 7.8ns@4.5V 74AC 8 Short-Circuit Protection StandardCMOS Tri-State Unidirectional PDIP-20 Buffers, Drivers, Receivers, Transceivers.
PCBKit's library has its KiCad symbol (74xx:74LS540, from KiCad's library) and its footprint (Package_DIP:DIP-20_W8.89mm_SMDSocket_LongPads, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C3753239).
Symbol
Footprint
Order codes
1- CD74AC540ELCSC C3753239
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 |
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Is there a KiCad symbol and footprint for the CD74AC540E?
Yes. The symbol is 74xx:74LS540 and the footprint Package_DIP:DIP-20_W8.89mm_SMDSocket_LongPads, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the CD74AC540E?
PDIP-20, with 20 pins. Its footprint is drawn on this page.
Where is the CD74AC540E datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the CD74AC540E?
JLCPCB lists it as part C3753239, with 0 in stock; the sellers' links on this page open their listings.
What can replace the CD74AC540E?
Parts like it in the library: the SN74HC244N(LX) by lingxingic, the AIP74HC540DA20.TB by Wuxi I-core Elec, the AIP74HC541DA20.TB by Wuxi I-core Elec and the 74HC244N-HX by ZHHXDZ. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Parts like it
8
SN74HC244N(LX)
DIP-20-40℃~+125℃ 11ns@4.5V,15pF 2 2V~6V 4 7.8mA 7.8mA 74HC 8uA Tri-State Unidirectional DIP-20 Buffers, Drivers, Receivers, Transceivers ROHSlingxingicBuffers, Drivers, Receivers, TransceiversAIP74HC540DA20.TB
DIP-20-40℃~+125℃ 1 11ns@4.5V,50pF 2V~6V 7.8mA 7.8mA 74HC 8 8uA Output enable StandardCMOS Tri-State Unidirectional DIP-20 Buffers, Drivers, Receivers, Transceivers ROHSWuxi I-core ElecBuffers, Drivers, Receivers, TransceiversAIP74HC541DA20.TB
DIP-20-40℃~+125℃ 1 12ns@4.5V,50pF 2V~6V 7.8mA 7.8mA 74HC 8 8uA Output enable StandardCMOS Tri-State Unidirectional DIP-20 Buffers, Drivers, Receivers, Transceivers ROHSWuxi I-core ElecBuffers, Drivers, Receivers, Transceivers74HC244N-HX
DIP-20DIP-20 Buffers, Drivers, Receivers, Transceivers ROHSZHHXDZBuffers, Drivers, Receivers, TransceiversSN74HC245NGD
DIP-20-40℃~+125℃ 1 2V~6V 7.8mA 7.8mA 74HC 7ns@5V,15pF 8 8uA Bidirectional Output enable Tri-State DIP-20 Buffers, Drivers, Receivers, Transceivers ROHSGREENMICROBuffers, Drivers, Receivers, TransceiversSN74HC541N(XBLW)
DIP-20-40℃~+125℃ 1 12ns@4.5V,50pF 160uA 20uA 2V~6V 6mA 74HC 8 Output enable Tri-State Unidirectional DIP-20 Buffers, Drivers, Receivers, Transceivers ROHSXBLWBuffers, Drivers, Receivers, TransceiversSN74HC541N(LX)
DIP-20-40℃~+125℃ 1 12ns@4.5V,50pF 2V~6V 7.8mA 7.8mA 74HC 8 8uA Tri-State Unidirectional DIP-20 Buffers, Drivers, Receivers, Transceivers ROHSlingxingicBuffers, Drivers, Receivers, TransceiversSN74AC245N
PDIP-20-40℃~+85℃ 1 24mA 24mA 2V~6V 3.5ns@5V,50pF 40uA 74AC 8 Bidirectional Tri-State PDIP-20 Buffers, Drivers, Receivers, Transceivers ROHSTexas InstrumentsBuffers, Drivers, Receivers, Transceivers