
Overview
The SN74AC240DB is an inverter made by Texas Instruments in a SSOP-20 package with 20 pins. SSOP-20 Inverters ROHS.
PCBKit's library has its KiCad symbol (74xx:74HC240, from KiCad's library) and its footprint (Package_SO:SSOP-20_5.3x7.2mm_P0.65mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C2866038).
Symbol
Footprint
Order codes
1- SN74AC240DBRLCSC C2866038
Pinout
20| Pin | Name | Type |
|---|---|---|
| 1 | 1OE | Input |
| 2 | 1A0 | Input |
| 3 | 2Y0 | Tri-state |
| 4 | 1A1 | Input |
| 5 | 2Y1 | Tri-state |
| 6 | 1A2 | Input |
| 7 | 2Y2 | Tri-state |
| 8 | 1A3 | Input |
| 9 | 2Y3 | Tri-state |
| 10 | GND | Power in |
| 11 | 2A3 | Input |
| 12 | 1Y3 | Tri-state |
| 13 | 2A2 | Input |
| 14 | 1Y2 | Tri-state |
| 15 | 2A1 | Input |
| 16 | 1Y1 | Tri-state |
| 17 | 2A0 | Input |
| 18 | 1Y0 | Tri-state |
| 19 | 2OE | Input |
| 20 | VCC | Power in |
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Is there a KiCad symbol and footprint for the SN74AC240DB?
Yes. The symbol is 74xx:74HC240 and the footprint Package_SO:SSOP-20_5.3x7.2mm_P0.65mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the SN74AC240DB?
SSOP-20, with 20 pins. Its footprint is drawn on this page.
Where is the SN74AC240DB datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the SN74AC240DB?
JLCPCB lists it as part C2866038, with 0 in stock; the sellers' links on this page open their listings.
What can replace the SN74AC240DB?
Parts like it in the library: the SN74LS540DB by Texas Instruments, the SN74AHCT540DB by Texas Instruments and the SN74ABT2240ADB by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Parts like it
3SN74LS540DB
SSOP-200℃~+70℃ 15mA 15ns@5V,45pF 2.4V~3.4V 24mA 2V 4.75V~5.25V 500mV 52mA 600mV 74LS 8 SSOP-20 Buffers, Drivers, Receivers, Transceivers ROHSTexas InstrumentsInvertersSN74AHCT540DB
SSOP-20SSOP-20 Inverters ROHSTexas InstrumentsInvertersSN74ABT2240ADB
SSOP-20Power shutdown protection SSOP-20 Buffers, Drivers, Receivers, Transceivers ROHSTexas InstrumentsInverters