Overview
The CD74FCT240ATQM is a buffers, Drivers, Receivers, Transceiver made by Texas Instruments in a QSOP-20 package with 20 pins. 0℃~+70℃ 15mA 4.75V~5.25V 500uA 64mA 8 8ns@5V,50pF CD74FCT Output enable Tri-State QSOP-20 Buffers, Drivers, Receivers, Transceivers.
PCBKit's library has its KiCad symbol (74xx:74HC240, from KiCad's library) and its footprint (Package_SO:QSOP-20_3.9x8.7mm_P0.635mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C3755571).
Symbol
Footprint
Order codes
1- CD74FCT240ATQMLCSC C3755571
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 CD74FCT240ATQM?
Yes. The symbol is 74xx:74HC240 and the footprint Package_SO:QSOP-20_3.9x8.7mm_P0.635mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the CD74FCT240ATQM?
QSOP-20, with 20 pins. Its footprint is drawn on this page.
Where is the CD74FCT240ATQM datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the CD74FCT240ATQM?
JLCPCB lists it as part C3755571, with 0 in stock; the sellers' links on this page open their listings.
What can replace the CD74FCT240ATQM?
Parts like it in the library: the CY74FCT2244CTQCT by Texas Instruments, the 74LVQ240QSC by onsemi, the 74LVQ241QSC by onsemi and the ML65541CK by onsemi. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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