
Overview
The 74HCT240DB is a buffer, Driver, Transceiver made by Nexperia in a SSOP-20-5.2mm package with 20 pins. -40℃~+125℃ 1 160uA 4.5V~5.5V 6mA 6mA 74HCT 8 9ns@5V,15pF Tri-State SSOP-20-5.2mm Buffers, Drivers, Receivers, Transceivers ROHS.
PCBKit's library has its KiCad symbol (74xx:74HCT240, 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 C547477).
Symbol
Footprint
Parameters
11- Current - Output High(IOH)
- 6mA
- Current - Output Low(IOL)
- 6mA
- Features
- Output enable
- Logic Family
- 74HCT
- Number of Bits per Element
- 8
- Number of Elements
- 1
- Operating Temperature
- -40℃~+125℃
- Propagation Delay
- 9ns@5V,15pF
- Quiescent Current
- 160uA
- Voltage - Supply
- 4.5V~5.5V
- output type
- Tri-State
Order codes
2- 74HCT240DB,112LCSC C547477
- 74HCT240DB,118LCSC C547478
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 |
Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/nexperia/74HCT240DB" title="74HCT240DB in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/nexperia/74HCT240DB.jpg" alt="74HCT240DB" width="1200" height="900">[](https://pcbkit.io/parts/nexperia/74HCT240DB)Questions
Is there a KiCad symbol and footprint for the 74HCT240DB?
Yes. The symbol is 74xx:74HCT240 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 74HCT240DB?
SSOP-20-5.2mm, with 20 pins. Its footprint is drawn on this page.
Where is the 74HCT240DB datasheet?
Nexperia publishes it: the Datasheet link on this page opens it.
Where can I order the 74HCT240DB?
JLCPCB lists it as part C547477, with 0 in stock; the sellers' links on this page open their listings.
What can replace the 74HCT240DB?
Parts like it in the library: the SN74LVTH244ADB by Texas Instruments, the CY74FCT2541TQC by Infineon Technologies, the 74ABT244DB by Nexperia and the 74ABT245DB by Nexperia. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Parts like it
8SN74LVTH244ADB
SSOP-20-208mil-40℃~+85℃ 190uA 2 2.3ns@3.3V,50pF 2.7V~3.6V 32mA 4 64mA 74LVTH Tri-State Unidirectional SSOP-20 Buffers, Drivers, Receivers, Transceivers ROHSTexas InstrumentsBuffer/Driver/TransceiverCY74FCT2541TQC
SSOP-20-40℃~+85℃ 1 12mA 15mA 200uA 4.75V~5.25V 74FCT 8 8ns@5V Power-off isolation、Edge rate controllable Schmitt trigger Tri-State SSOP-20 Buffers, Drivers, Receivers, TransceiversInfineon TechnologiesBuffer/Driver/Transceiver74ABT244DB
SSOP-20-208mil-40℃~+85℃ 1 250uA 32mA 4.5V~5.5V 64mA 74ABT 8 Tri-State SSOP-20-208mil Buffers, Drivers, Receivers, Transceivers ROHSNexperiaBuffer/Driver/Transceiver74ABT245DB
SSOP-20-208mil-40℃~+85℃ 1 250uA 32mA 4.5V~5.5V 64mA 74ABT 8 Bidirectional Output enable、Hot-swap support Tri-State SSOP-20-208mil Buffers, Drivers, Receivers, Transceivers ROHSNexperiaBuffer/Driver/Transceiver74HC240DB
SSOP-20-208mil-40℃~+125℃ 1 160uA 2V~6V 7.8mA 7.8mA 74HC 8 StandardCMOS Tri-State SSOP-20-208mil Buffers, Drivers, Receivers, Transceivers ROHSNexperiaBuffer/Driver/Transceiver74HC241DB
SSOP-20-208mil-40℃~+125℃ 160uA 2 2V~6V 4 7.8mA 7.8mA 74HC 9ns@4.5V,50pF Tri-State Unidirectional SSOP-20-208mil Buffers, Drivers, Receivers, Transceivers ROHSNexperiaBuffer/Driver/Transceiver74HC244DB
SSOP-20-208mil-40℃~+125℃ 160uA 2 2V~6V 4 7.8mA 7.8mA 74HC 9ns@5V,15pF Tri-State SSOP-20-208mil Buffers, Drivers, Receivers, Transceivers ROHSNexperiaBuffer/Driver/Transceiver74HC245DB
SSOP-20-208mil-40℃~+125℃ 1 160uA 18ns@4.5V,50pF 2V~6V 6mA 6mA 74HC 8 Bidirectional Output enable StandardCMOS Tri-State SSOP-20-208mil Buffers, Drivers, Receivers, Transceivers ROHSNexperiaBuffer/Driver/Transceiver