
Overview
The SN74HCT240NS is a buffers, Drivers, Receivers, Transceiver made by Texas Instruments in a SOIC-20-208mil package with 20 pins. -40℃~+85℃ 12ns@5.5V,50pF 2 4 4.5V~5.5V 6mA 6mA 74HCT 80uA Tri-State Unidirectional SOIC-20-208mil Buffers, Drivers, Receivers, Transceivers ROHS.
PCBKit's library has its KiCad symbol (74xx:74HCT240, from KiCad's library) and its footprint (EasyEDA_Cloud:SOIC-20_L12.6-W5.3-P1.27-LS7.8-BL, from EasyEDA), ready for a KiCad board. 201 are in stock at JLCPCB (part C6772).
Symbol
Footprint
Parameters
12- Channel Type
- Unidirectional
- Current - Output High(IOH)
- 6mA
- Current - Output Low(IOL)
- 6mA
- Features
- Output enable
- Logic Family
- 74HCT
- Number of Bits per Element
- 4
- Number of Elements
- 2
- Operating Temperature
- -40℃~+85℃
- Propagation Delay
- 12ns@5.5V,50pF
- Quiescent Current
- 80uA
- Voltage - Supply
- 4.5V~5.5V
- output type
- Tri-State
Order codes
1- SN74HCT240NSRLCSC C6772
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/ti/SN74HCT240NS" title="SN74HCT240NS in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/ti/SN74HCT240NS.jpg" alt="SN74HCT240NS" width="1200" height="900">[](https://pcbkit.io/parts/ti/SN74HCT240NS)Questions
Is there a KiCad symbol and footprint for the SN74HCT240NS?
Yes. The symbol is 74xx:74HCT240 and the footprint EasyEDA_Cloud:SOIC-20_L12.6-W5.3-P1.27-LS7.8-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the SN74HCT240NS?
SOIC-20-208mil, with 20 pins. Its footprint is drawn on this page.
Where is the SN74HCT240NS datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the SN74HCT240NS?
JLCPCB lists it as part C6772, with 201 in stock; the sellers' links on this page open their listings.
What can replace the SN74HCT240NS?
Parts like it in the library: the SN74HC245NSR by Texas Instruments, the SN74HCT245NSR by Texas Instruments, the SN74HCT244NSR by Texas Instruments and the SN74HC244NSR(LX) by lingxingic. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Parts like it
8SN74HC245NSR
SOIC-20-208mil-40℃~+85℃ 1 21ns@4.5V,50pF 2V~6V 7.8mA 7.8mA 74HC 8 80uA Bidirectional Tri-State SOIC-20-208mil Buffers, Drivers, Receivers, Transceivers ROHSTexas InstrumentsBuffers, Drivers, Receivers, TransceiversSN74HCT245NSR
SOIC-20-208mil-40℃~+85℃ 1 14ns@5.5V,50pF 4.5V~5.5V 6mA 6mA 74HCT 8 80uA Bidirectional Tri-State SOIC-20-208mil Buffers, Drivers, Receivers, Transceivers ROHSTexas InstrumentsBuffers, Drivers, Receivers, TransceiversSN74HCT244NSR
SOIC-20-208mil-40℃~+85℃ 2 25ns@5.5V,50pF 4 4.5V~5.5V 6mA 6mA 74HCT 80uA Tri-State Unidirectional SOIC-20-208mil Buffers, Drivers, Receivers, Transceivers ROHSTexas InstrumentsBuffers, Drivers, Receivers, TransceiversSN74HC244NSR(LX)
SOIC-20-208mil-40℃~+125℃ 11ns@4.5V,50pF 2 2V~6V 4 7.8mA 7.8mA 74HC 8uA Tri-State Unidirectional SOIC-20-208mil Buffers, Drivers, Receivers, Transceivers ROHSlingxingicBuffers, Drivers, Receivers, TransceiversSN74HC541NSR(LX)
SOIC-20-208mil-40℃~+125℃ 1 12ns@4.5V,50pF 2V~6V 7.8mA 7.8mA 74HC 8 8uA Tri-State Unidirectional SOIC-20-208mil Buffers, Drivers, Receivers, Transceivers ROHSlingxingicBuffers, Drivers, Receivers, TransceiversSN74HC541NSR
SOIC-20-208mil-40℃~+85℃ 1 23ns@4.5V,50pF 2V~6V 7.8mA 7.8mA 74HC 8 80uA Tri-State SOIC-20-208mil Buffers, Drivers, Receivers, Transceivers ROHSTexas InstrumentsBuffers, Drivers, Receivers, TransceiversSN74LS244NSR
SOIC-20-208mil0℃~+70℃ 15mA 18ns@5V,45pF 2 24mA 4 4.75V~5.25V 54mA 74LS Schmitt trigger Tri-State Unidirectional SOIC-20-208mil Buffers, Drivers, Receivers, Transceivers ROHSTexas InstrumentsBuffers, Drivers, Receivers, TransceiversSN74ACT244NS
SOIC-20-208mil-40℃~+85℃ 2 24mA 24mA 4 4.5V~5.5V 74ACT 80uA 9.5ns@5V,50pF Tri-State Unidirectional SOIC-20-208mil Buffers, Drivers, Receivers, Transceivers ROHSTexas InstrumentsBuffers, Drivers, Receivers, Transceivers