
Overview
The 74S40DC is a logic Gate made by Texas Instruments in a CDIP-14 package with 14 pins. 0℃~+70℃ 2 2V 3mA 4 4.75V~5.25V 44mA 60mA 6ns@5V,150pF 74S Series 800mV NAND Gate CDIP-14 Logic Gates.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:74H20PC, from EasyEDA) and its footprint (EasyEDA_Cloud:CDIP-14_L20.0-W6.8-P2.54-LS7.8-BL, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C4470806).
Symbol
Footprint
Parameters
12- Current - Output High(IOH)
- 3mA
- Current - Output Low(IOL)
- 60mA
- Input Logic Level - High
- 2V
- Input Logic Level - Low
- 800mV
- Input Number
- 4
- Logic Type
- NAND Gate
- Number of Channels
- 2
- Operating Temperature
- 0℃~+70℃
- Propagation Delay
- 6ns@5V,150pF
- Quiescent Current
- 44mA
- Series
- 74S Series
- Voltage - Supply
- 4.75V~5.25V
Order codes
1- 74S40DCLCSC C4470806
Pinout
14| Pin | Name | Type |
|---|---|---|
| 1 | A1 | Unspecified |
| 2 | A2 | Unspecified |
| 3 | NC | Unspecified |
| 4 | A3 | Unspecified |
| 5 | A4 | Unspecified |
| 6 | Y1# | Unspecified |
| 7 | GND | Unspecified |
| 8 | Y2# | Unspecified |
| 9 | B4 | Unspecified |
| 10 | B3 | Unspecified |
| 11 | NC | Unspecified |
| 12 | B2 | Unspecified |
| 13 | B1 | Unspecified |
| 14 | VCC | Unspecified |
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Is there a KiCad symbol and footprint for the 74S40DC?
Yes. The symbol is EasyEDA_Cloud:74H20PC and the footprint EasyEDA_Cloud:CDIP-14_L20.0-W6.8-P2.54-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 74S40DC?
CDIP-14, with 14 pins. Its footprint is drawn on this page.
Where is the 74S40DC datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the 74S40DC?
JLCPCB lists it as part C4470806, with 0 in stock; the sellers' links on this page open their listings.
What can replace the 74S40DC?
Parts like it in the library: the SN54LS08J by Texas Instruments, the CD4011BF3A by Texas Instruments, the CD54HCT32F by Texas Instruments and the SNJ5404J by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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