
Overview
The SN74AS74N3 is a flip Flop made by Texas Instruments with 14 pins. 0ns 0℃~+70℃ 105MHz 16mA 2 2.5ns@5V,50pF、3.5ns@5V,50pF 20mA 2mA 4.5V~5.5V 4.5ns 74AS Series D-Type Rising Edge Set and Reset - Flip Flops.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:SN74AC74N, from EasyEDA) and its footprint (EasyEDA_Cloud:PDIP-14_L19.3-W6.5-P2.54-LS7.6-BL, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C3825877).
Symbol
Footprint
Parameters
14- Clock Frequency
- 105MHz
- Current - Output High(IOH)
- 2mA
- Current - Output Low(IOL)
- 20mA
- Function
- Set and Reset
- Hold Time
- 0ns
- Number of Elements
- 2
- Operating Temperature
- 0℃~+70℃
- Propagation Delay
- 2.5ns@5V,50pF;3.5ns@5V,50pF
- Quiescent Current
- 16mA
- Series
- 74AS Series
- Setup Time
- 4.5ns
- Trigger Type
- Rising Edge
- Type
- D-Type
- Voltage - Supply
- 4.5V~5.5V
Order codes
1- SN74AS74N3LCSC C3825877
Pinout
14| Pin | Name | Type |
|---|---|---|
| 1 | 1CLR# | Unspecified |
| 2 | 1D | Unspecified |
| 3 | 1CLK | Unspecified |
| 4 | 1PRE# | Unspecified |
| 5 | 1Q | Unspecified |
| 6 | 1Q# | Unspecified |
| 7 | GND | Unspecified |
| 8 | 2Q# | Unspecified |
| 9 | 2Q | Unspecified |
| 10 | 2PRE# | Unspecified |
| 11 | 2CLK | Unspecified |
| 12 | 2D | Unspecified |
| 13 | 2CLR# | Unspecified |
| 14 | VCC | Unspecified |
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Is there a KiCad symbol and footprint for the SN74AS74N3?
Yes. The symbol is EasyEDA_Cloud:SN74AC74N and the footprint EasyEDA_Cloud:PDIP-14_L19.3-W6.5-P2.54-LS7.6-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.
Where is the SN74AS74N3 datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the SN74AS74N3?
JLCPCB lists it as part C3825877, with 0 in stock; the sellers' links on this page open their listings.
What can replace the SN74AS74N3?
Parts like it in the library: the SN74HCS74D by Texas Instruments, the SN74HCS74PW by Texas Instruments, the SN74HCS74QDRQ1 by Texas Instruments and the SN74AS109AD by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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