
Overview
The SN74LS171N is a flip Flop made by Texas Instruments with 16 pins. 0℃~+70℃ 1 10uA 20MHz 20ns 25ns@5V,15pF 4 4.5pF 4.75V~5.25V 400uA 5ns 74LS Series 8mA Asynchronous Complementary D-Type Reset Rising Edge - Flip Flops.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:SN74LS171N, from EasyEDA) and its footprint (EasyEDA_Cloud:PDIP-16_L19.6-W6.5-P2.54-LS7.9-BL, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C3826448).
Symbol
Footprint
Parameters
18- Clock Frequency
- 20MHz
- Current - Output High(IOH)
- 400uA
- Current - Output Low(IOL)
- 8mA
- Function
- Reset
- Hold Time
- 5ns
- Input Capacitance
- 4.5pF
- Number of Bits per Element
- 4
- Number of Elements
- 1
- Operating Temperature
- 0℃~+70℃
- Output Type
- Complementary type
- Propagation Delay
- 25ns@5V,15pF
- Quiescent Current
- 10uA
- Series
- 74LS Series
- Setup Time
- 20ns
- Synchronous/Asynchronous
- Asynchronous
- Trigger Type
- Rising Edge
- Type
- D-Type
- Voltage - Supply
- 4.75V~5.25V
Order codes
1- SN74LS171NLCSC C3826448
Pinout
16| Pin | Name | Type |
|---|---|---|
| 1 | 1Q# | Unspecified |
| 2 | 2Q# | Unspecified |
| 3 | 2Q | Unspecified |
| 4 | 2D | Unspecified |
| 5 | 3D | Unspecified |
| 6 | 3Q | Unspecified |
| 7 | 3Q# | Unspecified |
| 8 | GND | Unspecified |
| 9 | 4Q# | Unspecified |
| 10 | 4Q | Unspecified |
| 11 | 4D | Unspecified |
| 12 | CLK | Unspecified |
| 13 | CLR# | Unspecified |
| 14 | 1D | Unspecified |
| 15 | 1Q | Unspecified |
| 16 | VCC | Unspecified |
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Is there a KiCad symbol and footprint for the SN74LS171N?
Yes. The symbol is EasyEDA_Cloud:SN74LS171N and the footprint EasyEDA_Cloud:PDIP-16_L19.6-W6.5-P2.54-LS7.9-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.
Where is the SN74LS171N datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the SN74LS171N?
JLCPCB lists it as part C3826448, with 0 in stock; the sellers' links on this page open their listings.
What can replace the SN74LS171N?
Parts like it in the library: the 74LVC2G74DP,125-JSM by JSMSEMI, the TC4013BF(EL,N,F) by Toshiba, the TC4013BP(N,F) by Toshiba and the CD74HC73M(LX) by lingxingic. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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