Overview
The 74LS74ASC is a flip Flop made by Texas Instruments in a SOIC-14 package with 14 pins. 0ns 0℃~+70℃ 1 2 20MHz 20ns 35ns@5V,50pF 4.75V~5.25V 400uA 74LS Series 8mA 8mA Asynchronous Complementary D-Type Rising Edge Set and Reset SOIC-14 Flip Flops ROHS.
PCBKit's library has its KiCad symbol (74xx:74LS74, from KiCad's library) and its footprint (Package_SO:SO-14_3.9x8.65mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C3826221).
Symbol
Footprint
Order codes
1- 74LS74ASCLCSC C3826221
Pinout
14| Pin | Name | Type |
|---|---|---|
| 1 | R | Input |
| 2 | D | Input |
| 3 | C | Input |
| 4 | S | Input |
| 5 | Q | Output |
| 6 | Q | Output |
| 7 | GND | Power in |
| 8 | Q | Output |
| 9 | Q | Output |
| 10 | S | Input |
| 11 | C | Input |
| 12 | D | Input |
| 13 | R | Input |
| 14 | VCC | Power in |
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Is there a KiCad symbol and footprint for the 74LS74ASC?
Yes. The symbol is 74xx:74LS74 and the footprint Package_SO:SO-14_3.9x8.65mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the 74LS74ASC?
SOIC-14, with 14 pins. Its footprint is drawn on this page.
Where is the 74LS74ASC datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the 74LS74ASC?
JLCPCB lists it as part C3826221, with 0 in stock; the sellers' links on this page open their listings.
What can replace the 74LS74ASC?
Parts like it in the library: the 74HC74D by Nexperia, the CD4013BM96 by Texas Instruments, the SN74HCT74D by Texas Instruments and the SN74HC74D by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Parts like it
8
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SOP-14-40℃~+125℃ 1 15ns 2 2V~6V 3.5pF 37ns@6V,50pF 3ns 40uA 5.2mA 5.2mA 74HC Series 82MHz Asynchronous Complementary D-Type Rising Edge Set and Reset SOP-14 Flip Flops ROHSNexperiaFlip FlopsMC14013BD
SOIC-14-55℃~+125℃ 1 100ns@15V,50pF 14MHz 2 3V~18V 4000B Series 4uA 5pF 7.5ns、10ns、20ns 7.5ns、10ns、20ns 8.8mA 8.8mA Complementary D-Type Rising Edge Set and Reset SOP-14 Flip Flops ROHSonsemiFlip FlopsMC74HC74AD
SOIC-14-55℃~+125℃ 1 10pF 14ns 17ns@6V,50pF 2 2V~6V 2uA 35MHz 3ns 5.2mA 5.2mA 74HC Series Asynchronous Complementary D-Type Rising Edge Set and Reset SOIC-14 Flip Flops ROHSonsemiFlip Flops