

Overview
The SN74HCS74D is a flip Flop made by Texas Instruments in a SOIC-14 package with 14 pins. -40℃~+125℃ 0ns 1 105MHz 15ns@6V,50pF 2 2V~6V 2uA 5pF 6ns 7.8mA 7.8mA 74HCS Series Asynchronous Complementary D-Type Rising Edge Set and Reset SOIC-14 Flip Flops ROHS.
PCBKit's library has its KiCad symbol (74xx:74HC74, from KiCad's library) and its footprint (Package_SO:SOIC-14_3.9x8.7mm_P1.27mm, from KiCad's library), ready for a KiCad board. 1,620 are in stock at JLCPCB (part C2862638). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
17- Clock Frequency
- 105MHz
- Current - Output High(IOH)
- 7.8mA
- Current - Output Low(IOL)
- 7.8mA
- Function
- Set and Reset
- Input Capacitance
- 5pF
- Number of Bits per Element
- 1
- Number of Elements
- 2
- Operating Temperature
- -40℃~+125℃
- Output Type
- Complementary
- Propagation Delay
- 15ns@6V,50pF
- Quiescent Current
- 2uA
- Series
- 74HCS Series
- Setup Time
- 6ns
- Synchronous/Asynchronous
- Asynchronous
- Trigger Type
- Rising Edge
- Type
- D-Type
- Voltage - Supply
- 2V~6V
Order codes
1- SN74HCS74DRLCSC C2862638
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 |
Open-source boards using it
All 1- 2 layers91.2 × 108.2 mm

Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/ti/SN74HCS74D" title="SN74HCS74D 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/SN74HCS74D.jpg" alt="SN74HCS74D" width="1200" height="900">[](https://pcbkit.io/parts/ti/SN74HCS74D)Questions
Is there a KiCad symbol and footprint for the SN74HCS74D?
Yes. The symbol is 74xx:74HC74 and the footprint Package_SO:SOIC-14_3.9x8.7mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the SN74HCS74D?
SOIC-14, with 14 pins. Its footprint is drawn on this page.
Where is the SN74HCS74D datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the SN74HCS74D?
JLCPCB lists it as part C2862638, with 1,620 in stock; the sellers' links on this page open their listings.
What can replace the SN74HCS74D?
Parts like it in the library: the SN74HCS74QDRQ1 by Texas Instruments, the DM74AS74M by onsemi, the DM74AS74MX by onsemi and the SN74AS74AD by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the SN74HCS74D?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8SN74HCS74QDRQ1
SOIC-14-40℃~+125℃ 0ns 1 105MHz 15ns@6V,50pF 2 2V~6V 2uA 5pF 6ns 7.8mA 7.8mA 74HCS Series Asynchronous Complementary type D-Type Rising Edge Set and Reset SOIC-14 Flip Flops ROHSTexas InstrumentsFlip FlopsDM74AS74M
SOIC-140ns 0℃~+70℃ 1 105MHz 16mA 2 20mA 2mA 4.5V~5.5V 4.5ns 74AS Series 9ns@5V,50pF Asynchronous Complementary D-Type Rising Edge Set and Reset SOIC-14 Flip Flops ROHSonsemiFlip FlopsDM74AS74MX
SOIC-140ns 0℃~+70℃ 1 105MHz 16mA 2 20mA 2mA 2ns、4.5ns 4.5V~5.5V 74AS Series 9ns@5V,50pF Asynchronous Complementary D-Type Rising Edge Set and Reset SOIC-14 Flip Flops ROHSonsemiFlip FlopsSN74AS74AD
SOIC-140℃~+70℃ 1 105MHz 16mA 2 20mA 2mA 4.5V~5.5V 74AS Series 9ns@5V,50pF Complementary D-Type Rising Edge Set and Reset SOIC-14 Flip Flops ROHSTexas InstrumentsFlip FlopsSN74HCS74PW
TSSOP-14-40℃~+125℃ 0ns 1 105MHz 15ns@6V,50pF 2 2V~6V 2uA 5pF 6ns 7.8mA 7.8mA 74HCS Series Asynchronous Complementary D-Type Rising Edge Set and Reset TSSOP-14 Flip Flops ROHSTexas InstrumentsFlip FlopsSN74AS109AD
SOIC-160℃~+70℃ 1 105MHz 17mA 2 20mA 2mA 4.5V~5.5V 74AS Series 9ns@5V,50pF Complementary type JK-Type Rising Edge Set and Reset SOIC-16 Flip Flops ROHSTexas InstrumentsFlip FlopsSN74HCS74QPWRQ1
TSSOP-14-40℃~+125℃ 1 105MHz 15ns@6V,50pF 2 2V~6V 2uA 5pF 6ns 7.8mA 7.8mA 74HCS Series Asynchronous Complementary type D-Type Rising Edge Set and Reset TSSOP-14 Flip Flops ROHSTexas InstrumentsFlip FlopsDM74AS74N
DIP-140ns 0℃~+70℃ 1 105MHz 16mA 2 20mA 2mA 2ns、4.5ns 4.5V~5.5V 74AS Series 9ns@5V,50pF Asynchronous Complementary D-Type Rising Edge Set and Reset DIP-14 Flip Flops ROHSonsemiFlip Flops