

Overview
The 74ACT574PC is a flip Flop made by onsemi in a PDIP-20 package with 20 pins. -40℃~+85℃ 1 110MHz 11ns@5V,50pF 24mA 24mA 4.5V~5.5V 4.5pF 40uA 74ACT Series 8 D-Type Rising Edge Tri-State PDIP-20 Flip Flops ROHS.
PCBKit's library has its KiCad symbol (74xx:74LS574, from KiCad's library) and its footprint (Package_DIP:DIP-20_W8.89mm_SMDSocket_LongPads, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C3825789). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
13- Clock Frequency
- 110MHz
- Current - Output High(IOH)
- 24mA
- Current - Output Low(IOL)
- 24mA
- Input Capacitance
- 4.5pF
- Number of Bits per Element
- 8
- Number of Elements
- 1
- Operating Temperature
- -40℃~+85℃
- Propagation Delay
- 11ns@5V,50pF
- Quiescent Current
- 40uA
- Series
- 74ACTSeries
- Trigger Type
- Rising Edge
- Type
- D-Type
- Voltage - Supply
- 4.5V~5.5V
Order codes
1- 74ACT574PCLCSC C3825789
Pinout
20| Pin | Name | Type |
|---|---|---|
| 1 | OE | Input |
| 2 | D0 | Input |
| 3 | D1 | Input |
| 4 | D2 | Input |
| 5 | D3 | Input |
| 6 | D4 | Input |
| 7 | D5 | Input |
| 8 | D6 | Input |
| 9 | D7 | Input |
| 10 | GND | Power in |
| 11 | Cp | Input |
| 12 | Q7 | Tri-state |
| 13 | Q6 | Tri-state |
| 14 | Q5 | Tri-state |
| 15 | Q4 | Tri-state |
| 16 | Q3 | Tri-state |
| 17 | Q2 | Tri-state |
| 18 | Q1 | Tri-state |
| 19 | Q0 | Tri-state |
| 20 | VCC | Power in |
Open-source boards using it
All 1- 2 layers150 × 90 mm

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Is there a KiCad symbol and footprint for the 74ACT574PC?
Yes. The symbol is 74xx:74LS574 and the footprint Package_DIP:DIP-20_W8.89mm_SMDSocket_LongPads, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the 74ACT574PC?
PDIP-20, with 20 pins. Its footprint is drawn on this page.
Where is the 74ACT574PC datasheet?
onsemi publishes it: the Datasheet link on this page opens it.
Where can I order the 74ACT574PC?
JLCPCB lists it as part C3825789, with 0 in stock; the sellers' links on this page open their listings.
What can replace the 74ACT574PC?
Parts like it in the library: the 74VHC273N by onsemi, the SN74AHC273N by Texas Instruments, the SN74AHC273PW by Texas Instruments and the 74VHC273FT by Toshiba. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the 74ACT574PC?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
874VHC273N
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PDIP-20-40℃~+125℃ 1 110MHz 11ns@5V,50pF 2.5pF 2V~5.5V 4uA 74AHC Series 8 8mA 8mA D-Type Reset Rising Edge PDIP-20 Flip Flops ROHSTexas InstrumentsFlip FlopsSN74AHC273PW
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SSOP-20-40℃~+125℃ 1 110MHz 11ns@5V,50pF 1ns 2.5pF 2V~5.5V 4.5ns 4uA 74AHC Series 8 8mA 8mA Asynchronous D-Type Reset Rising Edge SSOP-20 Flip Flops ROHSTexas InstrumentsFlip FlopsCD74AC74E
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