Overview
The CD74HCT74EX is a flip Flop made by Texas Instruments in a PDIP-14 package with 14 pins. -55℃~+125℃ 1 10pF 2 35ns@4.5V,50pF 4.5V~5.5V 4mA 4uA 74HCT Series Complementary type Set and Reset PDIP-14 Flip Flops.
PCBKit's library has its KiCad symbol (74xx:74HCT74, from KiCad's library) and its footprint (Package_DIP:DIP-14_W8.89mm_SMDSocket_LongPads, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C3827494).
Symbol
Footprint
Order codes
1- CD74HCT74EXLCSC C3827494
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 CD74HCT74EX?
Yes. The symbol is 74xx:74HCT74 and the footprint Package_DIP:DIP-14_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 CD74HCT74EX?
PDIP-14, with 14 pins. Its footprint is drawn on this page.
Where is the CD74HCT74EX datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the CD74HCT74EX?
JLCPCB lists it as part C3827494, with 0 in stock; the sellers' links on this page open their listings.
What can replace the CD74HCT74EX?
Parts like it in the library: the SN74HC74N(XBLW) by XBLW, the SN74LS74N(XBLW) by XBLW, the CD4013BCD by GREENMICRO and the CD4013BE(LX) by lingxingic. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Parts like it
8
SN74HC74N(XBLW)
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DIP-14-40℃~+125℃ 1 2 27ns@6V,50pF 28MHz 2V~6V 74HC Series 80uA Falling Edge JK-Type Reset DIP-14 Flip Flops ROHSlingxingicFlip FlopsSN74LS74N(LX)
DIP-14-40℃~+125℃ 1 15ns 17ns@4.5V,15pF 2 2V~6V 3.5pF 40uA 5.2mA 5.2mA 74LS Series 82MHz Asynchronous Complementary D-Type Rising Edge Set and Reset DIP-14 Flip Flops ROHSlingxingicFlip FlopsTC4013BP(N,F)
DIP-14-40℃~+85℃ 1 120uA 2 20MHz 3.4mA 3.4mA 3V~18V 5pF 90ns@15V,50pF Complementary D-Type Reset Rising Edge DIP-14 Flip Flops ROHSToshibaFlip Flops