CD74HCT221M
Texas InstrumentsExtended
Reset input、Adjustable pulse width、Dual edge triggering SOIC-16 Monostable Multivibrators
- Part id
- ti/CD74HCT221M
- Category
- Monostable Multivibrators
- Package
- SOIC-16
- Pins
- 16
- In stock
- 0 at JLCPCB (C19121000)
Overview
The CD74HCT221M is a monostable Multivibrator made by Texas Instruments in a SOIC-16 package with 16 pins. Reset input、Adjustable pulse width、Dual edge triggering SOIC-16 Monostable Multivibrators.
PCBKit's library has its KiCad symbol (74xx:74LS221, from KiCad's library) and its footprint (Package_SO:SOIC-16_3.9x9.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C19121000).
Symbol
Footprint
Pinout
16| Pin | Name | Type |
|---|---|---|
| 1 | A | Input |
| 2 | B | Input |
| 3 | CLR | Input |
| 4 | Q | Output |
| 5 | Q | Output |
| 6 | Cext | Input |
| 7 | RCext | Input |
| 8 | GND | Power in |
| 9 | A | Input |
| 10 | B | Input |
| 11 | CLR | Input |
| 12 | Q | Output |
| 13 | Q | Output |
| 14 | Cext | Input |
| 15 | RCext | Input |
| 16 | VCC | Power in |
Parts like it
8
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Questions
Is there a KiCad symbol and footprint for the CD74HCT221M?
Yes. The symbol is 74xx:74LS221 and the footprint Package_SO:SOIC-16_3.9x9.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the CD74HCT221M?
SOIC-16, with 16 pins. Its footprint is drawn on this page.
Where is the CD74HCT221M datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the CD74HCT221M?
JLCPCB lists it as part C19121000, with 0 in stock; the sellers' links on this page open their listings.
What can replace the CD74HCT221M?
Parts like it in the library: the 74HC123D by Nexperia, the CD14538BM96 by Texas Instruments, the CD4528BM/TR by HGSEMI and the CD4538BM(LX) by lingxingic. Check their datasheets: a part that fits the footprint may still differ in its ratings.