
CD74HC221E
Texas InstrumentsExtended
DIP-16 Monostable Multivibrators ROHS
- Part id
- ti/CD74HC221E
- Category
- Monostable Multivibrators
- Package
- DIP-16
- Pins
- 16
- In stock
- 173 at JLCPCB (C353994)
- Used on
- 1 open-source board
Overview
The CD74HC221E is a monostable Multivibrator made by Texas Instruments in a DIP-16 package with 16 pins. DIP-16 Monostable Multivibrators ROHS.
PCBKit's library has its KiCad symbol (74xx:74LS221, from KiCad's library) and its footprint (Package_DIP:DIP-16_W8.89mm_SMDSocket_LongPads, from KiCad's library), ready for a KiCad board. 173 are in stock at JLCPCB (part C353994). 1 open-source board in 1 repository on GitHub use it.
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 |
Open-source boards using it
1- 2 layers245 × 127 mm

Parts like it
8CD14538BE
DIP-16-55℃~+125℃ 100ns 100uA 2 3V~18V 4000B 6.8mA 6.8mA Complementary type Monostable Schmitt trigger DIP-16 Monostable Multivibrators ROHSTexas InstrumentsMonostable MultivibratorsSN74HC123N(LX)
DIP-16-40℃~+125℃ 2 2V~6V 30ns 4mA 74HC 8uA Monostable DIP-16 Monostable Multivibrators ROHSlingxingicMonostable MultivibratorsSN74HC123N(XBLW)
DIP-16-40℃~+125℃ 2 26ns 2V~6V 5.2mA 5.2mA 74HC 8uA Monostable Reset input、Adjustable pulse width、Retriggerable function DIP-16 Monostable Multivibrators ROHSXBLWMonostable MultivibratorsCD4538BE(LX)
DIP-16-40℃~+125℃ 1.3mA 1.3mA 2 3V~12V 4000Series 85ns Complementary type Monostable Reset input、Adjustable pulse width、Dual edge triggering、Retriggerable function DIP-16 Monostable Multivibrators ROHSlingxingicMonostable MultivibratorsSN74LS123N(LX)
DIP-16-40℃~+125℃ 2 24ns 2V~6V 5.2mA 5.2mA 74LS 8uA Monostable DIP-16 Monostable Multivibrators ROHSlingxingicMonostable MultivibratorsTC74HC123APNEWF
DIP-16-40℃~+85℃ 16ns 2 2V~6V 5.2mA 5.2mA 74HC Monostable Schmitt trigger DIP-16 Monostable Multivibrators ROHSToshibaMonostable MultivibratorsXD14538
DIP-16-40℃~+85℃ 100ns 2 3V~18V Monostable DIP-16 Monostable Multivibrators ROHSXINLUDAMonostable MultivibratorsXD4538
DIP-16-55℃~+125℃ 150ns 2 3V~15V 5uA 880uA 880uA Monostable DIP-16 Monostable Multivibrators ROHSXINLUDAMonostable Multivibrators
Questions
Is there a KiCad symbol and footprint for the CD74HC221E?
Yes. The symbol is 74xx:74LS221 and the footprint Package_DIP:DIP-16_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 CD74HC221E?
DIP-16, with 16 pins. Its footprint is drawn on this page.
Where can I order the CD74HC221E?
JLCPCB lists it as part C353994, with 173 in stock; the sellers' links on this page open their listings.
What can replace the CD74HC221E?
Parts like it in the library: the CD14538BE by Texas Instruments, the SN74HC123N(LX) by lingxingic, the SN74HC123N(XBLW) by XBLW and the CD4538BE(LX) by lingxingic. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the CD74HC221E?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.