2 layers100 × 100 mm
TC IO REVC
hankenken/Train_control
現在の開発は LattePanda 3 Delta 864・Windows 10・USBカメラ2台による検証ソフトです。 Windows用の導入・操作手順を参照してください。撮影・画像処理・画面表示・進路選択を本体上で行う試作で、実機出力はありません。
78 parts1
CD74HC221M96
Texas InstrumentsExtended
-55℃~+125℃ 160uA 18ns 2 2V~6V 5.2mA 5.2mA 74HC Complementary type Monostable Reset Schmitt trigger SOIC-16 Monostable Multivibrators ROHS
- Part id
- ti/CD74HC221M96
- Category
- Monostable Multivibrators
- Package
- SOIC-16
- Pins
- 16
- In stock
- 1,587 at JLCPCB (C133954)
- Used on
- 5 open-source boards
Overview
The CD74HC221M96 is a monostable Multivibrator made by Texas Instruments in a SOIC-16 package with 16 pins. -55℃~+125℃ 160uA 18ns 2 2V~6V 5.2mA 5.2mA 74HC Complementary type Monostable Reset Schmitt trigger SOIC-16 Monostable Multivibrators ROHS.
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. 1,587 are in stock at JLCPCB (part C133954). 5 open-source boards in 4 repositories 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
5- 6 layers310 × 284 mm
Osc core
Takazudo/zudo-osc-hole-field
This directory retains the rejected #38 nine-board-era schematic, PCB and route receipts at base commit 1fc6e5347308fe5e8166d5828ba3ba6fa8e101c7. It is excluded from the current ten-board manifest.
3,986 parts - 4 layers240 × 87 mm
Backplane
Ashet-Technologies/Home-Computer
A retro-inspired home-computer project.
637 parts20CERN-OHL-P-2.0 - 4 layers188 × 92 mm
Cooksense
misko/prompt2device
The separate vNext PCB skill and orchestrator package is available alongside the reference workflow below; existing projects keep their accepted toolchain until an explicit migration.
226 parts3MIT - 2 layers50 × 40 mm
TC IO REVD MINI
hankenken/Train_control
現在の開発は LattePanda 3 Delta 864・Windows 10・USBカメラ2台による検証ソフトです。 Windows用の導入・操作手順を参照してください。撮影・画像処理・画面表示・進路選択を本体上で行う試作で、実機出力はありません。
54 parts1
Parts like it
8
74HC123D
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SOP-16-55℃~+125℃ 100ns 2 3V~18V 4000B 6.8mA 6.8mA Monostable Schmitt trigger SOP-16 Monostable Multivibrators ROHSTexas InstrumentsMonostable MultivibratorsCD4528BM/TR
SOP-16-40℃~+85℃ 2 230ns 360uA 3V~15V 40XXSeries 5nA 880uA Monostable Reset input、Dual edge triggering、Retriggerable function SOP-16 Monostable Multivibrators ROHSHGSEMIMonostable MultivibratorsCD4538BM(LX)
SOP-16-40℃~+125℃ 1.3mA 1.3mA 2 3V~12V 4000Series 85ns Complementary type Monostable SOP-16 Monostable Multivibrators ROHSlingxingicMonostable MultivibratorsHEF4538BT(LX)
SOP-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 SOP-16 Monostable Multivibrators ROHSlingxingicMonostable MultivibratorsHEF4528BT
SOIC-162 35ns 4.5V~15.5V 4000B Monostable SOIC-16 Monostable Multivibrators ROHSNexperiaMonostable MultivibratorsMC14538BD
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SOIC-16-55℃~+125℃ 160uA 2 25ns 2V~6V 5.2mA 5.2mA 74HC Complementary type Monostable Schmitt trigger SOIC-16 Monostable Multivibrators ROHSTexas InstrumentsMonostable Multivibrators
Questions
Is there a KiCad symbol and footprint for the CD74HC221M96?
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 CD74HC221M96?
SOIC-16, with 16 pins. Its footprint is drawn on this page.
Where is the CD74HC221M96 datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the CD74HC221M96?
JLCPCB lists it as part C133954, with 1,587 in stock; the sellers' links on this page open their listings.
What can replace the CD74HC221M96?
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.
Which open-source boards use the CD74HC221M96?
5 boards in 4 repositories on GitHub; the most starred are listed on this page, with their KiCad files.