
Overview
The CD4021BF is a shift Register made by Texas Instruments in a CDIP-16 package with 16 pins. CDIP-16 Shift Registers ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:CD4021BMT, from EasyEDA) and its footprint (EasyEDA_Cloud:CDIP-16_L19.9-W6.7-P2.54-LS7.6-BL, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C3301565).
Symbol
Footprint
Parameters
7- Clock Frequency
- 17MHz
- Function
- Parallel or Serial to Serial
- Number of Elements
- 1
- Operating Temperature
- -55℃~+125℃
- Pd - Power Dissipation
- 500mW
- Propagation Delay
- 60ns@15V,50pF
- Voltage - Supply
- 3V~18V
Order codes
1- CD4021BFLCSC C3301565
Pinout
16| Pin | Name | Type |
|---|---|---|
| 1 | P1-8 | Unspecified |
| 2 | Q6 | Unspecified |
| 3 | Q8 | Unspecified |
| 4 | P1-4 | Unspecified |
| 5 | P1-3 | Unspecified |
| 6 | P1-2 | Unspecified |
| 7 | P1-1 | Unspecified |
| 8 | VSS | Unspecified |
| 9 | PARALLEL/SERIAL CONTROL | Unspecified |
| 10 | CLOCK | Unspecified |
| 11 | SERIAL IN | Unspecified |
| 12 | Q7 | Unspecified |
| 13 | P1-5 | Unspecified |
| 14 | P1-6 | Unspecified |
| 15 | P1-7 | Unspecified |
| 16 | VDD | Unspecified |
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<iframe src="https://pcbkit.io/embed/parts/ti/CD4021BF" title="CD4021BF in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/ti/CD4021BF.jpg" alt="CD4021BF" width="1200" height="900">[](https://pcbkit.io/parts/ti/CD4021BF)Questions
Is there a KiCad symbol and footprint for the CD4021BF?
Yes. The symbol is EasyEDA_Cloud:CD4021BMT and the footprint EasyEDA_Cloud:CDIP-16_L19.9-W6.7-P2.54-LS7.6-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the CD4021BF?
CDIP-16, with 16 pins. Its footprint is drawn on this page.
Where is the CD4021BF datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the CD4021BF?
JLCPCB lists it as part C3301565, with 0 in stock; the sellers' links on this page open their listings.
What can replace the CD4021BF?
Parts like it in the library: the CD4014BF3A by Texas Instruments, the CD4021BPW by Texas Instruments, the CD4015BM96 by Texas Instruments and the CD4015BPW by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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