STM32L021F4U6
STMicroelectronicsExtended
-40℃~+85℃ 1.65V~3.6V 12bit 16 16KB 2KB 32 Bit 32MHz 512Byte ARM Cortex-M0+ Built-in FLASH UFQFPN-20(3x3) Microcontrollers (MCU/MPU/SOC) ROHS
- Part id
- st/STM32L021F4U6
- Category
- Microcontrollers (MCU, MPU, SOC)
- Package
- UFQFPN-20(3x3)
- Pins
- 20
- In stock
- 5 at JLCPCB (C3216885)
Overview
The STM32L021F4U6 is a microcontroller made by STMicroelectronics in a UFQFPN-20(3x3) package with 20 pins. -40℃~+85℃ 1.65V~3.6V 12bit 16 16KB 2KB 32 Bit 32MHz 512Byte ARM Cortex-M0+ Built-in FLASH UFQFPN-20(3x3) Microcontrollers (MCU/MPU/SOC) ROHS.
PCBKit's library has its KiCad symbol (MCU_ST_STM32L0:STM32L021F4Ux, from KiCad's library) and its footprint (Package_DFN_QFN:ST_UFQFPN-20_3x3mm_P0.5mm, from KiCad's library), ready for a KiCad board. 5 are in stock at JLCPCB (part C3216885).
Symbol
Footprint
Pinout
20| Pin | Name | Type |
|---|---|---|
| 1 | PC14 | Input/output |
| 2 | PC15 | Input/output |
| 3 | NRST | Input |
| 4 | VDDA | Power in |
| 5 | PA0 | Input/output |
| 6 | PA1 | Input/output |
| 7 | PA4 | Input/output |
| 8 | PA5 | Input/output |
| 9 | PA6 | Input/output |
| 10 | PA7 | Input/output |
| 11 | PB1 | Input/output |
| 12 | VSS | Power in |
| 13 | VDD | Power in |
| 14 | PA9 | Input/output |
| 15 | PA10 | Input/output |
| 16 | PA13 | Input/output |
| 17 | PA14 | Input/output |
| 18 | PB6 | Input/output |
| 19 | PB7 | Input/output |
| 20 | PB9 | Input/output |
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Questions
Is there a KiCad symbol and footprint for the STM32L021F4U6?
Yes. The symbol is MCU_ST_STM32L0:STM32L021F4Ux and the footprint Package_DFN_QFN:ST_UFQFPN-20_3x3mm_P0.5mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the STM32L021F4U6?
UFQFPN-20(3x3), with 20 pins. Its footprint is drawn on this page.
Where is the STM32L021F4U6 datasheet?
STMicroelectronics publishes it: the Datasheet link on this page opens it.
Where can I order the STM32L021F4U6?
JLCPCB lists it as part C3216885, with 5 in stock; the sellers' links on this page open their listings.
What can replace the STM32L021F4U6?
Parts like it in the library: the STM32L011F4U6 by STMicroelectronics, the STM32L011F3U6 by STMicroelectronics, the STM32L011F4U3 by STMicroelectronics and the STM32C011F4U7 by STMicroelectronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.