

Overview
The STM32L442KCU6 is a microcontroller made by STMicroelectronics in a UFQFPN-32(5x5) package with 33 pins. -40℃~+85℃ 1.71V~3.6V 12bit 12bit 256KB 26 32 Bit 64KB 80MHz ARM Cortex-M4 Built-in FLASH UFQFPN-32(5x5) Microcontrollers (MCU/MPU/SOC) ROHS.
PCBKit's library has its KiCad symbol (MCU_ST_STM32L4:STM32L442KCUx, from KiCad's library) and its footprint (Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.45x3.45mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C2969865). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
12- ADC (Bit)
- 12bit
- CPU Core
- ARM Cortex-M4
- CPU Maximum Speed
- 80MHz
- Core Size
- 32 Bit
- DAC (Bit)
- 12bit
- Number of I/O
- 26
- Operating Temperature
- -40℃~+85℃
- Oscillator Type
- Built-in
- Program Memory Type
- FLASH
- Program Storage Size
- 256KB
- RAM Size
- 64KB
- Voltage - Supply
- 1.71V~3.6V
Order codes
1- STM32L442KCU6LCSC C2969865
Pinout
33| Pin | Name | Type |
|---|---|---|
| 1 | VDD | Power in |
| 2 | PC14 | Input/output |
| 3 | PC15 | Input/output |
| 4 | NRST | Input |
| 5 | VDDA | Power in |
| 6 | PA0 | Input/output |
| 7 | PA1 | Input/output |
| 8 | PA2 | Input/output |
| 9 | PA3 | Input/output |
| 10 | PA4 | Input/output |
| 11 | PA5 | Input/output |
| 12 | PA6 | Input/output |
| 13 | PA7 | Input/output |
| 14 | PB0 | Input/output |
| 15 | PB1 | Input/output |
| 16 | VSS | Power in |
| 17 | VDD | Power in |
| 18 | PA8 | Input/output |
| 19 | PA9 | Input/output |
| 20 | PA10 | Input/output |
| 21 | PA11 | Input/output |
| 22 | PA12 | Input/output |
| 23 | PA13 | Input/output |
| 24 | PA14 | Input/output |
| 25 | PA15 | Input/output |
| 26 | PB3 | Input/output |
| 27 | PB4 | Input/output |
| 28 | PB5 | Input/output |
| 29 | PB6 | Input/output |
| 30 | PB7 | Input/output |
| 31 | PH3 | Input/output |
| 32 | VSS | Passive |
| 33 | VSS | Passive |
Open-source boards using it
All 1- 2 layers14.5 × 22 mm

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Is there a KiCad symbol and footprint for the STM32L442KCU6?
Yes. The symbol is MCU_ST_STM32L4:STM32L442KCUx and the footprint Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.45x3.45mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the STM32L442KCU6?
UFQFPN-32(5x5), with 33 pins. Its footprint is drawn on this page.
Where is the STM32L442KCU6 datasheet?
STMicroelectronics publishes it: the Datasheet link on this page opens it.
Where can I order the STM32L442KCU6?
JLCPCB lists it as part C2969865, with 0 in stock; the sellers' links on this page open their listings.
What can replace the STM32L442KCU6?
Parts like it in the library: the STM32L431KCU6 by STMicroelectronics, the STM32L412KBU6 by STMicroelectronics, the STM32H503KBU6 by STMicroelectronics and the STM32L432KBU6 by STMicroelectronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the STM32L442KCU6?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8STM32L431KCU6
UFQFPN-32(5x5)-40℃~+85℃ 1.71V~3.6V 12bit 12bit 256KB 26 32 Bit 64KB 80MHz ARM Cortex-M4 Built-in FLASH UFQFPN-32(5x5) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)STM32L412KBU6
UFQFPN-32(5x5)-40℃~+85℃ 1.71V~3.6V 128KB 26 32 Bit 40KB 80MHz ARM Cortex-M4 Built-in FLASH UFQFPN-32(5x5) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)STM32H503KBU6
UFQFPN-32-EP(5x5)-40℃~+85℃ 1.71V~3.6V 128KB 24 250MHz 32 Bit 32KB ARM Cortex-M33 Built-in+External FLASH UFQFPN-32-EP(5x5) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)STM32L432KBU6
UFQFPN-32(5x5)-40℃~+85℃ 1.71V~3.6V 128KB 12bit 12bit 26 32 Bit 64KB 80MHz ARM Cortex-M4 Built-in FLASH UFQFPN-32(5x5) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)STM32L432KCU6
UFQFPN-32(5x5)-40℃~+85℃ 1.71V~3.6V 12bit 12bit 256KB 26 32 Bit 64KB 80MHz ARM Cortex-M4 Built-in FLASH UFQFPN-32(5x5) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)STM32L431KBU6
UFQFPN-32(5x5)-40℃~+85℃ 1.71V~3.6V 128KB 26 32 Bit 64KB 80MHz ARM Cortex-M4 Built-in FLASH UFQFPN-32(5x5) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)STM32G431K6U6
UFQFPN-32(5x5)-40℃~+85℃ 1.71V~3.6V 12bit 12bit 170MHz 26 32 Bit 32KB 32KB ARM Cortex-M4 Built-in FLASH UFQFPN-32(5x5) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)STM32WBA54KGU6
UFQFPN-32(5x5)UFQFPN-32(5x5) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)