Skip to main content
Log in
STMicroelectronics STM32L063C8U6 — Microcontrollers & Processors (MCU / MPU / DSP)

STM32L063C8U6 ARM Cortex-M0+ MCU, 32 MHz, 64 KB Flash

MPNSTM32L063C8U6
Active

STMicroelectronics STM32L063C8U6, ARM Cortex-M0+ 32-bit MCU, 32 MHz, 64 KB Flash, 8 KB RAM, 2 KB EEPROM, USB, I²C, SPI, UART, 37 I/O, 1.65 V to 3.6 V, -40°C to 85°C, 48-UFQFPN.

$2.6360Ref. price · indicative, final on quote
STMicroelectronics STM32L063C8U6 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM32L063C8U6 specifications
ParameterValue
SeriesSTM32L0
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.65V ~ 3.6V
Operating temperature-40°C ~ 85°C (TA)
Speed32MHz
PackageTray
RAM size8K x 8
Core size32-Bit Single-Core
EEPROM size2K x 8
PeripheralsBrown-out Detect/Reset, DMA, I²S, LCD, POR, PWM, WDT
ConnectivityI²C, IrDA, SPI, UART/USART, USB
Number of i (O)37
Core processorARM® Cortex®-M0+
Case48-UFQFN Exposed Pad
Data convertersA/D 10x12b; D/A 1x12b
Program memory size64KB (64K x 8)

Product details

Memory and peripheral fit — what the 64 KB Flash, 8 KB RAM, and 2 KB EEPROM mean

The EEPROM is the standout — it saves an external serial EEPROM for configuration or calibration data, shrinking board area and BOM cost. The 8 KB RAM is tight for heavy buffering; if your application streams USB audio or runs a real-time OS with multiple stacks, budget the RAM carefully. The 64 KB Flash is typical for a sensor hub, simple HMI controller, or USB dongle firmware.

Supply range and operating temperature — battery and industrial ready

If your design needs 105°C or 125°C, this is not the variant — look at the STM32L0 extended-temp siblings.

Connectivity and peripherals — USB, I²C, SPI, UART, LCD drive

It also integrates a segment LCD controller, which is rare in this package size — useful for battery-powered meters or handheld instruments with a simple glass LCD. The 37 I/O lines in a 48-pin package leave room for a parallel display or keypad matrix.

Package and footprint — 48-UFQFPN with exposed pad

The pad is not optional — without it, the junction temperature rises quickly at higher clock speeds or with multiple peripherals active.

Frequently asked questions

Does STM32L063C8U6 support USB?

Yes, the connectivity list includes USB, along with I²C, IrDA, SPI, and UART/USART. This is a USB full-speed device controller, suitable for USB-to-serial bridges or HID-class peripherals.

What are the alternatives to STM32L063C8U6 in the same family?

Within the STM32L0 series, pin-compatible alternatives include the STM32L053C8U6 (same Flash/RAM without USB) and the STM32L073C8U6 (larger Flash/RAM with USB). The STM32L063C8U6 sits in the middle — it offers USB and EEPROM without the higher memory density of the L073.