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STMicroelectronics STM8L151C6U6 — Microcontrollers & Processors (MCU / MPU / DSP)

STM8L151C6U6 8-bit MCU, 16 MHz, 32 KB Flash, -40 to 85°C

MPNSTM8L151C6U6
Active

ST STM8L EnergyLite 8-bit MCU, STM8L151C6U6, 16MHz, 32KB Flash, 2K x 8 RAM, 1K x 8 EEPROM, 1.8V-3.6V, 41 I/O, -40 to 85°C, 48-UFQFPN.

$1.6627Ref. price · indicative, final on quote
STMicroelectronics STM8L151C6U6 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM8L151C6U6 specifications
ParameterValue
SeriesSTM8L EnergyLite
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.8V ~ 3.6V
Operating temperature-40°C ~ 85°C (TA)
Speed16MHz
PackageTray
RAM size2K x 8
Core size8-Bit
EEPROM size1K x 8
PeripheralsBrown-out Detect/Reset, DMA, IR, POR, PWM, WDT
ConnectivityI²C, IrDA, SPI, UART/USART
Number of i (O)41
Core processorSTM8
Case48-UFQFN Exposed Pad
Data convertersA/D 25x12b; D/A 1x12b
Program memory size32KB (32K x 8)

Product details

STM8L151C6U6 — 8-bit MCU for low-power embedded control

The 41 general-purpose I/O lines and integrated peripherals (brown-out detect, reset, DMA, IR, POR, PWM, WDT) cover typical industrial and consumer control loops.

The wide supply range of 1.8V to 3.6V lets this MCU run directly from a single Li-ion cell or a regulated 3.3V rail, saving a regulator in cost-sensitive designs.

Peripherals and connectivity — what's on the bus

Connectivity interfaces cover I²C, IrDA, SPI, and UART/USART, so it can talk to common serial peripherals, infrared transceivers, or a host controller.

Package and board mounting

Housed in a 48-UFQFN Exposed Pad package (supplier device package 48-UFQFPN 7x7 mm), this is a surface-mount part. The tray shipping medium is fine for hand assembly or small reels; for volume reflow, order the tape-and-reel variant.

Frequently asked questions

What is the core size of STM8L151C6U6?

The STM8L151C6U6 has an 8-bit core processor, the STM8.

How many I/O pins does STM8L151C6U6 have?

It provides 41 general-purpose I/O lines.

What is the closest pin-compatible alternative to STM8L151C6U6?

Within the STM8L EnergyLite family, higher-density Flash variants (e.g., 64 KB or 128 KB) share the same 48-UFQFPN footprint and pinout, so a firmware-only migration is possible without a board spin. No exact second-source from another manufacturer is listed in the official cross-reference.