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STMicroelectronics STM8AL3L46TAY — Microcontrollers & Processors (MCU / MPU / DSP)

ST STM8AL3L46TAY 8-bit MCU, 16 MHz, 16 KB Flash, 32-LQFP

MPNSTM8AL3L46TAY
NRND

STMicroelectronics STM8A series STM8AL3L46TAY 8-bit MCU, STM8 core, 16 MHz, 16 KB Flash, 2K x 8 RAM, 1K x 8 EEPROM, 1.65V-3.6V, -40°C to 85°C, 32-LQFP (7x7 mm), 29 I/O, A/D 21x12b, D/A 1x12b.

$1.9410Ref. price · indicative, final on quote
STMicroelectronics STM8AL3L46TAY datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM8AL3L46TAY specifications
ParameterValue
SeriesSTM8A
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.65V ~ 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, POR, PWM, WDT
ConnectivityI²C, IrDA, LINbus, SPI, UART/USART
Number of i (O)29
Core processorSTM8
Case32-LQFP
Data convertersA/D 21x12b; D/A 1x12b
Program memory size16KB (16K x 8)

Product details

16 MHz 8-bit MCU with integrated mixed-signal peripherals

The STMicroelectronics STM8AL3L46TAY is an 8-bit MCU from the STM8A automotive-grade series, built around the STM8 core running at 16 MHz. The 32-LQFP package (7x7 mm) provides 29 I/O lines for board-level interfacing.

NRND status — plan your last-time buy

ST has flagged the STM8AL3L46TAY for phase-out, meaning it remains orderable for existing production runs but a last-time-buy window may be in effect.

The STM8 core runs at 16 MHz. The 2 KB of RAM limits data buffer depth.

Frequently asked questions

What is STM8AL3L46TAY's listed speed?

The core runs at 16 MHz, which is the maximum clock frequency for the STM8 CPU in this device.