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STMicroelectronics STM8AL3168TAY — Microcontrollers & Processors (MCU / MPU / DSP)

ST STM8AL3168TAY 8-bit MCU, 16 MHz, 32 KB Flash, 48-LQFP

MPNSTM8AL3168TAY
NRND

ST STM8A series 8-bit microcontroller, STM8AL3168TAY, 16 MHz core, 32KB (32K x 8) FLASH, 2K x 8 RAM, 1K x 8 EEPROM, 41 I/O, 48-LQFP, -40°C to 85°C.

$4.6300Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM8AL3168TAY 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)41
Core processorSTM8
Case48-LQFP
Data convertersA/D 25x12b; D/A 1x12b
Program memory size32KB (32K x 8)

Product details

NRND status — plan your BOM transition

This means ST has flagged the part for eventual end-of-life; new production runs are not guaranteed, and the primary supply channel is the independent surplus and broker market. For a BOM line that requires long-term availability, the NRND status demands a transition plan — either a last-time buy or a qualification to a successor.

The STM8 core runs at 16 MHz, which delivers roughly 16 MIPS for register-to-register operations. That throughput is adequate for periodic sensor polling, LIN bus messaging, and PWM generation in automotive body or industrial control applications. It is not a candidate for high-speed signal processing or real-time audio — the 8-bit architecture and moderate clock limit instruction-heavy loops. Watch the bus turnaround when using the 12-bit ADC at its full sampling rate; the DMA peripheral helps offload data movement.

Memory map: 32 KB Flash, 2K RAM, 1K EEPROM

Program memory is 32 KB of Flash, with 2K x 8 of SRAM and a separate 1K x 8 EEPROM block.

Peripheral set and analog integration

The DAC is useful for a single analog output or as a reference for external circuitry. The 41 I/O in the 48-LQFP package leave most pins available after power and ground are allocated.

For long-term BOM stability, ask about the official successor or a pin-compatible drop-in from the STM8A family.

Frequently asked questions

Is STM8AL3168TAY obsolete or NRND?

The STM8AL3168TAY is NRND (Not Recommended for New Designs). It is not formally discontinued, but ST advises against using it in new projects. Existing designs should plan for a transition to a successor or secure last-time-buy inventory.

Where can I buy STM8AL3168TAY?

The STM8AL3168TAY is available through independent distribution channels. We source and quote it to order against an RFQ — availability and current pricing are confirmed at quote time.

What is the replacement for STM8AL3168TAY?

No official successor is listed in the available records. For a pin-compatible drop-in, contact ST or check the STM8A family for active variants with similar memory and peripheral maps. We can assist in identifying a suitable cross during the RFQ process.

What is STM8AL3168TAY's operating voltage?

The supply voltage range is 1.65 V to 3.6 V, allowing operation from a single Li-ion cell or 1.8 V regulated rail.