My Inquiry
My Account
STMicroelectronics STM8AL3136TAY
- Part No.:
- STM8AL3136TAY
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
STM8AL3136TAY.pdf
- Description:
- IC MCU 8BIT 8KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,629
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
STM8AL3136TAY from STMicroelectronics is an AEC-Q100 qualified automotive-grade 8-bit ultra-low-power MCU featuring 32 Kbyte Flash, 2 Kbyte RAM, 1 Kbyte data EEPROM, 12-bit ADC (25 channels, up to 1 Mbps), 12-bit DAC with output buffer, two ultra-low-power comparators, RTC with BCD calendar and auto-wakeup (0.95 ppm resolution), and support for LIN 2.0/1.3, IrDA, and ISO 7816 interfaces. It operates from 1.8 V to 3.6 V across –40 °C to 125 °C and targets battery-powered automotive body electronics.
For engineers reviewing the STM8AL3136TAY datasheet, STM8AL3136TAY pinout, STM8AL3136TAY application, or STM8AL3136TAY equivalent, key selection criteria include ultra-low-power operation (400 nA Halt with PDR), automotive qualification (AEC-Q100), integrated LCD driver capability (though not enabled in this variant), and SWIM-based non-intrusive debugging support.
Technical Context
The STM8AL3136TAY implements a Harvard-architecture STM8 core with 3-stage pipeline, delivering 16 CISC MIPS at 16 MHz. Its clock system integrates dual crystal oscillators (1–16 MHz HSE and 32 kHz LSE), factory-trimmed 16 MHz RC, and 38 kHz low-consumption RC, all managed by a clock security system.
Power management includes five configurable low-power modes-Wait, low-power Run (5.1 μA), low-power Wait (3 μA), active-Halt with full RTC (1.3 μA), and Halt with PDR (400 nA)-with fast 4.7 µs wakeup from Halt. The device supports memory-mapped peripherals including DMA (4 channels), advanced control timer (TIM1), and dual watchdogs (window + independent).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | STM8 8-bit Harvard, 3-stage pipeline, 16 MIPS peak at 16 MHz |
| Operating Voltage | 1.8 V to 3.6 V (down to 1.65 V in power-down mode) |
| Temperature Range | –40 °C to +125 °C, AEC-Q100 Grade 0 qualified |
| Low-Power Halt Current | 400 nA with PDR enabled - enables multi-year battery life in always-on automotive sensors |
| ADC Performance | 12-bit, 25-channel, 1 MSPS sampling rate with internal temp sensor and reference voltage |
| DAC Output | 12-bit with integrated output buffer on PB4–PB6 pins - supports analog actuator control without external op-amp |
| RTC Resolution | 0.95 ppm with auto-wakeup from Halt - enables precise timekeeping in sleep-mode telematics modules |
Pinout & Package
LQFP32 package (7 × 7 mm, 0.8 mm pitch), RoHS-compliant, ECOPACK2 certified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O domain operation under automotive transients |
| NRST | Active-low reset input | Supports ultra-low-power POR/PDR and programmable voltage detector (PVD) for robust system recovery |
| SWIM | Single-wire interface for debug | Enables non-intrusive programming and real-time debugging without dedicated JTAG pins |
| PA0–PA7, PB0–PB7, PC0–PC7, PD0–PD7 | General-purpose I/Os | Up to 41 mappable GPIOs with interrupt capability; PA0 supports high-sink LED driver (20 mA) |
| CLK, OSC_IN/OSC_OUT | External clock interface | Supports 1–16 MHz HSE crystal or external clock source for timing-critical CAN/LIN synchronization |
| USART1_TX/RX | Asynchronous serial interface | Hardware LIN 2.0/1.3 and ISO 7816 support - enables direct connection to automotive door module ECUs |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power Halt mode | 400 nA consumption with PDR - extends battery life in parking sensors and tire pressure monitors |
| Integrated 12-bit DAC | Output buffer on PB4–PB6 eliminates need for external amplification in HVAC actuator control |
| Dual ultra-low-power comparators | One rail-to-rail, one fixed-threshold; both support wake-up from Halt - enables threshold-triggered intrusion detection |
| SWIM debug interface | Single-pin, non-intrusive on-chip debugging - reduces PCB footprint and test complexity in space-constrained modules |
| Automotive qualification | AEC-Q100 Grade 0 (–40 °C to +125 °C) - validated for under-hood and chassis-mounted applications |
Applications
| Body Control Module (BCM) | Smart Rearview Mirror |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, interior lighting, and mirror folding in modern vehicles. IC Role / Device Role / Timing Role: Main microcontroller executing LIN slave firmware, managing GPIO-driven actuators, and monitoring switch inputs via ultra-low-leakage I/Os (50 nA). Use Value: 400 nA Halt current enables always-on monitoring without draining 12 V battery; integrated DAC drives mirror motor bias circuits directly. | Use Scenario: Real-time glare adjustment, auto-dimming, and ambient light sensing in premium rearview mirrors. IC Role / Device Role / Timing Role: Sensor fusion hub processing photodiode and temperature inputs via 12-bit ADC, generating analog dimming control via 12-bit DAC. Use Value: On-chip temp sensor and 1.3 μA active-Halt RTC allow accurate thermal compensation and time-stamped event logging during vehicle sleep. |
| Tire Pressure Monitoring System (TPMS) | Seat Occupancy Detection |
Use Scenario: Wireless pressure/temperature sensing node mounted inside tire, powered by coin-cell battery. IC Role / Device Role / Timing Role: Ultra-low-power data acquisition MCU sampling piezoresistive sensor and RF transmitter control logic. Use Value: 3 μA low-power Wait mode and 4.7 µs Halt wakeup minimize active time per measurement cycle - extends 10-year battery life target. | Use Scenario: Capacitive or pressure-based occupant classification in automotive front passenger seat. IC Role / Device Role / Timing Role: Signal conditioner and decision engine using dual comparators for threshold-based occupancy state detection. Use Value: Rail-to-rail comparator with Halt wakeup triggers immediate ECU response upon seat load change - meets FMVSS 208 deployment timing requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power automotive MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM8AL3L46TAY | Includes integrated LCD controller (4×28 segments) and step-up converter; identical core, memory, and peripheral set otherwise | Required for automotive instrument clusters or center-stack displays with segment LCD | Select when LCD driving capability is needed; pinout differs due to LCD segment assignments |
| RL78/F13-GB | Renesas RL78 core (16-bit), 32 Kbyte Flash, 2.7–5.5 V operation, 1.24 μA STOP mode, no integrated DAC | Broad industrial and consumer use; lacks AEC-Q100 Grade 0 rating and LIN 2.0 hardware support | Consider for non-automotive cost-sensitive designs requiring higher voltage tolerance and lower code density |
Compared with STM8AL3L46TAY, the STM8AL3136TAY omits LCD circuitry to reduce cost and power in non-display applications; versus RL78/F13-GB, it offers tighter automotive qualification, lower deep-sleep current, and native LIN protocol acceleration - critical for body electronics compliance.
Availability
STM8AL3136TAY is available at Aetrix Electronics and suitable for automotive body control modules, smart rearview mirrors, tire pressure monitoring systems, and seat occupancy detection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for STM8AL3136TAY includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and automotive-grade components since 1987.
The STM8AL3x series targets ultra-low-power automotive applications demanding AEC-Q100 qualification, extended temperature operation, and minimal quiescent current - specifically engineered for battery-backed body electronics and sensor nodes.
FAQ
What is the maximum operating frequency and core architecture of the STM8AL3136TAY?
The STM8AL3136TAY features an 8-bit STM8 core with Harvard architecture and a 3-stage pipeline, achieving a maximum operating frequency of 16 MHz and delivering up to 16 CISC MIPS. It uses a single-cycle instruction execution model optimized for deterministic real-time response in automotive control loops.
Does the STM8AL3136TAY support LIN communication, and which hardware peripherals enable it?
Yes, the STM8AL3136TAY supports LIN 1.3 and LIN 2.0 protocols via its USART1 peripheral, which includes dedicated LIN break detection, sync field handling, and checksum generation. No external transceiver is required for basic LIN slave functionality, though a physical layer transceiver (e.g., TLE7259) is needed for bus connection.
What are the lowest power consumption modes and their typical current draw?
The lowest power mode is Halt with PDR, drawing 400 nA at 25 °C and 1.8 V. Active-Halt with full RTC consumes 1.3 μA, low-power Wait draws 3 μA, and low-power Run draws 5.1 μA at 1.8 V - all measured with Flash execution disabled and peripherals powered down per datasheet conditions.
Is the STM8AL3136TAY pin-compatible with other devices in the STM8AL3x family?
No - the STM8AL3136TAY (LQFP32) shares package footprint only with other 32-pin variants like STM8AL3138TAY and STM8AL3L46TAY, but pin functions differ significantly between LCD-enabled (STM8AL3Lxx) and non-LCD (STM8AL31xx) subfamilies due to segment driver routing. Always verify pin mapping against Table 5 in DS7106 Rev 9.
STM8AL3136TAY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 32-LQFP
- Series:
- STM8A
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- STM8A
- Core Size:
- 8-Bit
- Speed:
- 16MHz
- Connectivity:
- I2C, IrDA, LINbus, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 30
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 1K x 8
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.65V ~ 3.6V
- Data Converters:
- A/D 22x12b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM8AL3136TAY FAQ
1.How can I place an order for STM8AL3136TAY through Aetrix?
Please submit a Request for Quotation (RFQ) for STM8AL3136TAY on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for STM8AL3136TAY reliable?
The price and inventory of STM8AL3136TAY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM8AL3136TAY is usually 5 days.
3.What payment methods are accepted for STM8AL3136TAY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM8AL3136TAY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM8AL3136TAY?
STM8AL3136TAY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM8AL3136TAY order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for STM8AL3136TAY?
For technical support, including STM8AL3136TAY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM8AL3136TAY requirements.
6.How does Aetrix verify that STM8AL3136TAY is sourced from the original manufacturer or authorized distributors?
All STM8AL3136TAY products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STM8AL3136TAY meets industry standards.
7.What is the process for return or replacement of STM8AL3136TAY?
All STM8AL3136TAY units undergo pre-shipment inspection (PSI). If there is an issue with STM8AL3136TAY, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The STM8AL3136TAY part is unused and in its original packaging.
Return procedure for STM8AL3136TAY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM8AL3136TAY Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
