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STMicroelectronics STM8AL3LE88TCY
- Part No.:
- STM8AL3LE88TCY
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
STM8AL3LE88TCY.pdf
- Description:
- IC MCU 8BIT 64KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,209
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Product details
Overview
STM8AL3LE88TCY from STMicroelectronics is an AEC-Q100 Grade 1 qualified automotive 8-bit ultra-low-power MCU featuring 64 KB Flash, 2 KB data EEPROM with ECC, RTC with ±0.5 ppm digital calibration, 12-bit ADC (1 Msps, 28 channels), dual 12-bit DACs, LCD controller (8×40/4×44), AES hardware accelerator, and two ultra-low-power comparators. It operates from 1.65 V to 3.6 V across –40 °C to 125 °C and targets body control modules requiring secure, low-power timing and analog interface.
For engineers reviewing the STM8AL3LE88TCY datasheet, STM8AL3LE88TCY pinout, STM8AL3LE88TCY application, or STM8AL3LE88TCY equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification, 400 nA Halt-mode current, 4.7 µs wake-up time, LCD driver integration, and dual DAC support for analog actuator control in automotive interior systems.
Technical Context
The STM8AL3LE88TCY implements a Harvard-architecture STM8 core with 3-stage pipeline, delivering 16 CISC MIPS at 16 MHz. Its clock system integrates three oscillators: 32 kHz LSE, 1–16 MHz HSE, and factory-trimmed 16 MHz HSI with clock security system.
Low-power operation is enabled by five distinct modes-including Active-halt (1.4 µA with full RTC) and Halt (400 nA)-and ultra-low I/O leakage (50 nA per pin). The RTC supports BCD calendar, alarm interrupt, and anti-tamper detection, while the LCD controller includes integrated step-up converter for segment bias generation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | STM8 8-bit Harvard core with 3-stage pipeline; enables deterministic real-time execution and efficient code density. |
| Max Clock Frequency | 16 MHz; delivers 16 CISC MIPS peak performance for responsive control-loop execution. |
| Flash / EEPROM | 64 KB Flash with RWW and 2 KB data EEPROM with ECC; supports safe over-the-air firmware updates and robust non-volatile parameter storage. |
| ADC Resolution & Speed | 12-bit, up to 1 Msps across 28 channels; enables high-fidelity sensor acquisition (e.g., cabin temperature, humidity, position). |
| DAC Channels | Two independent 12-bit DACs with output buffers; allows simultaneous analog output for dual actuators (e.g., motorized mirror + HVAC valve). |
| RTC Accuracy | ±0.5 ppm with digital calibration; ensures precise timekeeping over temperature and voltage for infotainment scheduling and event logging. |
| Halt Mode Current | 400 nA at 3.3 V; extends battery life in always-on vehicle subsystems such as door module standby. |
| Operating Temp Range | –40 °C to +125 °C; meets under-hood and cabin deployment requirements per AEC-Q100 Grade 1. |
Pinout & Package
LQFP80 package (14 × 14 mm, 0.5 mm pitch), thermally enhanced for automotive ambient conditions; 80-pin layout supports full peripheral mapping including LCD segment/common lines, dual DAC outputs, and 67 GPIOs with interrupt capability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O domain operation; decoupling required per automotive EMC guidelines. |
| NRST | Active-low reset input | Accepts external reset with programmable BOR thresholds; supports fail-safe recovery in safety-critical functions. |
| PA0–PA7, PB0–PB7, etc. | General-purpose I/O | All 67 GPIOs support interrupt vector mapping; enables flexible signal routing for LIN/USART/I²C multiplexing. |
| PC0–PC7 | LCD segment drivers | Drive up to 40 segments in 8×40 configuration; internal step-up converter eliminates external charge pump. |
| PB4–PB6 | DAC output channels | Dedicated pins for dual DAC outputs; buffered to drive 1 kΩ loads without external op-amps. |
| OSC_IN / OSC_OUT | HSE crystal oscillator interface | Supports 1–16 MHz external crystal; used for precise timing in CAN/LIN communication and RTC reference. |
| SWIM | Single-wire interface for debug | Enables non-intrusive programming and real-time debugging via dedicated pin; no JTAG overhead. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use up to +125 °C ambient; eliminates need for additional qualification testing in Tier-1 designs. |
| Ultra-low-power RTC with tamper detection | BCD calendar + alarm + digital calibration (±0.5 ppm); enables secure timestamping and intrusion monitoring in access control systems. |
| Hardware AES accelerator | 128-bit key support with DMA-triggered encryption; offloads CPU during secure boot or firmware authentication. |
| Flexible low-power modes | Five modes including Active-halt (1.4 µA w/ RTC) and Halt (400 nA); reduces quiescent current in parked-vehicle scenarios. |
| Integrated LCD controller | 8×40 or 4×44 segment drive with on-chip step-up converter; eliminates external bias generator and saves PCB space. |
| Dual 12-bit DACs with buffers | Simultaneous analog outputs on PB4–PB6; drives actuators directly without external amplification in climate control interfaces. |
Applications
| Body Control Module (BCM) | Automotive Instrument Cluster |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, mirrors, and interior lighting. IC Role / Device Role / Timing Role: Main MCU managing LIN slave coordination, sensor polling (door ajar, rain sensor), and PWM-driven LED dimming. Use Value: 67 GPIOs enable direct switch/motor interface; ultra-low Halt current (400 nA) minimizes parasitic drain during vehicle sleep mode. |
Use Scenario: Driving segmented LCD displays for speedometer, fuel level, and warning indicators. IC Role / Device Role / Timing Role: Display controller with integrated step-up converter and BCD RTC for odometer/time display. Use Value: On-chip LCD driver eliminates external bias IC; ±0.5 ppm RTC accuracy ensures reliable trip timer and service interval tracking. |
| Climate Control Interface | Seat Position Memory System |
Use Scenario: Analog control of HVAC blend doors and fan speed via potentiometer feedback and actuator drive. IC Role / Device Role / Timing Role: Dual DAC output controller interfacing with motor drivers; 12-bit ADC reads cabin temperature and humidity sensors. Use Value: Two buffered 12-bit DACs provide precise 0–3.3 V analog setpoints; 28-channel ADC supports multi-zone sensing without external MUX. |
Use Scenario: Storing and recalling driver seat position using non-volatile memory and motor control. IC Role / Device Role / Timing Role: EEPROM-based parameter storage with ECC protection; advanced control timer (TIM1) for smooth seat motor ramping. Use Value: 2 KB data EEPROM with ECC ensures reliable retention of seat profiles over 100k write cycles; TIM1's 3-channel PWM enables synchronized multi-motor control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive ultra-low-power MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM8AL31E88TCY | No LCD controller; identical Flash/EEPROM, RTC, DAC, and low-power specs. | Suitable where display is handled externally or not required (e.g., junction box MCU). | Select when LCD functionality is unnecessary-reduces pin count and simplifies layout. |
| STM32L071KBT6 | 32-bit ARM Cortex-M0+, 128 KB Flash, 20 KB RAM; higher performance but larger code footprint and no native LCD driver. | Better for complex protocol stacks (BLE, CAN FD) but requires external LCD bias and lacks integrated tamper-detect RTC. | Choose for future-proofing with RTOS or connectivity; avoid if LCD integration and minimal BOM are critical. |
Compared with STM8AL3LE88TCY, STM8AL31E88TCY removes LCD functionality while retaining identical power, timing, and analog capabilities-ideal for cost-sensitive non-display nodes. STM32L071KBT6 offers 32-bit scalability but increases design complexity and component count due to missing on-chip LCD and calibrated RTC.
Availability
STM8AL3LE88TCY is available at Aetrix Electronics and suitable for automotive body electronics, instrument clusters, and climate control systems requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle assurance.
Supply support for STM8AL3LE88TCY 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 devices, sensors, and analog ICs for automotive, industrial, and consumer markets.
The STM8AL ultra-low-power MCU product line targets automotive body and comfort applications demanding extended battery life, functional safety readiness, and integrated peripherals-including LCD, RTC, AES, and dual DAC-to reduce system-level BOM cost and board area.
FAQ
What is the maximum operating temperature for STM8AL3LE88TCY?
The device is rated for –40 °C to +125 °C ambient temperature and qualified to AEC-Q100 Grade 1 standards. This rating is validated across all operating modes and peripheral combinations per ST's production test flow, making it suitable for under-dash and center-console deployments.
Does STM8AL3LE88TCY support hardware encryption?
Yes-it integrates a dedicated AES-128 hardware accelerator with DMA linkage, enabling zero-cycle-overhead encryption/decryption for secure boot, firmware updates, and key storage. The engine supports ECB and CBC modes and operates independently of the CPU core.
How many LCD segments can STM8AL3LE88TCY drive?
The MCU supports up to 8×40 or 4×44 segment configurations, totaling 320 segments. It includes an integrated step-up converter generating VLCD from VDD, eliminating the need for external charge pumps or bias generators in automotive-grade displays.
Is SWIM debugging supported in production firmware?
Yes-Single-Wire Interface Module (SWIM) remains active in all non-locked states and supports full-speed programming, real-time register inspection, and breakpoint debugging without halting peripheral operation. Production firmware may disable SWIM via option bytes for security.
STM8AL3LE88TCY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 48-LQFP
- Series:
- STM8A
- Packaging:
- Tray
- Product Status:
- Not For New Designs
- Programmable:
- Not Verified
- Core Processor:
- STM8
- 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:
- 41
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.65V ~ 3.6V
- Data Converters:
- A/D 25x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM8AL3LE88TCY FAQ
1.How can I place an order for STM8AL3LE88TCY through Aetrix?
Please submit a Request for Quotation (RFQ) for STM8AL3LE88TCY 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 STM8AL3LE88TCY reliable?
The price and inventory of STM8AL3LE88TCY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM8AL3LE88TCY is usually 5 days.
3.What payment methods are accepted for STM8AL3LE88TCY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM8AL3LE88TCY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM8AL3LE88TCY?
STM8AL3LE88TCY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM8AL3LE88TCY 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 STM8AL3LE88TCY?
For technical support, including STM8AL3LE88TCY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM8AL3LE88TCY requirements.
6.How does Aetrix verify that STM8AL3LE88TCY is sourced from the original manufacturer or authorized distributors?
All STM8AL3LE88TCY 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 STM8AL3LE88TCY meets industry standards.
7.What is the process for return or replacement of STM8AL3LE88TCY?
All STM8AL3LE88TCY units undergo pre-shipment inspection (PSI). If there is an issue with STM8AL3LE88TCY, 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 STM8AL3LE88TCY part is unused and in its original packaging.
Return procedure for STM8AL3LE88TCY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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