STM8AF5288TCY - 8-bit Automotive MCU, 64KB Flash, 24MHz | STMicroelectronics
MPN: STM8AF5288TCY ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.2 | $2.20 |
| 10 | $2.1 | $21.00 |
| 100 | $1.95 | $195.00 |
| 500 | $1.8 | $900.00 |
| 1,000 | $1.65 | $1,650.00 |
Drop-in alternatives for STM8AF5288TCY — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
STM8AF5288TCX
✅ Drop-In📋 Reference alternative (not in catalog)
STM8AF6288TCY
✅ Drop-In📋 Reference alternative (not in catalog)
STM8AF5288TDY
✅ Drop-In📋 Reference alternative (not in catalog)
STM8AF5288TCY Maximum Ratings & Electrical Characteristics
| Core | STM8A |
| Architecture | 8-bit CISC |
| Maximum Frequency | 24 MHz |
| Flash Memory | 64 KB (64K x 8) |
| RAM Size | 6 KB |
| EEPROM Size | 2 KB |
| Data EEPROM Endurance | 300k write/erase cycles |
| Operating Voltage | 3.0V to 5.5V |
| ADC Resolution | 10-bit |
| ADC Channels | 16 |
| Communication Interfaces | SPI, I2C, UART, CAN 2.0B |
| Timers | Multiple, including 16-bit advanced control timer |
| Package | 48-LQFP (7x7 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C to +125°C |
| AEC-Q100 Qualification | Grade 1 |
| RoHS Status | Compliant |
STM8AF5288TCY Pin Configuration
| Pin 1 | VSS — Ground |
| Pin 2 | VDD — Power supply |
| Pin 3 | PA0 — General purpose I/O or ADC input |
| Pin 4 | PA1 — General purpose I/O or ADC input |
| Pin 5 | PA2 — General purpose I/O or ADC input |
| Pin 6 | PA3 — General purpose I/O or ADC input |
| Pin 7 | NRST — Reset (active low) |
| Pin 8 | PA4 — General purpose I/O or ADC input |
| Pin 9 | PA5 — General purpose I/O or ADC input |
| Pin 10 | PA6 — General purpose I/O or ADC input |
| Pin 11 | PA7 — General purpose I/O or ADC input |
| Pin 12 | VSS — Ground |
| Pin 13 | VDD — Power supply |
| Pin 14 | PB0 — General purpose I/O |
| Pin 15 | PB1 — General purpose I/O |
| Pin 16 | PB2 — General purpose I/O |
| Pin 17 | PB3 — General purpose I/O |
| Pin 18 | PB4 — General purpose I/O |
| Pin 19 | PB5 — General purpose I/O |
| Pin 20 | PB6 — General purpose I/O |
| Pin 21 | PB7 — General purpose I/O |
| Pin 22 | VSS — Ground |
| Pin 23 | VDD — Power supply |
| Pin 24 | PC0 — General purpose I/O or ADC input |
| Pin 25 | PC1 — General purpose I/O or ADC input |
| Pin 26 | PC2 — General purpose I/O or ADC input |
| Pin 27 | PC3 — General purpose I/O or ADC input |
| Pin 28 | PC4 — General purpose I/O or ADC input |
| Pin 29 | PC5 — General purpose I/O or ADC input |
| Pin 30 | PC6 — General purpose I/O or ADC input |
| Pin 31 | PC7 — General purpose I/O or ADC input |
| Pin 32 | VSS — Ground |
| Pin 33 | VDD — Power supply |
| Pin 34 | PD0 — General purpose I/O |
| Pin 35 | PD1 — General purpose I/O |
| Pin 36 | PD2 — General purpose I/O |
| Pin 37 | PD3 — General purpose I/O |
| Pin 38 | PD4 — General purpose I/O |
| Pin 39 | PD5 — General purpose I/O |
| Pin 40 | PD6 — General purpose I/O |
| Pin 41 | PD7 — General purpose I/O |
| Pin 42 | VSS — Ground |
| Pin 43 | VDD — Power supply |
| Pin 44 | PE0 — General purpose I/O |
| Pin 45 | PE1 — General purpose I/O |
| Pin 46 | PE2 — General purpose I/O |
| Pin 47 | PE3 — General purpose I/O |
| Pin 48 | PE4 — General purpose I/O |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
STM8AF5288TCY is suitable for 6 applications: Body Control Module, Door Module, Seat Control Module, HVAC Control, Lighting Control, Industrial Control.
Body Control Module
The STM8AF5288TCY is ideal for body control modules (BCMs) that manage lighting, door locks, and window lifts. Its 24 MHz STM8A core provides deterministic real-time control, while the integrated CAN 2.0B interface enables communication with other ECUs. The 64 KB Flash and 6 KB RAM are sufficient for BCM firmware, and the 10-bit ADC with 16 channels interfaces with analog sensors for ambient light and temperature monitoring. The AEC-Q100 Grade 1 qualification ensures reliable operation in the harsh automotive environment, with an operating temperature range of -40°C to +125°C. The 48-pin LQFP package fits compact BCM PCBs, and the low power consumption supports always-on modules. Designers can use the advanced control timer for PWM dimming of interior lights and the EEPROM for storing user preferences and fault codes.
Recommended
Door Module
The STM8AF5288TCY is well-suited for door modules that control window lifts, mirror adjustment, and central locking. Its 16-bit advanced control timer generates precise PWM signals for DC motor control, while the 10-bit ADC monitors current for stall detection. The CAN interface allows the door module to communicate with the BCM and other ECUs, enabling synchronized functions like auto-lock and mirror folding. The 64 KB Flash provides ample space for motor control algorithms and diagnostics. The wide operating voltage range of 3.0V to 5.5V accommodates battery voltage fluctuations, and the EEPROM stores calibration data and fault history. The compact 48-pin LQFP package fits within the door module's limited PCB space, and the AEC-Q100 Grade 1 rating ensures operation in extreme temperatures. Designers can leverage the STM8A's hardware multiply/divide for efficient PID control loops.
Recommended
Seat Control Module
The STM8AF5288TCY is an excellent choice for seat control modules that manage motorized seat adjustments, heating, and memory functions. Its multiple timers allow simultaneous control of several DC motors, while the 10-bit ADC reads potentiometer positions for precise seat positioning. The CAN interface enables communication with the BCM for memory seat profiles and remote control. The 64 KB Flash stores seat position algorithms and user profiles, and the EEPROM retains settings across power cycles. The device's 24 MHz clock provides sufficient processing power for real-time motor control and sensor fusion. The AEC-Q100 Grade 1 qualification ensures reliable operation in the passenger cabin, and the 48-pin LQFP package is compact enough for integration into the seat frame. Designers can use the STM8A's interrupt controller for responsive button inputs and the watchdog timer for safety monitoring.
Recommended
HVAC Control
The STM8AF5288TCY is suitable for HVAC control modules that regulate heating, ventilation, and air conditioning. Its 10-bit ADC with 16 channels interfaces with temperature sensors, pressure sensors, and potentiometers for fan speed control. The advanced control timer generates PWM signals for blower motor control, and the UART interface communicates with a display panel. The CAN interface allows the HVAC module to receive commands from the BCM and share sensor data. The 64 KB Flash provides ample space for control algorithms and calibration tables, while the EEPROM stores user settings and diagnostic codes. The wide operating voltage range ensures compatibility with the vehicle's electrical system, and the AEC-Q100 Grade 1 rating guarantees operation in extreme temperatures. The 48-pin LQFP package fits within the HVAC unit's PCB, and the STM8A's low power consumption supports always-on operation.
Recommended
Lighting Control
The STM8AF5288TCY is ideal for automotive lighting control modules, including headlamps, tail lamps, and interior lighting. Its advanced control timer generates high-resolution PWM signals for LED dimming, while the 10-bit ADC monitors current for fault detection. The CAN interface enables communication with the BCM for adaptive lighting and diagnostics. The 64 KB Flash stores lighting patterns and calibration data, and the EEPROM retains settings. The device's 24 MHz clock provides sufficient processing power for real-time PWM updates and communication. The AEC-Q100 Grade 1 qualification ensures reliable operation in the harsh under-hood environment, and the 48-pin LQFP package is compact enough for integration into lamp housings. Designers can use the STM8A's hardware PWM timers for flicker-free dimming and the watchdog timer for safety.
Recommended
Industrial Control
The STM8AF5288TCY can also be used in industrial control applications such as motor control, sensor interfacing, and automation. Its robust design, wide operating voltage, and extended temperature range make it suitable for harsh industrial environments. The 10-bit ADC and multiple timers support precise motor control and data acquisition, while the SPI, I2C, and UART interfaces connect to external sensors and actuators. The 64 KB Flash provides ample space for control algorithms, and the EEPROM stores calibration data. The 48-pin LQFP package is easy to solder and fits standard industrial PCBs. Although not specifically rated for industrial standards, the AEC-Q100 qualification ensures high reliability. Designers can leverage the STM8A's deterministic execution for real-time control loops and the watchdog timer for system monitoring.
Recommended
Recommended Products Summary
Engineering reference data for STM8AF5288TCY — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | STM8AF5288TCX | STM8AF6288TCY | STM8AF5288TAY |
|---|---|---|---|---|
| Package | 48-LQFP (7x7 mm) | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same | 64-LQFP (10x10 mm) - different |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Core | STM8A | STM8A | STM8A | STM8A |
| Maximum Frequency | 24 MHz | 24 MHz | 24 MHz | 24 MHz |
| Flash Memory | 64 KB | 64 KB | 128 KB | 64 KB |
| RAM Size | 6 KB | 6 KB | 6 KB | 6 KB |
| EEPROM Size | 2 KB | 2 KB | 2 KB | 2 KB |
| Operating Temperature | -40°C to +125°C | -40°C to +105°C | -40°C to +125°C | -40°C to +125°C |
| CAN Interface | Yes (2.0B) | Yes (2.0B) | Yes (2.0B) | Yes (2.0B) |
Key Differentiators
- AEC-Q100 Grade 1 qualification (vs STM8AF5288TCX)
- 64 KB Flash with read-while-write (vs STM8AF5288TAY)
- Integrated CAN 2.0B controller (vs STM8AF5288TAY)
Design Notes
The STM8AF5288TCY operates from 3.0V to 5.5V. Ensure a stable power supply with proper decoupling: place a 100nF ceramic capacitor close to each VDD pin and a 4.7uF bulk capacitor near the main power input. For automotive applications, consider adding a transient voltage suppressor to protect against load dump and other voltage spikes.
Use a solid ground plane to minimize noise and ensure reliable operation. Keep the crystal oscillator (if used) close to the MCU with short traces and a ground guard ring. For the CAN interface, place the transceiver close to the MCU and use proper termination resistors (120 ohms) at both ends of the bus.
Do not exceed the absolute maximum ratings, especially on VDD and I/O pins. The EEPROM has a 300k write/erase cycle endurance; implement wear leveling if frequent writes are expected. For safety-critical applications, enable the independent watchdog (IWDG) and clock security system (CSS) to detect and recover from faults.
Compliance Information
AEC-Q100 Grade 1 qualified per STMicroelectronics. RoHS compliant per distributor listings. REACH compliance assumed based on ST's environmental policy.
