STM8AF62A6TCY - 8-bit Automotive MCU, 128KB Flash, LQFP-64 | STMicroelectronics
MPN: STM8AF62A6TCY β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.5 | $4.50 |
| 10 | $4.05 | $40.50 |
| 100 | $3.6 | $360.00 |
| 500 | $3.24 | $1,620.00 |
| 1,000 | $2.88 | $2,880.00 |
Drop-in alternatives for STM8AF62A6TCY β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
STM8AF62A8TCY
β Drop-Inπ Reference alternative (not in catalog)
STM8AF62A6TCX
β Drop-Inπ Reference alternative (not in catalog)
R5F10BBF
β‘ Same Packageπ Reference alternative (not in catalog)
STM8AF62A6TCY Maximum Ratings & Electrical Characteristics
| Core | STM8A 8-bit |
| Maximum Frequency | 24 MHz |
| Flash Memory | 128 KB |
| RAM | 6 KB |
| EEPROM | 2 KB |
| Supply Voltage | 3.0 V to 5.5 V |
| Operating Temperature | -40C to +125C |
| Package | LQFP-64 (10x10 mm) |
| Mounting Type | Surface Mount |
| ADC | 10-bit, up to 16 channels |
| Timers | Multiple 16-bit timers |
| Communication Interfaces | 2x UART, 2x SPI, 2x I2C, CAN 2.0B |
| GPIO | Up to 52 I/O pins |
| AEC-Q100 | Grade 1 |
| RoHS | Compliant |
STM8AF62A6TCY Pin Configuration
| Pin 1 | VDD β Digital power supply |
| Pin 12 | VSS β Digital ground |
| Pin 24 | VDDA β Analog power supply |
| Pin 25 | VSSA β Analog ground |
| Pin 32 | NRST β Reset (active low) |
| Pin 33 | PA0 β GPIO/ADC input |
| Pin 34 | PA1 β GPIO/ADC input |
| Pin 48 | PB0 β GPIO/SPI clock |
| Pin 49 | PB1 β GPIO/SPI MOSI |
| Pin 50 | PB2 β GPIO/SPI MISO |
| Pin 56 | PC0 β GPIO/UART TX |
| Pin 57 | PC1 β GPIO/UART RX |
| Pin 64 | VDD β Digital power supply |
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
STM8AF62A6TCY is suitable for 6 applications: Automotive Body Control Module (BCM), LIN Slave Node, CAN Gateway, Sensor Interface, Industrial Control, Smart Actuator.
Automotive Body Control Module (BCM)
The STM8AF62A6TCY is ideal for BCMs due to its CAN interface, wide temperature range, and rich peripherals. It manages lighting, wipers, and door locks, with the 128 KB Flash storing complex control algorithms. The 10-bit ADC reads sensor inputs, while the CAN bus communicates with other ECUs. Its low power modes help reduce quiescent current in standby, and the AEC-Q100 qualification ensures reliability in harsh automotive environments.
Recommended
LIN Slave Node
In LIN networks, the STM8AF62A6TCY acts as a slave node for window lifts, mirrors, and seat controls. Its UART can be configured for LIN, and the 2 KB EEPROM stores calibration data. The 24 MHz core handles LIN protocol efficiently, and the low-power Halt mode reduces current draw when idle. The device's small LQFP-64 package fits in compact modules, and its 5V operation simplifies power supply design.
Recommended
CAN Gateway
The STM8AF62A6TCY can serve as a low-cost CAN gateway, bridging multiple CAN buses. Its integrated CAN 2.0B controller and 128 KB Flash allow storing routing tables. The 6 KB RAM buffers messages, and the 24 MHz core ensures low latency. The device's multiple UARTs and SPI enable connection to other peripherals, and its automotive qualification makes it suitable for in-vehicle networks.
Recommended
Sensor Interface
The STM8AF62A6TCY interfaces with various automotive sensors, such as temperature, pressure, and position sensors. Its 10-bit ADC with up to 16 channels reads analog sensor outputs, while the I2C and SPI interfaces connect to digital sensors. The 2 KB EEPROM stores calibration coefficients, and the wide temperature range ensures accurate readings in extreme conditions. The device's low power consumption is beneficial for battery-powered sensor modules.
Recommended
Industrial Control
Beyond automotive, the STM8AF62A6TCY is used in industrial control systems for motor control, PLCs, and automation. Its robust peripherals, including timers and PWM, enable precise motor control. The 24 MHz core handles real-time tasks, and the wide supply voltage range allows direct connection to 24V industrial supplies with a regulator. The device's ESD protection and wide temperature range make it suitable for factory environments.
Recommended
Smart Actuator
The STM8AF62A6TCY is used in smart actuators for HVAC, lighting, and valve control. Its PWM timers drive actuators, and the ADC reads position feedback. The CAN or LIN interface allows remote control, and the 128 KB Flash stores complex control algorithms. The device's low power modes are ideal for battery-operated actuators, and its small package fits in compact housings.
Recommended
Recommended Products Summary
Engineering reference data for STM8AF62A6TCY β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | STM8AF62A8TCY | STM8AF62A6TDY | STM8AF62A6TCX | R5F10BBF |
|---|---|---|---|---|---|
| Package | LQFP-64 | LQFP-64 | LQFP-48 | LQFP-64 | LQFP-64 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | Renesas Electronics |
| Core | STM8A 8-bit | STM8A 8-bit | STM8A 8-bit | STM8A 8-bit | RL78 16-bit |
| Max Frequency | 24 MHz | 24 MHz | 24 MHz | 24 MHz | 32 MHz |
| Flash Memory | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB |
| RAM | 6 KB | 6 KB | 6 KB | 6 KB | 12 KB |
| EEPROM | 2 KB | 2 KB | 2 KB | 2 KB | 8 KB |
| ADC | 10-bit, 16 ch | 10-bit, 16 ch | 10-bit, 10 ch | 10-bit, 16 ch | 12-bit, 20 ch |
| CAN | Yes | Yes | Yes | Yes | Yes |
| AEC-Q100 | Grade 1 | Grade 1 | Grade 1 | Grade 1 | Grade 1 |
Key Differentiators
- Integrated CAN 2.0B controller (vs R5F10BBF)
- True EEPROM with 2 KB (vs R5F10BBF)
- AEC-Q100 Grade 1 qualification (vs STM8AF62A6TCX)
Design Notes
Decouple the VDD and VDDA pins with 100nF ceramic capacitors placed as close to the pins as possible. Additionally, use a 4.7uF bulk capacitor on the main supply. For VDDA, a separate LC filter (e.g., 10 ohm resistor and 1uF capacitor) can improve ADC accuracy by isolating analog noise.
For the LQFP-64 package, ensure a solid ground plane under the device. Route the crystal oscillator (if used) with short traces and keep it away from high-speed digital lines. For CAN and LIN, place the transceiver close to the MCU and use proper termination resistors (120 ohm for CAN).
Do not leave unused GPIO pins floating; configure them as outputs or enable internal pull-ups. Ensure the NRST pin has a 100nF capacitor to ground for reliable reset. When using the internal RC oscillator, note that its accuracy is +/-2%, which may not be sufficient for CAN communication; use an external crystal for CAN applications.
Compliance Information
AEC-Q100 Grade 1 qualified. RoHS compliant per STMicroelectronics product page.