Manufacturer Part Number

STM8AF6388TCY

Description

8-bit automotive microcontroller from STMicroelectronics STM8A series. It comes with 64KB Flash program memory and is housed in a 48-pin LQFP package. Designed for automotive applications with high temperature tolerance and reliable operation. Has strong on-chip peripherals to support various serial communications and power management features. Not recommended for new designs; mainly for supporting existing designs. Comes in tray packaging.

Specifications

Core Processor: STM8A

Core Size: 8-bit

Maximum Clock Speed: 24MHz

Program Memory: 64KB Flash (64K x 8)

EEPROM: 2KB (2K x 8)

RAM: 6KB (6K x 8)

Number of I/O: 38

Supply Voltage Range: 3V to 5.5V

Operating Temperature Range: -40°C to +125°C (TA)

Data Converters: 10-channel 10-bit ADC

Connectivity Interfaces: I2C, LINbus, SPI, UART/USART

Peripherals: PWM, Watchdog Timer (WDT), Power-on Reset (POR), Brown-out Detection/Reset

Oscillator: Internal

Package: 48-LQFP (7mm x 7mm)

Moisture Sensitivity Level: MSL 3 (168 hours)

Device Structure

The chip has a single 8-bit STM8A core, equipped with integrated Flash, RAM, and EEPROM. Includes up to 38 general-purpose I/O pins. All functional blocks, including analog (ADC), digital interfaces, and timers, are embedded inside the microcontroller. The entire device is encapsulated in a 48-pin plastic LQFP surface-mount package for automated assembly.

Performance Characteristics

Operates reliably across industrial and automotive temperature grades (-40°C to 125°C)

Stable operation at both 3V and 5V supply levels

Fast processing for 8-bit operations at up to 24MHz core clock

High integration with multiple serial interfaces for communication

Robust on-chip protection features, including brown-out reset and watchdog

Fast data acquisition through 10-channel 10-bit analog-to-digital converter

Robust for automotive environment due to AEC-Q100 qualification

Application Environments

Automotive electronics such as body controllers, instrument clusters, and diagnostic modules

Industrial devices requiring reliable 8-bit processing and multiple communication interfaces

Applications needing high temperature tolerance and robust operation in harsh environments

Legacy designs using STM8A microcontrollers

Selection Guidelines

Best suited for existing designs already based on the STM8A 8-bit architecture

Choose for applications needing up to 64KB Flash, 2KB EEPROM, 6KB RAM, and wide power supply range

Compatible when requiring high temperature endurance and multiple communication protocols

Avoid for new designs, as it is not recommended for new projects; consider newer series

Usage Considerations

Ensure the ambient operating temperature does not exceed -40°C to +125°C

Proper handling and storage are necessary due to MSL 3 rating (sensitive to moisture)

Use recommended ESD and soldering precautions for LQFP surface-mount devices

Not for new designs; check with STMicroelectronics on long-term availability

Utilize built-in safety features—brown-out and watchdog—to safeguard applications

Valid for automotive systems due to full AEC-Q100 qualification and RoHS3 compliance

Potential Equivalent/Replacement Models

Direct substitute: STM8AF6288TCY

For broader alternatives or equivalent models, consult the Ariat-Tech sales team for availability or for recommending appropriate alternatives within the STM8 or STM32 families, based on current application requirements and supply status.

Always confirm compatibility of memory size, package, and interface needs before switching to a replacement model.

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