• CPU:

ARM Cortex-M4F CPU

Max Frequency: 120MHz

Supports DSP, FPU, MPU, and NVIC 

Supports JTAG and SWD Debug Interfaces

• Memory:

Code Flash: 256KB

Dedicated Data Flash: 128KB

Fast Access to Code Flash: 12ns Access Time

High Endurance Data Flash: Capable of 100K-Cycling, Supports FEE Emulation

System SRAM: 64KB

Instruction Cache: 8KB

• System:

On-Chip Boot ROM for FOTA Upgrade with UDS Protocol 

Dual DMA Engines with 16 Channels for Efficient Paralleled Data Transmissions

Flexible Module Interconnection Matrix

SysTick and RTC Timer 

• Safety:

Supports ISO26262 ASIL-B Level

Flash and SRAM with ECC Check

On-Chip Clock Monitor for Safety

On-Chip Power Monitor for Safety

On-Chip Temperature Monitor for Safety

3xCRC for Safety and Data Integrity Check

Dual Watchdogs with Independent Clock Sources, 

Supports Windows Mode

• Security:

SSE Security Engine for Encryption and Decryption

Supports AES128, SHA256, TRNG, Secured Key Storage and Unique ID 

Supports Secure Boot and MAC Authentication

Compliant with AUTOSAR SHE Standards

Meets EVITA Light HSM Requirements

• Analog:

Crystal Oscillator Frequency Range: From 8MHz to 40MHz

High Accuracy HIRC: On-Chip, 24MHz

Low Power LIRC: On-Chip, 131.072KHz

PLL: On-Chip for System Clock Generation 

SAR ADC: Dual 12-Bit, 1Msps, Optimized for Automotive Applications(totally 19ch)

Analog Comparators: Two Fast Comparators with Dedicated 8-Bit DAC for Reference

• Peripherals:

3x CAN Modules: Supports CAN 2.0 and FD

3x UART/LIN Modules: Compliant with LIN2.2 and SAE J2602

3x SPI Modules: Each with Four Chip Selects

2x I2C Modules: Supports SMBUS and 4-Wire Modes

1x SENT Module: Features Two SENT Channels

4x 16-Bit Advanced PWM Timers: totally 25- PWM Channels

2x 32-Bit Flexible Trigger Timers (TRGT): Each with Four Channels

2x 16-Bit General Purpose Timer (GPT)

• Others:

AEC-Q100 G1 Grade (TA：-40 to 125°C)

Packages Available: LQFP48

The SA32B1x series MCUs are based on the popular ARM Cortex-M4F core, designed for high reliability and functional safety to meet the requirements of the automotive market. They comply with ISO26262 ASIL-B level functional safety requirements and meet AEC-Q100 G1 grade reliability standards. The SA32B1x series offers an optimal balance of performance and cost, making it ideal for automotive body, comfort, and telematics applications.