• CPU core
― 32-bit ARM Cortex-M4 core + FPU, single-cycle hardware multiply and divide instructions, support DSP instructions and MPU.
― Built-in 2KB instruction Cache, support Flash acceleration unit execution program 0 wait
―The highest frequency is 108MHz, 135DMIPS
• Cryptographic memory
― Up to 128KByte in-chip Flash, support encrypted storage, partition management and data protection, support hardware ECC verification, 100,000 erasing times, 10 years of data retention
― Up to 32KByte in-chip SRAM, including 24Kbyte SRAM1(Stop2 mode can be configured as retention) and 8 Kbyte SRAM2(both Standby and Stop2 modes can be configured as retention), supporting hardware parity check
• Low power management
― Support Run, Sleep, LP Run, LP Sleep, Stop2, Standby mode
• High-performance analog interface
― 1x 12bit 5Msps ADC, 12/10/8/6 bits configurable, up to 16 external single-ended input channels, supporting differential mode
― Two rail-to-rail operational amplifiers with built-in programmable gain amplifier up to 32 times
― Two high-speed analog comparators with built-in 64-level adjustable comparison reference, COMP1 supports STOP2 working in low power mode
― 1x 12bit DAC, sampling rate 1Msps
― Internal 2.048V independent reference voltage reference source
― All analog interfaces support full voltage from 1.8 to 3.6V
• Clock
― 4MHz~32MHz external high-speed crystal
― 32.768KHz External low-speed crystal
― Internal high-speed RC(HSI) 16MHz
― Internal multi-speed RC(MSI) 100K~4MHz
― Internal low-speed RC(LSI) 40KHz
― Built-in high-speed PLL
― Supports one clock output, which can be configured as low-speed or high-speed clock output
• Reset
― Support power on, brown-out, and external pin reset
― Support watchdog reset, software reset
• Support up to 52 GPIOs.
• Communication interface
― Five U(S)ART interfaces, including three USART interfaces (support 1xISO7816, 1xIrDA, LIN) and two UART interfaces
― One LPUART, support STOP2 to wake up MCU in low power consumption state
― Two SPI interfaces, the rate is up to 27 Mbps, support I2S communication
― Two I2C interfaces, the rate is up to 1 MHz, which can be configured in master/slave mode and support dual address response in slave mode
― One USB2.0 FS Device interface
― One CAN 2.0A/B bus interface
• One high-speed DMA controller, each controller supports 8 channels, channel source address and destination address can be configured arbitrarily
• RTC real-time clock, support leap year perpetual calendar, alarm event, periodic wake up, support internal and external clock calibration
• Timer counter
― Two 16bit advanced timer counters, support input capture, complementary output, quadrature encoding input, the highest control accuracy is 9.25ns,each timer has four independent channels, three of which support six-channel complementary PWM output
― Five 16bit general purpose timer counters, each timer has 4 independent channels, support input capture/output comparison /PWM output
― Two 16bit basic timer counters
― One 16bit low power timer counter, support double pulse counting function, can work in STOP2 mode
― 1x 24bit SysTick
― 1x 7bit window Watchdog (WWDG)
― 1x 12bit independent Watchdog (IWDG)
• Programming method
― Support SWD/JTAG online debugging interface
― Support UART and USB Bootloader
• Security features
― Built-in cryptographic algorithm hardware acceleration engine
― Support AES, DES, TDES, SHA1/224/256, SM1, SM3, SM4, and SM7 algorithms
― Flash storage encryption, multi-user partition management (MMU)
― TRNG true random number generator
― CRC16/32 calculation
― Support write protection (WRP), multiple read protection (RDP) levels (L0/L1/L2)
― Support security start, program encryption download, security updates
― Support external clock failure detection, tamper detection
• 96-bit UID and 128-bit UCID
• The working conditions
― Operating voltage range: 1.8V~3.6V
― Operating temperature range: -40℃ ~ 105℃
― ESD: ±4KV (HBM model), ±1KV (CDM model)
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