Data Sheet
Table Of Contents
- 1Overview
- 2Chip Dimensions
- 3Pin Definition
- 4Functional Description
- 4.1Direct Memory Access Controller (DMA)
- 4.2Independent Watchdog(IWDG)
- 4.3Window Watchdog(WWDG)
- 4.4General Purpose and Alternate Function(GPIO and AF
- 4.5Peripheral Interconnection
- 4.6Elliptic Curve Cryptography(ECC)
- 4.7Encryption(AES/DES)
- 4.8True Random Number Generator(TRNG)
- 4.9Calculating Accelerator(CALC)
- 4.10Advanced Timer(ADTIM)
- 4.11General-Purpose Timer(GPTIMC)
- 4.12Basic Timer(BSTIM)
- 4.13Low-Power Timer(LPTIM)
- 4.14Analog-to-Digital Converter(ADC)
- 4.15Real Time Clock(RTC)
- 4.16Inter-Integrated Circuit Interface(I2C)
- 4.17Serial Peripheral Interface 1(LSSPI)
- 4.18Serial Peripheral Interface 2(SPI2)
- 4.19Universal Asynchronous Receiver Transmitter(UART)
- 4.20Audio Interface (PDM)
- 4.21BLE
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2
DMA: support 8 multiplex channels
Watchdog timer: IWDG and WWDG
Peripheral interconnection PIS
System tick timer
Security and computing acceleration unit
ECC elliptic curve cryptography (256)
AES advanced encryption (256/192/128)
T/DES advanced encryption (192/128/64)
True random number generator (TRNG)
Calculating accelerator (CALC)
Timer
One advanced 16-bit timer (ADTIM), support 4-channel PWM, 3 of which support
dead-zone complementary
One general-purpose 32-bit timer A (GPTIMA), support 4-channel PWM
One general-purpose 16-bit timer B (GPTIMB), support 4-channel PWM
One general-purpose 16-bit timer C (GPTIMC), support 2-channel PWM, one of
which supports dead zone complementary
One basic timer (BSTIM)
One low power timer (LPTIM)
RTC ( Real time clock )
Support high precision hardware temperature compensation
ADC ( Analog to digital conversion )
12-bit high precision SAR ADC
Support up to 9 external channels
Support 3 internal channels
Built-in temperature sensor
1/8, 1/4, 1/2, 3/8VDD
Internal reference voltage of 1.4V
Communication interface
2 x I2C (support bus arbitration)
2 x SPI
3 x UART (support ISO7816, LIN, IrDA, etc.)
Audio interface
2 x PDM, support digital MIC
1 x I2S










