Data Sheet

Wireless-Tag Technology Co., Ltd. V1.0.1
©2020 Wireless-Tag Technology Co., Ltd. All rights reserved.
http://www.wireless-tag.com
III
Contents
1 Overview........................................................................................................................................................1
2 Chip Dimensions............................................................................................................................................3
3 Pin Definition.................................................................................................................................................4
3.1 Pin Layout...........................................................................................................................................4
3.2 Pin Description................................................................................................................................... 4
4 Functional Description...................................................................................................................................6
4.1 Direct Memory Access Controller (DMA).........................................................................................6
4.2 Independent Watchdog(IWDG)......................................................................................................... 6
4.3 Window Watchdog(WWDG)............................................................................................................. 7
4.4 General Purpose and Alternate Function(GPIO and AFIO).............................................................. 7
4.5 Peripheral Interconnection..................................................................................................................8
4.6 Elliptic Curve Cryptography(ECC)....................................................................................................8
4.7 Encryption(AES/DES)........................................................................................................................8
4.8 True Random Number Generator(TRNG)......................................................................................... 9
4.9 Calculating Accelerator(CALC).........................................................................................................9
4.10 Advanced Timer(ADTIM)................................................................................................................9
4.11 General-Purpose Timer(GPTIMC).................................................................................................10
4.12 Basic Timer(BSTIM)......................................................................................................................11
4.13 Low-Power Timer(LPTIM)............................................................................................................12
4.14 Analog-to-Digital Converter(ADC)............................................................................................... 12
4.15 Real Time Clock(RTC)...................................................................................................................13
4.16 Inter-Integrated Circuit Interface(I2C)...........................................................................................14
4.17 Serial Peripheral Interface 1(LSSPI).............................................................................................. 14
4.18 Serial Peripheral Interface 2(SPI2).................................................................................................15
4.19 Universal Asynchronous Receiver Transmitter(UART)................................................................16
4.20 Audio Interface (PDM)...................................................................................................................18
4.21 BLE................................................................................................................................................. 18