Contents
© 2022 Beken Corporation 3 DS-BK7256-E01 V0.1
4.20.2 PWM Mode ........................................................................................................................................................................ 26
4.20.3 Capture Mode .................................................................................................................................................................... 27
4.21 I2S ................................................................................................................................................................................................ 27
4.22 Audio Peripherals ....................................................................................................................................................................... 27
4.22.1 Four-Band Digital Equalizer .............................................................................................................................................. 28
4.22.2 Audio ADC and DAC ......................................................................................................................................................... 28
4.22.3 Microphone Input Amplifier ............................................................................................................................................... 28
4.22.4 Audio Amplifier ................................................................................................................................................................... 28
4.23 General Purpose SAR ADC...................................................................................................................................................... 28
4.24 Timers .......................................................................................................................................................................................... 29
4.25 IrDA .............................................................................................................................................................................................. 29
4.26 Temperature Sensor .................................................................................................................................................................. 29
4.27 Touch Sensor .............................................................................................................................................................................. 30
4.28 Security ........................................................................................................................................................................................ 30
4.28.1 General Description ........................................................................................................................................................... 30
4.28.2 Secure Element ................................................................................................................................................................. 30
4.28.3 Flash Security ..................................................................................................................................................................... 30
4.28.4 Secure Boot ........................................................................................................................................................................ 31
4.28.5 Security Lifecycle ............................................................................................................................................................... 31
5. Electrical Characteristics ............................................................................................................................................ 32
5.1 Absolute Maximum Ratings ...................................................................................................................................................... 32
5.2 Recommended Operating Conditions ..................................................................................................................................... 32
5.3 Buck ............................................................................................................................................................................................. 33
5.4 System LDO ................................................................................................................................................................................ 33
5.5 Digital LDO .................................................................................................................................................................................. 33
5.6 Crystal and Reference Clock .................................................................................................................................................... 33
5.7 Current Consumption ................................................................................................................................................................. 34
5.8 WLAN RF Characteristics - Receiver ....................................................................................................................................... 35
5.9 WLAN RF Characteristics - Transmitter .................................................................................................................................. 37
5.10 Bluetooth LE RF Characteristics - Receiver ............................................................................................................................ 38
