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Datasheet
APM32F091xBxC Arm® Cortex® -M0+ based 32-bit MCU
Version: V1.4
1 Product characteristics
◼ Core
– 32-bit Arm® Cortex ® -M0+ core – Up to 48MHz working frequency
◼ On-chip memory
– Flash：128~256KB
– SRAM：32KB
◼ Clock
– HSECLK: 4~32MHz external crystal/ ceramic oscillator supported
– LSECLK: 32.768KHz crystal/ceramic oscillator supported
– HSICLK: 8MHz RC oscillator – HSICLK48: 48MHz RC oscillator – HSICLK14: 14MHz RC oscillator – LSICLK: 40KHz RC oscillator supported – PLL: Phase locked loop, 2~16 times of
frequency supported
◼ Reset and power management
– VDD range: 2.0～3.6V – VDDA range: VDD～3.6V
– VBAT range of RTC and backup domain power supply: 1.65V～3.6V
– VDDIO2 range of some I/O power supply: 1.65V～3.
APM32F091CCU6 Datasheet
