STM32F0x2 crystal-less USB 2.0 FS enlarges the STM32 F0 series with up to 128 Kbytes of Flash and 16 Kbytes of SRAM
These new STM32 F0 devices offer a crystal-less USB 2.0 FS interface with a link power management (LPM) feature and compliant with battery charger detection (BCD) specification 1.2, thus eliminating the need for an external crystal oscillator to generate the precision clock required by the USB protocol. Together with the support of CAN, USART, I²C, SPI (I²S) and HDMI CEC, the new STM32 F0 devices enable product developers to increase system integration, reduce costs, and exceed the traditional price/performance limitations imposed by older, proprietary 8-bit or 16-bit microcontrollers for USB device or USB- controller applications.
The STM32F072 series provides 64 to 128 Kbytes of Flash memory in 48-, 64- or 100-pin packages. The STM32F042 series comprises variants with 16 to 32 Kbytes of Flash memory and 20-, 28-, 32- and 48-pin package options.

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STM32F042G6
Mainstream Arm Cortex-M0 USB line MCU with 32 Kbytes of Flash memory, 48 MHz CPU, USB, CAN and CEC functions
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STM32F072VB
Mainstream Arm Cortex-M0 USB line MCU with 128 Kbytes of Flash memory, 48 MHz CPU, USB, CAN and CEC functions
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STM32F072RB
Mainstream Arm Cortex-M0 USB line MCU with 128 Kbytes of Flash memory, 48 MHz CPU, USB, CAN and CEC functions
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STM32F042G4
Mainstream Arm Cortex-M0 USB line MCU with 16 Kbytes of Flash memory, 48 MHz CPU, USB, CAN and CEC functions
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STM32F042K6
Mainstream Arm Cortex-M0 USB line MCU with 32 Kbytes of Flash memory, 48 MHz CPU, USB, CAN and CEC functions
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STM32F042K4
Mainstream Arm Cortex-M0 USB line MCU with 16 Kbytes of Flash memory, 48 MHz CPU, USB, CAN and CEC functions
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STM32F072R8
Mainstream Arm Cortex-M0 USB line MCU with 64 Kbytes of Flash memory, 48 MHz CPU, USB, CAN and CEC functions
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STM32F072C8
Mainstream Arm Cortex-M0 USB line MCU with 64 Kbytes of Flash memory, 48 MHz CPU, USB, CAN and CEC functions
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STM32F042F6
Mainstream Arm Cortex-M0 USB line MCU with 32 Kbytes of Flash memory, 48 MHz CPU, USB, CAN and CEC functions
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STM32F072CB
Mainstream Arm Cortex-M0 USB line MCU with 128 Kbytes of Flash memory, 48 MHz CPU, USB, CAN and CEC functions
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STM32F042F4
Mainstream Arm Cortex-M0 USB line MCU with 16 Kbytes of Flash memory, 48 MHz CPU, USB, CAN and CEC functions
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STM32F072V8
Mainstream Arm Cortex-M0 USB line MCU with 64 Kbytes of Flash memory, 48 MHz CPU, USB, CAN and CEC functions
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STM32F042C6
Mainstream Arm Cortex-M0 USB line MCU with 32 Kbytes of Flash memory, 48 MHz CPU, USB, CAN and CEC functions
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STM32F042C4
Mainstream Arm Cortex-M0 USB line MCU with 16 Kbytes of Flash memory, 48 MHz CPU, USB, CAN and CEC functions
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STM32F042T6
Mainstream Arm Cortex-M0 USB line MCU with 32 Kbytes of Flash memory, 48 MHz CPU, USB, CAN and CEC functions