STM32F303CBT7 Microcontroller: 32-Bit, 48-LQFP, Pinout and Features

The STM32F303CBT7 is based on the high-performance Arm® Cortex®-M4 32-bit RISC core with FPU operating at a frequency of up to 72 MHz, and embedding a floating-point unit (FPU), a memory protection unit (MPU), and an embedded trace macrocell (ETM). The STM32F303CBT7 incorporates high-speed embedded memories (up to 256 Kbytes of Flash memory, up to 40 Kbytes of SRAM) and an extensive range of enhanced I/Os and peripherals connected to two APB buses.

The STM32F303CBT7 offers up to four fast 12-bit ADCs (5 Msps), seven comparators, four operational amplifiers, up to two DAC channels, a low-power RTC, up to five general-purpose 16-bit timers, one general-purpose 32-bit timer, and two timers dedicated to motor control. They also feature standard and advanced communication interfaces: up to two I2Cs, up to three SPIs (two SPIs are with multiplexed full-duplex I2Ss), three USARTs, up to two UARTs, CAN and USB. To achieve audio class accuracy, the I2S peripherals can be clocked via an external PLL.

The STM32F303CBT7 operates in the -40 to +85 °C and -40 to +105 °C temperature ranges from a 2.0 to 3.6 V power supply. A comprehensive set of power-saving modes allows the design of low-power applications.

The STM32F303CBT7 offers devices in four packages ranging from 48 pins to 100 pins.

The set of included peripherals changes with the device chosen.

STM32F303CBT7 Pinout

STM32F303CBT7 Symbol

STM32F303CBT7 Footprint

STM32F303CBT7 3D Model

STM32F303CBT7 Block Diagram

STM32F303CBT7 Power Supply Scheme

STMicroelectronics STM32F303CBT7 technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics STM32F303CBT7.

• Core: Arm® Cortex®-M4 32-bit CPU with FPU

(72 MHz max), single-cycle multiplication and

HW division, 90 DMIPS (from CCM), DSP

instruction and MPU (memory protection unit)

• Operating conditions:

– VDD, VDDA voltage range: 2.0 V to 3.6 V

• Memories

– 128 to 256 Kbytes of Flash memory

– Up to 40 Kbytes of SRAM, with HW parity

check implemented on the first 16 Kbytes.

– Routine booster: 8 Kbytes of SRAM on

instruction and data bus, with HW parity 

check (CCM)

• CRC calculation unit

• Reset and supply management

– Power-on/power-down reset (POR/PDR)

– Programmable voltage detector (PVD)

– Low-power modes: Sleep, Stop, and Standby

– VBAT supply for RTC and backup registers

• Clock management

– 4 to 32 MHz crystal oscillator

– 32 kHz oscillator for RTC with calibration

– Internal 8 MHz RC with x 16 PLL option

– Internal 40 kHz oscillator

• Up to 87 fast I/Os

– All mappable on external interrupt vectors

– Several 5 V-tolerant

• Interconnect matrix

• 12-channel DMA controller

• Four ADCs 0.20 µS (up to 39 channels) with

selectable resolution of 12/10/8/6 bits, 0 to

3.6 V conversion range, single

ended/differential input, separate analog

supply from 2 to 3.6 V

• Two 12-bit DAC channels with analog supply

from 2.4 to 3.6 V

STM32F303CBT7 Package Dimension

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