STM32F091RBT6 STMicroelectronics 32bit MCU

STM32F091RBT6 Overview

The STM32F091xB/xC microcontrollers incorporate the high-performance ARM®Cortex®-M0 32-bit RISC core operating at up to 48 MHz frequency, high-speed embedded memories (up to 256 Kbytes of Flash memory and 32 Kbytes of SRAM), and an extensive range of enhanced peripherals and I/Os. The device offers standard communication interfaces (two I2Cs, two SPIs/one I2S, one HDMI CEC and up to eight USARTs), one CAN, one 12-bit ADC, one 12-bit DAC with two channels, seven 16-bit timers, one 32-bit timer and an advanced-control PWM timer.

The STM32F091xB/xC microcontrollers operate 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 STM32F091xB/xC microcontrollers include devices in seven different packages ranging from 48 pins to 100 pins with a die form also available upon request. Depending on the device chosen, different sets of peripherals are included.
These features make the STM32F091xB/xC microcontrollers suitable for a wide range of applications such as application control and user interfaces, hand-held equipment, A/V receivers and digital TV, PC peripherals, gaming and GPS platforms, industrial applications, PLCs, inverters, printers, scanners, alarm systems, video intercoms and HVACs.

ECAD Model

Symbol

Footprint

Features

128 to 256 Kbytes of Flash memory
32 Kbytes of SRAM with HW parity

CRC calculation unit

Reset and power management

Digital & I/Os supply: V_DD= 2.0 V to 3.6 V
Analog supply: V_DDA= V_DDto 3.6 V
Power-on/Power down reset (POR/PDR)
Programmable voltage detector (PVD)
Low power modes: Sleep, Stop, Standby
V_BATsupply 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 x6 PLL option
Internal 40 kHz RC oscillator
Internal 48 MHz oscillator with automatic trimming based on ext. synchronization

Up to 88 fast I/Os