Description
The STM32F091xB/xC microcontrollers have a high-performance ARM®
Cortex®-M0 32-bit RISC core that operates at up to 48 MHz,
high-speed embedded storage (up to 256 Kbytes of Flash memory and
32 Kbytes of SRAM), and a wide range of upgraded peripherals and
I/Os. Standard communication interfaces (two I2Cs, two SPIs/one
I2S, one HDMI CEC, and up to eight USARTs) are provided, as well as
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 work in the -40 to +85 °C and
-40 to +105 °C temperature ranges, with a power supply ranging from
2.0 to 3.6 V. A diverse range of power-saving settings enables the
development of low-power applications.
The STM32F091xB/xC microcontrollers are available in seven
different packages ranging from 48 to 100 pins, with a die shape
available upon request. Different sets of peripherals are included
depending on the device.
These characteristics make the STM32F091xB/xC microcontrollers
suitable for a wide range of applications, including application
control and user interfaces, handheld devices, A/V receivers and
digital TV, PC peripherals, gaming and GPS platforms, industrial
applications, PLCs, inverters, printers, scanners, alarm systems,
video intercoms, and HVACs.
Features
• Core: ARM® 32-bit Cortex®-M0 CPU, frequency up to 48 MHz
• Memories
– 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: VDD = 2.0 V to 3.6 V
– Analog supply: VDDA = VDD to 3.6 V
– Power-on/Power down reset (POR/PDR)
– Programmable voltage detector (PVD)
– Low power modes: Sleep, Stop, 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 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
– All mappable on external interrupt vectors
– Up to 69 I/Os with 5V-tolerant capability and 19 with independent
supply VDDIO2
• 12-channel DMA controller
• One 12-bit, 1.0 µs ADC (up to 16 channels)
– Conversion range: 0 to 3.6 V
– Separate analog supply: 2.4 V to 3.6 V
• One 12-bit D/A converter (with 2 channels)
• Two fast low-power analog comparators with programmable input and
output
• Up to 24 capacitive sensing channels for touchkey, linear and
rotary touch sensors
• Calendar RTC with alarm and periodic wakeup from Stop/Standby
• 12 timers
– One 16-bit advanced-control timer for 6 channel PWM output
– One 32-bit and seven 16-bit timers, with up to 4 IC/OC, OCN,
usable for IR control decoding or DAC control
– Independent and system watchdog timers
– SysTick timer
• Communication interfaces
– Two I2C interfaces supporting Fast Mode Plus (1 Mbit/s) with 20
mA current sink, one supporting SMBus/PMBus and wakeup
– Up to eight USARTs supporting master synchronous SPI and modem
control, three with ISO7816 interface, LIN, IrDA, auto baud rate
detection and wakeup feature
– Two SPIs (18 Mbit/s) with 4 to 16 programmable bit frames, and
with I2S interface multiplexed
– CAN interface
• HDMI CEC wakeup on header reception
• Serial wire debug (SWD)
• 96-bit unique ID
• All packages ECOPACK®2
