ARM® Cortex® M3 STM32F1 Microcontroller IC 32-Bit Single-Core 72MHz 64KB (64K x 8) FLASH
Medium-density performance line Arm®-based 32-bit MCU with
64 or 128 KB Flash, USB, CAN, 7 timers, 2 ADCs, 9 com. interfaces
Arm® 32-bit Cortex®-M3 CPU core
– 72 MHz maximum frequency, 1.25
DMIPS/MHz (Dhrystone 2.1) performance
at 0 wait state memory access
– Single-cycle multiplication and hardware
division
• Memories
– 64 or 128 Kbytes of Flash memory
– 20 Kbytes of SRAM
• Clock, reset and supply management
– 2.0 to 3.6 V application supply and I/Os
– POR, PDR, and programmable voltage
detector (PVD)
– 4 to 16 MHz crystal oscillator
– Internal 8 MHz factory-trimmed RC
– Internal 40 kHz RC
– PLL for CPU clock
– 32 kHz oscillator for RTC with calibration
• Low-power
– Sleep, Stop and Standby modes
– VBAT supply for RTC and backup registers
• 2x 12-bit, 1 µs A/D converters (up to 16
channels)
– Conversion range: 0 to 3.6 V
– Dual-sample and hold capability
– Temperature sensor
• DMA
– 7-channel DMA controller
– Peripherals supported: timers, ADC, SPIs,
I
2Cs and USARTs
• Up to 80 fast I/O ports
– 26/37/51/80 I/Os, all mappable on 16
external interrupt vectors and almost all
5 V-tolerant
Debug mode:
– Serial wire debug (SWD) and JTAG
interfaces
• Seven timers
– Three 16-bit timers, each with up to
4 IC/OC/PWM or pulse counter and
quadrature (incremental) encoder input
– 16-bit, motor control PWM timer with
dead-time generation and emergency stop
– Two watchdog timers (independent and
window)
– SysTick timer 24-bit downcounter
• Up to nine communication interfaces
– Up to two I2C interfaces (SMBus/PMBus®)
– Up to three USARTs (ISO 7816 interface,
LIN, IrDA capability, modem control)
– Up to two SPIs (18 Mbit/s)
– CAN interface (2.0B Active)
– USB 2.0 full-speed interface
• CRC calculation unit, 96-bit unique ID
• Packages are ECOPACK
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