STM32F103C8T6TR STMicroelectronics, STM32F103C8T6TR Datasheet - Page 11

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STM32F103C8T6TR

Manufacturer Part Number
STM32F103C8T6TR
Description
MCU ARM 64KB FLASH MEM 48-LQFP
Manufacturer
STMicroelectronics
Series
STM32r

Specifications of STM32F103C8T6TR

Core Processor
ARM® Cortex-M3™
Core Size
32-Bit
Speed
72MHz
Connectivity
CAN, I²C, IrDA, LIN, SPI, UART/USART, USB
Peripherals
DMA, Motor Control PWM, PDR, POR, PVD, PWM, Temp Sensor, WDT
Number Of I /o
37
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
20K x 8
Voltage - Supply (vcc/vdd)
2 V ~ 3.6 V
Data Converters
A/D 10x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-LQFP
For Use With
497-10048 - BOARD EVAL ACCELEROMETER497-10030 - STARTER KIT FOR STM32497-8511 - KIT STARTER FOR STM32 512K FLASH497-6438 - BOARD EVALUTION FOR STM32 512K
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-

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STM32F103xx
RTC (real-time clock) and backup registers
The RTC and the backup registers are supplied through a switch that takes power either on
V
registers) can be used to store data when V
The real-time clock provides a set of continuously running counters which can be used with
suitable software to provide a clock calendar function, and provides an alarm interrupt and a
periodic interrupt. It is clocked by an external 32.768 kHz oscillator, the internal low power
RC oscillator or the High Speed External clock divided by 128. The internal low power RC
has a typical frequency of 32 kHz. The RTC can be calibrated using an external 512 Hz
output to compensate for any natural quartz deviation. The RTC features a 32-bit
programmable counter for long term measurement using the Compare register to generate
an alarm. A 20-bit prescaler is used for the time base clock and is by default configured to
generate a time base of 1 second from a clock at 32.768 kHz.
Independent watchdog
The independent watchdog is based on a 12-bit downcounter and 8-bit prescaler. It is
clocked from an independent 32 kHz internal RC and as it operates independently from the
main clock, it can operate in Stop and Standby modes. It can be used either as a watchdog
to reset the device when a problem occurs, or as a free running timer for application time out
management. It is hardware or software configurable through the option bytes. The counter
can be frozen in debug mode.
Window watchdog
The window watchdog is based on a 7-bit downcounter that can be set as free running. It
can be used as a watchdog to reset the device when a problem occurs. It is clocked from the
main clock. It has an early warning interrupt capability and the counter can be frozen in
debug mode.
SysTick timer
This timer is dedicated for OS, but could also be used as a standard down counter. It
features:
General purpose timers (TIMx)
There are up to 3 synchronizable standard timers embedded in the STM32F103xx
performance line devices. These timers are based on a 16-bit auto-reload up/down counter,
a 16-bit prescaler and feature 4 independent channels each for input capture/output
compare, PWM or one pulse mode output. This gives up to 12 input captures / output
compares / PWMs on the largest packages. They can work together with the Advanced
Control Timer via the Timer Link feature for synchronization or event chaining.
The counter can be frozen in debug mode.
Any of the standard timers can be used to generate PWM outputs. Each of the timers has
independent DMA request generations.
DD
supply when present or through the V
A 24-bit down counter
Autoreload capability
Maskable system interrupt generation when the counter reaches 0.
Programmable clock source
BAT
DD
pin. The backup registers (ten 16-bit
power is not present.
Description
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