STM32F102R4 STMicroelectronics, STM32F102R4 Datasheet - Page 6

• Manufacturer Part Number: STM32F102R4
• Description: Mainstream USB Access line, ARM Cortex-M3 MCU with 16 Kbytes Flash, 48 MHz CPU, USB, FS
• Manufacturer: STMicroelectronics

Specifications of STM32F102R4

• Core: ARM 32-bit Cortex™-M3 CPU
• Peripherals Supported: timers, ADC, SPIs, I2Cs and USARTs
• Conversion Range: 0 to 3.6 V
• Systick Timer: 24-bit downcounter

List of figures
List of figures
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STM32F102xx low-density USB access line block diagram . . . . . . . . . . . . . . . . . . . . . . . . 10
Clock tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
STM32F102xx low-density USB access line LQFP48 pinout . . . . . . . . . . . . . . . . . . . . . . . 18
STM32F102xx low-density USB access line LQFP64 pinout . . . . . . . . . . . . . . . . . . . . . . . 18
Memory map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Pin loading conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Pin input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Power supply scheme. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Current consumption measurement scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Typical current consumption in Run mode versus temperature (at 3.6 V) -
code with data processing running from RAM, peripherals enabled. . . . . . . . . . . . . . . . . . 31
Typical current consumption in Run mode versus temperature (at 3.6 V) -
code with data processing running from RAM, peripherals disabled . . . . . . . . . . . . . . . . . 31
Typical current consumption on V
V
Typical current consumption in Stop mode with regulator in Run mode versus
temperature at V
Typical current consumption in Stop mode with regulator in Low-power mode versus
temperature at V
Typical current consumption in Standby mode versus temperature at V
3.6 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
High-speed external clock source AC timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Low-speed external clock source AC timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Typical application with an 8 MHz crystal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Typical application with a 32.768 kHz crystal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
I/O AC characteristics definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Recommended NRST pin protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
I
SPI timing diagram - slave mode and CPHA=0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
SPI timing diagram - slave mode and CPHA=1
SPI timing diagram - master mode
USB timings: definition of data signal rise and fall time . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
ADC accuracy characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Typical connection diagram using the ADC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Power supply and reference decoupling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
LQFP64 – 10 x 10 mm, 64 pin low-profile quad flat package outline . . . . . . . . . . . . . . . . . 63
Recommended footprint
LQFP48 – 7 x 7 mm, 48-pin low-profile quad flat package outline . . . . . . . . . . . . . . . . . . . 64
Recommended footprint
LQFP64 P
2
BAT
C bus AC waveforms and measurement circuit
values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
D
max vs. T
DD
DD
= 3.3 V and 3.6 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
= 3.3 V and 3.6 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
A
(1)
(1)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Doc ID 15057 Rev 3
BAT
(1)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
with RTC on versus temperature at different
(1)
(1)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
STM32F102x4, STM32F102x6
DD
= 3.3 V and