STM32F103RBT7TR STMicroelectronics, STM32F103RBT7TR Datasheet - Page 36

• Manufacturer Part Number: STM32F103RBT7TR
• Description: MCU ARM 32BIT 64KB FLASH 64LQFP
• Manufacturer: STMicroelectronics
• Series: STM32r

Specifications of STM32F103RBT7TR

• 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: 51
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 20K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 16x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 64-LQFP
• Processor Series: STM32F103x
• Core: ARM Cortex M3
• Data Bus Width: 32 bit
• Data Ram Size: 20 KB
• Interface Type: CAN, I2C, SPI, USART, USB
• Maximum Clock Frequency: 72 MHz
• Number Of Programmable I/os: 51
• Number Of Timers: 4
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWARM, EWARM-BL, KSDK-STM32-PLUS, KSK-STM32-JL, MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: ST-LINK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 2 (12 bit, 16 Channel)
• For Use With: 497-10048 - BOARD EVAL ACCELEROMETER497-10030 - STARTER KIT FOR STM32KSDKSTM32-PL - KIT IAR KICKSTART STM32 CORTEXM3497-8512 - KIT STARTER FOR STM32F10XE MCU497-8511 - KIT STARTER FOR STM32 512K FLASH497-8505 - KIT STARTER FOR STM32F10XE MCU497-8418 - BOARD DEMO DGTL PHOTOFRAME STM32497-6438 - BOARD EVALUTION FOR STM32 512K497-6289 - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U - BOARD EVAL MCBSTM32 + ULINK2MCBSTM32 - BOARD EVAL FOR STM STM32X SER497-6053 - KIT STARTER FOR STM32497-6052 - KIT STARTER FOR STM32497-6050 - KIT STARTER FOR STM32497-6049 - KIT EVALUATION LOW COST STM32497-6048 - BOARD EVALUATION FOR STM32497-6047 - KIT DEVELOPMENT FOR STM32
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

Electrical characteristics
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Low-speed external clock
The low-speed external (LSE) clock can be supplied with a 32.768 kHz crystal/ceramic
resonator oscillator. All the information given in this paragraph are based on characterization
results obtained with typical external components specified in
the resonator and the load capacitors have to be placed as close as possible to the oscillator
pins in order to minimize output distortion and startup stabilization time. Refer to the crystal
resonator manufacturer for more details on the resonator characteristics (frequency,
package, accuracy).
Table 18.
1. The oscillator selection can be optimized in terms of supply current using an high quality resonator with
2.
Figure 14. Typical application with a 32.768 kHz crystal
t
SU(LSE)
Symbol
small R
kHz oscillation is reached. This value is measured for a standard crystal resonator and it can vary
significantly with the crystal manufacturer
t
SU(LSE)
C
C
R
g
I
L1
L2
2
m
F
Resonator with
integrated capacitors
(2)
S
is the startup time measured from the moment it is enabled (by software) to a stabilized 32.768
value for example MSIV-TIN32.768kHz. Refer to crystal manufacturer for more details
LSE oscillator characteristics (f
Feedback resistor
Recommended load capacitance
versus equivalent serial
resistance of the crystal (R
LSE driving current
Oscillator Transconductance
startup time
C L2
C L1
32.768 kH z
resonator
Parameter
OSC32_OU T
OSC32_IN
S
)
(1)
R F
LSE
V
controlled
SS
Conditions
V
R
Bias
V
gain
DD
S
= 32.768 kHz)
IN
is stabilized
= 30 k
= 3.3 V
= V
SS
STM32F103xx
Table
f LSE
Min
5
18. In the application,
Typ
5
3
STM32F103xx
Max
1.4
15
ai14146
µA/V
Unit
M
pF
µA
s