STM32F107RB STMicroelectronics, STM32F107RB Datasheet - Page 46

• Manufacturer Part Number: STM32F107RB
• Description: Mainstream Connectivity line, ARM Cortex-M3 MCU with 128 Kbytes Flash, 72 MHz CPU, Ethernet MAC, CAN and USB 2.0 OTG
• Manufacturer: STMicroelectronics

Specifications of STM32F107RB

• Core: ARM 32-bit Cortex™-M3 CPU
• Conversion Range: 0 to 3.6 V
• Dma: 12-channel DMA controller
• Supported Peripherals: timers, ADCs, DAC, I2Ss, SPIs, I2Cs and USARTs
• Systick Timer: a 24-bit downcounter
• 10/100 Ethernet Mac With Dedicated Dma And Sram (4 Kbytes): IEEE1588 hardware support, MII/RMII available on all packages

Electrical characteristics
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Figure 14. High-speed external clock source AC timing diagram
Figure 15. Low-speed external clock source AC timing diagram
High-speed external clock generated from a crystal/ceramic resonator
The high-speed external (HSE) clock can be supplied with a 3 to 25 MHz 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).
V LSEH
V HSEH
V LSEL
V HSEL
90%
10%
90%
10%
External
clock source
External
clock source
t r(HSE)
t r(LSE)
f HSE_ext
f LSE_ext
Doc ID 15274 Rev 6
T HSE
T LSE
OSC _IN
t f(HSE)
OSC32_IN
t f(LSE)
t W(HSE)
t W(LSE)
I L
STM32F10xxx
I L
STM32F105xx, STM32F107xx
STM32F10xxx
Table
22. In the application,
t W(HSE)
t W(LSE)
ai14127b
ai14140c
t
t