STM32F100RET7B View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STM32F100RET7B

High-density value line, advanced ARM-based 32-bit MCU with 256 to 512 KB Flash, 16 timers, ADC, DAC & 11 comm interfaces

STMicroelectronics 

STM32F100xC, STM32F100xD, STM32F100xE

Electrical characteristics

Figure 11. High-speed external clock source AC timing diagram

VHSEH

90%

10%

VHSEL

tr(HSE)

tf(HSE)

THSE

External

clock source

fHSE_ext

OSC _IN

tW(HSE)

IL

STM32F10xxx

Figure 12. Low-speed external clock source AC timing diagram

tW(HSE) t

ai14127b

VLSEH

VLSEL

90%

10%

tr(LSE)

tf(LSE)

TLSE

tW(LSE)

tW(LSE) t

External

clock source

fLSE_ext

OSC32_IN

IL

STM32F10xxx

ai14140c

High-speed external clock generated from a crystal/ceramic resonator

The high-speed external (HSE) clock can be supplied with a 4 to 24 MHz crystal/ceramic

resonator oscillator. All the information given in this paragraph are based on characterization

results obtained with typical external components specified in Table 22. In the application,

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).

Doc ID 15081 Rev 7

49/98

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