STM32F103RCT6 datasheet(56/130 Pages) STMICROELECTRONICS

tên linh kiện	STM32F103RCT6

Giải thích chi tiết về linh kiện	Clock, reset and supply management

PDF	130 Pages

Scroll/Zoom	100%

nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

Trang chủ	http://www.st.com

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56 / 130 page

Electrical characteristics

STM32F103xC, STM32F103xD, STM32F103xE

56/130

Doc ID 14611 Rev 8

Low-speed external user clock generated from an external source

The characteristics given in Table 22 result from tests performed using an low-speed

external clock source, and under ambient temperature and supply voltage conditions

summarized in Table 10.

Figure 20.

High-speed external clock source AC timing diagram

Table 22.

Low-speed external user clock characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fLSE_ext

User External clock source

frequency(1)

Guaranteed by design, not tested in production.

32.768

1000

kHz

VLSEH

OSC32_IN input pin high level

voltage

0.7VDD

VDD

VLSEL

OSC32_IN input pin low level

voltage

VSS

0.3VDD

tw(LSE)

OSC32_IN high or low time(1)

450

tr(LSE)

tf(LSE)

OSC32_IN rise or fall time(1)

Cin(LSE)

OSC32_IN input capacitance(1)

5pF

DuCy(LSE) Duty cycle

OSC32_IN Input leakage current

VSS ≤ VIN ≤ VD

±1

µA

ai14143

OSC _IN

EXTER NAL

STM32F103xx

CLOCK SOURC E

VHSEH

tf(HSE)

tW(HSE)

90%

10%

THSE

tr(HSE)

tW(HSE)

fHSE_ext

VHSEL

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