參數(shù)資料
型號: STM32F103RCH7XXX
廠商: STMICROELECTRONICS
元件分類: 微控制器/微處理器
英文描述: 32-BIT, FLASH, 72 MHz, RISC MICROCONTROLLER, PBGA64
封裝: ROHS COMPLIANT, LFBGA-64
文件頁數(shù): 65/115頁
文件大小: 1225K
代理商: STM32F103RCH7XXX
STM32F103xC, STM32F103xD, STM32F103xE
Electrical characteristics
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 18.
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)
1.
Guaranteed by design, not tested in production.
32.768
1000
kHz
VLSEH
OSC32_IN input pin high level
voltage
0.7VDD
VDD
V
VLSEL
OSC32_IN input pin low level
voltage
VSS
0.3VDD
tw(LSE)
OSC32_IN high or low time(1)
450
ns
tr(LSE)
tf(LSE)
OSC32_IN rise or fall time(1)
5
IL
OSC32_IN Input leakage
current
VSS ≤VIN ≤VDD
±1
A
ai14143
OSC _IN
EXTER NAL
STM32F103xx
CLOCK SOURC E
VHSEH
tf(HSE)
tW(HSE)
IL
90%
10%
THSE
t
tr(HSE)
tW(HSE)
fHSE_ext
VHSEL
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