STMicroelectronics Discovery kit for STM32L151/152 line - with STM32L152RC MCU STM32L152C-DISCO STM32L152C-DISCO Hoja De Datos
Los códigos de productos
STM32L152C-DISCO
Electrical characteristics
STM32L15xCC STM32L15xRC STM32L15xUC STM32L15xVC
DocID022799 Rev 6
Figure 15. High-speed external clock source AC timing diagram
Table 27. High-speed external user clock characteristics
(1)
1. Guaranteed by design, not tested in production.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
f
HSE_ext
User external clock source
frequency
frequency
CSS is on or
PLL is used
1
8
32
MHz
CSS is off, PLL
not used
0
8
32
MHz
V
HSEH
OSC_IN input pin high level voltage
-
0.7V
DD
-
V
DD
V
V
HSEL
OSC_IN input pin low level voltage
V
SS
-
0.3V
DD
t
w(HSE)
t
w(HSE)
OSC_IN high or low time
12
-
-
ns
t
r(HSE)
t
f(HSE)
OSC_IN rise or fall time
-
-
20
C
in(HSE)
OSC_IN input capacitance
-
2.6
-
pF
DuCy
(HSE)
Duty cycle
45
-
55
%
I
L
OSC_IN Input leakage current
V
SS
V
IN
V
DD
-
-
±1
µA
ai18232
OSC _IN
EXTER NAL
STM32Lxx
CLOCK SOURC E
VHSEH
tf(HSE)
tW(HSE)
IL
90%
10%
THSE
t
tr(HSE)
tW(HSE)
fHSE_ext
VHSEL