STM32F103C4H6ATR STMICROELECTRONICS [STMicroelectronics], STM32F103C4H6ATR Datasheet - Page 43

• Manufacturer Part Number: STM32F103C4H6ATR
• Description: Low-density performance line, ARM-based 32-bit MCU with 16 or 32 KB Flash, USB, CAN, 6 timers, 2 ADCs, 6 communication interfaces
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Table 20.
1. Guaranteed by design, not tested in production.
Low-speed external user clock generated from an external source
The characteristics given in
external clock source, and under ambient temperature and supply voltage conditions
summarized in
Table 21.
1. Guaranteed by design, not tested in production.
DuCy
DuCy
Symbol
Symbol
C
C
f
f
t
t
t
t
HSE_ext
V
V
V
t
LSE_ext
V
t
t
t
w(HSE)
w(HSE)
w(LSE)
w(LSE)
r(HSE)
f(HSE)
r(LSE)
in(HSE)
f(LSE)
in(LSE)
HSEH
LSEH
HSEL
LSEL
I
I
L
L
(HSE)
(LSE)
User External clock source
frequency
OSC32_IN input pin high level
voltage
OSC32_IN input pin low level
voltage
OSC32_IN high or low time
OSC32_IN rise or fall time
OSC32_IN input capacitance
Duty cycle
OSC32_IN Input leakage
current
User external clock source
frequency
OSC_IN input pin high level voltage
OSC_IN input pin low level voltage
OSC_IN high or low time
OSC_IN rise or fall time
OSC_IN input capacitance
Duty cycle
OSC_IN Input leakage current
High-speed external user clock characteristics
Low-speed external user clock characteristics
Table
(1)
(1)
Parameter
9.
Parameter
Table 21
Doc ID 15060 Rev 3
(1)
(1)
(1)
(1)
(1)
result from tests performed using an low-speed
(1)
V
SS
Conditions
V
 V
SS
Conditions
IN
 V
 V
IN
DD
 V
DD
0.7V
V
Min
450
30
SS
0.7V
DD
V
Min
16
45
1
SS
DD
32.768
Typ
5
Typ
8
5
0.3V
0.3V
1000
Max
V
Max
V
50
70
±1
25
20
55
±1
DD
DD
DD
DD
MHz
Unit
Unit
kHz
43/80
pF
µA
pF
µA
ns
ns
%
%
V
V