STM32F103T8 STMicroelectronics, STM32F103T8 Datasheet - Page 49

• Manufacturer Part Number: STM32F103T8
• Description: Mainstream Performance line, ARM Cortex-M3 MCU with 64 Kbytes Flash, 72 MHz CPU, motor control, USB and CAN
• Manufacturer: STMicroelectronics

Specifications of STM32F103T8

• Conversion Range: 0 to 3.6 V
• Peripherals Supported: timers, ADC, SPIs, I2Cs and USARTs

STM32F103x8, STM32F103xB
5.3.6
External clock source characteristics
High-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 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
V
t
t
HSE_ext
V
LSE_ext
V
t
t
V
t
t
w(HSE)
w(HSE)
w(LSE)
w(LSE)
r(HSE)
f(HSE)
in(HSE)
r(LSE)
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
Table
(1)
(1)
Parameter
9.
9.
Parameter
Table 20
Table 21
Doc ID 13587 Rev 13
(1)
(1)
(1)
(1)
(1)
result from tests performed using an high-speed
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
Min
V
450
30
SS
0.7V
DD
Min
V
45
1
5
SS
Electrical characteristics
DD
32.768
Typ
5
Typ
8
5
0.3V
0.3V
1000
Max
V
Max
V
50
±1
70
25
20
55
±1
DD
DD
DD
DD
MHz
Unit
Unit
kHz
49/99
pF
µA
pF
µA
ns
ns
%
%
V
V