Electrical characteristics
Table 20.
STM32F103xC, STM32F103xD, STM32F103xE
Peripheral current consumption
(1)
(continued)
Peripheral
GPIOA
GPIOB
GPIOC
GPIOD
GPIOE
GPIOF
Typical consumption at 25 °C
0.55
0.72
0.72
0.55
1
0.72
1
1.9
1.7
1.8
0.4
1.7
0.9
1.7
Unit
APB2
GPIOG
ADC1
(2)
ADC2
TIM1
SPI1
TIM8
USART1
ADC3
mA
1. f
HCLK
= 72 MHz, f
APB1
= f
HCLK
/2, f
APB2
= f
HCLK
, default prescaler value for each peripheral.
2. Specific conditions for ADC: f
HCLK
= 56 MHz, f
APB1
= f
HCLK
/2, f
APB2
= f
HCLK
, f
ADCCLK
= f
APB2/4
, ADON bit
in the ADC_CR2 register is set to 1.
5.3.6
External clock source characteristics
High-speed external user clock generated from an external source
The characteristics given in
result from tests performed using an high-speed
external clock source, and under ambient temperature and supply voltage conditions
summarized in
Table 21.
Symbol
f
HSE_ext
V
HSEH
V
HSEL
t
w(HSE)
t
w(HSE)
t
r(HSE)
t
f(HSE)
C
in(HSE)
High-speed external user clock characteristics
Parameter
User external clock source
frequency
(1)
OSC_IN input pin high level voltage
OSC_IN input pin low level voltage
OSC_IN high or low time
(1)
OSC_IN rise or fall time
(1)
OSC_IN input capacitance
(1)
45
V
SS
V
IN
V
DD
5
55
±1
Conditions
Min
1
0.7V
DD
V
SS
16
ns
20
pF
%
µA
Typ
8
Max
25
V
DD
0.3V
DD
Unit
MHz
V
DuCy
(HSE)
Duty cycle
I
L
OSC_IN Input leakage current
1. Guaranteed by design, not tested in production.
54/123
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