Datasheet

Electrical characteristics STM32F051x
84/105 Doc ID 022265 Rev 3
6.3.18 Temperature sensor characteristics
6.3.19 V
BAT
monitoring characteristics
6.3.20 Timer characteristics
The parameters given in Ta ble 6 1 are guaranteed by design.
Refer to Section 6.3.13: I/O port characteristics for details on the input/output alternate
function characteristics (output compare, input capture, external clock, PWM output).
Table 59. TS characteristics
Symbol Parameter Min Typ Max Unit
T
L
(1)
1. Guaranteed by design, not tested in production.
V
SENSE
linearity with temperature - ±1 ±2°C
Avg_Slope
(1)
Average slope 4.0 4.3 4.6 mV/°C
V
25
Voltage at 25 °C 1.34 1.43 1.52 V
t
START
(1)
Startup time 4 - 10 µs
T
S_temp
(1)(2)
2. Shortest sampling time can be determined in the application by multiple iterations.
ADC sampling time when reading the
temperature
17.1 - - µs
Table 60. V
BAT
monitoring characteristics
Symbol Parameter Min Typ Max Unit
R Resistor bridge for V
BAT
-50-KΩ
Q
Ratio on V
BAT
measurement - 2 -
Er
(1)
1. Guaranteed by design, not tested in production.
Error on Q –1 - +1 %
T
S_vbat
(1)(2)
2. Shortest sampling time can be determined in the application by multiple iterations.
ADC sampling time when reading the V
BAT
1mV accuracy
5--µs
Table 61. TIMx
(1)
characteristics
Symbol Parameter Conditions Min Max Unit
t
res(TIM)
Timer resolution time
1-
t
TIMxCLK
f
TIMxCLK
= 48 MHz 20.8 - ns
f
EXT
Timer external clock
frequency on CH1 to CH4
0
f
TIMxCLK
/2
MHz
f
TIMxCLK
= 48 MHz 0 24 MHz
Res
TIM
Timer resolution
TIMx (except TIM2) - 16
bit
TIM2 - 32