Table 40. Hsi48 Oscillator Characteristics; Figure 21. Hsi48 Oscillator Accuracy Characterization Results - STMicroelectronics STM32F042G4 Manual

STM32F042xx
High-speed internal 48 MHz (HSI48) RC oscillator
Symbol
f
HSI48
TRIM
DuCy
(HSI48)
ACC
HSI48
t
su(HSI48)
I
DDA(HSI48)
1. V = 3.3 V, T
DDA
2. Guaranteed by design, not tested in production.
3. Data based on characterization results, not tested in production.

Table 40. HSI48 oscillator characteristics

Parameter
Frequency
HSI48 user-trimming step
Duty cycle
Accuracy of the HSI48
oscillator (factory calibrated)
HSI48 oscillator startup time
HSI48 oscillator power
consumption
= –40 to 105 °C unless otherwise specified.
A

Figure 21. HSI48 oscillator accuracy characterization results

DocID025832 Rev 2
Conditions Min
0.09
45
T = –40 to 105 °C -4.9
A
T = –10 to 85 °C -4.1
A
T = 0 to 70 °C -3.8
A
T = 25 °C -2.8
A
Electrical characteristics
(1)
Typ Max
- 48 -
(2) (2)
0.14 0.2
(2) (2)
- 55
(3) (3)
- 4.7
(3) (3)
- 3.7
(3) (3)
- 3.4
- 2.9
(2)
- - 6
(2)
- 312 350
Unit
MHz
%
%
%
%
%
%
μs
μA
71/117
94