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STM32L021D4 bảng dữ liệu(PDF) 67 Page - STMicroelectronics

tên linh kiện STM32L021D4
Giải thích chi tiết về linh kiện  Access line ultra-low-power 32-bit MCU Arm®-based Cortex®-M0, 16KB Flash, 2KB SRAM, 512B EEPROM, ADC, AES
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
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STM32L021D4 bảng dữ liệu(HTML) 67 Page - STMicroelectronics

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STM32L021x4
Electrical characteristics
93
6.3.7
Internal clock source characteristics
The parameters given in Table 37 are derived from tests performed under ambient
temperature and VDD supply voltage conditions summarized in Table 17.
High-speed internal 16 MHz (HSI16) RC oscillator
Figure 21. HSI16 minimum and maximum value versus temperature
Table 37. 16 MHz HSI16 oscillator characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fHSI16
Frequency
VDD = 3.0 V
-
16
-
MHz
TRIM
(1)(2)
1. The trimming step differs depending on the trimming code. It is usually negative on the codes which are
multiples of 16 (0x00, 0x10, 0x20, 0x30...0xE0).
HSI16 user-
trimmed resolution
Trimming code is not a multiple of 16
-
± 0.4
0.7
%
Trimming code is a multiple of 16
-
-
± 1.5
%
ACCHSI16
(2)
2. Guaranteed by characterization results, not tested in production.
Accuracy of the
factory-calibrated
HSI16 oscillator
VDDA = 3.0 V, TA = 25 °C
-1(3)
3. Guaranteed by test in production.
-1(3)
%
VDDA = 3.0 V, TA = 0 to 55 °C
-1.5
-
1.5
%
VDDA = 3.0 V, TA = -10 to 70 °C
-2
-
2
%
VDDA = 3.0 V, TA = -10 to 85 °C
-2.5
-
2
%
VDDA = 3.0 V, TA = -10 to 105 °C
-4
-
2
%
VDDA = 1.65 V to 3.6 V
TA = -40 to 125 °C
-5.45
-
3.25
%
tSU(HSI16)(2)
HSI16 oscillator
startup time
-
-
3.7
6
µs
IDD(HSI16)(2)
HSI16 oscillator
power consumption
-
-
100
140
µA



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