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STM32L021D4 데이터시트(PDF) 68 Page - STMicroelectronics

부품명 STM32L021D4
상세설명  Access line ultra-low-power 32-bit MCU Arm®-based Cortex®-M0, 16KB Flash, 2KB SRAM, 512B EEPROM, ADC, AES
PDF  114 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
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STM32L021D4 데이터시트(HTML) 68 Page - STMicroelectronics

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Electrical characteristics
STM32L021x4
68/114
DocID027982 Rev 5
Low-speed internal (LSI) RC oscillator
Multi-speed internal (MSI) RC oscillator
Table 38. LSI oscillator characteristics
Symbol
Parameter
Min
Typ
Max
Unit
fLSI(1)
1. Guaranteed by test in production.
LSI frequency
26
38
56
kHz
DLSI(2)
2. This is a deviation for an individual part, once the initial frequency has been measured.
LSI oscillator frequency drift
0°C
≤ TA ≤ 85°C
-10
-
4
%
tsu(LSI)(3)
3. Guaranteed by design, not tested in production.
LSI oscillator startup time
-
-
200
µs
IDD(LSI)(3) LSI oscillator power consumption
-
400
510
nA
Table 39. MSI oscillator characteristics
Symbol
Parameter
Condition
Typ
Max Unit
fMSI
Frequency after factory calibration, done at
VDD= 3.3 V and TA = 25 °C
MSI range 0
65.5
-
kHz
MSI range 1
131
-
MSI range 2
262
-
MSI range 3
524
-
MSI range 4
1.05
-
MHz
MSI range 5
2.1
-
MSI range 6
4.2
-
ACCMSI
Frequency error after factory calibration
-
± 0.5
-
%
DTEMP(MSI)(1)
MSI oscillator frequency drift
0°C
≤ TA ≤ 85 °C
-
± 3-
%
DVOLT(MSI)(1)
MSI oscillator frequency drift
1.65 V
≤ VDD ≤ 3.6 V, TA = 25 °C
--
2.5
%/V
IDD(MSI)(2)
MSI oscillator power consumption
MSI range 0
0.75
-
µA
MSI range 1
1
-
MSI range 2
1.5
-
MSI range 3
2.5
-
MSI range 4
4.5
-
MSI range 5
8
-
MSI range 6
15
-



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