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STM8L052R8 Datasheet(PDF) 74 Page - STMicroelectronics

Part # STM8L052R8
Description  Value Line, 8-bit ultralow power MCU, 64-KB Flash,256-byte data EEPROM, RTC, LCD, timers, USART, I2C, SPI, ADC
PDF  109 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM8L052R8 Datasheet(HTML) 74 Page - STMicroelectronics

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Electrical parameters
STM8L052R8
74/109
Doc ID023337 Rev 2
8.3.4
Clock and timing characteristics
HSE external clock (HSEBYP = 1 in CLK_ECKCR)
Subject to general operating conditions for VDD and TA.
Table 25.
Current consumption under external reset
Symbol
Parameter
Conditions
Typ.
Unit
IDD(RST)
Supply current under
external reset (1)
PB1/PB3/PA5 pins are
externally tied to VDD
VDD = 1.8 V
48
µA
VDD = 3 V
80
VDD = 3.6 V
95
1.
All pins except PA0, PB0 and PB4 are floating under reset. PA0, PB0 and PB4 are configured with pull-up under reset.
PB1, PB3 and PA5 must be tied externally under reset to avoid the consumption due to their schmitt trigger.
Table 26.
HSE external clock characteristics
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
fHSE_ext
(1)
1.
Guaranteed by design, not tested in production.
External clock source
frequency
116
MHz
VHSEH
OSC_IN input pin high level
voltage
0.7 x VDD
VDD
V
VHSEL
OSC_IN input pin low level
voltage
VSS
0.3 x VDD
Cin(HSE)
(1)
OSC_IN input capacitance
2.6
pF
ILEAK_HSE
OSC_IN input leakage
current
VSS < VIN < VDD
±1
µA



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