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STM8L151x8 Folha de dados(PDF) 117 Page - STMicroelectronics

Nome de Peças STM8L151x8
Descrição Electrónicos  8-bit ultralow power MCU, up to 64 KB Flash 2 KB data EEPROM, RTC, LCD, timers, USARTs, I2C, SPIs, ADC, DAC, comparators
PDF  134 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM8L151x8 Folha de dados(HTML) 117 Page - STMicroelectronics

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DocID17943 Rev 6
117/134
STM8L15xx8, STM8L15xR6
Electrical parameters
121
Figure 44. Maximum dynamic current consumption on VREF+ supply pin during ADC
conversion
General PCB design guidelines
Power supply decoupling should be performed as shown in Figure 45 or Figure 46,
depending on whether VREF+ is connected to VDDA or not. Good quality ceramic 10 nF
capacitors should be used. They should be placed as close as possible to the chip.
ADC clock
Sampling (n cycles)
Conversion (12 cycles)
I
ref+
300μA
700μA
MS32625V1
Table 57. RAIN max for fADC = 16 MHz(1)
Ts
(cycles)
Ts
(µs)
RAIN max (kohm)
Slow channels
Fast channels
2.4 V < VDDA < 3.6 V 1.8 V < VDDA < 2.4 V 2.4 V < VDDA < 3.3 V 1.8 V < VDDA < 2.4 V
4
0.25
Not allowed
Not allowed
0.7
Not allowed
9
0.5625
0.8
Not allowed
2.0
1.0
16
1
2.0
0.8
4.0
3.0
24
1.5
3.0
1.8
6.0
4.5
48
3
6.8
4.0
15.0
10.0
96
6
15.0
10.0
30.0
20.0
192
12
32.0
25.0
50.0
40.0
384
24
50.0
50.0
50.0
50.0
1. Guaranteed by design, not tested in production.



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