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ST7MC1K2-Auto bảng dữ liệu(PDF) 298 Page - STMicroelectronics

tên linh kiện ST7MC1K2-Auto
Giải thích chi tiết về linh kiện  Clock, reset and supply management
PDF  371 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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ST7MC1K2-Auto bảng dữ liệu(HTML) 298 Page - STMicroelectronics

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Obsolete
Product(s)
- Obsolete
Product(s)
On-chip peripherals
ST7MC1K2-Auto, ST7MC1K6-Auto, ST7MC2S4-Auto, ST7MC2S6-Auto
298/371
Analog power supply
VDDA and VSSA are the supply and ground pins providing power to the converter part. They must be tied
to VDD and VSS respectively.
Figure 128. ADC block diagram
Digital A/D conversion result
The conversion is monotonic, meaning that the result never decreases if the analog input does not and
never increases if the analog input does not.
If the input voltage (VAIN) is greater than VREF+ (high-level voltage reference) then the conversion result is
FFh in the ADCDRMSB register and 03h in the ADCDRLSB register (without overflow indication).
If the input voltage (VAIN) is lower than VREF- (low-level voltage reference) then the conversion result in
the ADCDRMSB and ADCDRLSB registers is 00 00h.
The A/D converter is linear and the digital result of the conversion is stored in the ADCDRMSB and
ADCDRLSB registers. The accuracy of the conversion is described in the Section 12: Electrical
characteristics.
RAIN is the maximum recommended impedance for an analog input signal. If the impedance is too high,
there is a loss of accuracy due to leakage and sampling not being completed in the allotted time.
RREF is the value of the resistive bridge implemented in the device between VREF+ and VREF-.
CS2
CS1
EOC PRSC1PRSC0 ADON
CS0
ADCCSR
AIN0
AIN1
Analog to digital
converter
AINx
Analog
mux
D4
D3
D5
D9
D8
D7
D6
D2
ADCDRMSB
4
fADC
D1
D0
ADCDRLSB
0
0
00
00
CS3
MCCBCR
IT
request
ADCIE
ADSTS
Prescaler
Obsolete
Product(s)
- Obsolete
Product(s)



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