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參數資料
型號: W83637HF
廠商: WINBOND ELECTRONICS CORP
英文描述: LPC I/O
中文描述: LPC的I / O
文件頁數: 31/149頁
文件大小: 936K
代理商: W83637HF
W83637HF
Publication Release Date: June 25, 2003
- 26 -
Revision 1.3
6.3 Analog Inputs
The maximum input voltage of the analog pin is 4.096V because the 8-bit ADC has a 16mv LSB.
Really, the application of the PC monitoring would most often be connected to power suppliers. The
CPU V-core voltage, +3.3V, battery(pin 74) and 5VSB voltage can directly connected to these analog
inputs. The +12V voltage inputs should be reduced a factor with external resistors so as to obtain the
input range. As Figure 6.2 shows.
Figure. 6.2
Pin 100
CPUVCORE
+3.3VIN
Pin 98
Pin 99
VIN1
VIN2
VBAT
Pin 97
Pin 74
R4
R1
V1
Positive Voltage Input
Negative Voltage Input
8-bit ADC
with
16mV LSB
10K, 1%
RTHM
VREF
Pin 101
VTIN
CPUTIN
SYSTIN
Pin 102
Pin 103
Pin 104
5VSB
Pin 61
R3
R5
10K@25 C, beta=3435K
R2
R
V2
+5VIN
Pin 114
Power Inputs
30K, 1%
R
CPUD-
Pin 111
CAP,3300p
CPUD+
CPUD-
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