SN8P2740 Series
ADC, OP-amp, Comparator 8-Bit Micro-Controller
SONiX TECHNOLOGY CO., LTD
Page 122
Version 2.0
U4: SN8P2743
DIP form connector for connecting to user‟s target board.
VSS 1
U
24 VDD
XIN/P0.6 2
23 P4.7/AIN7
XOUT/P0.5/BZ 3
22 P4.6/AIN6
RST/VPP/P0.4 4
21 P4.5/AIN5
P0.0/INT0 5
20 P4.4/AIN4
P0.1/PWM0 6
19 P4.3/AIN3/CM0O
P0.2/CM0P 7
18 P4.2/AIN2/CM1O
P0.3/CM0N 8
17 P4.1/AIN1/CM2O
P1.6/CM1P 9
16 P4.0/AIN0/AVREFH
P1.5/CM1N 10
15 P1.0/OPN
P1.4/CM2P 11
14 P1.1/OPP
P1.3/CM2N 12
13 P1.2/OPO
U10: SN8P2742 DIP form connector fo
r connecting to user‟s target board.
VSS 1
U
20 VDD
XIN/P0.6 2
19 P4.5/AIN5
XOUT/P0.5/BZ 3
18 P4.4/AIN4
RST/VPP/P0.4/ P0.1/PWM0 4
17 P4.3/AIN3/CM0O
P0.2/CM0P 5
16 P4.2/AIN2/CM1O
P0.3/CM0N 6
15 P4.1/AIN1/CM2O
P1.6/CM1P 7
14 P4.0/AIN0/AVREFH
P1.5/CM1N 8
13 P1.0/OPN
P1.4/CM2P 9
12 P1.1/OPP
P1.3/CM2N 10
11 P1.2/OPO
C32~C39: Connect 0.1uF capacitors to AIN0~AIN7 input which are ADC channel 0~7 bypass capacitors.
C40: Connect 0.1uF capacitors to AVREFH input which are ADC reference voltage bypass capacitors.
C13: CMP0 output pin
‟s 0.1F bypass capacitor.
C22: CMP1 output pin
‟s 0.1F bypass capacitor.
C18: CMP2 output pin
‟s 0.1F bypass capacitor.
C17: OP-Amp negative input pin
‟s 0.1F bypass capacitor.
C21: OP-Amp positive input pin
‟s 0.1F bypass capacitor.
C12: OP-Amp output pin
‟s 0.1F bypass capacitor.
C14: CMP0 positive input pin
‟s 0.1F bypass capacitor.
C15: CMP0 negative input pin
‟s 0.1F bypass capacitor.
C23: CMP1 positive input pin
‟s 0.1F bypass capacitor.
C24: CMP1 negative input pin
‟s 0.1F bypass capacitor.
C19: CMP2 positive input pin
‟s 0.1F bypass capacitor.
C20: CMP2 negative input pin
‟s 0.1F bypass capacitor.
JP24: Chip select (SN8P2742: Jumper short, SN8P2743: Open).
JP25: P0.1 output MOS circuit power source