SN8P2740 Series
ADC, OP-amp, Comparator 8-Bit Micro-Controller
U4: SN8P2743 DIP form connector for connecting to user‟s target board.
VSS
XIN/P0.6
XOUT/P0.5/BZ
RST/VPP/P0.4
P0.0/INT0
1
2
3
4
5
6
7
8
9
U
24 VDD
23 P4.7/AIN7
22 P4.6/AIN6
21 P4.5/AIN5
20 P4.4/AIN4
P0.1/PWM0
P0.2/CM0P
P0.3/CM0N
P1.6/CM1P
P1.5/CM1N 10
P1.4/CM2P 11
P1.3/CM2N 12
19 P4.3/AIN3/CM0O
18 P4.2/AIN2/CM1O
17 P4.1/AIN1/CM2O
16 P4.0/AIN0/AVREFH
15 P1.0/OPN
14 P1.1/OPP
13 P1.2/OPO
U10: SN8P2742 DIP form connector for connecting to user‟s target board.
VSS
XIN/P0.6
XOUT/P0.5/BZ
RST/VPP/P0.4/ P0.1/PWM0
P0.2/CM0P
1
2
3
4
5
6
7
8
9
U
20 VDD
19 P4.5/AIN5
18 P4.4/AIN4
17 P4.3/AIN3/CM0O
16 P4.2/AIN2/CM1O
15 P4.1/AIN1/CM2O
14 P4.0/AIN0/AVREFH
13 P1.0/OPN
P0.3/CM0N
P1.6/CM1P
P1.5/CM1N
P1.4/CM2P
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
SONiX TECHNOLOGY CO., LTD
Page 122
Version 2.0
SONIX [ SONIX TECHNOLOGY COMPANY ]
