SN8P2740 Series
ADC, OP-amp, Comparator 8-Bit Micro-Controller
SONiX TECHNOLOGY CO., LTD
Page 7
Version 2.0
1.2 SYSTEM BLOCK DIAGRAM
INTERRUPT
CONTROL
EXTERNAL
HIGH OSC.
ACC
INTERNAL
LOW RC
TIMING GENERATOR
RAM
SYSTEM REGISTERS
3-Level LVD
(Low Voltage Detector)
WATCHDOG TIMER
TIMER & COUNTER
P0
P1
PWM & Pulse Output
ALU
PC
FLAGS
IR
OTP
ROM
P4
INTERNAL HIGH
RC 16MHz
Comparator 0
Comparator 1
12-bit ADC
AIN0~AIN7
Comparator 2
OPA
CM0N, CM0P, CM0O
OPN, OPP, OPO
PWM0
Buzzer
BZ
CM2N, CM2P. CM2O
CM1N, CM1P, CM1O
1.3 PIN ASSIGNMENT
SN8P2743K (SKDIP 24 pin)
SN8P2743S (SOP 24 pin)
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
SN8P2742P (DIP 20 pin)
SN8P2742S (SOP 20 pin)
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