SN8P2501D
8-Bit Micro-Controller
SONiX TECHNOLOGY CO., LTD
Page 7
Version 1.5
1.2 SYSTEM BLOCK DIAGRAM
INTERRUPT
CONTROL
EXTERNAL
HIGH OSC.
ACC
INTERNAL
LOW RC
INTERNAL HIGH
RC 16MHz
TIMING GENERATOR
RAM
SYSTEM REGISTERS
3 Level LVD
(Low Voltage Detector)
WATCHDOG TIMER
TIMER & COUNTER
P0
P5
P1
PWM / BUZZER
ALU
PC
FLAGS
IR
OTP
ROM
PWM0 /
BUZZER0
P2
1.3 PIN ASSIGNMENT
SN8P2501DP (P-DIP 14 pins)
SN8P2501DS (SOP 14 pins)
P2.2
1
U
14
P2.3
P2.1
2
13
P2.4
P2.0
3
12
P2.5
VDD
4
11
VSS
P1.3/XIN
5
10
P0.0/INT0
P1.2/XOUT
6
9
P1.0
P1.1/RST/VPP
7
8
P5.4/BZ0/PWM0
SN8P2501DP
SN8P2501DS
SN8P2501DX (SSOP 16 pins)
P2.2
1
U
16
P2.3
P2.1
2
15
P2.4
P2.0
3
14
P2.5
VDD
4
13
VSS
VDD
5
12
VSS
P1.3/XIN
6
11
P0.0/INT0
P1.2/XOUT
7
10
P1.0
P1.1/RST/VPP
8
9
P5.4/BZ0/PWM0
SN8P2501DX