SN8F2280 Series
USB 2.0 Full-Speed 8-Bit Micro-Controller
1.2 SYSTEM BLOCK DIAGRAM
6MHz/12MHz/16MHz
PC
External Oscillator
LVD
Flash
memory
Internal
Low RC
IR
WATCHDOG TIMER
PLL
FLAGS
VREG33
3.3v REGULATOR
2.5v REGULATOR
TIMING GENERATOR
ALU
D+
D-
RAM
Full speed USB SIE
ACC
SYSTEM REGISTERS
TIMER & COUNTER
INTERRUPT
CONTROL
SIO PWM A/D UART
MSP
P0
P1
P2
P4
P5
SONiX TECHNOLOGY CO., LTD
Page 10
Version 1.1