Baza Porad Serwisowych
SDA2083
a)
b)
ALE Vdd GND RESET SCL SDA
ALE 1 P2.7
TIMER0 40
OSCILLATOR PROGRAM DATA
P0.7
P2.6
MEMORY MEMORY INTERFACE
P0.6 P2.5
8Kbyte 128*8bit I2C
CPU P0.5 P2.4
ROM RAM
8051 TIMER1 P0.4 P2.3
P0.3 P2.2
P0.2 P2.1
P0.1 P2.0
P4.1/SCL
P0.0
GND P4.0/SDA
Internal BUS
Vdd P3.7
XTAL1 P3.6
XTAL2 P3.5
RESET P3.4
PWM0/P1.0 P3.3
PWM1/P1.1 P3.2
PWM2/P1.2 P3.1
PWM3/P1.3
P3.0
4*D/A
P1.4 P1.7
PORT P0 PORT P1 CONVERTER PORTP2 PORT P3
P1.5 20 21 P1.6
88 88
P0.0...P0.7 P1.0...P1.7 P2.0...P2.7 P3.0...P3.7
Rys.1. Mikrokontroler SDA2083: a) schemat blokowy, b) rozkład wyprowadzeń.
SERWIS ELEKTRONIKI
XTAL1
XTAL2