IC80C54 Datasheet, PDF (4/22 Pages) Integrated Circuit Solution Inc – CMOS SINGLE CHIP 8-BIT MICROCONTROLLER

IC80C54
IC80C58
P2.0-P2.7
VCC
GND
P2
DRIVERS
RAM ADDR
REGISTER
ADDRESS
DECODER
& 256
BYTES RAM
P2
LATCH
P0.0-P0.7
P0
DRIVERS
P0
LATCH
ADDRESS
DECODER
& 16/32K
ROM
2 LOCK BITS
B
REGISTER
STACK
POINT
PCON SCON
T2CON TH0
TL1 TH2
RCAP2L SBUF
TMOD TCON
TL0 TH1
TL2 RCAP2H
IE
IP
INTERRUPT
SERIAL PORT
AND TIMER BLOCK
ACC
TMP2
TMP1
ALU
PSW
PSEN
ALE
RST
EA
TIMING
AND
CONTROL
PD
OSCILLATOR
XTAL1
XTAL2
P3
LATCH
P3
DRIVERS
P1
LATCH
P1
DRIVERS
P3.0-P3.7
P1.0-P1.7
Figure 4. IC80C54/58 Block Diagram
PROGRAM
ADDRESS
REGISTER
PROGRAM
COUNTER
PC
INCREMENTER
BUFFER
DPTR
4
Integrated Circuit Solution Inc.
MC003-0B