IC89LV52 Datasheet, PDF (4/22 Pages) Integrated Circuit Solution Inc – CMOS SINGLE CHIP 8-BIT MICROCONTROLLER with 8(4)-Kbytes of FLASH

IC89LV52(51)A
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
&
8K FLASH
3 LOCK BITS
B
REGISTER
STACK
POINT
PCON SCON
T2CON TH0
TL1 TH2
RCAP2L SBUF
TMOD TCON
TL0 TH1
TL2 RCAP2H
IE
IP
INTERRUPT BLOCK
SERIAL PORT BLOCK
TIMER BLOCK
ACC
TMP2
TMP1
ALU
PSW
PSEN
ALE/PROG
RST
EA/VPP
TIMING
AND
CONTROL
OSCILLATOR
XTAL1
XTAL2
P3
LATCH
P3
DRIVERS
P1
LATCH
P1
DRIVERS
PROGRAM
ADDRESS
REGISTER
PROGRAM
COUNTER
PC
INCREMENTER
BUFFER
DPTR
P3.0-P3.7
P1.0-P1.7
Figure 4. IC89LV52(51)A Block Diagram
4
Integrated Circuit Solution Inc.
MC010-0D 11/16/2001