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89C52 Datasheet(PDF) 4 Page - Integrated Silicon Solution, Inc

Part # 89C52
Description  CMOS SINGLE CHIP 8-BIT MICROCONTROLLER with 8-Kbytes of FLASH
PDF  50 Pages
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Manufacturer  ISSI [Integrated Silicon Solution, Inc]
Direct Link  http://www.issi.com
Logo ISSI - Integrated Silicon Solution, Inc

89C52 Datasheet(HTML) 4 Page - Integrated Silicon Solution, Inc

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IS89C52
4
Integrated Silicon Solution, Inc. — 1-800-379-4774
MC013-1C
11/21/98
ISSI®
Figure 4. IS89C52 Block Diagram
PCON
SCON
TMOD
TCON
T2CON
TH0
TL0
TH1
TL1
TH2
TL2
RCAP2H
RCAP2L SBUF
IE
IP
INTERRUPT BLOCK
SERIAL PORT BLOCK
TIMER BLOCK
P3
DRIVERS
P3
LATCH
PSW
TIMING
AND
CONTROL
OSCILLATOR
XTAL2
XTAL1
P3.0-P3.7
P1
DRIVERS
P1
LATCH
DPTR
BUFFER
PC
INCREMENTER
PROGRAM
COUNTER
PROGRAM
ADDRESS
REGISTER
P1.0-P1.7
P2.0-P2.7
P0.0-P0.7
PSEN
ALE/PROG
RST
EA/VPP
TMP2
ALU
ACC
STACK
POINT
B
REGISTER
Vcc
GND
RAM ADDR
REGISTER
P2
LATCH
P0
LATCH
P2
DRIVERS
P0
DRIVERS
ADDRESS
DECODER
& 256
BYTES RAM
ADDRESS
DECODER
&
8K FLASH
3 LOCK BITS
&
32 BYTES
ENCRYPTION
TMP1



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