IS89C52-12PL datasheet(4/50 Pages) ISSI

Part #	IS89C52-12PL

Description	CMOS SINGLE CHIP 8-BIT MICROCONTROLLER with 8-Kbytes of FLASH

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Manufacturer	ISSI [Integrated Silicon Solution, Inc]

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4 / 50 page

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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IS89C52-12PL Datasheet(PDF) 4 Page - Integrated Silicon Solution, Inc

IS89C52-12PL Datasheet(HTML) 4 Page - Integrated Silicon Solution, Inc

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