AT89S52-24AC Ver la hoja de datos (PDF) - Atmel Corporation

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AT89S52-24AC

8-bit Microcontroller with 8K Bytes In-System Programmable Flash

Atmel Corporation 

Figure 22-1. Programming the Flash Memory (Parallel Mode)

ADDR. A0 - A7

0000H/1FFFH

A8 - A12

SEE FLASH

PROGRAMMING

MODES TABLE

AT89S52

P1.0-P1.7

VCC

P2.0 - P2.4 P0

P2.6

P2.7

ALE

P3.3

P3.6

P3.7

XTAL 2

EA

VCC

PGM

DATA

PROG

VIH/VPP

3-33 MHz

P3.0

RDY/

BSY

XTAL1

RST

VIH

GND

PSEN

Figure 22-2. Verifying the Flash Memory (Parallel Mode)

ADDR. A0 - A7

0000H/1FFFH

A8 - A12

SEE FLASH

PROGRAMMING

MODES TABLE

AT89S52

P1.0-P1.7

VCC

P2.0 - P2.4 P0

P2.6

P2.7

ALE

P3.3

P3.6

P3.7

XTAL 2

EA

VCC

PGM DATA

(USE 10K

PULLUPS)

VIH

3-33 MHz

XTAL1

RST

VIH

GND

PSEN

24 AT89S52

1919C–MICRO–3/05

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