AT89S51-24 View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

AT89S51-24

8-bit Microcontroller with 4K Bytes In-System Programmable Flash

Atmel Corporation 

Figure 18-2. Flash Memory Serial Downloading

INSTRUCTION

INPUT

DATA OUTPUT

CLOCK IN

3-33 MHz

VCC

AT89S51

VCC

P1.5/MOSI

P1.6/MISO

P1.7/SCK

XTAL2

AT89S51

XTAL1

RST

VIH

GND

19. Flash Programming and Verification Waveforms – Serial Mode

Figure 19-1. Serial Programming Waveforms

7

6

5

4

3

2

1

0

19

2487C–MICRO–03/05

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