AT89S51-HD44780-4BITS-EXT-EEPROM

Matheus Peschke
162
0
0
3
Demonstration of a connection between a HITACHI 44780 LCD Controller module and an Atmel AT89S51 MCU, using code flashed to an external EEPROM. Code available at https://github.com/mpeschke/hd44780_for_sdcc_51
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AT89S51-HD44780-I2C
AT89S51-HD44780-I2C

Matheus Peschke

AT89S51-HD44780-4BITS
AT89S51-HD44780-4BITS

Matheus Peschke

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Published: May 27, 2023 In development

Project Description

Project description

HD44780_FOR_SDCC_51 github project.

The LCD 1602A module, version 3, with a 4 bit interface, using an external EEPROM.

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Component (10)
Qty
Description
Resistor

R4, R2, R5, R1

4
Generic Resistor (33KΩ)
AT28C64B-15PU

U2

1
64K (8K x 8) Parallel EEPROM with Page Write and Software Data Protection
1N4007

D1, D2

2
General Purpose Rectifier
Capacitor

C1, C2

2
Generic Capacitor (Non-Polarized) (27pF)

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