System circuit (not) Minimum (Evaluation Board) AT89C2051 and AT89C4051
Maybe we are more familiar with the term Minimum System AT89C2051 circuit, but this time I present a circuit which is not only a series of Minimum System AT89C2051 but more than that.
RS-232 interface, DB-9
Header for LCD display
I2C, PCF8574 I / O extender
AT24C04, I2C EEPROM
The circuit is more deserves to be called Evaluation Board AT89C2051 and AT89C4051. Some of the advantages of circuit Minimum System AT89C2051 / AT89C2051 and AT89C4051 Evaluation Board which I was present this time, hardware-hardware support below:
RS-232 interface, DB-9
Header for LCD display
I2C, PCF8574 I / O extender
AT24C04, I2C EEPROM
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