Basic
2051'Circuit
Wichit Sirichote, kswichit@kmitl.ac.th
A basic circuit of the 89C2051 shown here can be made
easily using point-to-point soldering with a universal PCB. Use an ordinary
20-pin socket, do not use a circle-pin socket. D1 is a small dot LED. U2
can be either 7805 or 78L05. U3 is optional for correcting any polarity
DC adapter. Without the 2051 chip in the socket, checks the connection,
then measures +5V between pin 20 and pin 10. Test the LED by shorting P1.7
pin to GND.
Experimenting
the 2051 with C Programming | Next
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Last updated, 16 October 2542