The "8051" is a (still) very popular chip in the Intel MCS-51 micro controller series.

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What is a good way to in-circuit update the program on a SyncMOS 5964?

I want something that can re-program a PQFP SyncMOS SM5964 chip already soldered to the target circuit board. I picture a ribbon cable that I plug between some sort of 2x8 or so header connector ...
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8051 SMARTCARD DESIGN

I'm trying to design a smart card interface using one 8051 UART and a Pierce oscillator circuit. The project seems to be working, because I'm getting response from the smart card. However, I'm having ...
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How to control interrupt using timer in microcontroller

Hi I am using 8051 microcontroller. I do have a digital Water Meter which gives binary 0 1 0 1 type data. I attached it with 8051 INT1 so that i can get interrupt. Now when ever water flow through ...