Timer drive LED display circuit
Source: InternetPublisher:小胖友 Keywords: Timer LED display WIDTH Updated: 2021/04/03
Under the supervision of the microprocessor, the timer controlled by Intersil's 7227 microprocessor can directly drive the LED display . The three-state four-bit data bus can be used as a control word reader, which can add or subtract words, reset memory, load and send calculator data, enter variable registration numbers, or preset counter values.
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