Question
Download Solution PDFIn 8051, Pin number 30 is used:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDF8051 microcontroller is a 40-Pin DIP (dual in-line package).
- PIN 30 is called ALE (address latch enable). It is used to control the demultiplexing of address and data bus.
- PIN 31 is called external Access Enable (EAE) Pin and used for external program memory access.
- PIN 29 is called program store enable (PSEN) Pin and is used to read external program memory.
- PIN 18 and 19 are used to control clock pulse generated by a quartz crystal oscillator.
Important Points:
PIN Diagram of 8051 Microcontroller.
NOTE: PORT 0 to 3, all bidirectional input / output pins.
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