24 bit-address in hex

How many hex digits doe开发者_开发百科s a 24-bit memory address have?

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One hex digit corresponds to 4 binary digits(bits)

for 24 bits, there are 3 bytes(8bits) which makes 6 hex digits.

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• 8 bits = 1 byte
• 24 bits = 3 bytes
• 1 byte = 2 hex characters
• 2 bytes = 4 hex characters
• 3 bytes = 6 hex characters

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Each hex digit handles four bits, so a 24-bit address requires six hex digits. You can see the relationship between hex and binary here:

Hex  Binary       Hex  Binary
---  ------       ---  ------
 0    0000         8    1000
 1    0001         9    1001
 2    0010         A    1010
 3    0011         B    1011
 4    0100         C    1100
 5    0101         D    1101
 6    0110         E    1110
 7    0111         F    1111

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every hex is 4 bits, every number in base 16, is 2^4 hence 4 digits in base 2