Digital Logic

Least Significant Bit (LSB)

The bit position with the smallest weight (2⁰) in a binary number, typically the rightmost bit.

Detailed Explanation

The LSB represents the ones position in binary. In multi-bit values, bit 0 is typically the LSB. The LSB alternates every count (0,1,0,1...) in binary counters.

LSB-first transmission sends the least significant bit first (common in serial protocols). Whether to index from LSB or MSB varies by convention and protocol.