noun
clock division circuit; frequency divider circuit
Technical term in electronics and computing; a circuit that reduces the frequency of an input clock signal by an integer factor.
この分周回路は入力クロックを1/4に分周します。
This clock division circuit divides the input clock by four.
分周器 is a more general term for a frequency divider device or module, while 分周回路 specifically refers to the circuit itself.
Compound of 分周 (frequency division) + 回路 (circuit).