74HCT221DB,118概述
IC DECODER/DEMUX 3-8 LINE 16SSOP
单稳态多谐振荡器 31 ns 16-SSOP
得捷:
IC MULTIVIBRATOR 31NS 16SSOP
艾睿:
Monostable Multivibrator Dual 16-Pin SSOP T/R
Win Source:
Monostable Multivibrator 31ns 16-SSOP