CD4047 (CMOS Low-Power Monostable/Astable Multivibrator)

From the shop's description

CD4047 (CMOS Low-Power Monostable/Astable Multivibrator) is a high-quality electronic component designed for Arduino, prototyping, and educational electronics. CD4047 (CMOS Low-Power Monostable/Astable Multivibrator) It’s perfect for DIY makers, students, and anyone building custom electronic circuits or STEM kits.