https://brickrknowledge.org/zh-hans/project/monostable-multivibrator/
Monostable Multivibrator - Brick'R'knowledge
A monstable multivibrator knows exactly one state where […]
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https://electronicspices.com/product/cd4538-dual-precision-monostable-multivibrator-smd-ic
CD4538 Dual Precision Monostable Multivibrator SMD IC 3V-15V | Electronic Spices
CD4538 Dual Precision Monostable Multivibrator SMD IC, operates from 3V to 15V, low 5nA standby current, high noise immunity, compact design for precise timing
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