10PCS ICM7555ID 7555 SOP-8 General purpose CMOS timer | eBay
Reverse engineering the popular 555 timer chip (CMOS version)
CMOS 555 Timer - TS555 vs NE555 Power Consumption - YouTube
20PCS ICM7555ID 7555 SOP-8 General Purpose CMOS Timer New Good QUANLITY: Amazon.com: Industrial & Scientific
555 Timer
How To Design And Build Simple Cmos Timers
Bestol 10PCS TS555CN 555 DIP8 IC Timer Low Power CMOS: Amazon.com: Industrial & Scientific
TEXAS INSTRUMENTS TLC551/TLC555 CMOS Timer Control And Trigger Reference Voltage Generator - Multisim Live
Bestol 10PCS TS555CN 555 DIP8 IC Timer Low Power CMOS: Amazon.com: Industrial & Scientific
TLC551 IC Timer - CMOS 555 with 1V to 15V power, up to 1.8MHz [TLC551CP] : ID 5222 : $3.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Reverse engineering the popular 555 timer chip (CMOS version)