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
ST TS555CN Low Power Single CMOS Timer PDIP8 5 Pieces OMB2-01 | Rich Electronics
Ic Timer Low Power Cmos Dip8 555 Price For 1 Each : Amazon.co.uk: Electronics & Photo
10 of 555 CMOS TIMER IC 8 PIN LOW POWER NE555 TS555CN PULSE GENERATOR PDIP 8 | eBay