556 Dual 555 universal timers. +----------+ 1Dis |1 +--+ 14| VCC 1Thr |2 13| 2Dis 1CV |3 12| 2Thr /1RST |4 556 11| 2CV 1Q |5 10| /2RST 1TR |6 9| 2Q GND |7 8| 2TR +----------+ [This information is part of the GIICM]