The PT8A2512 is a CMOS LSI chip designed for simple toaster. It provides low cost solution for toaster. The chip is enclosed in a 4 pin TO-94. Applications * Toaster. Pin Assignment PT8A2512NE 1 2 3 4 TO-94 1-RELAY 2-VCC 3-OSC 4-GND Fig 2 PT8A2512NE pin assignment Pin Description Name Pin.