Texas Instruments NE556N, Timer Circuit, Dual, 14-Pin PDIP, Mounting Type: Through Hole, Timer Type: Standard, Number of Internal Timers: 2, Minimum Operating Supply Voltage: 4.5 V, Maximum Operating Supply Voltage: 16 V, Minimum Operating Temperature: 0 °C, Maximum Operating Temperature: +70 °C, Maximum Quiescent Current: 30mA, Maximum Low Level Output Current: 200mA, Maximum High Level Output Current: -200mA, Dimensions: 19.3 x 6.35 x 4.57mm, Length: 19.3mm