Texas Instruments LM555CM/NOPB, Timer Circuit, 8-Pin SOIC, Mounting Type: Surface Mount, Timer Type: Standard, Number of Internal Timers: 1, Minimum Operating Supply Voltage: 4.5 V, Maximum Operating Supply Voltage: 16 V, Minimum Operating Temperature: 0 °C, Maximum Operating Temperature: +70 °C, Maximum Low Level Output Current: 200mA, Maximum High Level Output Current: -200mA, Dimensions: 4.9 x 3.9 x 1.45mm, Length: 4.9mm, Priced to Clear: Yes