Timer Dual Precision Dip14 556 Frequency: 500kHz Supply Voltage Min: 4.5 V Supply Voltage Max: 16 V Digital IC/case: Dip No. of Pins: 14 Operating Temperature Min: 0 °C Operating Temperature Max: 70 °C Packaging: Each MSL: MSL 1 – Unlimited SVHC: No SVHC (19-dec-2011) (15 – Jun – 2015) base number: 556 clock External input: No device marking: NE556NG4 IC Temperature Range: Commercial Logic Function Number: 556 No. of Timers: 2, Operating Frequency Max: 0.5MHz Operating Mode: Branch comfortable, Monostable Operating Temperature Range: 0 °C to + 70 °C Supply voltage range: 4.5 V to 16 V