1, NE555C IC 2, original and Rohs 3, large quantity in stock 4, fast delivery ..LOWTURN OFF TIME MAXIMUM OPERATING FREQUENCY.GREATERTHAN 500kHz .TIMING FROMMICROSECONDS TO HOURS OPERATES IN BOTH ASTABLE AND.MONOSTABLEMODES HIGH OUTPUT CURRENT CAN SOURCE OR.SINK 200mA .ADJUSTABLE DUTY CYCLE .TTL COMPATIBLE TEMPERATURE STABILITY OF 0.005%PERoC NE555C IC