NE556 Dual Bipolar Timers

NE556 provides two independent timing circuits of the NA555, NE555, SA555, or SE555 type in each package.

These circuits can be operated in the astable or monostable mode with external resistor-capacitor(RC) timing control. the basic timing provided by the RC time constant can be controlled actively by moduling the bias of the control-voltage input.

Features of NE556

• Low turn-off time

• Maximum operating frequency greater than 500 kHz

• Timing from microseconds to hours

• Operates in both astable and monostable modes

• Output can source or sink up to 200 mA

• Adjustable duty cycle

• TTL compatible

• Temperature stability of 0.005% per °C