556 Dual Timer datasheet

It has been found that there are many uses of two (or more) 555 timers for an electronic circuit, which is useful enough to fit two 555 timers into a single chip called a 556 dual timer chip. The 556 dual-timer chip will be released as a 14-pin DIP package. 555 Two timers share common supplies and ground pins.

The remaining 12 assigned to the inputs and outputs of the pins of the individual 555 timer. 556 The chip 555 timer for the timer for each pin connections. As a bonus, the standard chip timer 555 pin-out is included.