The TLC556CD can operate up to 2.1 MHz, but the maximum frequency is dependent on the specific application and the values of the external components.
The values of the timing resistors and capacitors depend on the desired frequency and duty cycle of the output signal. A good starting point is to use the values recommended in the datasheet, and then adjust them based on the specific application requirements.
The TLC556CD can operate with a supply voltage ranging from 4.75V to 18V.
No, the TLC556CD is a timer IC and not a voltage regulator. It is designed to generate a timing signal, not to regulate voltage.
To synchronize multiple TLC556CD timers, you can connect the trigger inputs of each timer together and drive them with a common clock signal.