All TimerBlox parts are simple 6-leaded devices. To provide a wide range of operation, the TimerBlox parts have a special DIVIDER (DIV) pin. The divider input is actually a 4-bit ADC; a voltage between V+ and GND on the DIV pin will set the device’s frequency or time range. The easiest way to provide this voltage is to use a resistor divider. Once this frequency or time range is set, the user sets the exact frequency or time by adding a resistor on the SET pin. To provide additional functionality, the highest bit of the DIV input ADC (4th bit) configures a Mode Bit, which is specific to each part. For example, the Mode Bit configures the LTC6993, one-shot pulse generator, to generate a positive or negative output pulse. Setting this bit is quite easy. Once the resistor divider has been determined for the desired frequency or time range, inverting the resistor divider will change the Mode Bit. Each TimerBlox part has an input pin that is a Part Specific Function. This input is used for output enable on the VCO, reset on the very low frequency clock, analog control input for the PWM, trigger input for the one-shot generator, and an input for the delay block.