Demonstration circuit 1562A is an engineering tool to design and evaluate the LTC699X-X family of TimerBlox circuits. The center section of the board contains a pre-configured TimerBlox function. DC1562A comes in twelve timing function variations as outlined in Table 1. Surrounding the center board is a ”playground” prototyping area. The prototyping area has pads for Dip-8, S8, MS8, or S6 packages with bread boarding connections to each pin and two convenient power buses and ground bus surrounding the entire area. This area is for conditioning signals to control the timer function and for adding loads controlled in time.