Voltage Reference (Vref)
This description applies to PSoC™ 3 and PSoC™ 5LP devices. The Voltage Reference (Vref) component provides one of several voltage reference outputs. The 1.024 V and 0.256 V outputs are temperature compensated using the bandgap principle to achieve excellent stability.
Voltage references and supplies
Bandgap principle to achieve timer, temperature, and voltage stability