5 V tolerant hot carrier injection (HCI) protection circuit
5 volt CMOS driver circuit for driving 3.3 volt line
5 Volt tolerant 3.3 volt output buffer
5-volt tolerant 3-volt drive push-pull buffer/driver
50% Duty cycle signal generator
5V output driver on 2.5V technology
5v tolerant I/O circuit
5V-tolerant receiver for low voltage CMOS technologies