The CD449UBE provides six inverting buffers with high current output capability suitable for driving TTL or high capacitive loads. Since input voltages in excess of the buffers’supply voltage are permitted, the buffers may also be used to convert logic levels of up to 15 V to standard TTL levels.
4049 Buffer Features:-
Accepts input voltages in excess of the supply voltage
Fully static operation
5 V, 10 V, and 15 V parametric ratings
Standardized symmetrical output characteristics
Specified from 40 C to +85 C
Complies with JEDEC standard JESD 13-B