Description
The CD4049UB features logic level conversion using only one supply voltage, VDD. The input signal high level (VIH) can exceed the VDD supply voltage when this device is used for logic level conversion. This device is intended for use as a CMOS to DTL/TTL converter and can drive directly two DTL / TTL loads (VDD =5V, VOL ≤ 0.4V, and IOL ≥ 3.3mA). The device finds primary use where low power dissipation and/or high noise immunity is desired. This part should be considered a preferable replacement for CD4009UB or CD4010B in any inverter, current driver, or logic level conversion application due to its single power supply capability.

FEATUREs:
◾ Supply voltage range: 3V to 18V
◾ High Source and Sink Currents
◾ VIN can exceed VDD
◾ High-to-Low Level Logic Conversion
◾ High Sink Current for Driving x2 TTL Loads
◾ Maximum Input Current: 1 µA at 18 V over full
   temperature range
◾ ESD protection diodes on all inputs