TheHCC4049UB/4050B(extended temperature range) and the HCF4049UB/4050B(intermediate temperature range) are monolithic integrated circuits available in 16-lead dual in-line plastic or ceramic package and plastic micro package.

TheHCC/HCF4049UB/4050Bare inverting and non-inverting hex buffers, respectively, and feature logic-level conversion using only one supply voltage (VDD). The input-signal high level (VIH) can exceed the VDDsupply voltage when these devices are used for logic level conversions. These devices are in tended for use as COS/MOS to DTL/TTL converters and can drive directly two DTL/TTL loads (VDD=5V, VOL≤0.4V, and IOL≥ 3.2mA).