深圳市中立信电子科技有限公司

1 Features

1• CD4049UB Inverting

• CD4050B Noninverting

• High Sink Current for Driving 2 TTL Loads

• High-to-Low Level Logic Conversion

• 100% Tested for Quiescent Current at 20 V

• Maximum Input Current of 1 μA at 18 V Over Full

Package Temperature Range; 100 nA at 18 V and

25°C

• 5-V, 10-V, and 15-V Parametric Ratings

2 Applications

• CMOS to DTL or TTL Hex Converters

• CMOS Current Sink or Source Drivers

• CMOS High-to-Low Logic Level Converters

3 Description

The CD4049UB and CD4050B devices are inverting

and noninverting hex buffers, and feature logic-level

conversion using only one supply voltage (VCC). The

input-signal high level (VIH) can exceed the VCC

supply voltage when these devices are used for logiclevel

conversions. These devices are intended for use

as CMOS to DTL or TTL converters and can drive

directly two DTL or TTL loads. (VCC = 5 V,

VOL ≤ 0.4 V, and IOL ≥ 3.3 mA.)