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Texas Instruments CD74HC4049NS — Logic ICs
Texas Instruments

CD74HC4049NS 74HC Hex Inverting Buffer, 2V-6V, 16-SOIC

MPNCD74HC4049NS
End of Life

Texas Instruments 74HC series CD74HC4049NS hex inverting buffer, 2V to 6V supply, push-pull outputs, 5.2mA high/low drive, 16-SOIC surface-mount package, -55°C to 125°C operating temperature.

$1.17Ref. price · indicative, final on quote
CD74HC4049NS datasheet
Packaging16-SOIC (0.209", 5.30mm Width)
StockContact for availability
MOQ1 pcs
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Specifications

CD74HC4049NS Technical Specifications
ParameterValue
Series74HC
Logic typeBuffer, Inverting
Output typePush-Pull
Mounting typeSurface Mount
Voltage2V ~ 6V
Current - output high, low5.2mA, 5.2mA
Operating temperature-55°C ~ 125°C
PackageTube
Case16-SOIC (0.209\", 5.30mm Width)
Number of elements6
Number of bits per element1

Product details

The CD74HC4049NS is a hex inverting buffer from the 74HC logic family, built in high-speed CMOS. Each of the six elements buffers a single bit with a push-pull output stage, so it can both source and sink current without needing an external pull-up. The supply range spans 2V to 6V, which lets it bridge 3.3V and 5V logic domains in mixed-voltage systems. Output drive is rated at 5.2mA for both high and low states, enough to drive a few CMOS inputs or a short trace without a line driver.

Package and footprint

Housed in a 16-SOIC package with a 0.209-inch (5.30 mm) body width, the CD74HC4049NS uses a standard surface-mount footprint that matches common SOIC-16 land patterns. It ships in tube form, which is typical for through-hole and SOIC parts ordered in moderate quantities.

Frequently asked questions

What is the difference between CD74HC4049 and CD74HC4049NS?

The CD74HC4049NS is the surface-mount 16-SOIC variant of the CD74HC4049 hex inverting buffer. The base CD74HC4049 typically comes in a DIP or other package; the NS suffix indicates the SOIC-16 package with a 5.30 mm body width.

Can CD74HC4049NS be used as a level shifter?

Yes, because the 74HC family accepts inputs from 2V to 6V while operating from a separate supply rail, the CD74HC4049NS can translate logic levels between 3.3V and 5V domains. The push-pull output drives rail-to-rail, so it works for unidirectional level shifting at moderate speeds.