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Texas Instruments CD74HC4046AM — Clock & Timing ICs

Texas Instruments CD74HC4046AM PLL IC, 38 MHz, 16-SOIC

MPNCD74HC4046AM
End of Life

Texas Instruments 74HC series Phase Lock Loop (PLL) IC, CD74HC4046AM, 38 MHz max frequency, 2V to 6V supply, 1 circuit, 1:4 input:output ratio, 16-SOIC package, tube.

$1.48Ref. price · indicative, final on quote
Packaging16-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Series74HC
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

CD74HC4046AM specifications
ParameterValue
TypePhase Lock Loop (PLL)
Series74HC
MountingSurface Mount
Voltage2V ~ 6V
Frequency38MHz
Operating temperature-55°C ~ 125°C
PLLYes
InputCMOS
OutputCMOS
PackageTube
Case16-SOIC (0.154\", 3.90mm Width)
Divider (Multiplier)No/No
Number of circuits1
Ratio - Input:Output1:4
Differential - Input:OutputNo/No

Product details

PLL with integrated VCO in a 16-SOIC footprint

The CD74HC4046AM is a single-circuit Phase Lock Loop (PLL) with an on-chip voltage-controlled oscillator (VCO), implemented in Texas Instruments' 74HC CMOS logic family. Its 38 MHz maximum frequency sets the upper bound for the VCO lock range — useful for clock recovery, frequency synthesis, and motor speed control loops that need to track up to that rate.

Temperature grade and environment

Rated for -55°C to 125°C operating temperature, this part covers the full military temperature band — suitable for avionics, downhole instrumentation, or outdoor base stations where the ambient range exceeds industrial grades.

ROHS3 compliant per the manufacturer's declaration, with no exemptions that would complicate EU or California market entry.

Frequently asked questions

What is the input-to-output ratio of the CD74HC4046AM?

The CD74HC4046AM has a 1:4 input-to-output ratio, meaning one input signal can be distributed to four output paths within the PLL structure.