CD74HC4046APWR Equivalent & Substitute Parts

Part Overview

The CD74HC4046APWR is a Phase Lock Loop (PLL) integrated circuit manufactured by Texas Instruments, designed for clock and timing applications. This 16-TSSOP surface mount device operates across a supply voltage range of 2V to 6V and supports maximum input frequencies up to 38MHz. The part is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Alternative equivalent parts may be required due to inventory availability, packaging format preferences, or specific application constraints while maintaining functional compatibility.

Key Parameters

Parameter	Value
Manufacturer Part Number	CD74HC4046APWR
Manufacturer	Texas Instruments
Category	Clock/Timing
Type	Phase Lock Loop (PLL)
Package / Case	16-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
Frequency - Max	38MHz
Voltage - Supply	2V ~ 6V
Operating Temperature	-55°C ~ 125°C
Input/Output Type	CMOS
Number of Circuits	1
Ratio - Input:Output	1:4
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the CD74HC4046APWR are identified based on strict parametric equivalence within the 74HC4046 base product family. The substitution logic is determined by the following critical parameters:

Primary Equivalence Criteria:

Base Product Number: 74HC4046
Package / Case: 16-TSSOP (0.173", 4.40mm Width)
Mounting Type: Surface Mount
Type: Phase Lock Loop (PLL)
Number of Circuits: 1
RoHS Status: ROHS3 Compliant

Packaging Format Variations: Substitutes may differ in packaging format (Cut Tape vs. Tape & Reel) without affecting functional compatibility. These variations address supply chain and procurement preferences.

Secondary Parameter Variations: Certain substitute parts may exhibit differences in frequency specifications, input/output signal types, voltage supply ranges, or operating temperature ranges. These variations must be evaluated against specific application requirements to determine suitability.

Parameter Comparison

Parameter	CD74HC4046APWR (Main)	CD74HC4046APWT (Substitute)	74HC4046APW,118 (Substitute)
Manufacturer	Texas Instruments	Texas Instruments	Nexperia USA Inc.
Packaging	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)	Tape & Reel (TR)
Package / Case	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Type	Phase Lock Loop (PLL)	Phase Lock Loop (PLL)	Phase Lock Loop (PLL)
Number of Circuits	1	1	1
Frequency - Max	38MHz	38MHz	21MHz
Input Type	CMOS	CMOS	Clock
Output Type	CMOS	CMOS	Clock
Ratio - Input:Output	1:4	1:4	2:3
Voltage - Supply	2V ~ 6V	2V ~ 6V	3V ~ 6V
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-40°C ~ 125°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active

Engineering Selection Recommendations

CD74HC4046APWT (Texas Instruments): This part is a parametric equivalent to the CD74HC4046APWR with identical electrical specifications and operating characteristics. The primary difference is packaging format (Tape & Reel versus Cut Tape & Digi-Reel). Selection of this substitute is appropriate when Tape & Reel packaging format is preferred for automated assembly processes. Both parts maintain Active product status and ROHS3 compliance.

74HC4046APW,118 (Nexperia USA Inc.): This part shares the same 16-TSSOP package and base product family (74HC4046) but exhibits parametric differences in frequency specification (21MHz maximum versus 38MHz), input/output signal types (Clock versus CMOS), input:output ratio (2:3 versus 1:4), minimum supply voltage (3V versus 2V), and minimum operating temperature (-40°C versus -55°C). Selection of this substitute requires confirmation that application frequency requirements do not exceed 21MHz, supply voltage remains above 3V, and operating temperature range requirements are satisfied within -40°C to 125°C. This part maintains Active product status and ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can CD74HC4046APWT be used as a direct replacement for CD74HC4046APWR?

A: Yes. Both parts are manufactured by Texas Instruments and share identical electrical specifications, operating parameters, and functional characteristics. The difference is packaging format: CD74HC4046APWT uses Tape & Reel packaging while CD74HC4046APWR uses Cut Tape & Digi-Reel packaging. Both are suitable for surface mount assembly in 16-TSSOP packages.

Q: What are the key differences between CD74HC4046APWR and 74HC4046APW,118?

A: The 74HC4046APW,118 (Nexperia) differs in maximum frequency (21MHz versus 38MHz), input/output signal types (Clock versus CMOS), input:output ratio (2:3 versus 1:4), minimum supply voltage (3V versus 2V), and minimum operating temperature (-40°C versus -55°C). These differences must be evaluated against specific application requirements before substitution.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All parts listed—CD74HC4046APWR, CD74HC4046APWT, and 74HC4046APW,118—maintain ROHS3 compliance and are classified as Active products.

Q: Does packaging format affect electrical performance?

A: No. Packaging format differences (Cut Tape & Digi-Reel versus Tape & Reel) do not affect electrical performance or functional characteristics. Format selection is based on procurement and assembly process requirements.

Q: What is the moisture sensitivity level for these parts?

A: All listed parts have Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life without moisture control requirements.

Q: Can 74HC4046APW,118 operate at 2V supply voltage?

A: No. The 74HC4046APW,118 requires minimum supply voltage of 3V, whereas the CD74HC4046APWR operates from 2V minimum. Applications requiring 2V operation must use CD74HC4046APWR or CD74HC4046APWT.

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