SN74HC4020DBR Binary Counter IC Equivalent & Substitute Parts

Part Overview

The SN74HC4020DBR is a 14-bit binary counter IC manufactured by Texas Instruments, housed in a 16-SSOP surface mount package. This device functions as a single-element counter with asynchronous reset and negative edge triggering, operating across a 2V to 6V supply voltage range with a maximum count rate of 33 MHz. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

SN74HC4020DBR

Texas InstrumentsIn Stock: 887SN74HC4020DBR Datasheet

Current PartRFQ

SN74HC4060DBR

Texas InstrumentsIn Stock: 5332SN74HC4060DBR Datasheet

Parametric EquivalentRFQ

74HC4020PW,118

NXP SemiconductorsIn Stock: 1341074HC4020PW,118 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN74HC4020DBR is determined by strict equivalence across the following critical parameters:

• Logic Type: Binary Counter
• Number of Bits per Element: 14 Bit
• Direction: Up
• Trigger Type: Negative Edge
• Reset: Asynchronous
• Count Rate: 33 MHz
• Voltage - Supply: 2 V ~ 6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 16-SSOP (0.209", 5.30mm Width)
• RoHS Status: ROHS3 Compliant

Two substitute parts meet these criteria and are grouped as follows:

Parametric Equivalent: SN74HC4060DBR (Texas Instruments) — Active product status with identical electrical and mechanical specifications, differing only in packaging format (Tape & Reel).

Manufacturer Recommended Equivalent: 74HC4020PW,118 (NXP Semiconductors) — Active product status with matching core functionality and compliance certifications, representing the primary cross-manufacturer alternative.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are classified as active products, providing superior long-term availability compared to the obsolete SN74HC4020DBR. Selection between the two substitutes depends on supply chain and procurement factors:

SN74HC4060DBR maintains continuity with Texas Instruments as the original manufacturer, ensuring consistency with existing design documentation and qualification records. This part is available in Tape & Reel packaging, suitable for high-volume production environments.

74HC4020PW,118 from NXP Semiconductors represents a cross-manufacturer alternative with equivalent electrical performance and identical package specifications. This option expands supplier diversity and may offer improved availability or cost positioning depending on regional supply conditions.

Both alternatives satisfy ROHS3 compliance and REACH requirements, meeting modern regulatory standards for electronic component procurement.

Frequently Asked Questions (FAQ)

Q: Can SN74HC4060DBR be used as a direct replacement for SN74HC4020DBR?

A: Yes. Both parts are 14-bit binary counters with identical electrical specifications, operating voltage ranges, temperature ratings, and package dimensions. The primary difference is packaging format: SN74HC4060DBR is supplied in Tape & Reel format, while SN74HC4020DBR uses standard packaging. Pin configuration and functional behavior are equivalent.

Q: Is the NXP 74HC4020PW,118 pin-compatible with the Texas Instruments original?

A: Yes. The 74HC4020PW,118 maintains the same 16-SSOP package footprint and pin assignment as the SN74HC4020DBR, enabling direct PCB-level substitution without layout modifications.

Q: What is the significance of the obsolete product status for SN74HC4020DBR?

A: Obsolete status indicates the manufacturer has discontinued production and support. Using an active substitute part ensures access to current inventory, technical documentation, and manufacturing consistency for future production runs.

Q: Are there any compliance or certification differences between the three parts?

A: No. All three parts carry identical ROHS3 compliance and REACH unaffected status, with Moisture Sensitivity Level 1 (unlimited shelf life). They meet the same regulatory requirements for industrial and commercial applications.

Q: What packaging considerations apply when selecting between these substitutes?

A: SN74HC4060DBR is supplied in Tape & Reel format, optimized for automated assembly and high-volume production. The 74HC4020PW,118 is supplied in bulk packaging. Selection depends on production volume and assembly equipment compatibility. Both maintain the same 16-SSOP surface mount package dimensions.