CD74HC4024PW Equivalent & Substitute Parts

Part Overview

The CD74HC4024PW is a 7-bit binary counter IC manufactured by Texas Instruments, designed for digital logic applications requiring asynchronous counting functionality. This device operates as a negative edge-triggered counter with a maximum count rate of 35 MHz and supports supply voltages from 2 V to 6 V. The part is currently discontinued at DiGi Electronics, making identification of equivalent substitute parts essential for ongoing design support and procurement.

Substiute Parts

CD74HC4024PW

Texas InstrumentsIn Stock: 3071CD74HC4024PW Datasheet

Current PartRFQ

CD74HC4024PWR

Texas InstrumentsIn Stock: 18181CD74HC4024PWR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD74HC4024PW is determined by strict equivalence across the following critical parameters:

• Logic Type: Binary Counter (identical functional classification)
• Number of Bits per Element: 7 Bit (exact bit-width match required)
• Trigger Type: Negative Edge (timing characteristic must match)
• Voltage - Supply: 2 V ~ 6 V (operating range must be identical or broader)
• Count Rate: 35 MHz (minimum performance specification)
• Package / Case: 14-TSSOP (physical and electrical footprint compatibility)
• Mounting Type: Surface Mount (assembly process compatibility)
• Operating Temperature: -55°C ~ 125°C (thermal operating range)

The CD74HC4024PWR qualifies as a direct substitute based on identical specifications across all critical parameters. The primary distinction is packaging format and product status, not functional or electrical characteristics.

Parameter Comparison

Engineering Selection Recommendations

The CD74HC4024PWR is the direct functional equivalent of the CD74HC4024PW. Both parts share identical electrical specifications, thermal characteristics, and physical packaging dimensions. The CD74HC4024PWR maintains active product status with Texas Instruments and is available in higher inventory quantities, making it the preferred selection for new procurement and design continuity.

Both parts meet ROHS3 compliance and carry identical moisture sensitivity ratings. The substitution involves no electrical or thermal trade-offs. The primary consideration is packaging format: the CD74HC4024PWR is supplied in Cut Tape and Digi-Reel formats, whereas the original part was supplied in Tube format. This distinction affects only procurement and assembly logistics, not component performance or compatibility.

Frequently Asked Questions (FAQ)

Q: Can the CD74HC4024PWR be used as a direct replacement for the CD74HC4024PW?

A: Yes. Both parts are electrically and functionally identical. They share the same 7-bit binary counter architecture, negative edge trigger characteristic, 35 MHz count rate, and 14-TSSOP package footprint. No circuit modifications are required.

Q: What is the difference between the CD74HC4024PW and CD74HC4024PWR?

A: The parts are functionally equivalent. The CD74HC4024PW was supplied in Tube packaging and is now discontinued at DiGi Electronics. The CD74HC4024PWR is the active equivalent, supplied in Cut Tape and Digi-Reel formats with higher inventory availability.

Q: Are there any thermal or voltage differences between these parts?

A: No. Both parts operate across the identical supply voltage range of 2 V to 6 V and the same temperature range of -55°C to 125°C. Thermal and electrical performance characteristics are equivalent.

Q: Does the packaging format change affect PCB assembly?

A: The packaging format (Tube versus Cut Tape/Digi-Reel) affects only procurement and assembly line handling. The physical component dimensions and electrical footprint remain identical. PCB layout and assembly processes require no modification.

Q: Are both parts RoHS compliant?

A: Yes. Both the CD74HC4024PW and CD74HC4024PWR are ROHS3 compliant with MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.