Equivalent & Substitute Parts for CD4024BME4

Part Overview

The CD4024BME4 is a 7-bit binary counter IC manufactured by Texas Instruments, part of the 4000B logic series. This surface-mount device operates as a negative-edge-triggered counter with asynchronous reset capability. The CD4024BME4 is currently discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing production and maintenance applications. Substitute parts must maintain identical functional specifications, package compatibility, and electrical performance to ensure direct replacement without circuit redesign.

Key Parameters

Parameter	Value
Logic Type	Binary Counter
Number of Bits per Element	7 Bit
Direction	Up
Trigger Type	Negative Edge
Reset	Asynchronous
Count Rate	24 MHz (CD4024BME4); 12 MHz (onsemi variants)
Voltage - Supply	3 V ~ 18 V
Operating Temperature	-55°C ~ 125°C
Package / Case	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the CD4024BME4 is determined by the following criteria:

Mandatory Matching Parameters:

Logic Type: Binary Counter
Number of Bits per Element: 7 Bit
Direction: Up
Trigger Type: Negative Edge
Reset: Asynchronous
Voltage - Supply: 3 V ~ 18 V
Operating Temperature: -55°C ~ 125°C
Package / Case: 14-SOIC (0.154", 3.90mm Width)
Mounting Type: Surface Mount

Allowable Variation:

Count Rate: The CD4024BME4 specifies 24 MHz maximum. Substitute parts with 12 MHz count rate (onsemi MC14024 and NLV14024 series) are functionally compatible in applications not requiring the higher frequency specification.

Product Status Consideration:

Active status substitutes are preferred for new designs and ongoing procurement.
Obsolete status parts (CD4024BM by Harris Corporation) are available for legacy system maintenance only.

Parameter Comparison

Part Number	Manufacturer	Product Status	Count Rate	Package	Packaging Type	Inventory
CD4024BME4	Texas Instruments	Discontinued	24 MHz	14-SOIC	-	709 Pcs
CD4024BM96	Texas Instruments	Active	24 MHz	14-SOIC	Cut Tape (CT) & Digi-Reel®	22055 Pcs
CD4024BM	Harris Corporation	Obsolete	24 MHz	14-SOIC	-	2200 Pcs
MC14024BDR2G	onsemi	Active	12 MHz	14-SOIC	Tape & Reel (TR)	2000 Pcs
MC14024BDG	onsemi	Active	12 MHz	14-SOIC	Tube	2260 Pcs
NLV14024BDR2G	onsemi	Active	12 MHz	14-SOIC	Tape & Reel (TR)	1606 Pcs

Engineering Selection Recommendations

Primary Substitute (Recommended for New Designs): CD4024BM96 (Texas Instruments) is the preferred substitute. It maintains identical electrical specifications including 24 MHz count rate, is currently active in production, and is available in high volume (22055 Pcs). This part ensures no performance degradation and maintains the original design intent.

Alternative Substitutes (Active Status): MC14024BDR2G, MC14024BDG, and NLV14024BDR2G (all onsemi) are functionally compatible alternatives. These parts operate at 12 MHz maximum count rate, which is acceptable for applications not requiring the full 24 MHz specification. All three are currently active products with established supply chains. Selection among these three should be based on packaging requirements: MC14024BDR2G and NLV14024BDR2G are supplied in Tape & Reel format for automated assembly, while MC14024BDG is supplied in Tube format for manual handling.

Legacy Maintenance Only: CD4024BM (Harris Corporation) is obsolete and should be used only for repair of existing systems where the original part number must be maintained. This part is not recommended for new designs or ongoing production.

Compliance Verification: All substitute parts maintain ROHS3 compliance, MSL Level 1 (Unlimited), and REACH Unaffected status, ensuring regulatory compatibility with the original CD4024BME4.

Frequently Asked Questions (FAQ)

Q: Can MC14024BDR2G replace CD4024BME4 directly in my circuit? A: Yes, MC14024BDR2G is a direct functional replacement. Both parts share identical logic specifications, voltage range, temperature range, and 14-SOIC package. The 12 MHz count rate of the MC14024BDR2G is lower than the CD4024BME4's 24 MHz specification, but this substitution is valid for applications operating below 12 MHz. If your circuit requires operation above 12 MHz, use CD4024BM96 instead.

Q: What is the difference between MC14024BDR2G and MC14024BDG? A: Both parts are electrically identical. The difference is packaging: MC14024BDR2G is supplied in Tape & Reel (TR) format for high-volume automated assembly, while MC14024BDG is supplied in Tube format for lower-volume or manual assembly operations. Select based on your manufacturing process requirements.

Q: Why is CD4024BM96 preferred over the onsemi alternatives? A: CD4024BM96 maintains the original 24 MHz count rate specification of the CD4024BME4, ensuring no performance compromise. It is manufactured by Texas Instruments, the original manufacturer of the CD4024BME4, and is currently in active production with high inventory availability. Use CD4024BM96 when maximum frequency performance is required.

Q: Is the CD4024BM (Harris Corporation) still usable? A: CD4024BM is obsolete and should be used only for repair of legacy systems. It is not recommended for new designs or ongoing production due to discontinued status and limited future availability.

Q: Are all substitute parts RoHS compliant? A: Yes, all substitute parts listed (CD4024BM96, CD4024BM, MC14024BDR2G, MC14024BDG, NLV14024BDR2G) are ROHS3 compliant and meet current environmental regulations.

Q: Can I use NLV14024BDR2G instead of MC14024BDR2G? A: Yes, both parts are functionally equivalent. NLV14024BDR2G and MC14024BDR2G share identical electrical specifications and 14-SOIC packaging. Selection can be based on availability, pricing, or supplier preference. Both are active products supplied in Tape & Reel format.

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