CD4040BPW Binary Counter 12-Bit Logic IC Equivalent & Substitute Parts

Part Overview

The CD4040BPW is a 12-bit binary counter logic IC manufactured by Texas Instruments in the 4000B series. This component functions as a negative edge-triggered counter with asynchronous reset capability, designed for digital counting and frequency division applications across a wide supply voltage range of 3V to 18V.

The CD4040BPW is currently discontinued at DiGi Electronics. Equivalent substitute parts are available from Texas Instruments and onsemi that maintain full functional and electrical compatibility, ensuring seamless integration into existing designs without circuit modification.

Substiute Parts

CD4040BPW

Texas InstrumentsIn Stock: 2334CD4040BPW Datasheet

Current PartRFQ

CD4040BPWR

Texas InstrumentsIn Stock: 21427CD4040BPWR Datasheet

DirectRFQ

MC14040BDTR2G

onsemiIn Stock: 8002MC14040BDTR2G Datasheet

MFR RecommendedRFQ

NLV14040BDTR2G

onsemiIn Stock: 3541NLV14040BDTR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD4040BPW is determined by strict equivalence across the following critical parameters:

• Logic Type: Binary Counter
• Bit Configuration: 12-bit single element
• Trigger Mechanism: Negative edge-triggered
• Reset Function: Asynchronous
• Package: 16-TSSOP surface mount
• Voltage Supply Range: 3V to 18V minimum
• Operating Temperature Range: -55°C to 125°C minimum
• RoHS3 Compliance and MSL Level 1 rating

All substitute parts listed maintain identical specifications across these parameters. Variations in count rate (10 MHz vs 12 MHz) remain within acceptable operational margins for standard counter applications and do not preclude substitution.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute (Recommended): CD4040BPWR (Texas Instruments)

The CD4040BPWR is the direct equivalent to the discontinued CD4040BPW, manufactured by the same supplier with identical electrical specifications and count rate performance. This part maintains active product status with substantial inventory availability (21,405 units). The packaging format differs only in supply method (Cut Tape & Digi-Reel versus Tube), with no impact on component functionality or circuit integration.

Alternative Substitutes: MC14040BDTR2G and NLV14040BDTR2G (onsemi)

Both onsemi parts provide full functional equivalence with identical package geometry, voltage range, temperature rating, and reset architecture. The count rate specification of 10 MHz remains compatible with standard counter applications. Both parts maintain active status with ROHS3 compliance and MSL Level 1 rating. Selection between these alternatives depends on supply chain availability and packaging preference (Tape & Reel format).

All substitute parts are certified ROHS3 compliant and carry MSL Level 1 moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can CD4040BPWR directly replace CD4040BPW without circuit modification?

A: Yes. The CD4040BPWR is electrically and functionally identical to the CD4040BPW. Both parts share the same 12-bit binary counter architecture, negative edge trigger mechanism, asynchronous reset, voltage supply range (3V-18V), operating temperature range (-55°C to 125°C), and 16-TSSOP package footprint. No circuit redesign is required.

Q: What is the difference between CD4040BPWR and the onsemi alternatives?

A: The primary difference is manufacturer origin. CD4040BPWR is Texas Instruments; MC14040BDTR2G and NLV14040BDTR2G are onsemi products. All three maintain identical logic function, package type, voltage range, and temperature rating. The onsemi parts specify a 10 MHz count rate versus 12 MHz for the Texas Instruments version. This difference does not affect substitution compatibility for standard counter applications.

Q: Are packaging differences between Tube and Tape & Reel significant?

A: Packaging format (Tube versus Cut Tape & Digi-Reel versus Tape & Reel) affects supply chain logistics and handling but does not impact component electrical performance or circuit functionality. Selection should be based on manufacturing process requirements and inventory management practices.

Q: Do all substitute parts meet the same compliance standards?

A: Yes. All listed substitute parts are ROHS3 compliant, carry MSL Level 1 rating, and are REACH unaffected. Compliance certifications are identical across all alternatives.

Q: Is the 10 MHz count rate of onsemi parts acceptable as a substitute for the 12 MHz specification?

A: Yes. The 10 MHz count rate of MC14040BDTR2G and NLV14040BDTR2G remains within acceptable operational parameters for binary counter applications. The lower specification does not preclude functional substitution in standard digital counting and frequency division circuits.