CD4516BPW Equivalent & Substitute Parts

Part Overview

The CD4516BPW is a 4-bit binary counter IC manufactured by Texas Instruments, part of the 4000B logic series. This device functions as a synchronous counter with asynchronous reset capability, supporting both up and down counting operations. The CD4516BPW is classified as Last Time Buy, indicating discontinued production. Identifying equivalent substitute parts is necessary to ensure continued availability for new designs, maintenance applications, and production continuity.

Substiute Parts

CD4516BPW

Texas InstrumentsIn Stock: 2297CD4516BPW Datasheet

Current PartRFQ

CD4516BPWR

Texas InstrumentsIn Stock: 18487CD4516BPWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD4516BPW is determined by strict equivalence across the following critical parameters:

• Logic function: Binary counter with 4-bit capacity
• Counting direction: Bidirectional (up and down)
• Electrical performance: 11 MHz count rate, 3 V to 18 V supply voltage range
• Temperature rating: -55°C to 125°C operating range
• Package form factor: 16-TSSOP surface mount package
• Pin configuration: Identical pinout and signal definitions
• Compliance: ROHS3 and REACH status alignment

The CD4516BPWR qualifies as a direct substitute based on identical electrical specifications, functional characteristics, and package geometry. The only distinction is packaging format: the original part uses Tube packaging, while the substitute uses Tape & Reel (TR) format. Both formats contain the same die and are functionally interchangeable at the circuit level.

Parameter Comparison

Engineering Selection Recommendations

The CD4516BPWR is the direct equivalent substitute for the CD4516BPW. Selection between these parts should be based on the following factors:

Availability and Product Status: The CD4516BPW carries Last Time Buy status, indicating limited remaining inventory and no future production. The CD4516BPWR maintains Active product status with 18,400 units in stock, providing superior long-term availability for production and design applications.

Packaging Considerations: The CD4516BPW is supplied in Tube packaging, suitable for manual assembly and small-volume applications. The CD4516BPWR is supplied in Tape & Reel format, optimized for automated pick-and-place assembly and high-volume manufacturing. Selection depends on assembly methodology and production volume requirements.

Compliance and Certification: Both parts maintain identical ROHS3 compliance and REACH Unaffected status, ensuring regulatory alignment for applications subject to environmental and hazardous substance restrictions.

Functional Equivalence: Electrical performance, pin configuration, and operational characteristics are identical. No circuit redesign or board layout modification is required when substituting the CD4516BPWR for the CD4516BPW.

Frequently Asked Questions (FAQ)

Q: Can the CD4516BPWR be used as a direct replacement for the CD4516BPW in existing designs?

A: Yes. The CD4516BPWR is functionally and electrically identical to the CD4516BPW. No circuit modifications, PCB layout changes, or firmware updates are required. The parts are pin-compatible and operate identically within the specified voltage and temperature ranges.

Q: What is the difference between Tube and Tape & Reel packaging?

A: Tube packaging contains loose components in a plastic tube, suitable for manual handling and small-quantity assembly. Tape & Reel packaging places components on a continuous carrier tape wound on a reel, designed for automated assembly equipment. Both formats contain identical components; the difference is in handling and assembly methodology.

Q: Are there any electrical performance differences between the CD4516BPW and CD4516BPWR?

A: No. Both parts share identical electrical specifications, including 11 MHz count rate, 3 V to 18 V supply voltage range, -55°C to 125°C operating temperature, and 4-bit bidirectional counting capability.

Q: Why is the CD4516BPW marked as Last Time Buy?

A: Last Time Buy status indicates that Texas Instruments has discontinued production of this part number. Existing inventory will be sold until depletion, after which the part will no longer be available. The CD4516BPWR remains in active production and is the recommended long-term source.

Q: What compliance certifications apply to both parts?

A: Both the CD4516BPW and CD4516BPWR are ROHS3 compliant and REACH Unaffected, meeting environmental and hazardous substance regulations applicable to electronic components in regulated markets.

Q: Can the CD4516BPWR be used in high-volume manufacturing?

A: Yes. The Tape & Reel packaging format of the CD4516BPWR is specifically designed for automated assembly processes, making it the preferred choice for high-volume production environments.