CD4002BPW NOR Gate IC Equivalent & Substitute Parts

Part Overview

The CD4002BPW is a NOR Gate IC featuring 2 channels with 4 inputs per channel in a 14-TSSOP surface mount package. Manufactured by Texas Instruments as part of the 4000B logic series, this component operates across a wide supply voltage range of 3V to 18V, making it suitable for diverse digital logic applications. The CD4002BPW is currently in Last Time Buy status, indicating limited availability. Identifying equivalent substitute parts ensures design continuity and supply chain reliability for applications requiring NOR gate functionality with identical electrical and mechanical specifications.

Substiute Parts

CD4002BPW

Texas InstrumentsIn Stock: 1920CD4002BPW Datasheet

Current PartRFQ

CD4002BPWR

Texas InstrumentsIn Stock: 2775CD4002BPWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD4002BPW is determined by strict equivalence across all electrical and mechanical parameters. The substitute part must maintain identical logic functionality (2-channel NOR gate with 4 inputs), supply voltage range (3V ~ 18V), output current specifications (3.4mA), input logic levels, propagation delay characteristics, and operating temperature range (-55°C ~ 125°C). The physical package must be 14-TSSOP surface mount to ensure PCB compatibility. Compliance certifications including RoHS3 and MSL rating must be maintained. The only allowable variation is packaging format (Tube versus Tape & Reel), which does not affect electrical performance or board-level integration.

Parameter Comparison

Engineering Selection Recommendations

The CD4002BPWR serves as the direct electrical and mechanical equivalent to the CD4002BPW. Both parts are manufactured by Texas Instruments with identical logic specifications, electrical performance, and physical package dimensions. The primary distinction is product status: the CD4002BPW is designated Last Time Buy, while the CD4002BPWR maintains Active status, ensuring continued availability and supply chain stability. Both parts maintain ROHS3 compliance and MSL Level 1 rating. The packaging format difference (Tube versus Tape & Reel) does not affect component functionality or board-level performance. Selection between these parts should be based on supply requirements and procurement logistics rather than technical performance criteria.

Frequently Asked Questions (FAQ)

Q: Can CD4002BPWR be used as a direct replacement for CD4002BPW in existing designs?

A: Yes. Both parts are electrically and mechanically identical. The CD4002BPWR operates across the same 3V to 18V supply voltage range, maintains identical output current specifications (3.4mA), propagation delay (90ns @ 15V, 50pF), and operates across the same temperature range (-55°C ~ 125°C). The 14-TSSOP package dimensions are identical, ensuring PCB compatibility without design modification.

Q: What is the significance of the Last Time Buy status for CD4002BPW?

A: Last Time Buy status indicates that Texas Instruments will discontinue production of this part number. Existing inventory will be sold until depletion, after which the part will no longer be available. The CD4002BPWR, with Active status, represents the recommended long-term supply source for this logic function.

Q: Does the packaging format difference (Tube vs. Tape & Reel) affect component performance?

A: No. Packaging format is a logistics and handling consideration only. Tube packaging is typically used for smaller quantities or manual assembly, while Tape & Reel format is optimized for automated pick-and-place assembly. The electrical and mechanical specifications of the component itself remain unchanged.

Q: Are both parts RoHS compliant?

A: Yes. Both CD4002BPW and CD4002BPWR are ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity rating, meeting environmental and reliability standards for industrial and commercial applications.

Q: What are the key electrical parameters that define substitution compatibility?

A: Substitution compatibility is determined by: logic type (NOR Gate), circuit count (2 channels), input count (4 inputs), supply voltage range (3V ~ 18V), quiescent current (1 µA maximum), output current (3.4mA), input logic levels (Low: 1.5V ~ 4V, High: 4.6V ~ 11V), propagation delay (90ns @ 15V, 50pF), and operating temperature range (-55°C ~ 125°C). All these parameters are identical between the main part and substitute.