CD40102BPW Equivalent & Substitute Parts

Part Overview

The CD40102BPW is a BCD Counter Logic IC manufactured by Texas Instruments, designed as a 2-element, 4-bit counter with positive edge triggering and asynchronous reset. This component operates across a wide supply voltage range of 3V to 18V and supports a maximum count rate of 2.4 MHz, making it suitable for digital counting and frequency division applications in industrial and consumer electronics.

The CD40102BPW is currently in Last Time Buy status, indicating that Texas Instruments has discontinued or is phasing out this specific packaging configuration. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term production requirements for systems utilizing this component.

Substiute Parts

CD40102BPW

Texas InstrumentsIn Stock: 1096CD40102BPW Datasheet

Current PartRFQ

CD40102BPWR

Texas InstrumentsIn Stock: 1157CD40102BPWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD40102BPW is determined by strict equivalence across all functional and electrical parameters. The substitute part must maintain identical specifications for logic type, counter configuration (2 elements, 4 bits per element), count direction, reset mechanism, timing characteristics, maximum count rate, trigger type, and supply voltage range. Package compatibility is critical: both the main part and substitute must use the 16-TSSOP surface mount package with identical physical dimensions to ensure PCB layout compatibility without redesign.

The key parameters governing substitution are:

• Logic Type: BCD Counter (2 Element, 4 Bit)
• Count Rate: 2.4 MHz maximum
• Voltage Supply: 3V to 18V
• Package: 16-TSSOP surface mount
• Environmental Compliance: ROHS3, MSL 1

The primary difference between the CD40102BPW and its substitute is the packaging configuration: the main part is supplied in Tube packaging (Last Time Buy status), while the substitute is supplied in Tape & Reel (TR) packaging (Active status).

Parameter Comparison

Engineering Selection Recommendations

The CD40102BPWR is the direct functional equivalent of the CD40102BPW. Both parts share identical electrical specifications, functional characteristics, and physical package dimensions. The sole distinction is the supply packaging format: Tube versus Tape & Reel.

Selection of the CD40102BPWR is supported by the following factors:

The CD40102BPWR maintains Active product status with Texas Instruments, ensuring continued availability and long-term supply chain stability. The CD40102BPW, designated as Last Time Buy, indicates limited remaining inventory and no future production.

Both parts maintain full ROHS3 compliance and REACH unaffected status, satisfying environmental and regulatory requirements without modification to existing designs or procurement processes.

The Tape & Reel packaging of the CD40102BPWR is standard for high-volume surface mount assembly operations and is compatible with automated pick-and-place equipment used in modern PCB manufacturing. Tube packaging, while suitable for manual assembly or low-volume applications, is less common in contemporary production environments.

For new designs or production continuity, the CD40102BPWR is the appropriate selection. For existing inventory management or legacy system support, the CD40102BPW may be used until Last Time Buy allocation is exhausted.

Frequently Asked Questions (FAQ)

Q: Are the CD40102BPW and CD40102BPWR electrically identical?

A: Yes. Both parts are manufactured by Texas Instruments using the same base product number (CD40102) and share identical electrical specifications, including logic type, counter configuration, count rate, voltage supply range, operating temperature range, and trigger characteristics. They are functionally interchangeable at the circuit level.

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

A: Tube packaging supplies components in plastic tubes, typically used for manual assembly or low-volume applications. Tape & Reel packaging supplies components on continuous carrier tape wound on reels, designed for automated surface mount assembly equipment. Both packaging formats contain the same component; the difference is in handling and assembly methodology.

Q: Can I use CD40102BPWR in place of CD40102BPW on an existing PCB?

A: Yes. Both parts use the 16-TSSOP surface mount package with identical physical dimensions (0.173" width, 4.40mm). No PCB layout modifications are required. The components are pin-compatible and functionally equivalent.

Q: Why is the CD40102BPW designated as Last Time Buy?

A: Last Time Buy status indicates that Texas Instruments has discontinued this specific packaging configuration and will not produce additional units beyond the current allocation. This is a standard lifecycle management practice. The CD40102BPWR, supplied in Tape & Reel format, remains in Active production status.

Q: Are there any compliance or certification differences between these parts?

A: No. Both the CD40102BPW and CD40102BPWR maintain identical RoHS3 compliance, REACH unaffected status, and Moisture Sensitivity Level 1 (Unlimited). No additional certifications or compliance modifications are required when transitioning between these parts.

Q: Which part should I specify for new production orders?

A: Specify the CD40102BPWR for new designs and ongoing production. This part maintains Active status, ensuring supply availability and supporting long-term manufacturing continuity. The CD40102BPW should be reserved for legacy system support or existing inventory utilization only.