CD40193BPW Equivalent & Substitute Parts

Part Overview

The CD40193BPW is a 4-bit binary counter IC manufactured by Texas Instruments, part of the 4000B logic series. This component functions as a synchronous counter with asynchronous reset capability, supporting both up and down counting operations. The device operates across a wide supply voltage range of 3 V to 18 V and maintains a maximum count rate of 5.5 MHz, making it suitable for digital counting and frequency division applications in industrial and consumer electronics.

The CD40193BPW is designated as Last Time Buy, indicating discontinued production. Identifying equivalent substitute parts is essential for design continuity, procurement planning, and long-term product support.

Substiute Parts

CD40193BPW

Texas InstrumentsIn Stock: 2757CD40193BPW Datasheet

Current PartRFQ

CD40193BPWR

Texas InstrumentsIn Stock: 3271CD40193BPWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD40193BPW is determined by strict equivalence across the following critical parameters:

• Logic function: 4-bit binary counter with up/down capability
• Electrical specifications: 3 V to 18 V supply voltage range, 5.5 MHz count rate
• Trigger characteristics: Positive edge triggering with asynchronous reset
• Package specification: 16-TSSOP surface mount form factor
• Compliance certifications: ROHS3 compliance, REACH unaffected status

Only components matching all these parameters across the same base product number (CD40193) qualify as direct substitutes. Packaging format differences (Tube versus Tape & Reel) do not affect functional equivalence but may impact procurement and handling procedures.

Parameter Comparison

Engineering Selection Recommendations

The CD40193BPWR serves as the direct functional equivalent to the CD40193BPW. Both components are manufactured by Texas Instruments and share identical electrical, timing, and package specifications. The primary distinction is product status: the CD40193BPW is Last Time Buy, while the CD40193BPWR maintains Active status with confirmed inventory availability.

From a compliance perspective, both parts meet ROHS3 requirements and carry REACH unaffected designation, ensuring regulatory alignment for current and future applications. The CD40193BPWR's Active status provides extended procurement availability and supply chain stability.

The packaging format difference—Tube for the main part versus Tape & Reel for the substitute—reflects standard distribution methods and does not affect component performance or pin configuration. Selection between these formats depends on assembly process requirements and procurement volume.

Frequently Asked Questions (FAQ)

Q: Are CD40193BPW and CD40193BPWR pin-for-pin compatible?

A: Yes. Both components use the 16-TSSOP package with identical pin assignments. No circuit board modifications are required for substitution.

Q: What is the significance of the packaging format difference (Tube vs. Tape & Reel)?

A: Tube packaging is typically used for lower-volume orders and manual handling, while Tape & Reel format is standard for automated assembly processes. The functional performance of the component is identical regardless of packaging format.

Q: Can I substitute CD40193BPWR for CD40193BPW in existing designs?

A: Yes. The CD40193BPWR is electrically and mechanically equivalent. All electrical parameters, operating ranges, and performance characteristics are identical.

Q: Why is the CD40193BPW marked as Last Time Buy?

A: Last Time Buy status indicates that Texas Instruments has discontinued production of this specific part number variant. The CD40193BPWR remains in active production and serves as the recommended alternative for new designs and replenishment orders.

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

A: No. Both parts carry identical ROHS3 compliance and REACH unaffected status. Regulatory requirements are met equally by either component.

Q: What is the moisture sensitivity level, and does it affect handling?

A: Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard handling procedures for surface mount components apply.