CD4043BPWG4 Equivalent & Substitute Parts

Part Overview

The CD4043BPWG4 is a quad S-R latch with tri-state output logic integrated circuit manufactured by Texas Instruments in the 4000B series. This device provides four independent 1:1 S-R latch circuits with tri-state output capability, operating across a wide supply voltage range of 3V to 18V. The part is classified as obsolete, which necessitates identification of active equivalent alternatives for new designs and ongoing production requirements. The CD4043BPWR serves as the direct active substitute, maintaining identical electrical and mechanical specifications while offering improved availability.

Substiute Parts

CD4043BPWG4

Texas InstrumentsIn Stock: 998CD4043BPWG4 Datasheet

Current PartRFQ

CD4043BPWR

Texas InstrumentsIn Stock: 5145CD4043BPWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD4043BPWG4 is determined by strict equivalence across the following critical parameters:

• Logic Type: S-R Latch configuration
• Independent Circuits: 4 channels
• Output Type: Tri-State capability
• Voltage - Supply: 3V ~ 18V operating range
• Delay Time - Propagation: 50ns
• Current - Output High, Low: 6.8mA, 6.8mA
• Operating Temperature: -55°C ~ 125°C
• Package / Case: 16-TSSOP form factor
• Mounting Type: Surface Mount
• Base Product Number: CD4043

The CD4043BPWR is classified as a manufacturer-recommended substitute because it maintains identical electrical characteristics, mechanical specifications, and package configuration while offering active product status and superior inventory availability.

Parameter Comparison

Engineering Selection Recommendations

The CD4043BPWR is the appropriate selection for applications currently specified with the CD4043BPWG4. Both parts maintain identical electrical performance, timing characteristics, and mechanical compatibility. The primary distinction is product status: the CD4043BPWG4 is obsolete, while the CD4043BPWR maintains active status with Texas Instruments. Both parts satisfy ROHS3 compliance and REACH unaffected requirements, ensuring regulatory alignment for current manufacturing standards. The CD4043BPWR offers superior supply chain continuity and is recommended for all new designs and production continuations.

Frequently Asked Questions (FAQ)

Q: Can the CD4043BPWR be used as a direct replacement for the CD4043BPWG4?

A: Yes. Both parts are electrically and mechanically identical. They share the same logic type, circuit configuration, output characteristics, timing specifications, and 16-TSSOP package footprint. The primary difference is product status and packaging format availability.

Q: What is the significance of the product status difference?

A: The CD4043BPWG4 is classified as obsolete, indicating Texas Instruments no longer manufactures this variant. The CD4043BPWR maintains active status, ensuring continued availability and manufacturing support. For new designs and ongoing production, the active part is the appropriate choice.

Q: Are there any differences in compliance or certifications?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity levels (MSL 1 - Unlimited). Regulatory and environmental compliance requirements are equivalent.

Q: What packaging formats are available for the CD4043BPWR?

A: The CD4043BPWR is supplied in Cut Tape (CT) and Digi-Reel® packaging formats, providing flexibility for both manual assembly and automated production environments.

Q: Are the electrical characteristics identical between these parts?

A: Yes. Supply voltage range (3V ~ 18V), propagation delay (50ns), output current specifications (6.8mA high and low), and operating temperature range (-55°C ~ 125°C) are identical across both parts.