CD4033BNSR Equivalent & Substitute Parts

Part Overview

The CD4033BNSR is a decade counter IC from Texas Instruments' 4000B logic series, designed for counting applications requiring a 5-bit positive edge-triggered counter with asynchronous reset. This component operates across a wide supply voltage range of 3V to 18V and supports count rates up to 16 MHz, making it suitable for diverse digital logic applications.

The CD4033BNSR is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this counter IC.

Substiute Parts

CD4033BNSR

Texas InstrumentsIn Stock: 1067CD4033BNSR Datasheet

Current PartRFQ

CD4026BNSR

Texas InstrumentsIn Stock: 2132CD4026BNSR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD4033BNSR is determined by strict equivalence across the following critical parameters:

• Logic Type: Counter, Decade (1 element, 5-bit configuration)
• Trigger Characteristics: Positive edge-triggered operation
• Reset Mechanism: Asynchronous reset capability
• Timing Architecture: Synchronous operation
• Count Rate: 16 MHz minimum performance
• Supply Voltage Range: 3V to 18V compatibility
• Package Configuration: 16-SOIC surface mount form factor
• Operating Temperature Range: -55°C to 125°C

The CD4026BNSR meets all these parameters and qualifies as a parametric equivalent substitute for the CD4033BNSR.

Parameter Comparison

Engineering Selection Recommendations

The CD4026BNSR is the qualified substitute for the CD4033BNSR based on complete parametric equivalence. Both components share identical electrical specifications, timing characteristics, and package configurations. The CD4026BNSR holds active product status from Texas Instruments, ensuring ongoing availability and supply chain support, whereas the CD4033BNSR is obsolete. Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for new designs and production continuity.

Frequently Asked Questions (FAQ)

Q: Can the CD4026BNSR directly replace the CD4033BNSR in existing designs?

A: Yes. The CD4026BNSR is a parametric equivalent with identical electrical specifications, timing characteristics, count rate, supply voltage range, operating temperature range, and 16-SOIC package configuration. No circuit modifications are required for direct substitution.

Q: What is the primary advantage of using CD4026BNSR over CD4033BNSR?

A: The CD4026BNSR maintains active product status with Texas Instruments, ensuring reliable long-term availability and supply chain continuity. The CD4033BNSR is obsolete and subject to inventory depletion.

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

A: No. Both the CD4033BNSR and CD4026BNSR are ROHS3 compliant and REACH unaffected, meeting identical regulatory standards.

Q: Does the package form factor remain the same?

A: Yes. Both parts use the 16-SOIC (0.209", 5.30mm Width) surface mount package, ensuring compatibility with existing PCB layouts and assembly processes.

Q: Are the supply voltage and operating temperature ranges identical?

A: Yes. Both parts operate across 3V to 18V supply voltage and -55°C to 125°C operating temperature range, providing identical environmental performance specifications.