CD4543BNSR Equivalent & Substitute Parts

Part Overview

The CD4543BNSR is an active LCD driver IC manufactured by Texas Instruments, designed for 7-segment single-digit display applications. This component operates across a wide supply voltage range of 3V to 18V and features BCD interface compatibility. The part is currently in active production status with RoHS3 compliance and unlimited moisture sensitivity rating, making it suitable for industrial and commercial applications requiring reliable display driving functionality.

Substitute parts are identified when equivalent functional performance can be achieved through alternative manufacturers while maintaining compatibility with the intended application parameters.

Substiute Parts

CD4543BNSR

Texas InstrumentsIn Stock: 3056CD4543BNSR Datasheet

Current PartRFQ

ICM7211AMIPLZ

Renesas Electronics CorporationIn Stock: 2235ICM7211AMIPLZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD4543BNSR is determined by the following critical parameters:

• Display Type: LCD driver functionality
• Configuration: 7-segment display support
• Interface Protocol: BCD input compatibility
• Supply Voltage Range: Minimum 3V operation capability
• Product Status: Active manufacturing status
• Compliance Standards: RoHS3 compliance and REACH unaffected status

The identified substitute part ICM7211AMIPLZ shares the core functional characteristics of LCD 7-segment display driving with BCD interface support. However, this substitute exhibits differences in digit capacity, mounting technology, and operating specifications that must be evaluated for application compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the CD4543BNSR and ICM7211AMIPLZ maintain active product status with equivalent RoHS3 compliance and REACH unaffected certification. Selection between these components must account for the following documented differences:

The CD4543BNSR operates across a broader supply voltage range (3V to 18V) compared to the ICM7211AMIPLZ (3V to 6V), making the Texas Instruments component suitable for applications requiring extended voltage tolerance. The CD4543BNSR also supports a wider operating temperature range (-55°C to 125°C versus -20°C to 85°C), qualifying it for industrial temperature environments.

The ICM7211AMIPLZ provides multi-digit display capability (4 digits) within a single package, whereas the CD4543BNSR is configured for single-digit applications. The Renesas component utilizes through-hole mounting technology in a 40-DIP package, contrasting with the surface-mount 16-SOIC packaging of the Texas Instruments part.

Current consumption differs significantly, with the CD4543BNSR drawing 40 nanoamperes compared to 10 microamperes for the ICM7211AMIPLZ, representing a material difference in low-power application suitability.

Frequently Asked Questions (FAQ)

Q: Can the ICM7211AMIPLZ directly replace the CD4543BNSR in existing designs?

A: Direct replacement is not recommended without design modification. The ICM7211AMIPLZ operates at a maximum supply voltage of 6V, whereas the CD4543BNSR supports up to 18V. Additionally, the through-hole 40-DIP package of the Renesas component differs fundamentally from the surface-mount 16-SOIC package of the Texas Instruments part, requiring PCB layout changes.

Q: What are the key compatibility considerations for substitution?

A: Both components share BCD interface protocol and 7-segment LCD display functionality. However, substitution feasibility depends on: (1) application supply voltage requirements, (2) PCB mounting technology constraints, (3) digit quantity requirements, and (4) operating temperature specifications.

Q: Which component is more suitable for low-power applications?

A: The CD4543BNSR demonstrates superior low-power performance with 40 nanoamperes supply current compared to 10 microamperes for the ICM7211AMIPLZ, making it the appropriate choice for battery-powered or ultra-low-power designs.

Q: Are both components suitable for industrial temperature environments?

A: The CD4543BNSR supports the extended industrial temperature range of -55°C to 125°C. The ICM7211AMIPLZ operates within -20°C to 85°C, limiting its use to commercial temperature specifications.

Q: Do both components meet current compliance requirements?

A: Both the CD4543BNSR and ICM7211AMIPLZ are RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic component manufacturing and distribution.