TC7126ARCPL Equivalent & Substitute Parts

Part Overview

The TC7126ARCPL is a 40-pin DIP display driver IC manufactured by Microchip Technology, designed for 7-segment 4.6-digit display applications. This component is classified as obsolete, making equivalent and substitute parts necessary for new designs and production continuity. The part operates on a 9V supply and is rated for 0°C to 70°C operating temperature range. Given its obsolete status, identifying compatible alternatives ensures design flexibility and supply chain reliability.

Substiute Parts

TC7126ARCPL

Microchip TechnologyIn Stock: 985TC7126ARCPL Datasheet

Current PartRFQ

AD8387JSVZ

Analog Devices Inc.In Stock: 1437AD8387JSVZ Datasheet

MFR RecommendedRFQ

ICL7126CPL+

Analog Devices Inc./Maxim IntegratedIn Stock: 1148ICL7126CPL+ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the TC7126ARCPL is determined by the following critical parameters:

Primary Substitution Criteria:

• Display driver functionality for 4.6-digit or equivalent display applications
• Package compatibility: 40-DIP through-hole mounting
• Supply voltage: 9V single supply operation
• Operating temperature range: 0°C to 70°C minimum
• RoHS3 compliance and regulatory alignment

Substitute Parts Identified:

1. ICL7126CPL+ (Analog Devices Inc./Maxim Integrated) — Direct functional equivalent with identical electrical specifications and package format
2. AD8387JSVZ (Analog Devices Inc.) — Alternative display driver with different package and supply voltage specifications

Parameter Comparison

Engineering Selection Recommendations

ICL7126CPL+ (Primary Substitute)

The ICL7126CPL+ is the optimal direct replacement for TC7126ARCPL applications. Both parts share identical electrical specifications (9V supply, 0°C to 70°C operating range), package format (40-DIP through-hole), and functional classification (Data Acquisition display driver). The ICL7126CPL+ maintains active product status with ROHS3 compliance and MSL-1 moisture sensitivity rating, ensuring supply chain continuity and regulatory alignment. No circuit modifications are required for this substitution.

AD8387JSVZ (Alternative Substitute)

The AD8387JSVZ is an alternative display driver from Analog Devices Inc. with active product status and ROHS3 compliance. However, this part operates on 3V to 3.6V supply voltage and uses 80-TQFP surface-mount packaging, requiring significant circuit redesign and PCB layout modifications. This substitute is suitable only for new designs where supply voltage and mounting technology can be accommodated.

Frequently Asked Questions (FAQ)

Q: Can ICL7126CPL+ be used as a direct drop-in replacement for TC7126ARCPL?

A: Yes. The ICL7126CPL+ is a direct functional equivalent with identical package (40-DIP), supply voltage (9V), operating temperature range (0°C to 70°C), and display driver specifications. No circuit modifications are required.

Q: What are the key differences between ICL7126CPL+ and AD8387JSVZ?

A: The primary differences are supply voltage (9V vs. 3V–3.6V), package type (40-DIP through-hole vs. 80-TQFP surface-mount), and moisture sensitivity level (MSL-1 vs. MSL-3). These differences require circuit and PCB redesign for AD8387JSVZ implementation.

Q: Is the AD8387JSVZ suitable for existing TC7126ARCPL designs?

A: No. The AD8387JSVZ requires different supply voltage regulation and surface-mount PCB layout, making it unsuitable for direct substitution in existing through-hole designs. This part is recommended only for new designs with compatible power supply and PCB architecture.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. Both ICL7126CPL+ and AD8387JSVZ are ROHS3 compliant, matching the compliance status of the original TC7126ARCPL.

Q: What is the moisture sensitivity consideration for these parts?

A: TC7126ARCPL and ICL7126CPL+ both have MSL-1 (unlimited moisture sensitivity), requiring standard handling. AD8387JSVZ has MSL-3 (168-hour moisture sensitivity), requiring controlled storage and handling procedures during assembly.