TC7136CKW Equivalent & Substitute Parts

Part Overview

The TC7136CKW is a 4.6-digit display driver IC manufactured by Microchip Technology in a 44-MQFP surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for new designs and production continuity. The TC7136CKW operates on a 9V single supply with an operating temperature range of 0°C to 70°C and is designed for data acquisition applications requiring 7-segment display driving capability.

Substiute Parts

TC7136CKW

Microchip TechnologyIn Stock: 1179TC7136CKW Datasheet

Current PartRFQ

ICL7136CM44Z

Renesas Electronics CorporationIn Stock: 1334ICL7136CM44Z Datasheet

DirectRFQ

ICL7136CM44ZT

Renesas Electronics CorporationIn Stock: 955ICL7136CM44ZT Datasheet

DirectRFQ

ICL7136CMH+D

Analog Devices Inc./Maxim IntegratedIn Stock: 2177ICL7136CMH+D Datasheet

MFR RecommendedRFQ

ICL7136CMH+TD

Analog Devices Inc./Maxim IntegratedIn Stock: 1892ICL7136CMH+TD Datasheet

MFR RecommendedRFQ

ICM7224IPL+

Analog Devices Inc./Maxim IntegratedIn Stock: 915ICM7224IPL+ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the TC7136CKW is determined by the following critical parameters:

• Package compatibility: 44-QFP (44-MQFP 10x10) surface mount package
• Voltage supply: 9V single supply operation
• Operating temperature range: 0°C ~ 70°C
• Functional classification: Display driver with 4.6-digit resolution capability
• Mounting type: Surface mount technology

Substitute parts are grouped into two categories based on these parameters:

Category 1 - Direct Package & Voltage Equivalents (44-MQFP, 9V Supply): ICL7136CM44Z, ICL7136CM44ZT, ICL7136CMH+D, and ICL7136CMH+TD all maintain identical package geometry, voltage supply requirements, and operating temperature specifications. These parts are manufactured by Renesas Electronics Corporation and Analog Devices Inc./Maxim Integrated, both active product lines with RoHS3 compliance.

Category 2 - Functional Alternative (Different Package): ICM7224IPL+ provides equivalent display driver functionality but operates in a 40-DIP through-hole package with a different voltage supply range (3V ~ 6V) and extended operating temperature (-20°C ~ 85°C). This part is suitable only when package conversion and voltage supply modification are feasible.

Parameter Comparison

Engineering Selection Recommendations

For direct replacement in existing designs: Select ICL7136CM44Z, ICL7136CM44ZT, ICL7136CMH+D, or ICL7136CMH+TD. All four parts maintain identical electrical specifications, package geometry, and operating parameters as the TC7136CKW. These parts are manufactured by established suppliers with active product status and RoHS3 compliance, providing long-term availability and regulatory compliance advantages over the obsolete TC7136CKW.

Packaging consideration for production: ICL7136CM44Z is supplied in Tray packaging, while ICL7136CM44ZT is supplied in Tape & Reel format. ICL7136CMH+D is supplied in Tray packaging, and ICL7136CMH+TD is supplied in Tape & Reel format. Select based on your assembly process requirements.

For applications permitting design modification: ICM7224IPL+ is suitable only when circuit redesign accommodates a 40-DIP through-hole package, voltage supply adjustment to 3V ~ 6V range, and extended operating temperature capability (-20°C ~ 85°C). This part offers improved moisture sensitivity (MSL 1) but requires significant board layout and power supply modifications.

Frequently Asked Questions (FAQ)

Q: Can ICL7136CM44Z directly replace TC7136CKW without circuit modification? A: Yes. ICL7136CM44Z maintains identical package geometry (44-MQFP), voltage supply (9V), operating temperature range (0°C ~ 70°C), and functional specifications. No circuit modification is required for direct substitution.

Q: What is the difference between ICL7136CM44Z and ICL7136CM44ZT? A: Both parts are electrically and functionally identical. The difference is packaging format: ICL7136CM44Z is supplied in Tray, while ICL7136CM44ZT is supplied in Tape & Reel (TR). Select based on your assembly equipment and production volume requirements.

Q: Are ICL7136CMH+D and ICL7136CMH+TD interchangeable with ICL7136CM44Z? A: Yes, electrically and functionally. All four ICL7136 variants operate at 9V, support 4.6-digit display driving, and use the 44-MQFP package. Differences are limited to packaging format (Tray vs. Tape & Reel) and manufacturer designation. Select based on availability and packaging preference.

Q: Why is ICM7224IPL+ listed as a substitute if it requires design changes? A: ICM7224IPL+ provides equivalent display driver functionality but operates in a different package (40-DIP through-hole) with different voltage requirements (3V ~ 6V). It is listed as a functional alternative only for applications where board redesign and power supply modification are acceptable.

Q: What is the impact of RoHS3 compliance on substitution? A: The TC7136CKW is RoHS non-compliant, while all substitute parts (ICL7136 series and ICM7224IPL+) are RoHS3 compliant. For new designs and production, RoHS3-compliant substitutes provide regulatory compliance and improved environmental standards.

Q: Does moisture sensitivity level affect substitution suitability? A: The TC7136CKW and all ICL7136 variants share MSL 3 (168 Hours), requiring identical moisture control during storage and assembly. ICM7224IPL+ has MSL 1 (Unlimited), offering superior moisture tolerance but requiring package and design changes for implementation.