TC7136ACLW Equivalent & Substitute Parts

Part Overview

The TC7136ACLW is a 7-segment display driver IC designed for 4.6-digit display applications in a 44-PLCC surface mount package. Manufactured by Microchip Technology, this component operates at 9V supply voltage with an operating temperature range of 0°C to 70°C. The part is currently obsolete, making equivalent substitutes necessary for new designs and production continuity. Substitute parts must maintain functional compatibility with 4.6-digit display driving capability while meeting the same electrical and mechanical specifications.

Substiute Parts

TC7136ACLW

Microchip TechnologyIn Stock: 1098TC7136ACLW Datasheet

Current PartRFQ

ICL7136CQH+

Analog Devices Inc./Maxim IntegratedIn Stock: 851ICL7136CQH+ Datasheet

MFR RecommendedRFQ

ICL7136CQH+D

Analog Devices Inc./Maxim IntegratedIn Stock: 1044ICL7136CQH+D Datasheet

MFR RecommendedRFQ

ICL7136CQH+TD

Analog Devices Inc./Maxim IntegratedIn Stock: 967ICL7136CQH+TD Datasheet

MFR RecommendedRFQ

ICM7224IPL+

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

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TC7136ACLW are grouped based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

• Display driver functionality for 4.6-digit display applications
• 44-PLCC surface mount package (44-LCC J-Lead configuration)
• 9V supply voltage operation
• Operating temperature range of 0°C to 70°C
• Surface mount mounting type

Substitute Categories:

Category 1: Direct Package & Voltage Equivalents (Recommended) ICL7136CQH+ variants (ICL7136CQH+, ICL7136CQH+D, ICL7136CQH+TD) maintain identical package specifications, voltage supply requirements, operating temperature range, and display resolution. These parts differ only in packaging format (bulk, tube, or tape & reel) and are manufactured by Analog Devices Inc./Maxim Integrated with active product status and RoHS3 compliance.

Category 2: Functional Alternative with Package Variation ICM7224IPL+ provides 7-segment display driver functionality but operates in a 40-DIP through-hole package with a different voltage range (3V ~ 6V) and extended operating temperature (-20°C ~ 85°C). This part is suitable only for designs where package conversion and voltage adjustment are feasible.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Recommended): The ICL7136CQH+ series (ICL7136CQH+, ICL7136CQH+D, ICL7136CQH+TD) are the primary substitutes for TC7136ACLW. These parts maintain identical electrical and mechanical specifications, including 44-PLCC package, 9V supply voltage, 0°C to 70°C operating temperature, and 4.6-digit display resolution. All three variants are manufactured by Analog Devices Inc./Maxim Integrated with active product status and RoHS3 compliance. Selection among these three depends on packaging requirements: ICL7136CQH+ for bulk, ICL7136CQH+D for tube packaging, and ICL7136CQH+TD for tape & reel format.

For Alternative Applications: The ICM7224IPL+ is suitable only when design modifications are acceptable. This part operates at 3V to 6V (not 9V) and uses a 40-DIP through-hole package instead of 44-PLCC surface mount. The extended operating temperature range (-20°C to 85°C) and lower moisture sensitivity (MSL 1) may provide advantages in specific environmental conditions, but package and voltage conversion are required.

Frequently Asked Questions (FAQ)

Q: Can ICL7136CQH+ directly replace TC7136ACLW without PCB modifications? A: Yes. The ICL7136CQH+ series maintains identical 44-PLCC package dimensions, pin configuration, voltage supply (9V), and operating temperature range (0°C to 70°C). No PCB layout changes are required for direct substitution.

Q: What is the difference between ICL7136CQH+, ICL7136CQH+D, and ICL7136CQH+TD? A: These three parts are electrically and mechanically identical. The differences are in packaging format only: ICL7136CQH+ is supplied in bulk, ICL7136CQH+D in tube packaging, and ICL7136CQH+TD in tape & reel format. Selection depends on production volume and assembly line requirements.

Q: Why is ICM7224IPL+ listed as a substitute if it has different voltage and package specifications? A: ICM7224IPL+ is a functional alternative for applications where design modifications are feasible. It provides 7-segment display driver capability but requires voltage regulation adjustment (from 9V to 3V-6V range) and PCB redesign for through-hole mounting. This part is not recommended for direct replacement.

Q: Is RoHS compliance important for this substitution? A: The original TC7136ACLW is RoHS non-compliant. All recommended substitutes (ICL7136CQH+ series) are RoHS3 compliant, which may be required for new designs or regulatory compliance in certain markets. Verify compliance requirements for your specific application.

Q: What is the moisture sensitivity level (MSL) and why does it matter? A: MSL 3 (168 Hours) indicates the component can be exposed to moisture for up to 168 hours at specified humidity levels before soldering. Both the original part and ICL7136CQH+ series have identical MSL ratings. ICM7224IPL+ has MSL 1 (unlimited), providing better moisture tolerance but requiring package conversion.

Q: Are there any supply voltage considerations when substituting? A: The ICL7136CQH+ series operate at 9V, matching the original TC7136ACLW specification. ICL7136CQH+D and ICL7136CQH+TD explicitly specify 9V supply. ICL7136CQH+ does not specify voltage in the provided data but maintains functional compatibility. ICM7224IPL+ requires 3V to 6V supply and is not suitable for 9V applications without voltage regulation.