DM9368N LED Driver 7-Segment Display IC

Part Overview

The DM9368N is a 7-segment LED display driver IC manufactured by onsemi, packaged in a 16-DIP configuration. This component functions as a dedicated driver for LED display applications requiring 7-segment output control. The DM9368N is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The part operates within a supply voltage range of 4.75V to 5.25V with a maximum supply current of 67 mA and supports operating temperatures from 0°C to 70°C.

Substiute Parts

DM9368N

onsemiIn Stock: 1647DM9368N Datasheet

Current PartRFQ

CD4511BE

Texas InstrumentsIn Stock: 28017CD4511BE Datasheet

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ICL7136CMH+TD

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

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DM9368N is determined by the following critical parameters:

Primary Substitution Criteria:

• Display Type: LED
• Configuration: 7 Segment
• Mounting Type: Through Hole
• Package / Case: 16-DIP (0.300", 7.62mm)

Secondary Compatibility Factors:

• Voltage - Supply range compatibility
• Current - Supply requirements
• Operating Temperature range
• Product Status (Active preferred for new designs)

The CD4511BE qualifies as a direct substitute based on matching display type (LED), configuration (7 Segment), mounting type (Through Hole), and package specification (16-DIP). The ICL7136CMH+TD is listed as an alternative but operates under different functional parameters (4.6-digit display driver with surface mount packaging), making it suitable only for applications where form factor and functional requirements permit deviation from the original specification.

Parameter Comparison

Engineering Selection Recommendations

CD4511BE is the primary substitute for direct replacement applications. This part maintains identical package geometry (16-DIP), mounting type (Through Hole), and functional configuration (7-Segment LED driver). The CD4511BE offers superior product status (Active), broader supply voltage range (3V ~ 18V), and ROHS3 compliance, making it suitable for new designs and production environments with RoHS requirements. The extended operating temperature range (-55°C ~ 125°C) provides additional thermal margin beyond the original DM9368N specification.

ICL7136CMH+TD serves as an alternative only when application requirements permit surface mount packaging and 4.6-digit display functionality. This part is not recommended for direct pin-for-pin replacement due to package incompatibility (44-QFP vs. 16-DIP) and functional differences (4.6-digit vs. 7-segment configuration).

For applications requiring strict form factor and functional compatibility, CD4511BE is the appropriate selection. For new designs with flexible packaging requirements, ICL7136CMH+TD may be evaluated based on specific system architecture.

Frequently Asked Questions (FAQ)

Q: Can CD4511BE replace DM9368N in existing PCB designs? A: Yes. Both parts use identical 16-DIP package geometry with 0.300" (7.62mm) spacing, enabling direct socket substitution without PCB modification.

Q: What are the key electrical differences between DM9368N and CD4511BE? A: CD4511BE operates across a wider supply voltage range (3V ~ 18V) compared to DM9368N (4.75V ~ 5.25V). CD4511BE exhibits significantly lower quiescent current (40 nA vs. 67 mA). CD4511BE supports extended operating temperature range (-55°C ~ 125°C vs. 0°C ~ 70°C).

Q: Is ICL7136CMH+TD compatible with DM9368N applications? A: No direct compatibility exists. ICL7136CMH+TD uses 44-QFP surface mount packaging versus 16-DIP through-hole, and functions as a 4.6-digit display driver rather than a 7-segment driver. Application redesign is required for implementation.

Q: What compliance advantages does CD4511BE offer? A: CD4511BE is ROHS3 compliant, whereas DM9368N is RoHS non-compliant. This compliance status is critical for applications subject to RoHS regulations or customer requirements.

Q: Are there pin-to-pin functional differences between DM9368N and CD4511BE? A: Both parts implement 7-segment LED driver functionality in 16-DIP packages. Functional compatibility is maintained for standard 7-segment display applications. Interface specifications (BCD for CD4511BE) should be verified against application requirements.