MM145453V LCD Driver IC - Equivalent & Substitute Parts

Part Overview

The MM145453V is a 7-segment LCD driver IC manufactured by Texas Instruments, designed for 4.5-digit display applications. This Surface Mount device operates across a 3V to 10V supply range with minimal current draw (40 µA), making it suitable for battery-powered and low-power display systems. The part is classified as Obsolete, indicating it is no longer in active production. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support legacy system maintenance or redesign initiatives.

Substiute Parts

MM145453V

Texas InstrumentsIn Stock: 2029MM145453V Datasheet

Current PartRFQ

MM145453V/NOPB

Texas InstrumentsIn Stock: 2397MM145453V/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MM145453V is determined by strict equivalence across the following critical parameters:

• Display Type: LCD
• Configuration: 7 Segment + DP, Alphanumeric and Bar Graph
• Interface: Serial
• Digits or Characters: 4.5 Digits
• Voltage - Supply: 3V ~ 10V
• Current - Supply: 40 µA
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-LCC (J-Lead)
• Supplier Device Package: 44-PLCC (16.58x16.58)

The MM145453V/NOPB is identified as a direct substitute based on identical electrical specifications, mechanical packaging, and functional configuration. Differences in product status and compliance certifications do not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The MM145453V/NOPB is the direct substitute for the MM145453V. Both parts are electrically and mechanically identical across all functional parameters. The primary distinction is product status and compliance certification:

• MM145453V is classified as Obsolete, indicating discontinued production with no future availability.
• MM145453V/NOPB is classified as Last Time Buy, indicating limited remaining inventory before final discontinuation.

For new designs or system maintenance requiring this LCD driver IC, the MM145453V/NOPB should be selected where available. The ROHS3 compliance of the MM145453V/NOPB provides regulatory advantage for applications subject to RoHS requirements. Both parts maintain identical electrical performance and package compatibility, ensuring direct pin-for-pin substitution in existing circuit designs.

Frequently Asked Questions (FAQ)

Q: Are MM145453V and MM145453V/NOPB electrically interchangeable?

A: Yes. Both parts are electrically identical with matching supply voltage (3V ~ 10V), current consumption (40 µA), operating temperature range (-40°C ~ 85°C), and all functional specifications.

Q: What is the difference between MM145453V and MM145453V/NOPB?

A: The primary differences are product status (Obsolete vs. Last Time Buy), RoHS compliance (non-compliant vs. ROHS3 compliant), and packaging format (unspecified vs. Tube). Electrical and mechanical specifications are identical.

Q: Can MM145453V/NOPB be used as a direct replacement in existing designs?

A: Yes. The MM145453V/NOPB provides direct pin-for-pin substitution with identical package dimensions (44-PLCC, 16.58x16.58) and all electrical parameters.

Q: Why is the MM145453V classified as Obsolete?

A: Obsolete status indicates the part is no longer manufactured by Texas Instruments and existing inventory is depleted. The MM145453V/NOPB, classified as Last Time Buy, represents the final production run before complete discontinuation.

Q: What packaging options are available for these parts?

A: The MM145453V/NOPB is supplied in Tube packaging. Both parts use the 44-PLCC (16.58x16.58) package format for Surface Mount applications.

Q: Are there any compliance differences between these parts?

A: Yes. The MM145453V/NOPB is ROHS3 compliant, while the MM145453V is RoHS non-compliant. Both are REACH Unaffected and classified under ECCN EAR99.