MM145453VX LCD Driver IC - Equivalent & Substitute Parts

Part Overview

The MM145453VX 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 of 40 µA, making it suitable for battery-powered and low-power display systems. The part is classified as Obsolete, necessitating identification of functionally equivalent alternatives for new designs and production continuity.

Substiute Parts

MM145453VX

Texas InstrumentsIn Stock: 65858MM145453VX Datasheet

Current PartRFQ

MM145453VX/NOPB

Texas InstrumentsIn Stock: 29490MM145453VX/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MM145453VX is determined by strict alignment 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
• Mounting Type: Surface Mount
• Package / Case: 44-LCC (J-Lead)
• Supplier Device Package: 44-PLCC (16.58x16.58)

The direct substitute MM145453VX/NOPB maintains identical electrical and mechanical specifications while offering improved compliance status and alternative packaging options (Cut Tape and Digi-Reel).

Parameter Comparison

Engineering Selection Recommendations

MM145453VX/NOPB is the direct functional equivalent of MM145453VX. Both parts maintain identical electrical performance and mechanical compatibility across all critical parameters. The primary distinction lies in product lifecycle status and regulatory compliance:

• MM145453VX is classified as Obsolete with RoHS non-compliant status
• MM145453VX/NOPB is classified as Last Time Buy with ROHS3 Compliant certification

For new designs and applications requiring regulatory compliance, MM145453VX/NOPB is the appropriate selection. For legacy system maintenance where RoHS compliance is not mandated, MM145453VX remains functionally equivalent. Both parts are available in Surface Mount 44-PLCC packaging with identical pinout and electrical specifications.

Frequently Asked Questions (FAQ)

Q: Can MM145453VX/NOPB directly replace MM145453VX in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all functional parameters. The 44-PLCC package footprint, pinout, and electrical specifications are identical. Substitution requires no circuit modifications.

Q: What is the difference between MM145453VX and MM145453VX/NOPB?

A: The primary differences are product status and compliance certification. MM145453VX/NOPB is ROHS3 Compliant and classified as Last Time Buy, while MM145453VX is RoHS non-compliant and Obsolete. Electrical and mechanical specifications are identical.

Q: Are there packaging differences between these parts?

A: Both parts use the same 44-PLCC (16.58x16.58) package. MM145453VX/NOPB offers additional packaging options including Cut Tape (CT) and Digi-Reel, providing flexibility in procurement quantities.

Q: What is the Moisture Sensitivity Level difference?

A: MM145453VX has MSL 2A (4 Weeks), while MM145453VX/NOPB has MSL 3 (168 Hours). Both ratings indicate standard moisture handling requirements for Surface Mount components. MSL 3 provides a longer shelf life window.

Q: Is the 44-PLCC package still in production?

A: MM145453VX/NOPB is classified as Last Time Buy, indicating limited future availability. For long-term production requirements, alternative LCD driver solutions should be evaluated.