MM5453V LCD Driver IC - Equivalent & Substitute Parts

Part Overview

The MM5453V is a 7-segment LCD driver IC manufactured by Texas Instruments, designed for 4.5-digit display applications. This device operates as a serial interface LCD driver in the COPS™ series and is housed in a 44-PLCC package. The MM5453V is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing production, maintenance, and design continuity in legacy systems.

Substiute Parts

MM5453V

Texas InstrumentsIn Stock: 1181MM5453V Datasheet

Current PartRFQ

MM5453V/NOPB

Texas InstrumentsIn Stock: 1060MM5453V/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MM5453V is determined by strict alignment of the following critical parameters:

• Display Configuration: 7 Segment + DP, Alphanumeric and Bar Graph capability
• Digit Count: 4.5 Digits
• Interface Type: Serial
• Voltage Supply Range: 3V ~ 10V
• Package Type: 44-PLCC (44-LCC J-Lead)
• Mounting: Surface Mount
• Operating Temperature Range: -40°C ~ 85°C

The MM5453V/NOPB qualifies as a direct substitute based on identical electrical specifications, package configuration, and functional capability. The primary distinction lies in product status and compliance certifications, which affect availability and regulatory requirements rather than electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The MM5453V/NOPB is the direct functional equivalent of the MM5453V. Both parts share identical electrical specifications, package dimensions, and interface characteristics, ensuring pin-for-pin and functional compatibility in circuit applications.

Selection between these parts depends on regulatory and procurement requirements:

• MM5453V: Suitable for legacy system maintenance where existing inventory exists and RoHS compliance is not mandated. Product status is obsolete, indicating limited future availability.

• MM5453V/NOPB: Recommended for new designs and systems requiring RoHS3 compliance. This variant carries Last Time Buy status, providing a defined procurement window before complete discontinuation. The NOPB designation indicates lead-free construction, aligning with modern environmental and regulatory standards.

The difference in Moisture Sensitivity Level (MSL 2A versus MSL 3) reflects packaging improvements in the NOPB variant, providing extended shelf life under controlled storage conditions.

Frequently Asked Questions (FAQ)

Q: Can MM5453V/NOPB be used as a direct replacement for MM5453V in existing designs?

A: Yes. Both parts are electrically and mechanically identical. Pin configuration, voltage supply range, operating temperature, and display capability are equivalent. The NOPB variant incorporates lead-free construction and improved moisture handling, making it suitable for direct substitution.

Q: What does the NOPB designation mean?

A: NOPB stands for "No Plumbum" (no lead). This indicates the part is manufactured without lead content, complying with RoHS3 standards. The MM5453V/NOPB is lead-free, whereas the MM5453V is RoHS non-compliant.

Q: Why is the Moisture Sensitivity Level different between the two parts?

A: The MM5453V/NOPB has MSL 3 (168 hours), compared to MSL 2A (4 weeks) for the MM5453V. This reflects improved packaging in the NOPB variant, allowing longer shelf life under controlled humidity conditions before soldering.

Q: Are there any pin or package differences between MM5453V and MM5453V/NOPB?

A: No. Both parts use the 44-PLCC (44-LCC J-Lead) package with identical dimensions of 16.58x16.58 mm. Pin assignments and mechanical footprints are identical.

Q: Which part should be selected for new production?

A: MM5453V/NOPB is recommended for new designs. It carries Last Time Buy status, providing a defined procurement window, and meets current RoHS3 compliance requirements. The MM5453V is obsolete and should be reserved for legacy system maintenance only.

Q: What is the supply voltage range for both parts?

A: Both the MM5453V and MM5453V/NOPB operate with a supply voltage range of 3V to 10V, supporting a wide range of power supply configurations in LCD driver applications.

Q: Are both parts suitable for the full operating temperature range of -40°C to 85°C?

A: Yes. Both parts are rated for identical operating temperature ranges of -40°C to 85°C, ensuring consistent performance across industrial and commercial temperature environments.