PCF8577CT/3,112 Equivalent & Substitute Parts

Part Overview

The PCF8577CT/3,112 is a 32-segment LCD driver IC manufactured by NXP USA Inc., designed for driving LCD displays with I2C interface control. This component operates across a 2.5V to 6V supply voltage range and supports operating temperatures from -40°C to 85°C. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

PCF8577CT/3,112

NXP USA Inc.In Stock: 14126PCF8577CT/3,112 Datasheet

Current PartRFQ

PCF8577CT/3,118

NXP USA Inc.In Stock: 39369PCF8577CT/3,118 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PCF8577CT/3,112 is determined by strict alignment across the following critical parameters:

• Base Product Number: PCF8577 (core functional family)
• Display Configuration: 32 Segment LCD driver capability
• Interface Protocol: I2C communication standard
• Supply Voltage Range: 2.5V ~ 6V
• Operating Temperature Range: -40°C ~ 85°C
• Package Type: 40-BSOP (40-VSO)
• Mounting Technology: Surface Mount
• Regulatory Compliance: ROHS3 Compliant, REACH Unaffected

The PCF8577CT/3,118 meets all substitution criteria as a direct equivalent within the PCF8577 product family, maintaining identical electrical specifications and physical packaging requirements.

Parameter Comparison

Engineering Selection Recommendations

The PCF8577CT/3,118 is a direct functional equivalent to the PCF8577CT/3,112. Both components share identical electrical specifications, package geometry, and regulatory compliance certifications. Selection between these parts should be based on inventory availability and procurement lead times, as both are classified as obsolete products. The PCF8577CT/3,118 currently maintains higher inventory levels (39,259 units) compared to the PCF8577CT/3,112 (14,020 units), making it the preferred choice for immediate procurement requirements.

Frequently Asked Questions (FAQ)

Q: Can PCF8577CT/3,118 be used as a direct replacement for PCF8577CT/3,112?

A: Yes. Both parts are identical in electrical performance, I2C interface protocol, 32-segment LCD driver configuration, supply voltage range (2.5V ~ 6V), operating temperature range (-40°C ~ 85°C), and 40-BSOP package specifications. No circuit modifications are required.

Q: Are there any package or pinout differences between these parts?

A: No. Both components use the 40-BSOP (40-VSO) package with identical pin assignments and physical dimensions (0.295", 7.50mm Width). PCB layouts and footprints are fully compatible.

Q: What is the significance of the part number suffix differences (3,112 vs. 3,118)?

A: The suffix designates internal manufacturing batches or tape/reel configurations. These differences do not affect electrical performance, functionality, or compatibility. Both parts meet identical ROHS3 and REACH compliance requirements.

Q: Why are both parts classified as obsolete?

A: Obsolete status indicates these components are no longer in active production by NXP USA Inc. However, both parts remain available through existing inventory channels. For new designs requiring 32-segment LCD driver functionality, evaluation of current-generation alternatives within the PCF8577 family or successor product lines is recommended.

Q: Are moisture sensitivity and storage requirements identical?

A: Yes. Both parts carry MSL Level 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling. Standard ESD precautions apply to all surface-mount components.