PCF8577CT/3,118 Equivalent & Substitute Parts

Part Overview

The PCF8577CT/3,118 is an LCD driver IC manufactured by NXP USA Inc., designed for 32-segment LCD display applications. This component operates across a 2.5V to 6V supply voltage range and communicates via I2C interface, supporting operating temperatures from -40°C to 85°C. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

PCF8577CT/3,118

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

Current PartRFQ

PCF8562TT/2,518

NXP USA Inc.In Stock: 10437PCF8562TT/2,518 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PCF8577CT/3,118 is determined by the following critical parameters:

• Display Driver Function: Both parts must support LCD driver operation with I2C communication protocol
• Segment Configuration: 32-segment capability is required for functional equivalence
• Supply Voltage Range: The substitute must operate within or encompass the original 2.5V to 6V range
• Operating Temperature Range: Compatibility with -40°C to 85°C operating conditions
• Surface Mount Packaging: Both parts utilize surface mount technology for PCB integration
• Compliance Standards: RoHS3 compliance and REACH unaffected status maintained

The PCF8562TT/2,518 meets these substitution criteria as an active, production-supported LCD driver from the same manufacturer with compatible functional specifications.

Parameter Comparison

Engineering Selection Recommendations

The PCF8562TT/2,518 is the designated substitute for the obsolete PCF8577CT/3,118. Both components are manufactured by NXP USA Inc. and maintain identical compliance certifications (ROHS3 Compliant, REACH Unaffected). The substitute part is currently in active production status with confirmed inventory availability.

Key considerations for selection:

• Supply Voltage: The PCF8562TT/2,518 operates at 1.8V to 5.5V, which overlaps the original 2.5V to 6V range. Applications requiring operation below 1.8V or above 5.5V require design review.
• Package Transition: The substitute uses 48-TFSOP packaging versus the original 40-BSOP. PCB layout modification is required.
• Automotive Grade: The PCF8562TT/2,518 carries AEC-Q100 qualification, providing enhanced reliability for automotive applications.
• Current Consumption: The substitute specifies 4.6 µA supply current, supporting low-power design requirements.

Frequently Asked Questions (FAQ)

Q: Can the PCF8562TT/2,518 directly replace the PCF8577CT/3,118 without design changes?

A: Functional substitution is possible due to matching I2C interface, 32-segment configuration, and operating temperature range. However, the package change from 40-BSOP to 48-TFSOP requires PCB layout modification and footprint redesign.

Q: What is the voltage compatibility between these parts?

A: The original PCF8577CT/3,118 operates at 2.5V to 6V. The substitute PCF8562TT/2,518 operates at 1.8V to 5.5V. The overlap range is 2.5V to 5.5V. Designs operating at 5.5V to 6V require verification of substitute performance at the upper voltage limit.

Q: Are both parts RoHS compliant?

A: Yes, both the PCF8577CT/3,118 and PCF8562TT/2,518 are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

Q: Why is the PCF8577CT/3,118 marked as obsolete?

A: The PCF8577CT/3,118 has reached end-of-life status. The PCF8562TT/2,518 represents the active production alternative from NXP USA Inc. for new designs and production continuity.

Q: Does the substitute part support automotive applications?

A: The PCF8562TT/2,518 carries AEC-Q100 qualification, indicating suitability for automotive-grade applications. The original PCF8577CT/3,118 does not specify automotive qualification.

Q: What are the pin count differences between these packages?

A: The PCF8577CT/3,118 uses 40-pin BSOP packaging, while the PCF8562TT/2,518 uses 48-pin TFSOP packaging. Pin assignment verification is required during design transition.