PCA8547BHT/AY LCD Driver Equivalent & Substitute Parts

Part Overview

The PCA8547BHT/AY is a 7-segment LCD driver IC manufactured by NXP USA Inc., housed in a 64-TQFP package. This component supports multiple display configurations including 7-segment with decimal point, 14-segment with decimal point and apostrophe, and dot matrix displays with up to 176 elements. The part operates across a wide supply voltage range of 1.8V to 5.5V with minimal current consumption of 90 µA, making it suitable for battery-powered and low-power applications.

The PCA8547BHT/AY is classified as obsolete, which necessitates identification of active equivalent parts for new designs and ongoing production requirements. The recommended substitute maintains functional compatibility while offering active product status and improved availability.

Substiute Parts

PCA8547BHT/AY

NXP USA Inc.In Stock: 3691PCA8547BHT/AY Datasheet

Current PartRFQ

PCA8547AHT/AY

NXP USA Inc.In Stock: 1071PCA8547AHT/AY Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PCA8547BHT/AY is determined by strict alignment with the following critical parameters:

• Display Type: LCD
• Configuration: 7 Segment + DP, 14 Segment + DP + AP, Dot Matrix
• Digits or Characters: 11 Characters, 22 Characters, 176 Elements
• Current - Supply: 90 µA
• Voltage - Supply: 1.8V ~ 5.5V
• Operating Temperature: -40°C ~ 95°C
• Package / Case: 64-TQFP (10x10)
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 2 (1 Year)

The PCA8547AHT/AY qualifies as a direct substitute based on complete alignment with all critical electrical and mechanical parameters. Both parts share identical display capabilities, supply specifications, thermal operating range, and package footprint. The primary distinction is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The PCA8547AHT/AY is the direct equivalent for the obsolete PCA8547BHT/AY. Selection of the substitute part is based on the following engineering criteria:

• Active product status ensures long-term availability and manufacturing support
• Identical electrical specifications guarantee functional compatibility in existing circuit designs
• Matching package footprint (64-TQFP 10x10) permits direct PCB layout reuse without redesign
• ROHS3 compliance and MSL rating maintain environmental and reliability standards
• Tape & Reel packaging format supports high-volume production workflows

No design modifications or circuit alterations are required when transitioning from the main part to the substitute.

Frequently Asked Questions (FAQ)

Q: Can the PCA8547AHT/AY be used as a direct replacement for the PCA8547BHT/AY?

A: Yes. Both parts are manufactured by NXP USA Inc. and share identical electrical specifications, display configurations, supply voltage range, current consumption, operating temperature range, and 64-TQFP package footprint. The substitute is functionally equivalent.

Q: What is the difference between the PCA8547BHT/AY and PCA8547AHT/AY?

A: The primary differences are product status and packaging format. The PCA8547BHT/AY is obsolete and supplied in Cut Tape format, while the PCA8547AHT/AY is active and supplied in Tape & Reel format. All electrical and mechanical parameters are identical.

Q: Will the PCA8547AHT/AY fit the same PCB footprint as the PCA8547BHT/AY?

A: Yes. Both parts use the 64-TQFP (10x10) package with identical pin configuration and spacing. No PCB layout modifications are necessary.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts maintain ROHS3 compliance, identical Moisture Sensitivity Level (MSL) rating of 2 (1 Year), and equivalent environmental certifications.

Q: What interface protocol does the PCA8547AHT/AY use?

A: The PCA8547AHT/AY uses I2C interface protocol for communication with host microcontrollers and processors.