DP8570AVX Equivalent & Substitute Parts

Part Overview

The DP8570AVX is a Real Time Clock (RTC) IC Timer Clock Peripheral (TCP) manufactured by Texas Instruments. This 28-LCC (J-Lead) surface mount device provides 44 bytes of memory with alarm and leap year functionality, operating across a supply voltage range of 4.5V to 5.5V with battery backup capability from 2.2V to 5.1V. The DP8570AVX is classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

DP8570AVX

Texas InstrumentsIn Stock: 1888DP8570AVX Datasheet

Current PartRFQ

DP8570AVX/NOPB

Texas InstrumentsIn Stock: 1727DP8570AVX/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DP8570AVX is determined by strict equivalence across the following critical parameters:

• Base Product Number: DP8570 (identical silicon)
• Package / Case: 28-LCC (J-Lead) with supplier device package 28-PLCC (11.51x11.51)
• Memory Size: 44B
• Interface Type: Parallel
• Voltage Specifications: Supply 4.5V ~ 5.5V; Battery 2.2V ~ 5.1V
• Operating Temperature Range: -40°C ~ 85°C
• Functional Features: Alarm and Leap Year support
• Time/Date Formats: HH:MM:SS:hh (12/24 hr) and YY-MM-DD-dd

The DP8570AVX/NOPB represents the direct equivalent with identical electrical and mechanical specifications. The primary distinction is product status and packaging configuration.

Parameter Comparison

Engineering Selection Recommendations

The DP8570AVX/NOPB is the direct functional equivalent of the DP8570AVX. Selection between these parts should be based on the following criteria:

DP8570AVX/NOPB is the preferred choice for new designs and ongoing production due to its Active product status and ROHS3 compliance. This variant meets current regulatory requirements and ensures long-term component availability.

DP8570AVX remains electrically and mechanically identical but carries Obsolete status and RoHS non-compliance. This variant is suitable only for legacy system maintenance where existing inventory is available and regulatory compliance is not a requirement.

Both parts share identical electrical specifications, package dimensions, and functional capabilities. The selection decision is driven by product lifecycle status and compliance requirements rather than technical performance differences.

Frequently Asked Questions (FAQ)

Q: Can DP8570AVX/NOPB be used as a direct replacement for DP8570AVX?

A: Yes. Both parts are electrically and mechanically identical with the same 28-LCC (J-Lead) package, voltage specifications (4.5V ~ 5.5V supply, 2.2V ~ 5.1V battery), and functional features. The primary differences are product status and RoHS compliance.

Q: What is the difference between the bulk and Tape & Reel packaging?

A: DP8570AVX is supplied in bulk packaging, while DP8570AVX/NOPB is supplied in Tape & Reel (TR) configuration. Both contain identical components; packaging differs only in presentation and handling for automated assembly processes.

Q: Are there any electrical performance differences between these parts?

A: No. Both parts maintain identical timekeeping current (1µA @ 5V), operating temperature range (-40°C ~ 85°C), memory size (44B), and all functional specifications.

Q: Why is DP8570AVX marked as Obsolete?

A: The DP8570AVX has reached end-of-life status. The DP8570AVX/NOPB represents the active continuation of this product line with updated compliance certifications.

Q: Is RoHS compliance a critical factor for my application?

A: RoHS compliance is mandatory for products sold in regulated markets. DP8570AVX/NOPB (ROHS3 compliant) is required for new designs and applications subject to environmental regulations. DP8570AVX (RoHS non-compliant) is restricted to legacy system support only.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes. Both parts use the identical 28-LCC (J-Lead) package with matching pin configurations and footprints. No PCB redesign is required for substitution.