AT28LV010-20JC Equivalent & Substitute Parts

Part Overview

The AT28LV010-20JC is a 1Mbit parallel EEPROM memory IC manufactured by Microchip Technology, housed in a 32-PLCC package with 200 ns access time. This part is classified as obsolete, making substitute components necessary for new designs and ongoing production support. The AT28LV010 series provides non-volatile memory storage suitable for embedded systems requiring parallel interface memory solutions.

Substiute Parts

AT28LV010-20JC

Microchip TechnologyIn Stock: 774AT28LV010-20JC Datasheet

Current PartRFQ

AT28LV010-20JU

Microchip TechnologyIn Stock: 1174AT28LV010-20JU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the AT28LV010-20JC is determined by strict equivalence across the following parameters:

• Memory capacity and organization (1Mbit, 128K x 8)
• Parallel interface architecture
• Access time specification (200 ns)
• Write cycle time (10ms)
• Supply voltage range (3V ~ 3.6V)
• Package and pinout compatibility (32-PLCC J-Lead)
• Mounting technology (Surface Mount)

The AT28LV010-20JU qualifies as a direct substitute based on identical electrical and mechanical specifications. The primary distinction lies in product status and operating temperature range, which do not affect functional substitution in applications designed for the original part.

Parameter Comparison

Engineering Selection Recommendations

The AT28LV010-20JU is the direct functional equivalent for the obsolete AT28LV010-20JC. Selection between these parts should be based on the following criteria:

For new designs and production: The AT28LV010-20JU is the appropriate choice. It maintains active product status, offers extended operating temperature range (-40°C to 85°C versus 0°C to 70°C), and achieves ROHS3 compliance, meeting current regulatory requirements.

For legacy system support: The AT28LV010-20JC remains electrically and mechanically compatible with existing designs. However, sourcing is limited to available inventory, and the part is no longer manufactured.

Both parts share identical memory specifications, access timing, supply voltage requirements, and physical packaging, ensuring direct substitution without circuit modification.

Frequently Asked Questions (FAQ)

Q: Can the AT28LV010-20JU replace the AT28LV010-20JC in existing designs?

A: Yes. Both parts are electrically and mechanically identical. The AT28LV010-20JU operates across a wider temperature range (-40°C to 85°C) and meets current RoHS compliance standards, making it suitable for direct substitution.

Q: What is the difference between the -20JC and -20JU designations?

A: The suffix indicates packaging and product status. The -20JC is obsolete with unspecified packaging, while the -20JU is active and supplied in tube packaging. The "20" denotes the 200 ns access time specification common to both variants.

Q: Are there any pinout differences between these parts?

A: No. Both parts use the 32-PLCC J-Lead package with identical pinout and electrical interface. Physical substitution requires no board redesign.

Q: What is the operating temperature impact when switching from AT28LV010-20JC to AT28LV010-20JU?

A: The AT28LV010-20JU supports -40°C to 85°C operation, compared to 0°C to 70°C for the AT28LV010-20JC. This extended range provides greater flexibility for industrial and automotive applications without affecting performance in standard commercial temperature ranges.

Q: Does RoHS compliance affect functional compatibility?

A: No. RoHS compliance relates to material composition and environmental standards, not electrical function. The AT28LV010-20JU's ROHS3 compliance ensures regulatory alignment for new products while maintaining full electrical equivalence.