AT28C010-12TC Equivalent & Substitute Parts

Part Overview

The AT28C010-12TC is a 1Mbit parallel EEPROM memory IC manufactured by Microchip Technology, organized as 128K x 8 with a 120 ns access time and 10ms write cycle time. This component operates at 4.5V to 5.5V supply voltage and is housed in a 32-TFSOP surface mount package. The AT28C010-12TC is classified as obsolete, making identification of functionally equivalent alternatives essential for system redesign, legacy product support, and procurement continuity.

Substiute Parts

AT28C010-12TC

Microchip TechnologyIn Stock: 1137AT28C010-12TC Datasheet

Current PartRFQ

AT28C010-12TU

Microchip TechnologyIn Stock: 1294AT28C010-12TU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AT28C010-12TC is determined by strict equivalence across the following parameters:

• Memory capacity (1Mbit, 128K x 8 organization)
• Parallel interface architecture
• Access time specification (120 ns)
• Write cycle time (10ms)
• Supply voltage range (4.5V ~ 5.5V)
• Package form factor (32-TFSOP)
• Surface mount technology compatibility
• Moisture sensitivity classification (MSL 3)

The AT28C010-12TU qualifies as a direct substitute based on identical electrical specifications and package dimensions. Differences in operating temperature range and product status do not affect functional substitution within the specified electrical parameters.

Parameter Comparison

Engineering Selection Recommendations

The AT28C010-12TU is the qualified substitute for the AT28C010-12TC. Both components share identical electrical and mechanical specifications within the core functional parameters: 1Mbit capacity, 128K x 8 organization, 120 ns access time, 10ms write cycle time, parallel interface, and 32-TFSOP package.

The AT28C010-12TU offers extended operating temperature range (-40°C to 85°C versus 0°C to 70°C) and active product status, providing improved availability and environmental performance. The AT28C010-12TU achieves ROHS3 compliance, whereas the AT28C010-12TC is non-compliant.

Selection between these parts depends on application requirements: the AT28C010-12TC may be retained for legacy systems with specific temperature constraints, while the AT28C010-12TU is preferred for new designs and systems requiring extended temperature operation or regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the AT28C010-12TU directly replace the AT28C010-12TC in existing designs?

A: Yes. Both parts are electrically and mechanically equivalent across all specified parameters: memory capacity, organization, access time, write cycle time, supply voltage, and package form factor. The AT28C010-12TU operates across a wider temperature range and is actively manufactured.

Q: What is the significance of the different operating temperature ranges?

A: The AT28C010-12TC operates from 0°C to 70°C, while the AT28C010-12TU operates from -40°C to 85°C. For applications within the 0°C to 70°C window, both parts are functionally equivalent. Applications requiring extended temperature operation must use the AT28C010-12TU.

Q: Does RoHS compliance affect functional substitution?

A: RoHS compliance is a regulatory and environmental classification, not a functional parameter. The AT28C010-12TU's ROHS3 compliance does not alter electrical or mechanical performance. Selection depends on system regulatory requirements and supply chain policies.

Q: Are there packaging differences between these parts?

A: Both parts use the 32-TFSOP package (0.724", 18.40mm width) with surface mount technology. The AT28C010-12TC is supplied in tube packaging, while the AT28C010-12TU is supplied in tray packaging. PCB footprint and electrical interface are identical.

Q: Why is the AT28C010-12TC classified as obsolete?

A: Obsolescence reflects Microchip Technology's product lifecycle status. The AT28C010-12TU remains in active production with equivalent specifications, making it the recommended choice for ongoing procurement and new designs.