AT28C010-15TI Equivalent & Substitute Parts

Part Overview

The AT28C010-15TI is a 1Mbit parallel EEPROM memory IC manufactured by Microchip Technology, featuring 128K x 8 organization with 150 ns access time and 10ms write cycle time. This component operates across the industrial temperature range of -40°C to 85°C with a 4.5V to 5.5V supply voltage requirement. The AT28C010-15TI is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and procurement planning.

Key Parameters

Parameter	Value
Memory Type	Non-Volatile EEPROM
Memory Size	1Mbit
Memory Organization	128K x 8
Memory Interface	Parallel
Access Time	150 ns
Write Cycle Time	10ms
Voltage Supply Range	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Package Type	32-TFSOP (0.724", 18.40mm Width)
Mounting Type	Surface Mount
Moisture Sensitivity Level	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution eligibility for the AT28C010-15TI is determined by strict equivalence across the following critical parameters:

Memory capacity and organization (1Mbit, 128K x 8)
Parallel interface architecture
Access time specification (150 ns)
Write cycle time (10ms)
Supply voltage range (4.5V ~ 5.5V)
Operating temperature range (-40°C ~ 85°C)
Physical package (32-TFSOP surface mount)
Moisture sensitivity classification (MSL 3)

The AT28C010-15TU qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility. The primary distinction lies in product status and packaging format, not functional or electrical parameters.

Parameter Comparison

Parameter	AT28C010-15TI	AT28C010-15TU
Manufacturer	Microchip Technology	Microchip Technology
Memory Type	Non-Volatile EEPROM	Non-Volatile EEPROM
Memory Size	1Mbit	1Mbit
Memory Organization	128K x 8	128K x 8
Memory Interface	Parallel	Parallel
Access Time	150 ns	150 ns
Write Cycle Time	10ms	10ms
Voltage Supply	4.5V ~ 5.5V	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	32-TFSOP (0.724", 18.40mm Width)	32-TFSOP (0.724", 18.40mm Width)
Mounting Type	Surface Mount	Surface Mount
MSL Rating	3 (168 Hours)	3 (168 Hours)
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant

Engineering Selection Recommendations

The AT28C010-15TU serves as the functional equivalent for the obsolete AT28C010-15TI. Both parts share identical electrical and mechanical specifications, ensuring direct compatibility in circuit applications. The AT28C010-15TU maintains active product status with Microchip Technology, providing superior long-term availability and supply chain reliability compared to the obsolete AT28C010-15TI.

The AT28C010-15TU achieves ROHS3 compliance, whereas the AT28C010-15TI is RoHS non-compliant. This distinction is relevant for applications subject to RoHS regulatory requirements. Both parts carry REACH Unaffected status and EAR99 export classification.

Packaging format differs between the two parts: AT28C010-15TI is supplied in standard packaging, while AT28C010-15TU is supplied in tray format. This distinction affects handling and storage procedures but does not impact electrical or mechanical performance.

Frequently Asked Questions (FAQ)

Q: Can AT28C010-15TU directly replace AT28C010-15TI in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters including memory capacity, access time, supply voltage, operating temperature range, and 32-TFSOP package dimensions. Direct substitution is supported without circuit modification.

Q: What is the significance of the product status difference (Obsolete vs. Active)?

A: Product status indicates manufacturing and support lifecycle. The AT28C010-15TI is obsolete, meaning Microchip Technology has discontinued production and support. The AT28C010-15TU is active, ensuring continued availability, technical support, and supply chain access.

Q: How does RoHS compliance affect part selection?

A: RoHS compliance is a regulatory requirement in specific markets and applications. The AT28C010-15TU meets ROHS3 standards, while the AT28C010-15TI does not. Selection depends on application regulatory requirements and end-market restrictions.

Q: Are there packaging considerations when switching from AT28C010-15TI to AT28C010-15TU?

A: The AT28C010-15TI uses standard packaging while AT28C010-15TU uses tray packaging. Both maintain identical component dimensions and pin configuration. Tray packaging affects storage, handling, and automated assembly processes but not electrical performance or PCB footprint.

Q: What parameters must remain constant for substitution validity?

A: Memory capacity (1Mbit), organization (128K x 8), interface type (Parallel), access time (150 ns), write cycle time (10ms), supply voltage (4.5V ~ 5.5V), operating temperature (-40°C ~ 85°C), and physical package (32-TFSOP) must all remain identical for functional equivalence.

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