AT27BV010-15JC Equivalent & Substitute Parts

Part Overview

The AT27BV010-15JC is a 1Mbit EPROM (Erasable Programmable Read-Only Memory) manufactured by Microchip Technology in a 32-PLCC surface mount package. This part operates with dual voltage supply ranges (2.7V–3.6V and 4.5V–5.5V) and features a 150 ns access time. The device is classified as obsolete, making substitute parts necessary for new designs and ongoing production support. The part is RoHS non-compliant and carries an MSL rating of 2 (1 Year).

Key Parameters

Parameter	Value
Memory Type	Non-Volatile EPROM
Memory Size	1Mbit
Memory Organization	128K x 8
Memory Interface	Parallel
Access Time	150 ns
Voltage Supply	2.7V–3.6V, 4.5V–5.5V
Operating Temperature	0°C–70°C
Package Type	32-PLCC (13.97×11.43 mm)
Mounting Type	Surface Mount
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the AT27BV010-15JC is determined by the following critical parameters:

Memory Capacity & Organization: Must be 1Mbit with 128K × 8 organization to maintain functional equivalence
Memory Interface: Must support parallel interface for direct pin compatibility
Package & Pinout: Must use 32-PLCC (13.97×11.43 mm) surface mount package to ensure PCB compatibility
Voltage Supply Ranges: Must support both 2.7V–3.6V and 4.5V–5.5V supply ranges
Access Time: Substitute parts with equal or faster access times are functionally compatible

The AT27BV010-90JU qualifies as a direct substitute based on these parameters. It maintains identical memory capacity, organization, interface type, and package specifications while offering improved access time (90 ns vs. 150 ns) and extended operating temperature range.

Parameter Comparison

Parameter	AT27BV010-15JC (Main Part)	AT27BV010-90JU (Substitute)
Manufacturer	Microchip Technology	Microchip Technology
Memory Type	EPROM – OTP	EPROM – OTP
Memory Size	1Mbit	1Mbit
Memory Organization	128K × 8	128K × 8
Memory Interface	Parallel	Parallel
Access Time	150 ns	90 ns
Voltage Supply	2.7V–3.6V, 4.5V–5.5V	2.7V–3.6V, 4.5V–5.5V
Operating Temperature	0°C–70°C	–40°C–85°C
Package Type	32-PLCC (13.97×11.43 mm)	32-PLCC (13.97×11.43 mm)
Mounting Type	Surface Mount	Surface Mount
Product Status	Obsolete	Active
RoHS Status	Non-compliant	ROHS3 Compliant
MSL Rating	2 (1 Year)	2 (1 Year)

Engineering Selection Recommendations

The AT27BV010-90JU is the recommended substitute for the obsolete AT27BV010-15JC. Selection is based on the following factors:

Product Status: The AT27BV010-90JU is active and currently manufactured, ensuring long-term availability and supply chain continuity
Functional Compatibility: Identical memory capacity, organization, interface, and package specifications ensure direct replacement capability
Performance Enhancement: The 90 ns access time provides faster operation compared to the original 150 ns specification, with no negative impact on system integration
Compliance Improvement: The AT27BV010-90JU meets ROHS3 compliance requirements, whereas the original part is non-compliant
Temperature Range Extension: The substitute supports an extended operating temperature range (–40°C–85°C vs. 0°C–70°C), providing greater flexibility for diverse application environments
Regulatory Alignment: Both parts maintain identical REACH and ECCN classifications, ensuring regulatory consistency

Frequently Asked Questions (FAQ)

Q: Can the AT27BV010-90JU be used as a direct replacement for the AT27BV010-15JC?

A: Yes. Both parts share identical memory capacity (1Mbit), organization (128K × 8), parallel interface, and 32-PLCC package specifications. The substitute operates at the same voltage supply ranges and maintains full pin compatibility.

Q: What is the difference in access time between these parts?

A: The AT27BV010-15JC has a 150 ns access time, while the AT27BV010-90JU has a 90 ns access time. The faster access time of the substitute part does not create compatibility issues and may improve system performance.

Q: Are there packaging differences between these parts?

A: No. Both parts use the 32-PLCC (13.97×11.43 mm) surface mount package with identical pinout and footprint specifications.

Q: Does the substitute part support the same voltage ranges?

A: Yes. The AT27BV010-90JU supports both 2.7V–3.6V and 4.5V–5.5V supply ranges, matching the original part's voltage specifications.

Q: What is the operating temperature range for the substitute part?

A: The AT27BV010-90JU operates from –40°C to 85°C, which is broader than the original part's 0°C–70°C range. This extended range provides greater application flexibility.

Q: Is the substitute part RoHS compliant?

A: Yes. The AT27BV010-90JU is ROHS3 compliant, whereas the original AT27BV010-15JC is non-compliant. This compliance improvement may be required for new designs or regulatory requirements.

Q: Are there any differences in moisture sensitivity?

A: No. Both parts carry an MSL rating of 2 (1 Year), indicating identical moisture sensitivity specifications.

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