MR2A16ATS35C MRAM Memory IC Equivalent & Substitute Parts

Part Overview

The MR2A16ATS35C is a 4Mbit Magnetoresistive RAM (MRAM) memory IC manufactured by NXP USA Inc., featuring parallel interface architecture in a 44-TSOP II package. This non-volatile memory device operates at 3V to 3.6V supply voltage with 35 ns access time and 256K x 16 memory organization. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing system support and new production requirements.

Key Parameters

Parameter	Value
Memory Type	Non-Volatile MRAM
Memory Size	4Mbit
Memory Organization	256K x 16
Memory Interface	Parallel
Access Time	35 ns
Write Cycle Time	35 ns
Voltage Supply Range	3V to 3.6V
Package Type	44-TSOP (0.400", 10.16mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the MR2A16ATS35C is determined by strict equivalence across the following parameters: memory technology (MRAM), memory size (4Mbit), memory organization (256K x 16), parallel interface architecture, access time (35 ns), write cycle time (35 ns), supply voltage range (3V to 3.6V), package type (44-TSOP), and surface mount configuration. All substitute parts listed maintain these core electrical and mechanical specifications. Operating temperature range and moisture sensitivity level (MSL) vary among substitutes and are documented for application-specific selection. Packaging format (Tray vs. other configurations) and product status (Active vs. Obsolete) are provided for procurement planning.

Parameter Comparison

Parameter	MR2A16ATS35C (NXP)	MR2A16AYS35 (Everspin)	MR2A16ACYS35 (Everspin)	MR2A16AMYS35 (Everspin)	MR2A16AVYS35 (Everspin)
Manufacturer	NXP USA Inc.	Everspin Technologies Inc.	Everspin Technologies Inc.	Everspin Technologies Inc.	Everspin Technologies Inc.
Product Status	Obsolete	Active	Active	Active	Active
Memory Type	Non-Volatile MRAM	Non-Volatile MRAM	Non-Volatile MRAM	Non-Volatile MRAM	Non-Volatile MRAM
Memory Size	4Mbit	4Mbit	4Mbit	4Mbit	4Mbit
Memory Organization	256K x 16	256K x 16	256K x 16	256K x 16	256K x 16
Memory Interface	Parallel	Parallel	Parallel	Parallel	Parallel
Access Time	35 ns	35 ns	35 ns	35 ns	35 ns
Write Cycle Time	35 ns	35 ns	35 ns	35 ns	35 ns
Voltage Supply Range	3V to 3.6V	3V to 3.6V	3V to 3.6V	3V to 3.6V	3V to 3.6V
Operating Temperature Range	0°C to 70°C	0°C to 70°C	-40°C to 85°C	-40°C to 125°C	-40°C to 105°C
Package Type	44-TSOP II	44-TSOP2	44-TSOP2	44-TSOP2	44-TSOP2
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Moisture Sensitivity Level (MSL)	1 (Unlimited)	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Grade	Commercial	Commercial	Commercial	Automotive	Commercial
Qualification	Not specified	Not specified	Not specified	AEC-Q100	Not specified

Engineering Selection Recommendations

All four Everspin Technologies substitute parts (MR2A16AYS35, MR2A16ACYS35, MR2A16AMYS35, MR2A16AVYS35) are active products with ROHS3 compliance, providing long-term availability for replacement of the obsolete NXP MR2A16ATS35C.

MR2A16AYS35 maintains identical operating temperature range (0°C to 70°C) to the original part, providing direct thermal compatibility for applications with standard commercial temperature requirements.

MR2A16ACYS35 extends operating temperature range to -40°C to 85°C, suitable for applications requiring enhanced low-temperature performance.

MR2A16AMYS35 includes AEC-Q100 automotive qualification and operates across -40°C to 125°C, designated for automotive-grade applications requiring extended temperature performance and automotive supply chain compliance.

MR2A16AVYS35 provides -40°C to 105°C operating range for applications requiring extended temperature performance without automotive qualification.

All substitutes feature MSL 3 (168 Hours) moisture sensitivity, differing from the original part's MSL 1 rating. Packaging format is Tray for all active substitutes.

Frequently Asked Questions (FAQ)

Q: Are all listed substitute parts electrically equivalent to the MR2A16ATS35C?

A: Yes. All substitute parts maintain identical memory capacity (4Mbit), organization (256K x 16), parallel interface, access time (35 ns), write cycle time (35 ns), and supply voltage range (3V to 3.6V). Electrical functionality is equivalent across all listed alternatives.

Q: What is the primary difference between the substitute parts?

A: Operating temperature range and automotive qualification differ among substitutes. MR2A16AYS35 matches the original 0°C to 70°C range. MR2A16ACYS35, MR2A16AMYS35, and MR2A16AVYS35 provide extended low-temperature operation. MR2A16AMYS35 includes AEC-Q100 automotive qualification for automotive applications.

Q: Does the change from 44-TSOP II to 44-TSOP2 packaging affect compatibility?

A: Both package designations refer to 44-pin TSOP packages with 0.400" (10.16mm) width and surface mount configuration. Physical and electrical compatibility is maintained.

Q: How does the MSL 3 rating of substitutes differ from the original MSL 1?

A: MSL 1 indicates unlimited shelf life without moisture absorption concerns. MSL 3 specifies 168-hour moisture sensitivity, requiring controlled storage conditions. Component handling procedures must account for this difference during manufacturing and assembly.

Q: Which substitute part should be selected for automotive applications?

A: MR2A16AMYS35 is designated for automotive applications with AEC-Q100 qualification and -40°C to 125°C operating temperature range.

Q: Are all substitute parts available in active production status?

A: Yes. All four Everspin Technologies substitute parts are classified as active products, ensuring ongoing availability and supply chain continuity.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message