ATSAM4E8EA-CUR Equivalent & Substitute Parts

Part Overview

The ATSAM4E8EA-CUR is an ARM Cortex-M4 32-bit microcontroller manufactured by Microchip Technology, operating at 120MHz with 512KB FLASH memory and 128KB RAM. This device is designed for embedded applications requiring advanced connectivity options including CANbus, Ethernet, USB, and multiple serial interfaces. The part is currently in active production status and is ROHS3 compliant. Identifying equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate packaging or operational temperature requirements specific to application needs.

Substiute Parts

ATSAM4E8EA-CUR

Microchip TechnologyIn Stock: 2171ATSAM4E8EA-CUR Datasheet

Current PartRFQ

ATSAM4E8EB-CNR

Microchip TechnologyIn Stock: 2843ATSAM4E8EB-CNR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATSAM4E8EA-CUR is determined by strict equivalence across the following critical parameters:

• Identical manufacturer (Microchip Technology)
• Identical series designation (SAM4E)
• Identical core processor architecture (ARM Cortex-M4)
• Identical core size (32-Bit Single-Core)
• Identical operating frequency (120MHz)
• Identical program memory capacity (512KB FLASH)
• Identical RAM capacity (128K x 8)
• Identical supply voltage range (1.62V ~ 3.6V)
• Identical package type (144-LFBGA 10x10)
• Identical connectivity and peripheral feature set
• Active product status with current manufacturing support

The ATSAM4E8EB-CNR qualifies as a direct substitute based on these parameters. Differences in packaging format (Tape & Reel versus standard packaging) and operating temperature range do not affect functional equivalence for applications within the overlapping temperature specification.

Parameter Comparison

Engineering Selection Recommendations

The ATSAM4E8EB-CNR is a direct functional equivalent to the ATSAM4E8EA-CUR. Both parts maintain identical electrical specifications, memory configurations, peripheral feature sets, and package geometry. Selection between these parts should be based on the following criteria:

Packaging and Supply Chain Considerations: The ATSAM4E8EB-CNR is supplied in Tape & Reel format, which is standard for high-volume manufacturing and automated assembly processes. The ATSAM4E8EA-CUR uses standard packaging. Choose based on your assembly process requirements and procurement volume.

Operating Temperature Range: The ATSAM4E8EB-CNR supports an extended operating temperature range of -40°C to 105°C, compared to -40°C to 85°C for the ATSAM4E8EA-CUR. For applications requiring operation above 85°C, the ATSAM4E8EB-CNR is the appropriate selection.

Compliance and Certification: Both parts are ROHS3 compliant, REACH unaffected, and carry identical MSL ratings. Both maintain active product status with current manufacturing support from Microchip Technology.

Inventory and Availability: Selection may also be influenced by current inventory levels and lead times specific to your supply chain.

Frequently Asked Questions (FAQ)

Q: Can the ATSAM4E8EB-CNR be used as a direct replacement for the ATSAM4E8EA-CUR in existing designs?

A: Yes. The ATSAM4E8EB-CNR is functionally equivalent across all electrical and mechanical parameters. Pin configuration, memory capacity, operating frequency, connectivity options, and peripheral features are identical. The primary differences are packaging format and operating temperature range, neither of which affects functional compatibility for applications operating within the overlapping temperature specification of -40°C to 85°C.

Q: What is the difference between the packaging formats?

A: The ATSAM4E8EA-CUR uses standard packaging, while the ATSAM4E8EB-CNR is supplied in Tape & Reel (TR) format. Tape & Reel packaging is optimized for automated pick-and-place assembly and is standard for high-volume production. Standard packaging is typically used for lower-volume applications or manual assembly processes. Both formats contain identical die and provide identical electrical performance.

Q: Why does the ATSAM4E8EB-CNR have a higher maximum operating temperature?

A: The extended temperature range of -40°C to 105°C on the ATSAM4E8EB-CNR represents a qualified specification for that specific part number variant. This does not indicate a different die or internal design; rather, it reflects Microchip's qualification and testing for that particular part designation. Applications requiring operation above 85°C should specify the ATSAM4E8EB-CNR.

Q: Are there any differences in connectivity or peripheral features between these parts?

A: No. Both parts include identical connectivity options (CANbus, EBI/EMI, Ethernet, IrDA, SD, SPI, UART/USART, USB) and peripheral features (Brown-out Detect/Reset, DMA, POR, PWM, WDT). The 117 I/O pins are identically configured on both parts.

Q: Do both parts have the same RoHS and REACH compliance status?

A: Yes. Both the ATSAM4E8EA-CUR and ATSAM4E8EB-CNR are ROHS3 compliant and REACH unaffected. Both carry identical MSL ratings of 3 (168 Hours) and are manufactured to the same environmental and regulatory standards.

Q: Which part should I select for a new design?

A: For new designs, selection should be based on your manufacturing process and environmental requirements. If your assembly process uses automated pick-and-place equipment, the ATSAM4E8EB-CNR in Tape & Reel format is the standard choice. If your application requires operation above 85°C, the ATSAM4E8EB-CNR is required. Both parts are in active production with current manufacturing support.