ATSAM4E8EB-CN Equivalent & Substitute Parts

Part Overview

The ATSAM4E8EB-CN is an ARM Cortex-M4 32-bit microcontroller manufactured by Microchip Technology, featuring 512KB FLASH memory and 128KB RAM in a 144-LFBGA package. This device is actively produced and widely used in embedded applications requiring integrated connectivity options including CANbus, Ethernet, USB, and multiple serial interfaces. Substitute parts are identified when equivalent functional specifications and electrical parameters are required due to inventory constraints, design optimization, or application-specific requirements.

Substiute Parts

ATSAM4E8EB-CN

Microchip TechnologyIn Stock: 1495ATSAM4E8EB-CN Datasheet

Current PartRFQ

STM32F446ZEH6

STMicroelectronicsIn Stock: 51272STM32F446ZEH6 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ATSAM4E8EB-CN is determined by the following critical parameters:

• Core processor architecture (ARM Cortex-M4)
• Memory configuration (512KB FLASH, 128KB RAM minimum)
• 32-bit single-core processing capability
• Pin count and I/O availability (114+ I/O pins)
• Supply voltage compatibility (overlapping operating ranges)
• Package form factor (144-pin BGA)
• Active product status and compliance certifications

The STM32F446ZEH6 qualifies as a substitute based on matching core architecture, memory specifications, pin count, and BGA package format. Both devices maintain ARM Cortex-M4 processing capability with identical FLASH and RAM configurations, enabling functional equivalence in applications where the specified parameters are the primary selection criteria.

Parameter Comparison

Engineering Selection Recommendations

Both the ATSAM4E8EB-CN and STM32F446ZEH6 are active products with ROHS3 compliance and equivalent moisture sensitivity ratings. Selection between these devices should be based on the following provided specifications:

• Memory requirements are identical (512KB FLASH, 128KB RAM), supporting direct functional substitution
• Operating temperature range differs: ATSAM4E8EB-CN supports -40°C to 105°C, while STM32F446ZEH6 supports -40°C to 85°C
• Processing speed differs: STM32F446ZEH6 operates at 180MHz versus 120MHz for ATSAM4E8EB-CN
• I/O pin count: ATSAM4E8EB-CN provides 117 I/O pins; STM32F446ZEH6 provides 114 I/O pins
• Package footprint differs: ATSAM4E8EB-CN uses 144-LFBGA (10x10); STM32F446ZEH6 uses 144-UFBGA (7x7)

Both devices maintain REACH compliance and equivalent electrical certifications.

Frequently Asked Questions (FAQ)

Q: Can STM32F446ZEH6 directly replace ATSAM4E8EB-CN in existing designs?

A: Direct replacement requires evaluation of three factors: operating temperature requirements (STM32F446ZEH6 maximum 85°C versus ATSAM4E8EB-CN maximum 105°C), I/O pin utilization (3-pin difference), and package footprint compatibility (different BGA dimensions: 10x10 versus 7x7).

Q: Are the memory specifications identical between these devices?

A: Yes. Both devices feature 512KB FLASH memory and 128KB RAM, providing equivalent memory capacity for application code and data storage.

Q: What are the voltage supply differences?

A: ATSAM4E8EB-CN operates from 1.62V to 3.6V; STM32F446ZEH6 operates from 1.7V to 3.6V. The STM32F446ZEH6 has a slightly higher minimum voltage requirement.

Q: How do the processing speeds compare?

A: STM32F446ZEH6 operates at 180MHz, providing 50% higher clock speed than ATSAM4E8EB-CN at 120MHz. This difference may impact power consumption and thermal characteristics.

Q: Are both devices suitable for industrial temperature applications?

A: ATSAM4E8EB-CN supports the full industrial range (-40°C to 105°C). STM32F446ZEH6 supports -40°C to 85°C, limiting its use in high-temperature environments above 85°C.

Q: What is the significance of the different BGA package dimensions?

A: ATSAM4E8EB-CN uses 144-LFBGA (10x10mm), while STM32F446ZEH6 uses 144-UFBGA (7x7mm). The smaller footprint of the STM32F446ZEH6 may provide PCB layout advantages but requires design re-evaluation for pin placement and routing.