ATSAM4CMS16CB-AUR Equivalent & Substitute Parts

Part Overview

The ATSAM4CMS16CB-AUR is a 32-bit dual-core ARM Cortex-M4/M4F microcontroller from Microchip Technology's SAM4CM series, featuring 1MB of FLASH memory, 128KB of RAM, and 57 I/O pins in a 100-LQFP package. The device operates at 120MHz with integrated connectivity options including SPI, UART/USART, I2C, and IrDA, along with peripherals such as DMA, PWM, LCD controller, and watchdog timer.

This part is currently listed as obsolete. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain flexibility, and support long-term product availability for applications requiring SAM4CM series microcontrollers with identical electrical and mechanical specifications.

Substiute Parts

ATSAM4CMS16CB-AUR

Microchip TechnologyIn Stock: 1155ATSAM4CMS16CB-AUR Datasheet

Current PartRFQ

ATSAM4CMS16CC-AUR

Microchip TechnologyIn Stock: 1008ATSAM4CMS16CC-AUR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ATSAM4CMS16CB-AUR is determined by strict equivalence across the following critical parameters:

• Manufacturer and series (Microchip Technology SAM4CM)
• Core processor architecture (ARM Cortex-M4/M4F)
• Core configuration (32-bit dual-core)
• Operating frequency (120MHz)
• Memory configuration (1MB FLASH, 128KB RAM)
• I/O pin count (57)
• Package type and dimensions (100-LQFP 14x14)
• Supply voltage range (1.62V ~ 3.6V)
• Operating temperature range (-40°C ~ 85°C)
• Compliance certifications (ROHS3, REACH Unaffected)

The ATSAM4CMS16CC-AUR meets all substitution criteria as a direct equivalent part within the SAM4CM microcontroller family.

Parameter Comparison

Engineering Selection Recommendations

The ATSAM4CMS16CC-AUR is a direct functional equivalent to the ATSAM4CMS16CB-AUR. Both parts share identical electrical specifications, memory configuration, I/O architecture, and package dimensions. The primary distinction is product lifecycle status: the ATSAM4CMS16CB-AUR is obsolete, while the ATSAM4CMS16CC-AUR maintains active production status.

For new designs or ongoing production requiring SAM4CM microcontrollers with these specifications, the ATSAM4CMS16CC-AUR is the appropriate selection. Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment. The identical moisture sensitivity level (MSL 3) and operating temperature range support equivalent reliability profiles across thermal and environmental conditions.

Frequently Asked Questions (FAQ)

Q: Can the ATSAM4CMS16CC-AUR be used as a direct replacement for the ATSAM4CMS16CB-AUR?

A: Yes. Both parts are electrically and mechanically identical. They share the same core processor, memory configuration, I/O count, package type, and operating specifications. The ATSAM4CMS16CC-AUR is the active production equivalent.

Q: Are there any differences in pin configuration or package dimensions?

A: No. Both parts use the 100-LQFP (14x14) package with 57 I/O pins. Pin assignments and package dimensions are identical.

Q: What is the significance of the product status difference?

A: The ATSAM4CMS16CB-AUR is obsolete and no longer manufactured. The ATSAM4CMS16CC-AUR is in active production, ensuring long-term availability and supply chain continuity.

Q: Are compliance certifications equivalent between these parts?

A: Yes. Both parts are ROHS3 compliant and REACH unaffected. Moisture sensitivity levels and operating temperature ranges are identical.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes. No PCB layout modifications are required. The identical package type, pin count, and pin assignments support direct substitution.