ATSAM4CMP16CB-AU Equivalent & Substitute Parts

Part Overview

The ATSAM4CMP16CB-AU is a 32-bit dual-core ARM Cortex-M4/M4F microcontroller from Microchip Technology's SAM4CM series, featuring 1MB FLASH memory, 128KB RAM, and 120MHz operation. This device is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support, production continuity, and component sourcing.

Substiute Parts

ATSAM4CMP16CB-AU

Microchip TechnologyIn Stock: 1022ATSAM4CMP16CB-AU Datasheet

Current PartRFQ

ATSAM4CMP16CC-AU

Microchip TechnologyIn Stock: 1012ATSAM4CMP16CC-AU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ATSAM4CMP16CB-AU is determined by strict equivalence across the following critical parameters:

• Manufacturer and Series: Microchip Technology SAM4CM
• Core Architecture: ARM Cortex-M4/M4F 32-bit dual-core
• Operating Frequency: 120MHz
• Memory Configuration: 1MB FLASH, 128KB RAM
• Package Type: 100-LQFP (14x14)
• Voltage Supply Range: 1.62V ~ 3.6V
• Operating Temperature Range: -40°C ~ 85°C
• I/O Count: 52 pins
• Connectivity and Peripheral Set: EBI/EMI, I2C, IrDA, SPI, UART/USART, Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT
• Data Converter Specification: A/D 6x10b
• Compliance Standards: ROHS3, MSL 3

The ATSAM4CMP16CC-AU qualifies as a direct substitute based on identical electrical specifications, memory configuration, package footprint, and peripheral integration. The primary distinction is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The ATSAM4CMP16CC-AU is a direct functional equivalent to the ATSAM4CMP16CB-AU. All electrical parameters, memory specifications, pin configuration, and peripheral integration are identical. The substitute part maintains full ROHS3 compliance and identical moisture sensitivity classification.

The primary advantage of selecting ATSAM4CMP16CC-AU is its active product status with Microchip Technology, ensuring continued availability, technical support, and supply chain stability. The original ATSAM4CMP16CB-AU, classified as obsolete, presents long-term sourcing risk and reduced manufacturer support.

Both parts are suitable for direct PCB footprint replacement without design modification, as they share identical 100-LQFP (14x14) package geometry and pin assignments.

Frequently Asked Questions (FAQ)

Q: Can ATSAM4CMP16CC-AU replace ATSAM4CMP16CB-AU in existing designs?

A: Yes. The parts are electrically and mechanically equivalent. Pin configuration, memory capacity, operating frequency, voltage requirements, and peripheral functionality are identical. Direct substitution on the PCB is possible without design changes.

Q: What is the difference between these two part numbers?

A: The primary differences are product lifecycle status and packaging format. ATSAM4CMP16CB-AU is obsolete; ATSAM4CMP16CC-AU is active. ATSAM4CMP16CC-AU is supplied in Tray packaging. Both parts are functionally identical.

Q: Are there any compatibility concerns with the 100-LQFP package?

A: No. Both parts use the identical 100-LQFP (14x14) package with 52 I/O pins. PCB footprints, solder pad layouts, and thermal characteristics are equivalent.

Q: Does the substitute part meet the same compliance standards?

A: Yes. ATSAM4CMP16CC-AU maintains ROHS3 compliance and MSL 3 (168 Hours) rating, matching the original part specifications.

Q: Why should I transition from ATSAM4CMP16CB-AU to ATSAM4CMP16CC-AU?

A: The obsolete status of ATSAM4CMP16CB-AU creates supply uncertainty and limits access to manufacturer technical resources. ATSAM4CMP16CC-AU, being active, provides assured availability and ongoing support from Microchip Technology.