ATSAM4CMP8CA-AUR Equivalent & Substitute Parts

Part Overview

The ATSAM4CMP8CA-AUR is a 32-bit dual-core ARM Cortex-M4/M4F microcontroller from Microchip Technology's SAM4CM series, featuring 512KB FLASH memory, 128KB RAM, and operation at 120MHz. The device integrates comprehensive connectivity options including EBI/EMI, I2C, IrDA, SPI, and UART/USART interfaces, along with peripheral functions such as DMA, LCD controller, PWM, and watchdog timer. With a product status of Obsolete, identifying equivalent substitute parts is necessary to ensure design continuity and component availability for new production runs and system updates.

Substiute Parts

ATSAM4CMP8CA-AUR

Microchip TechnologyIn Stock: 765ATSAM4CMP8CA-AUR Datasheet

Current PartRFQ

ATSAM4CMP8CC-AUR

Microchip TechnologyIn Stock: 1020ATSAM4CMP8CC-AUR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATSAM4CMP8CA-AUR is determined by strict equivalence across the following critical parameters:

• Processor Architecture: ARM Cortex-M4/M4F dual-core configuration
• Memory Configuration: 512KB FLASH and 128KB RAM
• Operating Frequency: 120MHz
• Package Format: 100-LQFP (14x14) surface mount
• Electrical Specifications: 1.62V ~ 3.6V supply voltage range
• I/O Count: 52 I/O pins
• Connectivity & Peripherals: EBI/EMI, I2C, IrDA, SPI, UART/USART, DMA, LCD, PWM, WDT, Brown-out Detect/Reset, POR
• Environmental Compliance: ROHS3 Compliant, MSL 3 (168 Hours)

The ATSAM4CMP8CC-AUR meets all these criteria and is classified as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The ATSAM4CMP8CC-AUR is the direct substitute for the ATSAM4CMP8CA-AUR. Both parts are electrically and functionally identical across all specified parameters. The primary distinction is product status: the original part is Obsolete, while the substitute is Active, ensuring ongoing availability and manufacturing support from Microchip Technology.

Both parts maintain identical compliance certifications including ROHS3 and REACH Unaffected status. The packaging difference (Cut Tape & Digi-Reel versus Tape & Reel) reflects standard distribution formats and does not affect component functionality or performance.

For new designs or production transitions, the ATSAM4CMP8CC-AUR is the recommended selection due to its Active product status and guaranteed long-term availability.

Frequently Asked Questions (FAQ)

Q: Are the ATSAM4CMP8CA-AUR and ATSAM4CMP8CC-AUR pin-compatible?

A: Yes. Both parts use the 100-LQFP (14x14) package with identical pin assignments and electrical characteristics. PCB layouts and schematics require no modification for substitution.

Q: What is the difference between Cut Tape & Digi-Reel and Tape & Reel packaging?

A: Both are surface mount tape formats suitable for automated assembly. Cut Tape & Digi-Reel is typically used for smaller quantities or mixed component orders, while Tape & Reel is standard for high-volume production runs. The component itself is identical.

Q: Can I use the ATSAM4CMP8CC-AUR as a direct replacement in existing designs?

A: Yes. The substitute part meets all electrical, mechanical, and environmental specifications of the original part. No design changes are required.

Q: Why is the original part marked as Obsolete?

A: Product obsolescence is determined by the manufacturer based on market demand and product lifecycle management. The Active substitute ensures design continuity without functional compromise.

Q: Are there any firmware or software compatibility concerns?

A: No. Both parts are from the same SAM4CM series with identical processor architecture, memory configuration, and peripheral set. Existing firmware and software require no modification.

Q: What is the significance of MSL 3 (168 Hours) rating?

A: This Moisture Sensitivity Level indicates the component can be exposed to ambient conditions (30°C, 60% relative humidity) for up to 168 hours before soldering. Standard handling and storage procedures apply to both parts identically.