ATA6612P-PLPW Equivalent & Substitute Parts

Part Overview

The ATA6612P-PLPW is an 8-bit AVR microcontroller from Microchip Technology's ATA66 LIN-SBC series, designed for automotive applications requiring LIN bus communication. This device integrates 8KB of Flash program memory, 1KB of RAM, and 512 bytes of EEPROM, operating at 16MHz with a supply voltage range of 2.7V to 5.5V. The part is currently classified as obsolete, making identification of functional equivalents essential for ongoing system support and new design considerations where legacy compatibility is required.

Substiute Parts

ATA6612P-PLPW

Microchip TechnologyIn Stock: 1045ATA6612P-PLPW Datasheet

Current PartRFQ

ATA6612C-PLQW-1

Microchip TechnologyIn Stock: 6738ATA6612C-PLQW-1 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATA6612P-PLPW is determined by strict equivalence across the following critical parameters:

• Core Architecture & Processing: AVR 8-bit processor at 16MHz
• Memory Configuration: 8KB Flash, 1KB RAM, 512 bytes EEPROM
• Electrical Specifications: 2.7V to 5.5V supply voltage range, 8x10-bit A/D converters
• Connectivity & Peripherals: I2C, LINbus, SPI, UART/USART interfaces; Brown-out Detect/Reset, POR, PWM, WDT
• I/O Count: 23 I/O pins
• Package Compatibility: 48-VFQFN with exposed pad (7x7mm)
• Automotive Compliance: AEC-Q100 qualification, automotive grade
• Environmental Specifications: -40°C to 125°C operating temperature range

The ATA6612C-PLQW-1 meets all these criteria as a parametric equivalent, with the distinction that it includes Functional Safety (FuSa) enhancements and maintains active product status.

Parameter Comparison

Engineering Selection Recommendations

The ATA6612C-PLQW-1 is the direct parametric equivalent for the obsolete ATA6612P-PLPW. Both devices share identical core specifications, memory architecture, connectivity interfaces, and automotive qualifications. The primary distinction is product lifecycle status: the ATA6612P-PLPW is obsolete, while the ATA6612C-PLQW-1 maintains active production status with enhanced Functional Safety (FuSa) capabilities.

For applications requiring component replacement or new designs, the ATA6612C-PLQW-1 is the appropriate selection. The addition of Functional Safety features in the substitute part provides enhanced reliability for automotive safety-critical applications without compromising electrical or mechanical compatibility. Both parts maintain AEC-Q100 automotive qualification and identical operating parameters across voltage, temperature, and interface specifications.

The moisture sensitivity level differs between the two parts (MSL 2 versus MSL 3), reflecting different manufacturing or storage conditions. This distinction does not affect functional equivalence but should be considered in supply chain and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can the ATA6612C-PLQW-1 directly replace the ATA6612P-PLPW in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all functional parameters. They share the same 48-VFQFN package, pin configuration, memory specifications, and interface protocols. Direct substitution is supported without design modifications.

Q: What is the significance of the Functional Safety (FuSa) designation in the ATA6612C-PLQW-1?

A: The FuSa enhancement indicates additional safety-oriented features and qualification levels. This does not alter the core microcontroller functionality but provides additional assurance for safety-critical automotive applications. The base electrical and operational characteristics remain unchanged.

Q: Are there differences in supply voltage or operating temperature ranges?

A: No. Both the ATA6612P-PLPW and ATA6612C-PLQW-1 operate across identical voltage ranges (2.7V to 5.5V) and temperature ranges (-40°C to 125°C). They are fully compatible in these specifications.

Q: Why does the ATA6612C-PLQW-1 have a different moisture sensitivity level?

A: The MSL difference (2 versus 3) reflects manufacturing or storage protocol variations but does not affect functional performance. MSL 3 (168 hours) is more conservative than MSL 2 (1 year), requiring shorter shelf-life management. This is a supply chain consideration rather than a functional limitation.

Q: Is the 48-VFQFN package identical between both parts?

A: Yes. Both parts use the 48-VFQFN Exposed Pad package in 7x7mm form factor. Pin assignments, mechanical dimensions, and mounting requirements are identical.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the ATA6612P-PLPW and ATA6612C-PLQW-1 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for automotive applications.