DS80C390-FCR+ Equivalent & Substitute Parts

Part Overview

The DS80C390-FCR+ is an 8051-based 8-bit microcontroller manufactured by Analog Devices Inc./Maxim Integrated. This ROMless embedded processor operates at 40MHz with integrated peripherals including CANbus connectivity, UART/USART interfaces, watchdog timer, and power-fail reset functionality. The device is housed in a 64-LQFP (10x10) surface mount package and supports a supply voltage range of 3.85V to 5.5V. Currently in active production status with ROHS3 compliance and REACH unaffected classification, this component remains available for new designs and production applications.

Substiute Parts

DS80C390-FCR+

Analog Devices Inc./Maxim IntegratedIn Stock: 1548DS80C390-FCR+ Datasheet

Current PartRFQ

DS80C390-FCR+

Analog Devices Inc./Maxim IntegratedIn Stock: 1548DS80C390-FCR+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DS80C390-FCR+ is determined by strict equivalence across the following critical parameters:

• Core Architecture: 8051-based processor with identical instruction set compatibility
• Memory Configuration: ROMless design with 4K x 8 RAM capacity
• Performance Specification: 40MHz clock speed
• Electrical Characteristics: 3.85V to 5.5V supply voltage range
• Interface Connectivity: CANbus, EBI/EMI, SIO, and UART/USART support
• Integrated Peripherals: Power-Fail Reset and Watchdog Timer functionality
• Package Format: 64-LQFP (10x10) surface mount configuration
• Compliance Standards: ROHS3 compliance and REACH unaffected status

Based on the provided input parameters, the DS80C390-FCR+ is identified as a direct equivalent to itself with no additional substitute parts specified in the substitute list.

Parameter Comparison

Engineering Selection Recommendations

The DS80C390-FCR+ maintains active product status with full ROHS3 compliance and REACH unaffected classification, confirming its suitability for current production applications. The device's 40MHz 8051 architecture with integrated CANbus and UART connectivity addresses embedded control applications requiring real-time processing and multi-protocol communication. The ROMless configuration with 4K x 8 RAM supports external program memory interfacing through the EBI/EMI bus, enabling flexible memory architecture design. Surface mount 64-LQFP packaging facilitates high-density PCB integration with standardized thermal and electrical characteristics.

Frequently Asked Questions (FAQ)

Q: What defines a valid substitute for the DS80C390-FCR+? A: A valid substitute must maintain identical specifications across core processor architecture (8051), clock speed (40MHz), memory configuration (ROMless with 4K x 8 RAM), supply voltage range (3.85V to 5.5V), connectivity interfaces (CANbus, EBI/EMI, SIO, UART/USART), integrated peripherals (Power-Fail Reset, WDT), and package format (64-LQFP 10x10).

Q: Can the DS80C390-FCR+ be used in applications requiring different operating temperatures? A: The DS80C390-FCR+ is specified for 0°C to 70°C operating temperature range. Applications requiring extended temperature ranges require alternative device selection outside this specification.

Q: What is the significance of the ROMless configuration? A: The ROMless design requires external program memory interfacing through the EBI/EMI bus. This configuration supports flexible memory architecture and allows program code storage in external ROM, FLASH, or other non-volatile memory devices selected for specific application requirements.

Q: Are there compatibility considerations for the 64-LQFP package? A: The 64-LQFP (10x10) package requires PCB footprints designed for 0.5mm lead pitch surface mount assembly. Pin count and lead spacing are fixed at 64 pins with 10mm x 10mm body dimensions. Package-compatible alternatives must maintain identical footprint geometry.

Q: What compliance certifications apply to the DS80C390-FCR+? A: The device carries ROHS3 compliance certification and REACH unaffected status, confirming compliance with European environmental and hazardous substance regulations applicable to electronic components.