DS80C320-MCL Equivalent & Substitute Parts

Part Overview

The DS80C320-MCL is an 8051-based 8-bit microcontroller IC manufactured by Analog Devices Inc./Maxim Integrated. This ROMless device operates at 33MHz with external oscillator support and integrates 256 x 8 bytes of RAM, 32 I/O pins, and standard 8051 peripherals including Power-Fail Reset and Watchdog Timer functionality. The part is packaged in a 40-PDIP through-hole configuration.

The DS80C320-MCL is classified as obsolete. Identifying equivalent substitute parts is necessary for ongoing system support, design updates, and procurement continuity when original inventory becomes unavailable.

Substiute Parts

DS80C320-MCL

Analog Devices Inc./Maxim IntegratedIn Stock: 1369DS80C320-MCL Datasheet

Current PartRFQ

DS80C320-MCL+

Analog Devices Inc./Maxim IntegratedIn Stock: 2074DS80C320-MCL+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DS80C320-MCL is determined by strict equivalence across the following critical parameters:

• Core Architecture: 8051-based processor
• Memory Configuration: ROMless design with 256 x 8 RAM
• Performance: 33MHz operation speed
• I/O Count: 32 I/O pins
• Electrical Specifications: 4.5V ~ 5.5V supply voltage, 0°C ~ 70°C operating range
• Physical Form Factor: 40-DIP through-hole package
• Functional Peripherals: Power-Fail Reset and Watchdog Timer
• Interface Standards: EBI/EMI, SIO, UART/USART connectivity

The DS80C320-MCL+ meets all substitution criteria as a direct equivalent part with identical electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The DS80C320-MCL+ is a direct functional equivalent to the DS80C320-MCL. Both parts share identical electrical characteristics, memory configuration, I/O architecture, and physical packaging.

The primary distinction between these parts is product lifecycle status and regulatory compliance. The DS80C320-MCL is classified as obsolete, while the DS80C320-MCL+ maintains active product status. The DS80C320-MCL+ additionally meets ROHS3 compliance requirements, whereas the original DS80C320-MCL is RoHS non-compliant.

For new designs or system updates requiring continued support, the DS80C320-MCL+ is the appropriate selection. For legacy system maintenance where original part specifications must be preserved, the DS80C320-MCL remains functionally interchangeable where inventory permits.

Frequently Asked Questions (FAQ)

Q: Can the DS80C320-MCL+ be used as a direct replacement for the DS80C320-MCL?

A: Yes. Both parts are electrically and mechanically identical. They share the same 8051 core architecture, 33MHz speed, 256 x 8 RAM configuration, 32 I/O pins, 40-DIP package, and peripheral set. No circuit modifications are required for substitution.

Q: What is the difference between DS80C320-MCL and DS80C320-MCL+?

A: The primary differences are product status and compliance certification. The DS80C320-MCL is obsolete and RoHS non-compliant. The DS80C320-MCL+ is an active product that meets ROHS3 compliance standards. Functionally and electrically, both parts are equivalent.

Q: Are there any packaging differences between these parts?

A: Both parts use the same 40-DIP (0.600", 15.24mm) through-hole package. The DS80C320-MCL+ is supplied in tube packaging, while the original part's packaging specification is not detailed. This does not affect electrical or mechanical compatibility.

Q: What parameters must match for a part to be considered a substitute for the DS80C320-MCL?

A: A substitute must maintain equivalence in core processor type (8051), memory configuration (ROMless, 256 x 8 RAM), operating speed (33MHz), I/O count (32 pins), supply voltage range (4.5V ~ 5.5V), operating temperature range (0°C ~ 70°C), physical package (40-DIP), and peripheral functionality (Power-Fail Reset, Watchdog Timer).

Q: Is the DS80C320-MCL+ suitable for new designs?

A: Yes. The DS80C320-MCL+ is an active product with ROHS3 compliance, making it appropriate for new system development and long-term production support.