DS80C323-MCD Equivalent & Substitute Parts

Part Overview

The DS80C323-MCD is an 8051-based 8-bit microcontroller IC manufactured by Analog Devices Inc./Maxim Integrated. This ROMless device operates at 18MHz with a 40-PDIP through-hole package and is designed for embedded applications requiring external program memory. The part is currently classified as obsolete, making identification of compatible substitutes essential for ongoing system support and component procurement.

Substiute Parts

DS80C323-MCD

Analog Devices Inc./Maxim IntegratedIn Stock: 1175DS80C323-MCD Datasheet

Current PartRFQ

DS80C323-MCD+

Analog Devices Inc./Maxim IntegratedIn Stock: 2073DS80C323-MCD+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DS80C323-MCD is determined by strict equivalence across the following critical parameters:

• Core processor architecture (8051)
• Core size (8-Bit)
• Operating frequency (18MHz)
• Program memory configuration (ROMless)
• Internal RAM capacity (256 x 8)
• Supply voltage range (2.7V ~ 5.5V)
• I/O pin count (32)
• Connectivity interfaces (EBI/EMI, SIO, UART/USART)
• Peripheral features (Power-Fail Reset, WDT)
• Operating temperature range (0°C ~ 70°C)
• Physical package (40-DIP)
• Through-hole mounting compatibility

The DS80C323-MCD+ qualifies as a direct substitute based on complete parameter alignment across all electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The DS80C323-MCD+ is the direct functional equivalent of the DS80C323-MCD. Both parts share identical electrical specifications, pin configurations, and operational characteristics. The primary distinction is product lifecycle status: the original DS80C323-MCD is obsolete, while the DS80C323-MCD+ maintains active production status.

The DS80C323-MCD+ additionally provides ROHS3 compliance, whereas the original part is RoHS non-compliant. This compliance improvement aligns with current environmental and regulatory standards for component procurement. Both parts maintain REACH Unaffected status and EAR99 export classification.

For new designs or component replacement in existing systems, the DS80C323-MCD+ is the appropriate selection due to its active availability and regulatory compliance posture.

Frequently Asked Questions (FAQ)

Q: Can the DS80C323-MCD+ directly replace the DS80C323-MCD in existing circuit designs?

A: Yes. The DS80C323-MCD+ is electrically and mechanically identical to the DS80C323-MCD. Pin configuration, voltage requirements, operating frequency, I/O count, and package dimensions are equivalent. No circuit modifications are required.

Q: What is the difference between the DS80C323-MCD and DS80C323-MCD+?

A: The primary differences are product status and RoHS compliance. The DS80C323-MCD is obsolete and RoHS non-compliant. The DS80C323-MCD+ is in active production and ROHS3 compliant. All functional and electrical parameters are identical.

Q: Are there packaging differences between these parts?

A: Both parts use the 40-DIP (0.600", 15.24mm) through-hole package. The DS80C323-MCD+ is supplied in tube packaging, while the original part packaging is not specified. The physical package dimensions and pin layout are identical.

Q: Why is the DS80C323-MCD classified as obsolete?

A: The DS80C323-MCD has reached end-of-life status. The DS80C323-MCD+ represents the current production equivalent and is the recommended part for procurement.

Q: What are the key parameters that define substitution eligibility?

A: Substitution is based on equivalence across core processor (8051), core size (8-Bit), operating frequency (18MHz), ROMless memory architecture, 256 x 8 RAM, 2.7V–5.5V supply range, 32 I/O pins, EBI/EMI and UART/USART connectivity, integrated Power-Fail Reset and WDT, 0°C–70°C operating temperature, and 40-DIP through-hole package.