DS80C320-MCG Equivalent & Substitute Parts

Part Overview

The DS80C320-MCG is an 8051-based 8-bit microcontroller IC manufactured by Analog Devices Inc./Maxim Integrated. This ROMless device operates at 25MHz with external oscillator support and is housed in a 40-PDIP package. The part is currently classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing system support and new designs requiring this microcontroller architecture.

Substiute Parts

DS80C320-MCG

Analog Devices Inc./Maxim IntegratedIn Stock: 3564DS80C320-MCG Datasheet

Current PartRFQ

DS80C320-MCG+

Analog Devices Inc./Maxim IntegratedIn Stock: 4137DS80C320-MCG+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

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

• Core processor architecture (8051)
• Core size (8-Bit)
• Operating frequency (25MHz)
• Memory configuration (ROMless, 256 x 8 RAM)
• Supply voltage range (4.5V ~ 5.5V)
• I/O count (32 pins)
• Connectivity interfaces (EBI/EMI, SIO, UART/USART)
• Peripheral features (Power-Fail Reset, WDT)
• Operating temperature range (0°C ~ 70°C)
• Physical package (40-DIP)

The DS80C320-MCG+ is identified as a direct substitute based on complete parameter alignment across all electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The DS80C320-MCG+ serves as the direct equivalent for the obsolete DS80C320-MCG. Both parts maintain identical electrical and mechanical specifications, ensuring pin-for-pin and functional compatibility. The primary distinction is product status and regulatory compliance: the DS80C320-MCG+ is currently in active production and meets ROHS3 compliance requirements, whereas the original DS80C320-MCG is obsolete and RoHS non-compliant. For new designs or system refreshes, the DS80C320-MCG+ is the appropriate selection. Both parts are manufactured by the same supplier and share the same base product number (DS80C320), confirming their interchangeability within the 80C series microcontroller line.

Frequently Asked Questions (FAQ)

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

A: Yes. The DS80C320-MCG+ is electrically and mechanically identical to the DS80C320-MCG. All pin assignments, voltage specifications, operating frequency, memory configuration, and peripheral features are equivalent. No circuit modifications are required.

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

A: The primary differences are product status and regulatory compliance. The DS80C320-MCG is obsolete and RoHS non-compliant. The DS80C320-MCG+ is in active production and ROHS3 compliant. Packaging differs slightly: the original uses standard packaging while the substitute is supplied in tube packaging.

Q: Are there any compatibility concerns with the 40-DIP package?

A: No. Both parts use the identical 40-DIP (0.600", 15.24mm) package. PCB footprints, socket compatibility, and mechanical mounting are fully interchangeable.

Q: What supply voltage range do these microcontrollers support?

A: Both the DS80C320-MCG and DS80C320-MCG+ operate within a 4.5V to 5.5V supply voltage range, supporting standard 5V logic systems.

Q: Is external oscillator configuration required for these devices?

A: Yes. Both parts require an external oscillator. The operating frequency is fixed at 25MHz, and no internal oscillator is provided.