DS80C320-ECG+ Equivalent & Substitute Parts

Part Overview

The DS80C320-ECG+ is an 8051-based 8-bit microcontroller manufactured by Analog Devices Inc./Maxim Integrated. This ROMless embedded processor operates at 25MHz with external oscillator support and is housed in a 44-TQFP surface mount package. The device is currently in active product status with ROHS3 compliance and full inventory availability. Substitute parts are identified based on matching core processor architecture, memory configuration, I/O count, voltage specifications, and package compatibility.

Substiute Parts

DS80C320-ECG+

Analog Devices Inc./Maxim IntegratedIn Stock: 1372DS80C320-ECG+ Datasheet

Current PartRFQ

DS80C320-ECG+

Analog Devices Inc./Maxim IntegratedIn Stock: 1372DS80C320-ECG+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DS80C320-ECG+ are determined by strict equivalence across the following critical parameters:

• Core processor architecture (8051-based)
• Core size (8-Bit)
• Operating frequency (25MHz)
• Memory configuration (ROMless, 256 x 8 RAM)
• I/O pin count (32)
• Supply voltage range (4.5V ~ 5.5V)
• Package type (44-TQFP surface mount)
• Operating temperature range (0°C ~ 70°C)

Only parts matching all these specifications are considered direct substitutes. Variations in any parameter disqualify a part from this equivalence group.

Parameter Comparison

Engineering Selection Recommendations

The DS80C320-ECG+ is an active product with full regulatory compliance (ROHS3, REACH Unaffected). Selection of substitute parts must maintain equivalence across all electrical and mechanical parameters listed in the Key Parameters section. The device's ROMless architecture requires external program memory integration, which must be preserved in any substitute selection. Compliance certifications (ROHS3, REACH status) should be verified for substitute parts to ensure regulatory alignment with the original specification.

Frequently Asked Questions (FAQ)

Q: What defines a valid substitute for the DS80C320-ECG+? A: A valid substitute must match all core parameters: 8051 processor, 8-bit architecture, 25MHz operation, ROMless configuration, 256 x 8 RAM, 32 I/O pins, 4.5V–5.5V supply voltage, 44-TQFP package, and 0°C–70°C operating temperature range.

Q: Can parts with different package types substitute for the DS80C320-ECG+? A: No. The 44-TQFP (10x10) surface mount package is a critical specification. Different package types are not interchangeable without PCB redesign.

Q: Are there speed variants of the DS80C320 that can substitute? A: Only the 25MHz variant meets the specification. Speed variants operating at different frequencies do not qualify as direct substitutes.

Q: What is the significance of the ROMless architecture? A: ROMless devices require external program memory. Substitutes must maintain this architecture to ensure compatibility with existing external memory interfaces and firmware loading mechanisms.

Q: How does the 256 x 8 RAM specification affect substitution? A: The internal RAM size directly impacts application memory capacity. Substitutes must provide identical RAM configuration to ensure software compatibility without modification.

Q: Is the 44-TQFP package the only option for this device? A: Based on the provided specifications, the 44-TQFP (10x10) is the specified package. Alternative packages would require separate evaluation and are not considered direct substitutes.