C8051F020 Equivalent & Substitute Parts

Part Overview

The C8051F020 is an 8-bit microcontroller from Silicon Labs' C8051F02x series, featuring a 25MHz 8051 core with 64KB FLASH program memory, 4.25K x 8 RAM, and integrated analog/digital conversion capabilities. The device is classified as Obsolete, making substitute parts necessary for ongoing production and maintenance applications. The primary substitute maintains identical core functionality while offering improved compliance status.

Substiute Parts

C8051F020

Silicon LabsIn Stock: 3006C8051F020 Datasheet

Current PartRFQ

C8051F020-GQ

Silicon LabsIn Stock: 1235C8051F020-GQ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The C8051F020-GQ qualifies as a direct substitute based on the following criteria:

Identical Electrical Parameters:

• Core processor architecture (8051)
• Core size (8-Bit)
• Operating frequency (25MHz)
• Program memory capacity and type (64KB FLASH)
• RAM capacity (4.25K x 8)
• Supply voltage range (2.7V ~ 3.6V)
• Data converter specifications (A/D 8x8b, 8x12b; D/A 2x12b)
• I/O count (64 pins)
• Connectivity interfaces (EBI/EMI, SMBus, SPI, UART/USART)
• Peripheral feature set (Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT)
• Operating temperature range (-40°C ~ 85°C)

Identical Mechanical Parameters:

• Package type (100-TQFP)
• Package dimensions (14x14)
• Mounting type (Surface Mount)
• Moisture sensitivity level (MSL 3, 168 Hours)

Parameter Comparison

Engineering Selection Recommendations

The C8051F020-GQ is the direct functional equivalent of the C8051F020. Selection between these parts should be based on compliance and product lifecycle status:

C8051F020-GQ is preferred for:

• New designs requiring RoHS3 compliance
• Applications requiring REACH compliance documentation
• Production environments where component lifecycle status impacts supply chain planning

C8051F020 considerations:

• Classified as Obsolete; availability is limited to existing inventory
• RoHS non-compliant status may restrict use in regulated markets
• Suitable only for legacy system maintenance where compliance exemptions apply

Both parts are electrically and mechanically identical, ensuring direct substitution without circuit redesign or board layout modification.

Frequently Asked Questions (FAQ)

Q: Can C8051F020-GQ replace C8051F020 in existing designs? A: Yes. The C8051F020-GQ is a direct substitute with identical electrical and mechanical specifications. No circuit modifications or PCB layout changes are required.

Q: What is the difference between C8051F020 and C8051F020-GQ? A: The primary differences are product status and compliance certifications. C8051F020-GQ is RoHS3 compliant and REACH unaffected, while C8051F020 is RoHS non-compliant. Both devices have identical core functionality, memory configuration, and pin assignments.

Q: Why is C8051F020 marked as Obsolete? A: The C8051F020 has reached end-of-life status from Silicon Labs. The C8051F020-GQ represents the current equivalent part for this microcontroller family.

Q: Are there any package differences between these parts? A: Both parts use the 100-TQFP (14x14) package. The C8051F020-GQ is supplied in Tray packaging, while the C8051F020 packaging format is not specified.

Q: Can I use C8051F020-GQ in applications requiring RoHS compliance? A: Yes. C8051F020-GQ is RoHS3 compliant and suitable for applications with RoHS requirements.

Q: What is the moisture sensitivity level for these parts? A: Both parts have MSL 3 rating with a 168-hour floor life. Standard moisture control procedures during storage and handling apply.