C8051F352 Equivalent & Substitute Parts

Part Overview

The C8051F352 is an 8-bit microcontroller from Silicon Labs' C8051F35x series, featuring a 50MHz 8051 core with 8KB Flash program memory and integrated peripherals including SMBus, SPI, and UART connectivity. The main part number (C8051F352) is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The C8051F352-GQ provides a direct functional equivalent with improved product status and compliance certifications.

Substiute Parts

C8051F352

Silicon LabsIn Stock: 865C8051F352 Datasheet

Current PartRFQ

C8051F352-GQ

Silicon LabsIn Stock: 1403C8051F352-GQ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The C8051F352-GQ qualifies as a direct substitute based on identical electrical and mechanical parameters. Substitution criteria are determined by the following parameters:

• Core processor architecture (8051)
• Core size (8-Bit)
• Operating frequency (50MHz)
• Program memory capacity and type (8KB FLASH)
• RAM capacity (768 x 8)
• Supply voltage range (2.7V ~ 3.6V)
• Data converter specifications (A/D 8x16b; D/A 2x8b)
• I/O count (17 pins)
• Connectivity interfaces (SMBus, SPI, UART/USART)
• Peripheral set (POR, PWM, Temp Sensor, WDT)
• Operating temperature range (-40°C ~ 85°C)
• Package form factor (32-LQFP 7x7)

The C8051F352-GQ maintains 100% compatibility across all specified electrical and mechanical parameters, differing only in product status, packaging format, and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The C8051F352-GQ is the appropriate selection for new designs and production applications. The original C8051F352 is classified as obsolete, limiting availability and support. The C8051F352-GQ maintains identical electrical and mechanical specifications while offering:

• Active product status with ongoing manufacturer support
• ROHS3 compliance certification
• REACH compliance status (unaffected)
• Tray packaging format for production environments
• Verified programmability through DiGi-Electronics

Both parts share the same base product number (C8051F352) and are functionally interchangeable at the circuit level. Selection between them should be based on product lifecycle requirements and regulatory compliance mandates for the target application.

Frequently Asked Questions (FAQ)

Q: Are C8051F352 and C8051F352-GQ electrically identical?

A: Yes. Both parts feature identical core processor architecture, clock speed, memory configuration, I/O count, connectivity interfaces, and peripheral sets. Electrical performance and functional behavior are equivalent.

Q: Can C8051F352-GQ replace C8051F352 in existing designs?

A: Yes. The C8051F352-GQ is a direct substitute with identical package form factor (32-LQFP 7x7), pinout, and electrical specifications. No circuit modifications are required.

Q: What is the primary difference between these parts?

A: The main differences are product status (obsolete vs. active), compliance certifications (RoHS and REACH), and packaging format (unspecified vs. tray). Electrical and mechanical specifications are identical.

Q: Does the C8051F352-GQ require different PCB layout or design considerations?

A: No. The identical 32-LQFP (7x7) package and electrical specifications mean existing PCB designs require no modification.

Q: Why is the original C8051F352 marked as obsolete?

A: Product obsolescence is determined by the manufacturer. The C8051F352-GQ provides continuity for applications requiring this microcontroller architecture.

Q: Are there inventory differences between these parts?

A: Yes. C8051F352 has 821 pieces in stock, while C8051F352-GQ has 1350 pieces available. Availability may vary by distributor and time.

Q: What does ROHS3 compliance mean for the C8051F352-GQ?

A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting specific hazardous materials in electrical and electronic equipment.