C8051F930-GMR Equivalent & Substitute Parts

Part Overview

The C8051F930-GMR is an 8-bit microcontroller from Silicon Labs' C8051F9xx series, featuring a 25MHz 8051 core with 64KB FLASH program memory and 4.25KB RAM. This device integrates SMBus (2-Wire/I2C), SPI, and UART connectivity alongside peripheral functions including brown-out detection, PWM, temperature sensing, and watchdog timer capabilities. The part is currently classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and production continuity.

Substiute Parts

C8051F930-GMR

Silicon LabsIn Stock: 1406C8051F930-GMR Datasheet

Current PartRFQ

C8051F930-G-GMR

Silicon LabsIn Stock: 19249C8051F930-G-GMR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the C8051F930-GMR is determined by strict equivalence across the following critical parameters:

• Core Architecture: 8051 processor family
• Memory Configuration: 64KB FLASH program memory and 4.25KB RAM
• Clock Speed: 25MHz operation
• Supply Voltage Range: 0.9V ~ 3.6V
• Peripheral Set: SMBus, SPI, UART, brown-out detection, PWM, temperature sensor, watchdog timer
• I/O Count: 24 pins
• Package Format: 32-QFN (5x5) with exposed pad
• Thermal Range: -40°C to 85°C

The C8051F930-G-GMR qualifies as a direct substitute, maintaining identical electrical specifications and package configuration while differing in product status and packaging format availability.

Parameter Comparison

Engineering Selection Recommendations

The C8051F930-G-GMR is the direct functional equivalent of the C8051F930-GMR. Selection between these parts is determined by availability and compliance requirements rather than technical performance:

• C8051F930-G-GMR is the preferred choice for new designs and ongoing production. This part maintains active product status with confirmed availability in standard packaging formats (Cut Tape and Digi-Reel). The part carries ROHS3 compliance certification, meeting current environmental and regulatory standards.

• C8051F930-GMR is classified as obsolete and should be replaced in active designs. Existing inventory may be available but represents a declining resource without manufacturer support.

Both parts are electrically and mechanically identical across all specified parameters, ensuring direct substitution without circuit modification or firmware changes.

Frequently Asked Questions (FAQ)

Q: Can C8051F930-G-GMR replace C8051F930-GMR in existing designs?

A: Yes. Both parts are functionally identical across all electrical and mechanical specifications. No circuit redesign or firmware modification is required. The substitute part operates within the same voltage range, clock speed, memory configuration, and peripheral feature set.

Q: What is the difference between these part numbers?

A: The primary differences are product lifecycle status and packaging availability. C8051F930-GMR is obsolete with limited inventory. C8051F930-G-GMR is active production with standard packaging options and ROHS3 compliance certification.

Q: Are the packages physically identical?

A: Yes. Both parts use the 32-VFQFN (5x5) package with exposed pad. PCB footprints and assembly processes are identical.

Q: Does the substitute part meet current compliance requirements?

A: C8051F930-G-GMR carries ROHS3 compliance certification. Compliance status for C8051F930-GMR is not specified in available documentation.

Q: What is the inventory status of each part?

A: C8051F930-GMR has 1,320 pieces in stock. C8051F930-G-GMR has 19,225 pieces in stock, providing greater availability for production requirements.

Q: Are there any firmware or software compatibility issues between these parts?

A: No. Both parts implement the identical 8051 core architecture with matching memory organization, peripheral interfaces, and instruction set. Existing firmware requires no modification.