C8051F300-GDI

Overview

The C8051F300-GDI is a mixed-signal ISP Flash microcontroller from Silicon Labs, featuring a high-speed 25 MIPS CIP-51 core and 256 bytes of internal RAM. It integrates an 8-bit ADC with up to 500 ksps sampling rate, a low-current comparator, and hardware-enhanced UART/SMBus interfaces. The device operates on a 2.7V to 3.6V supply within a -40°C to +85°C temperature range. It utilizes an internal 24.5 MHz oscillator or external clock sources and supports full-speed non-intrusive in-system debugging via the C2 interface.

Feature Summary

• Pipelined CIP-51 architecture delivers high throughput with 70% of instructions executing in one or two system clocks.
• Integrated analog peripherals include an 8-bit ADC with programmable gain amplifiers and a built-in temperature sensor.
• On-chip debug circuitry enables full-speed, non-intrusive in-system debugging without requiring external emulation hardware.
• Programmable digital I/O crossbar allows flexible mapping of internal digital resources to physical pins.

Applications

• Optical communication modules (XFP/SFP)
• Motor control systems
• Industrial equipment monitoring
• Medical devices such as capsule endoscopy

Procurement Notes

Verify that the specific ordering suffix corresponds to the required package type, as the datasheet indicates availability in both QFN and SOIC formats. Confirm the component status against manufacturer records, noting the document header states this family is not recommended for new designs. Ensure compatibility with existing development tools like Simplicity Studio or Keil environments before finalizing procurement.

Selection Notes

Select this component when a compact mixed-signal solution with integrated ADC and comparator is required. The C8051F300-GDI variant specifically denotes the die form factor; verify if packaging is necessary for the assembly process. Consider the 256-byte RAM limit and 8 kB Flash capacity for application memory requirements. Evaluate the 5V tolerant I/O capability if interfacing with higher voltage logic levels.

Part Context

The C8051F300 belongs to the C8051F30x series of mixed-signal microcontrollers from Silicon Labs. This family shares the CIP-51 core and peripheral set but varies in memory size and specific analog features. The GDI suffix typically refers to the bare die configuration, distinguishing it from packaged variants like the GM or GS suffixes found in the same product line.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The datasheet explicitly marks the C8051F300/1/2/3/4/5 family as 'Not Recommended for New Designs', suggesting alternative modern silicon should be evaluated for new projects.