Product Overview
The C8051F350-GQR from Silicon Labs is a precision 8-bit 8051 MCU featuring an integrated 24-bit sigma-delta ADC with programmable gain amplifier (PGA). With 8KB Flash, 768B RAM, and up to 50 MIPS throughput, it is designed for high-precision measurement applications. Housed in a 28-pin QFN (5x5mm) package.
Key Specifications
| Core | 8051 (pipelined, up to 50 MIPS) |
| Flash | 8 KB (ISP) |
| RAM | 768 bytes |
| ADC Resolution | 24-bit sigma-delta |
| ADC Channels | 8 (with 8:1 mux) |
| PGA Gain | 1x to 128x |
| ADC Nonlinearity | 0.0015% |
| Interfaces | I2C/SMBus, SPI, UART |
| Supply Voltage | 2.7V – 3.6V |
| Package | QFN-28 (5 x 5 mm) |
| Operating Temp | -40 to 85 C |
Features
- 24-bit sigma-delta ADC with 0.0015% nonlinearity
- Programmable gain amplifier (PGA) from 1x to 128x
- 8-input multiplexer with differential and single-ended modes
- High-speed 8051 core at 50 MIPS
- Two 8-bit current-mode DACs
- 4 timers, 2 PWM channels, and PCA
Applications
- Precision weighing scales and load cells
- Industrial process control and instrumentation
- Medical monitoring devices
- Pressure and temperature measurement
- Gas and chemical sensors