Thông số kỹ thuật
This is a high-performance mixed-signal 8-bit microcontroller developed by Silicon Labs, built around the enhanced CIP-51 8051-compatible pipeline core, featuring powerful arithmetic operation capability and comprehensive integrated analog peripherals for high-precision data acquisition and industrial embedded control.
Part Number Definition
C8051F120 stands for the core model of the F12x MCU product series. GQR represents 100-pin TQFP surface mount package, industrial temperature grade, and tape-and-reel packaging for automatic SMT placement on production lines.
Core and Memory Specifications
The CIP-51 core supports a maximum operating frequency of 100MHz and delivers 100MIPS computing performance, greatly outperforming traditional standard 8051 microcontrollers. It embeds 128KB in-system programmable Flash memory for program and parameter storage, along with 8448 bytes of on-chip RAM. An independent multiply-accumulate unit is integrated to accelerate mathematical calculations such as filtering and scaling. An external memory interface is reserved to expand up to 64KB off-chip data storage space.
Onboard Peripheral Resources
Analog modules include an 8-channel 12-bit 100kSPS ADC with programmable gain amplifier and internal voltage reference, an extra 8-channel 8-bit high-speed ADC, and dual 12-bit DAC channels for analog signal output. Two independent analog comparators are equipped for rapid threshold signal judgment. Digital peripherals contain two hardware UART ports, SPI bus, SMBus/I2C interface, five groups of 16-bit timers, and a programmable counter/timer array with six capture/compare channels for multi-channel PWM generation. A built-in temperature sensor, power supply voltage monitor and watchdog timer improve system fault protection and operational stability. The crossbar switching function enables flexible pin function allocation, with up to 64 general-purpose I/O pins available. Internal precision high-frequency and low-frequency oscillators eliminate reliance on external crystal oscillators for basic system operation.
Power Supply and Working Modes
The chip operates within a supply voltage range of 3.0V to 3.6V. Multiple power management modes including normal operation, idle mode and stop mode are available to cut power consumption during standby periods, suiting battery-powered portable devices and low-power monitoring terminals.
Packaging and Assembly Requirements
The component adopts 100-TQFP packaging with a size of 14mm×14mm, surface mount soldering mode. It is categorized as an MSL3 moisture sensitive device, and reflow soldering must be completed within 168 hours after opening the original vacuum packaging. Tape-and-reel packaging matches the feeding requirements of fully automatic patch equipment.
Environmental and Compliance Standards
The operating temperature range is -40℃ to +85℃, suitable for industrial field equipment, testing instruments and conventional consumer electronic products. The product adopts lead-free production technology and meets standard environmental regulatory requirements. High integration level reduces the quantity of peripheral peripheral components and the overall PCB layout area.
Các lĩnh vực ứng dụng điển hình
Industrial multi-channel data acquisition equipment and online monitoring instrumentation Portable measuring devices, weighing instruments and medical handheld analytical equipment Motor drive control systems, switching power supply auxiliary control and small PLC modules Fiber communication front-end signal processing units and optical transmission monitoring terminals Automation detection equipment, intelligent weighing terminals and wired communication data processing nodes
LXB Semicon supplies original Silicon Labs C8051F120-GQR high-speed mixed-signal 8-bit microcontroller
