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C8051F120-GQ

8051 100MHz MCU, 128KB Flash, 8KB RAM, 12-bit ADC, dual 12-bit DAC, TQFP-100

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Manufacturer Part：

C8051F120-GQ

Package：

TQFP-100 (14 x 14 mm)

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Description

Product Overview

The C8051F120-GQ from Silicon Labs is a high-performance 8051-based mixed-signal MCU featuring 128 KB Flash, 8448 bytes RAM, 12-bit 100 ksps ADC, two 12-bit DACs, and a rich peripheral set in a 100-pin TQFP package. It delivers up to 100 MIPS throughput at 100 MHz.

Key Specifications

Core 8051 (pipelined)
Max Throughput 100 MIPS @ 100 MHz
Flash Memory 128 KB
RAM 8448 bytes (256 + 4K + 4K)
ADC 12-bit, 100 ksps, 8-channel
DAC 2 x 12-bit
UART 2
SPI 1
I2C/SMBus 1
Timers 5 (4x 16-bit + 1 programmable counter)
Supply Voltage 2.7 V to 3.6 V
Package TQFP-100 (14 x 14 mm)

Features

  • High-speed pipelined 8051 core up to 100 MIPS
  • 128 KB on-chip Flash with in-system programming
  • 12-bit 100 ksps ADC with 8-channel input multiplexer
    • Dual 12-bit voltage-output DACs Two hardware UARTs, SPI, SMBus/I2C Five 16-bit general-purpose timers On-chip programmable counter array (PCA) Analog comparators and voltage reference

Applications

  • Industrial control and automation
  • Medical instrumentation
  • Precision measurement systems
  • Motor control
  • Communication equipment

The C8051F120-GQ from Silicon Labs is a fully integrated mixed-signal 8-bit microcontroller based on a high-performance pipelined 8051 core achieving up to 100 MIPS throughput. It integrates 128 KB of on-chip Flash, 8448 bytes of RAM, a 12-bit 100 ksps ADC with 8-channel multiplexer, two 12-bit DACs, two UARTs, SPI, SMBus, and multiple timers. The device is designed for high-performance mixed-signal applications requiring precision analog and fast digital processing.

The C8051F120-GQ uses a pipelined 8051 core that executes 70% of instructions in 1-2 clock cycles versus 12 for the traditional 8051, achieving 100 MIPS at 100 MHz. The analog subsystem includes a 12-bit successive approximation ADC with programmable gain amplifier and 8-channel multiplexer, feeding data through the ADC interrupt system. Two 12-bit DACs provide precision voltage outputs. The digital crossbar allows flexible mapping of digital peripherals to any GPIO pin. The on-chip debug circuitry provides full-speed JTAG debug without requiring external emulators.

Pin Group Name Type Function
1-8 P0.0-P0.7 I/O GPIO / UART / SPI / SMBus
9-16 P1.0-P1.7 I/O GPIO / ADC inputs / comparator
17-24 P2.0-P2.7 I/O GPIO / PCA / timer I/O
25-32 P3.0-P3.7 I/O GPIO / UART / timer
41 VDD Power Digital supply (2.7-3.6V)
42 DGND Ground Digital ground
43-44 VREF0/VREF1 Input Voltage reference inputs
45-46 AV+/AGND Power Analog supply and ground
47-52 P4.0-P5.3 I/O GPIO / DAC outputs / ADC
53-100 P5.4-P7.7 I/O GPIO / address/data bus
  • High-performance industrial control systems
  • Precision medical instrumentation
  • Data acquisition and measurement
  • Servo and motor control loops
  • Communications and networking equipment
Manufacturer Part Number Package Notes
Silicon Labs C8051F130-GQ TQFP-100 Higher ADC speed variant
Silicon Labs C8051F120-GM TQFP-64 Reduced pin count
STMicroelectronics STM32F103VET6 LQFP-100 Cortex-M3 alternative
Microchip AT91SAM7X256 LQFP-64 ARM7 alternative with Ethernet
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All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

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