C8051F343-GQ The C8051F343-GQ is an 8051-based 8-bit microcontroller from Silicon Labs. It offers 32KB Flash, 2.25KB RAM, USB 2.0 connectivity, and operates at up to 48MHz in a 32-LQFP package.
Mfr Part #:

C8051F343-GQ

Available from 1 distributors
Mfr Name: Silicon Labs
Silicon Labs
The C8051F343-GQ is an 8051-based 8-bit microcontroller from Silicon Labs. It offers 32KB Flash, 2.25KB RAM, USB 2.0 connectivity, and operates at up to 48MHz in a 32-LQFP package.
✓ Total Stock: 2,500 pcs

C8051F343-GQ Available from 1 distributor

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C8051F343-GQ Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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C8051F343-GQ Description

Short technical summary and product information.

The C8051F343-GQ is an 8-bit microcontroller from Silicon Labs built around the 8051 core. It operates at speeds up to 48 MHz and features a pipelined instruction architecture. The device is part of the C8051F34x family designed for full-speed and low-speed USB applications.

 

The MCU provides 32 KB of in-system programmable Flash memory and 2.25 KB of RAM. It includes a 10-bit ADC with up to 200 ksps sampling rate and 21 input channels, as well as two analog comparators. Peripherals include a brown-out detector, power-on reset, PWM, temperature sensor, and watchdog timer.

 

Digital connectivity is supported through SMBus/I2C, SPI, UART/USART, and USB 2.0 interfaces. The internal oscillator offers ±0.25% accuracy with clock recovery, eliminating the need for an external crystal in many applications. The microcontroller has 25 I/O lines that are 5V tolerant.

 

This surface-mount device is supplied in a 32-LQFP (7x7) package and operates over a temperature range of -40°C to 85°C. The supply voltage range is 2.7V to 5.25V, with on-chip regulation supporting 3.6V to 5.25V inputs. It is suitable for embedded control, USB peripherals, and industrial applications.

C8051F343-GQ Quick Information

Product Type: Microcontroller
Canonical Name: Silicon Labs C8051F343-GQ 8-bit USB Flash Microcontroller
Subcategory: Full-Speed USB Flash MCU

C8051F343-GQ Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

C8051F343-GQ Features

  • 8051 core executes up to 48MHz.
  • 32KB Flash and 2.25KB RAM memory.
  • USB 2.0 full-speed and low-speed operation.
  • 10-bit ADC with 200 ksps sampling.
  • Operates from -40°C to 85°C.

C8051F343-GQ Applications

  • USB-enabled embedded control systems.
  • Industrial sensor and actuator interfaces.
  • Portable data acquisition devices.
  • Human-machine interface (HMI) panels.
  • Battery-powered instrumentation.

C8051F343-GQ FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the C8051F343-GQ?

According to the datasheet, the supply input range is 2.7V to 5.25V. On-chip voltage regulation supports inputs from 3.6V to 5.25V.

What package is the C8051F343-GQ available in?

It is available in a 32-LQFP (7x7) surface-mount package.

What operating temperature range does the C8051F343-GQ support?

It operates over a temperature range of -40°C to 85°C.

Is the C8051F343-GQ RoHS compliant?

The part is listed as RoHS3 compliant, but this has not been independently verified; confirm with the manufacturer before volume use.

What core processor does the C8051F343-GQ use?

It uses an 8051 8-bit core.

What memory does the C8051F343-GQ have?

It includes 32KB of Flash program memory and 2.25KB of RAM.

What USB capabilities are included on the C8051F343-GQ?

It features a USB 2.0 compliant controller with full speed (12 Mbps) and low speed (1.5 Mbps) operation.

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