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C8051F34A-GQR The C8051F34A-GQR is an 8-bit 8051 microcontroller from Silicon Labs with 64KB Flash memory, 4.25KB RAM, and a maximum speed of 48MHz. It is housed in a 32-LQFP package and supports USB 2.0 connectivity.
Mfr Part #:

C8051F34A-GQR

Available from 1 distributors
Mfr Name: Silicon Labs
Silicon Labs
The C8051F34A-GQR is an 8-bit 8051 microcontroller from Silicon Labs with 64KB Flash memory, 4.25KB RAM, and a maximum speed of 48MHz. It is housed in a 32-LQFP package and supports USB 2.0 connectivity.
Total Stock: 564 pcs

C8051F34A-GQR Available from 1 distributor

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564 pcs
564 pcs On Request 1 On Request On Request On Request On Request 2026-02-23 21:33:16

C8051F34A-GQR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
ADC Resolution
ADC Sampling Rate
Connectivity
Core Processor
Core Size
Data Converters
Internal Oscillator Accuracy
Lead Style
Mounting Type
Number of I
Operating Temperature
Oscillator Type
Peripherals
Program Memory Size
Program Memory Type
RAM Size
SVHC Present
Speed
Supplier Device Package
USB Specification
USB Speed
Voltage

C8051F34A-GQR Description

Short technical summary and product information.

The C8051F34A-GQR is an 8-bit microcontroller from Silicon Laboratories based on the high-speed 8051 core. It operates at a maximum clock speed of 48MHz and features 64KB of Flash program memory and 4.25KB of RAM. The device includes a 10-bit ADC with a sampling rate of up to 200 ksps, a built-in temperature sensor, and multiple peripherals such as Brown-out Detect/Reset, POR, PWM, and WDT.

 

Connectivity options include SMBus (I²C), SPI, UART/USART, and a USB 2.0 controller supporting full-speed (12 Mbps) and low-speed (1.5 Mbps) operation. The internal oscillator achieves ±0.25% accuracy with clock recovery enabled, eliminating the need for an external crystal in many applications.

 

The microcontroller is supplied in a 32-LQFP (7x7 mm) surface-mount package and operates over a temperature range of -40°C to 85°C. The supply voltage range is 2.7V to 3.6V. It has 25 general-purpose I/O pins that are 5V tolerant.

C8051F34A-GQR Quick Information

Product Type: Microcontroller
Series: C8051F34x
Canonical Name: C8051F34A-GQR
Subcategory: 8-bit Microcontroller

C8051F34A-GQR Compliance

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

C8051F34A-GQR Features

  • 8-bit 8051 core with 48MHz maximum speed.
  • 64KB Flash program memory and 4.25KB RAM.
  • Integrated USB 2.0 controller (Full/Low Speed).
  • 10-bit ADC with up to 200 ksps sampling rate.
  • Internal oscillator with ±0.25% accuracy.

C8051F34A-GQR Applications

  • Suitable for USB-enabled embedded control systems.
  • Ideal for industrial control and monitoring applications.
  • Used in sensor interface and data acquisition designs.
  • Applicable in consumer electronics with USB connectivity.

C8051F34A-GQR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating temperature range of the C8051F34A-GQR?

The operating temperature range is -40°C to 85°C.

What is the package type for the C8051F34A-GQR?

The package is a 32-LQFP (7x7 mm) surface-mount package.

What is the supply voltage range for this microcontroller?

The supply voltage range is 2.7V to 3.6V.

Does the C8051F34A-GQR have USB connectivity?

Yes, it has a USB 2.0 controller supporting full-speed (12 Mbps) and low-speed (1.5 Mbps) operation.

What is the maximum speed of the C8051F34A-GQR?

The maximum speed is 48 MHz.

How much Flash memory does the C8051F34A-GQR have?

It has 64KB of Flash program memory.

What is the ADC resolution and sampling rate?

The ADC has a 10-bit resolution and a maximum sampling rate of 200 ksps.

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