C8051F320-GQR 8-bit 8051 microcontroller with 16KB Flash, 25 MHz speed, USB 2.0 connectivity, and 25 I/O pins in a 32-LQFP package.
Mfr Part #:

C8051F320-GQR

Available from 4 distributors
Mfr Name: Silicon Labs
Silicon Labs
8-bit 8051 microcontroller with 16KB Flash, 25 MHz speed, USB 2.0 connectivity, and 25 I/O pins in a 32-LQFP package.
✓ Total Stock: 34,122 pcs
$ Price Range: $5.49

C8051F320-GQR Available from 4 distributors

✓ Authorised
✓ Non-Authorised

C8051F320-GQR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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Operating Temperature
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Peripherals
Program Memory Size
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C8051F320-GQR Description

Short technical summary and product information.

The C8051F320-GQR is an 8-bit microcontroller from Silicon Labs based on the 8051 core, operating at up to 25 MHz with 25 MIPS throughput. It integrates 16 KB of Flash program memory and 2.25 KB of internal RAM, along with a USB 2.0 controller supporting full speed (12 Mbps) and low speed (1.5 Mbps) operation with integrated clock recovery — no external crystal required. The device also includes a 10-bit ADC with up to 200 ksps sampling rate, built-in temperature sensor, brown-out detection, power-on reset, PWM, and watchdog timer.

 

Connectivity options include SMBus (I²C), SPI, UART/USART, and USB. The 25 general-purpose I/O pins are 5V tolerant and feature high sink current. The internal oscillator provides 0.25% accuracy, and the device can switch between clock sources on-the-fly for power savings. The operating voltage range is 2.7V to 3.6V, with an internal voltage regulator allowing an input of 4.0V to 5.25V.

 

Packaged in a 32-pin LQFP (7x7mm) with surface mount mounting, the C8051F320-GQR is rated for industrial temperature range of -40°C to 85°C. It is listed as RoHS3 compliant. This microcontroller is suitable for USB-connected embedded applications requiring analog and digital peripherals in a compact footprint.

C8051F320-GQR Quick Information

Product Type: Microcontroller
Canonical Name: C8051F320-GQR - 8051 8-bit Microcontroller with USB 2.0
Subcategory: 8-bit Microcontrollers

C8051F320-GQR Compliance

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

C8051F320-GQR Estimated Pricing

Qty Low High
1+ $5.49 $5.49

Estimated market price range - modelled values for guidance only, not live distributor offers.

C8051F320-GQR Features

  • 8051 core with 25 MIPS throughput.
  • Integrated USB 2.0 full/low speed controller.
  • 16KB Flash and 2.25KB internal RAM.
  • 10-bit ADC with 200 ksps sampling rate.
  • 25 I/O pins with 5V tolerance.

C8051F320-GQR Applications

  • Ideal for USB-based embedded control systems.
  • Used in sensor interfaces with analog inputs.
  • Suitable for portable battery-powered devices.
  • Applied in industrial control and monitoring.

C8051F320-GQR FAQs

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

2.7V to 3.6V.

What is the operating temperature range?

-40°C to 85°C.

What package is this microcontroller available in?

32-LQFP (7x7mm).

Is the C8051F320-GQR RoHS compliant?

Yes, listed as RoHS3 compliant (unverified).

What is the maximum clock speed?

25 MHz.

How much Flash memory does it have?

16 KB.

Does it have USB connectivity?

Yes, USB 2.0 full speed (12 Mbps) and low speed (1.5 Mbps).

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