​C8051F38x Microcontrollers

Silicon Labs' USB microcontrollers (MCUs), with embedded full-speed USB 2.0, offer best-in class analog peripherals with a high performance CPU. In addition, USBXpress development kits are available to provide a complete host and device software solution.
The C8051F38x microcontroller (MCU) family is ideal for applications requiring cost effective, robust analog and digital peripherals and high performance processing capabilities. This family of MCUs provide solutions for both USB-based applications and broad-based applications that do not require USB. The USB MCUs feature an on-board fully integrated universal serial bus (USB) 2.0 function controller and transceiver. No external resistors, crystal or voltage regulator are required. Best-in class on-chip analog peripherals include a multi-channel high performance ADC, up to 500 Ksps, comparators and internal voltage reference and temperature sensor.
Silicon Labs' USB MCUs, with embedded full-speed USB 2.0, offer best-in class analog peripherals with a high performance CPU. In addition, USBXpress development kits are available to provide a complete host and device software solution. Customers may use their own vendor ID (VID) or they may use the silicon labs VID for USB products. If the Silicon Labs VID is used, the customer must request a unique product ID.​
 
 

Features

  • 48 MIPS 8051 CPU
  • 16-64 kB Flash memory
  • 2-4 kB RAM memory
  • USB full speed 2.0
  • 1 kB USB buffer memory
  • Multi-channel 10-bit ADC up to 500 Ksps
  • Two comparators
  • Internal voltage reference
  • SPI
  • Two SMBus /I²C
  • Up to 2 UARTS
  • Four 16 bit timers
  • 16-bit programmable counter array
  • External memory interface
 
 

Applications

Documentation

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Data Sheet (4)

Data Short (1)

DescriptionVersionUpdatedSize
C8051F38x Data Short
11.23.201311/25/2013

Errata (3)

DescriptionVersionUpdatedSize
C8051F388-B Errata
11.11.1311/12/2013
C8051F38x Errata
05.18.125/18/2012
USB Timeout Errata
0131113/30/2011

User Guides (3)

Quick Start Guide (1)

Application Notes (19)

White Papers (6)

Miscellaneous (1)

DescriptionVersionUpdatedSize
C2 Specification
1.1

PCN (4)

Request a Unique Product ID (PID)

Customers may use their own vendor ID (VID) or they may use the silicon labs VID for USB products. If the Silicon Labs VID is used, the customer must request a unique product ID.​

Development Tools

 

One Click Access to the Latest Software, Documentation & Tools

 Simplicity Studio
One-click accessibility Simplicity Studio gives you instant access to tools, relevant documentation, software and source code libraries
Always updated Simplicity Studio automatically keeps you up-to-date with all changes affecting your development environment
World-class simplicity Simplicity Studio includes a product selector to help you speed up the MCU selection process
 

 

Design Tools

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Software (47)

DescriptionVersionUpdatedSize
Interfacing an External SRAM to the C8051Fxxx
16-bit PWM using an on-chip timer
8 Bits Tools Installer
4.907/23/2014
Advanced encryption standard
AN767SW: SMBus Bootloader Software
4/25/2013
AN778 Software
6/21/2013
Configuration Wizard 2 Installer
4.4012/11/2013
Configuring the internal and external oscillators
Configuring the Port I/O Crossbar Decoder
EEPROM emulation for flash microcontrollers
Flash programming via the C2 interface
FLASHUtil Installer
4.407/23/2014
Hex to Svf conversion utility software
V 1.317/17/2012
Human Interface Device Tutorial
IDE Installer
4.907/23/2014
Implementing a real-time clock
Improving ADC resolution by oversampling and averaging
Integrating Hi-Tech 8051 tools into the Silicon Labs IDE
Integrating IAR 8051 tools into the Silicon Labs IDE
Integrating SDCC 8051 tools into the Silicon Labs IDE
Integrating Tasking 8051 tools into the Silicon Labs IDE
IR Performance Analysis Tool
Low Pin-Count LCD Interface Software
Modular bootloader framework for Silicon Labs MCUs
Production Programmer
3.207/23/2014
Simplicity Studio v2
v212/12/2014
Simplicity Studio v2, Linux Installer
v212/12/2014
Simplicity Studio v2, Mac Installer
v212/12/2014
Simplicity Studio v2, Offline Installer
v212/12/2014
Software UART examples
Three-Channel Power Sequencer.
ToolStick Development Tools
2.60.18/2/2013
USB Audio Class Tutorial
USB Bootloader with Shared USBXpress® Library
2.1310/2/2013
USB Debug Adapter Reset Utility
1.76/1/2013
USB Driver Installation Utility
3.44/18/2013
USB FM Radio Player
USBXpress 4 SDK
4.0.210/15/2013
USBXpress Dev Kit
USBXpress Release Notes
USBXpress Win98SE Development Kit
USBXpress WinCE 4.2
USBXpress WinCE 5.0
USBXpress WinCE 6.0
USBXpress4 Release Notes
4.0.210/15/2013
uVision Driver
4.107/23/2014
Writing to flash from firmware

Schematics/Layout (20)

Training (3)

 

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Product Matrix
Zoom
Part NumberMCU CoreMHzFlashRAMDig I/O PinsTimers (16-bit)PCA ChannelsInternal Osc.ADC 1ADC 2DACTemp SensorVREFComparatorsDebug InterfaceOtherPackage TypePackage SizeAlternativeDev KitDatasheetAEC-Q100CommunicationsFootnotes
C8051F380-GQ
Buy
Sample
805150 *64 kB4.254065±1.5%10-bit, 32-ch., 500 kspsYesYes2C2Ext Mem I/FTQFP489x9 mmC8051F380DK

NoI2C; 2 x I2C; SPI; UART; 2 x UART; USBMHz|50|*|Clock frequency maximum is 48 MHz
C8051F381-GM
Buy
Sample
805150 *64 kB4.252565±1.5%10-bit, 21-ch., 500 kspsYesYes2C2QFN325x5 mmC8051F380DK

NoI2C; 2 x I2C; SPI; UART; 2 x UART; USBMHz|50|*|Clock frequency maximum is 48 MHz
C8051F381-GQ
Buy
Sample
805150 *64 kB4.252565±1.5%10-bit, 21-ch., 500 kspsYesYes2C2LQFP329x9 mmC8051F380DK

NoI2C; 2 x I2C; SPI; UART; 2 x UART; USBMHz|50|*|Clock frequency maximum is 48 MHz
C8051F382-GQ
Buy
Sample
805150 *32 kB2.254065±1.5%10-bit, 32-ch., 500 kspsYesYes2C2Ext Mem I/FTQFP489x9 mmC8051F380DK

NoI2C; 2 x I2C; SPI; UART; 2 x UART; USBMHz|50|*|Clock frequency maximum is 48 MHz
C8051F383-GM
Buy
Sample
805150 *32 kB2.252565±1.5%10-bit, 21-ch., 500 kspsYesYes2C2QFN325x5 mmC8051F380DK

NoI2C; 2 x I2C; SPI; UART; 2 x UART; USBMHz|50|*|Clock frequency maximum is 48 MHz
C8051F383-GQ
Buy
Sample
805150 *32 kB2.252565±1.5%10-bit, 21-ch., 500 kspsYesYes2C2LQFP329x9 mmC8051F380DK

NoI2C; 2 x I2C; SPI; UART; 2 x UART; USBMHz|50|*|Clock frequency maximum is 48 MHz
C8051F384-GQ
Buy
Sample
805150 *64 kB4.254065±1.5%NoNo2C2Ext Mem I/FTQFP489x9 mmC8051F380DK

NoI2C; 2 x I2C; SPI; UART; 2 x UART; USBMHz|50|*|Clock frequency maximum is 48 MHz
C8051F385-GM
Buy
Sample
805150 *64 kB4.252565±1.5%NoNo2C2QFN325x5 mmC8051F380DK

NoI2C; 2 x I2C; SPI; UART; 2 x UART; USBMHz|50|*|Clock frequency maximum is 48 MHz
C8051F385-GQ
Buy
Sample
805150 *64 kB4.252565±1.5%NoNo2C2LQFP329x9 mmC8051F380DK

NoI2C; 2 x I2C; SPI; UART; 2 x UART; USBMHz|50|*|Clock frequency maximum is 48 MHz
C8051F386-GQ
Buy
Sample
805150 *32 kB2.254065±1.5%NoNo2C2Ext Mem I/FTQFP489x9 mmC8051F380DK

NoI2C; 2 x I2C; SPI; UART; 2 x UART; USBMHz|50|*|Clock frequency maximum is 48 MHz
C8051F387-GM
Buy
Sample
805150 *32 kB2.252565±1.5%NoNo2C2QFN325x5 mmC8051F380DK

NoI2C; 2 x I2C; SPI; UART; 2 x UART; USBMHz|50|*|Clock frequency maximum is 48 MHz
C8051F387-GQ
Buy
Sample
805150 *32 kB2.252565±1.5%NoNo2C2LQFP329x9 mmC8051F380DK

NoI2C; 2 x I2C; SPI; UART; 2 x UART; USBMHz|50|*|Clock frequency maximum is 48 MHz
C8051F388-GQ
Buy
Sample
805150 *64 kB4.254065±1.5%10-bit, 32-ch., 500 kspsYesYes2C2External Memory I/FTQFP489x9 mmC8051F380DK

NoI2C; 2 x I2C; SPI; UART; 2 x UARTMHz|50|*|Clock frequency maximum is 48 MHz
C8051F389-GM
Buy
Sample
805150 *64 kB4.252565±1.5%10-bit, 21-ch., 500 kspsYesYes2C2QFN325x5 mmC8051F380DK

NoI2C; 2 x I2C; SPI; UART; 2 x UARTMHz|50|*|Clock frequency maximum is 48 MHz
C8051F389-GQ
Buy
Sample
805150 *64 kB4.252565±1.5%10-bit, 21-ch., 500 kspsYesYes2C2LQFP329x9 mmC8051F380DK

NoI2C; 2 x I2C; SPI; UART; 2 x UARTMHz|50|*|Clock frequency maximum is 48 MHz
C8051F38A-GQ
Buy
Sample
805150 *32 kB2.254065±1.5%10-bit, 32-ch., 500 kspsYesYes2C2External Memory I/FTQFP489x9 mmC8051F380DK

NoI2C; 2 x I2C; SPI; UART; 2 x UARTMHz|50|*|Clock frequency maximum is 48 MHz
C8051F38B-GM
Buy
Sample
805150 *32 kB2.252565±1.5%10-bit, 21-ch., 500 kspsYesYes2C2QFN325x5 mmC8051F380DK

NoI2C; 2 x I2C; SPI; UART; 2 x UARTMHz|50|*|Clock frequency maximum is 48 MHz
C8051F38B-GQ
Buy
Sample
805150 *32 kB2.252565±1.5%10-bit, 21-ch., 500 kspsYesYes2C2LQFP329x9 mmC8051F380DK

NoI2C; 2 x I2C; SPI; UART; 2 x UARTMHz|50|*|Clock frequency maximum is 48 MHz
C8051F38C-GM
Buy
Sample
805150 *16 kB2.252565±1.5%10-bit, 21-ch., 500 kspsYesYes2C2QFN325x5 mmC8051F380DK

NoI2C; 2 x I2C; SPI; UART; 2 x UART; USBMHz|50|*|Clock frequency maximum is 48 MHz
C8051F38C-GQ
Buy
Sample
805150 *16 kB2.252565±1.5%10-bit, 21-ch., 500 kspsYesYes2C2LQFP329x9 mmC8051F380DK

NoI2C; 2 x I2C; SPI; UART; 2 x UART; USBMHz|50|*|Clock frequency maximum is 48 MHz
* Clock frequency maximum is 48 MHz
* Clock frequency maximum is 48 MHz

    Microcontroller Development Tools

    Each USB Microcontroller device comes with development tools to simplify designs and make development easy.
     

    USBXpress® Development Tools

    The USBXpress® development kit provides a complete host and device software solution for interfacing CP210x USB to UART bridge and C8051F32x/34x/38x and C8051T62x/T32x USB microcontroller devices to the Universal Serial Bus (USB).
    The C8051F38x family is pin and code compatible with the existing C8051F34x family, providing a seamless migration path for enhanced performance and additional features.

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