Title Content
C8051F38x USB 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 family is ideal for applications requiring cost effective, robust analog and digital peripherals and high performance processing capabilities. 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.

The C8051F38x family is pin and code compatible with the existing C8051F34x family, providing a seamless migration path for enhanced performance and additional features.

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.

Download the free white paper:
USB Connectivity in a Complex World

Features

48 MIPS 8051 CPU
32-64 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

PC peripherals
Point-of-sale terminals
Consumer medical devices
Instrumentation
USB modems
Game controllers
IP telephones
Upgrade legacy RS-232 to USB

Technologies

Each USB Microcontroller device comes with development tools to simplify designs and make development easy. With Silicon Labs’ USBXpress® development software, interfacing designs to the USB has never been easier. The comprehensive kit provides a complete host and device software solution, including Microsoft Windows device drivers.

Documentation Expand All Collapse All

Get notified when these documents are updated.

Data Sheet (3)

Document Name	Description	Version	Last Updated
C8051F380-GDI.pdf	C8051F380-GDI Die Sales	1.1	4/3/2012
C8051F38x.pdf	C8051F38x Data Sheet	1.0	4/26/2011
C8051F38x_chinese.pdf	C8051F38x Data Sheet (Chinese)	1.0	5/10/2012

Data Short (1)

Document Name	Description	Version	Last Updated
C8051F38x_short.pdf	C8051F38x Data Short	3.30.2011	3/30/2011

Errata (2)

Document Name	Description	Version	Last Updated
C8051F38xErrata.pdf	C8051F38x Errata	05.18.12	5/18/2012
USBTimeoutErrata.pdf	USB Timeout Errata	013111	3/30/2011

User Guides (2)

Document Name	Description	Version	Last Updated
C8051F38x-DK.pdf	C8051F38x-DK User's Guide	0.1	3/30/2011
ToolStick_F381_DC_UG.pdf	ToolStick C8051F381 Daughter Card User's Guide	0.1	3/30/2011

Application Notes (11)

Document Name	Description	Version	Last Updated
an125.pdf	AN125: Integrating Raisonance 8051 Tools into the IDE	1.3
an126.pdf	AN126: Integrating Tasking 8051 Tools into the Silicon Labs IDE	2.4
an140.pdf	AN140: Integrating HI-TECH 8051 Tools into the IDE	1.3
AN169.pdf	AN169: USBXpress® Programmer's Guide	2.2	11/30/2010
an198.pdf	AN198: Integrating SDCC 8051 Tools into the Silicon Labs IDE	0.2
AN200.pdf	AN200: USB Bootloader with Shared USBXpress® Library	0.1
an220.pdf	AN220: USB Driver Customization	0.6	3/30/2011
an236.pdf	AN236: Integrating IAR 8051 Tools into the Silicon Laboratories IDE	0.3
AN249.pdf	AN249: Human Interface Device Tutorial	0.5	3/31/2011
an333.pdf	AN333: ToolStick Virtual Tools User's Guide	0.1
an354.pdf	AN354: AB0 Prototyping Board User's Guide	Rev 0.1	11/7/2008

White Papers (3)

Document Name	Description	Version	Last Updated
CIP-51.pdf	CIP-51 Performance for Standard Library Math Routines	2.1
Adding-USB-Comm-to-Embedded-Apps_WP.pdf	Design Considerations in Adding USB Communications to Embedded Applications	0.1	4/22/2011
USB-Connectivity-in-a-Complex-World_WP.pdf	USB Connectivity in a Complex World	0.1	4/8/2011

Miscellaneous (2)

Document Name	Description	Version	Last Updated
C2spec.pdf	C2 Specification	1.1
MCU_QS_Guide_USB.pdf	MCU Quick-Start Guide Featuring the USB Debug Adapter	0.5

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 (PID).

Development Kits and Reference Designs

Design Tools Expand All Collapse All

Get notified when these files are updated.

Software (42)

Document Name	Description	Version	Updated
an106sw.zip	Interfacing an External SRAM to the C8051Fxxx
an110sw.zip	16-bit PWM using an on-chip timer
an324sw.zip	Advanced encryption standard
an534sw.zip	CAN BOOTLOADER
CAN_OBD_DC_Setup.zip	CAN OBD Reader Reference Design Kit
ConfigAndConfig2Install.exe	Configuration Wizard 2 Installer	4.01	12/7/2011
an102sw.zip	Configuring the internal and external oscillators
an101sw.zip	Configuring the Port I/O Crossbar Decoder
AN568SW.zip	EEPROM emulation for flash microcontrollers
UtilDLL.exe	FLASHUtil Installer	4.00	12/7/2011
Hex2Svf_Installer.exe	Hex to Svf conversion utility software
AN249SW.zip	Human Interface Device Tutorial
mcu_ide.exe	IDE Installer	4.40	12/7/2011
an108sw.zip	Implementing a real-time clock
an118sw.zip	Improving ADC resolution by oversampling and averaging
an140sw.zip	Integrating Hi-Tech 8051 tools into the Silicon Labs IDE
an236sw.zip	Integrating IAR 8051 tools into the Silicon Labs IDE
AN198SW.zip	Integrating SDCC 8051 tools into the Silicon Labs IDE
AN126_sw.zip	Integrating Tasking 8051 tools into the Silicon Labs IDE
IR_Performance_Analysis_Tool.zip	IR Performance Analysis Tool
KeilV8Tools_Installer.zip	Keil Eval Tools Installer
an533sw.zip	Modular bootloader framework for Silicon Labs MCUs
an358sw.zip	Optimizing Low Power Operation of the 'F9xx
MCUProductionProgrammer.zip	Production Programmer	2.70	12/7/2011
an115sw.zip	Software UART examples
ToolStick_Setup.exe	ToolStick Development Tools
TouchPanel_RD.zip	TouchPanel Reference Design
AN295SW.zip	USB Audio Class Tutorial
an200sw.zip	USB BOOTLOADER WITH SHARED USBXPRESS®
USB_Reset_Utility.zip	USB Debug Adapter Reset Utility
an335sw.zip	USB Driver Installation Utility	3.4	10/14/2011
USBRadio.zip	USB FM Radio Player
USBXpress_Install.exe	USBXpress Dev Kit
USBXpress_rel_notes.txt	USBXpress Release Notes
USBXpress_Install_Win98SE.exe	USBXpress Win98SE Development Kit
USBXpress_WinCE42.zip	USBXpress WinCE 4.2
USBXpress_WinCE50.zip	USBXpress WinCE 5.0
USBXpress_WinCE60.zip	USBXpress WinCE 6.0
SiC8051F_uVision.exe	uVision Driver	3.60	12/7/2011
VCP_WinCE60.zip	VCP Driver for WinCE60
VCP_WinCE50.zip	VCP Drivers for WinCE50
AN201SW.zip	Writing to flash from firmware

Schematics/Layout (14)

Document Name	Description	Version	Updated
ULADI_SiliconLabs_Reader.exe	ADI Ultra-Librarian Reader for CAD/CAE Schematic Footprints and Symbols .bxl Files
C8051F380-GQ.bxl	C8051F380 CAD/CAE Schematic Footprints and Symbols
C8051F381-GM.bxl	C8051F381 CAD/CAE Schematic Footprints and Symbols
C8051F381-GQ.bxl	C8051F381 CAD/CAE Schematic Footprints and Symbols
C8051F382-GQ.bxl	C8051F382 CAD/CAE Schematic Footprints and Symbols
C8051F383-GM.bxl	C8051F383 CAD/CAE Schematic Footprints and Symbols
C8051F383-GQ.bxl	C8051F383 CAD/CAE Schematic Footprints and Symbols
C8051F384-GQ.bxl	C8051F384 CAD/CAE Schematic Footprints and Symbols
C8051F385-GM.bxl	C8051F385 CAD/CAE Schematic Footprints and Symbols
C8051F385-GQ.bxl	C8051F385 CAD/CAE Schematic Footprints and Symbols
C8051F386-GQ.bxl	C8051F386 CAD/CAE Schematic Footprints and Symbols
C8051F387-GM.bxl	C8051F387 CAD/CAE Schematic Footprints and Symbols
C8051F387-GQ.bxl	C8051F387 CAD/CAE Schematic Footprints and Symbols
toolstickdctemplate.zip	ToolStick Daughter Card Template

Training (3)

Document Name	Description	Version	Updated
8051_Instruction_Set.pdf	8051 Instruction Set
C8051F380-USB-MCU-overview.pdf	C8051F38x USB MCU
Simplifying Microcontroller Development through Compiler Flexibility.pdf	Simplifying Microcontroller Development through Compiler Flexibility

Product Matrix

Part Number	Available Documents	MCU Core	MHz	Flash	RAM	Dig I/O Pins	Communications	Timers (16-bit)	PCA Channels	Internal Osc.	ADC 1	ADC 2	DAC	Temp Sensor	VREF	Comparators	Debug Interface	Other	Package	Dev Kit
C8051F380-GQ	Data Sheet Data Short Errata	8051	48	64 kB	4.25	40	2 x I2C, SPI, 2 x UART, USB	6	5	±1.5%	10-bit, 500 ksps	—	—	Yes	Yes	2	C2	Ext Mem I/F	TQFP48	C8051F380DK
C8051F381-GM	Data Sheet Data Short Errata	8051	48	64 kB	4.25	25	2 x I2C, SPI, 2 x UART, USB	6	5	±.5%	10-bit, 500 ksps	—	—	Yes	Yes	2	C2		QFN32	C8051F380DK
C8051F381-GQ	Data Sheet Data Short Errata	8051	48	64 kB	4.25	25	2 x I2C, SPI, 2 x UART, USB	6	5	±1.5%	10-bit, 500 ksps	—	—	Yes	Yes	2	C2		LQFP32	C8051F380DK
C8051F382-GQ	Data Sheet Data Short Errata	8051	48	32 kB	2.25	40	2 x I2C, SPI, 2 x UART, USB	6	5	±1.5%	10-bit, 500 ksps	—	—	Yes	Yes	2	C2	Ext Mem I/F	TQFP48	C8051F380DK
C8051F383-GM	Data Sheet Data Short Errata	8051	48	32 kB	2.25	25	2 x I2C, SPI, 2 x UART, USB	6	5	±1.5%	10-bit, 500 ksps	—	—	Yes	Yes	2	C2		QFN32	C8051F380DK
C8051F383-GQ	Data Sheet Data Short Errata	8051	48	32 kB	2.25	25	2 x I2C, SPI, 2 x UART, USB	6	5	±1.5%	10-bit, 500 ksps	—	—	Yes	Yes	2	C2		LQFP32	C8051F380DK
C8051F384-GQ	Data Sheet Data Short Errata	8051	48	64 kB	4.25	40	2 x I2C, SPI, 2 x UART, USB	6	5	±1.5%	—	—	—	No	No	2	C2	Ext Mem I/F	TQFP48	C8051F380DK
C8051F385-GM	Data Sheet Data Short Errata	8051	48	64 kB	4.25	25	2 x I2C, SPI, 2 x UART, USB	6	5	±1.5%	—	—	—	No	No	2	C2		QFN32	C8051F380DK
C8051F385-GQ	Data Sheet Data Short Errata	8051	48	64 kB	4.25	25	2 x I2C, SPI, 2 x UART, USB	6	5	±1.5%	—	—	—	No	No	2	C2		LQFP32	C8051F380DK
C8051F386-GQ	Data Sheet Data Short Errata	8051	48	32 kB	2.25	40	2 x I2C, SPI, 2 x UART, USB	6	5	±1.5%	—	—	—	No	No	2	C2	Ext Mem I/F	TQFP48	C8051F380DK
C8051F387-GM	Data Sheet Data Short Errata	8051	48	32 kB	2.25	25	2 x I2C, SPI, 2 x UART, USB	6	5	±1.5%	—	—	—	No	No	2	C2		QFN32	C8051F380DK
C8051F387-GQ	Data Sheet Data Short Errata	8051	48	32 kB	2.25	25	2 x I2C, SPI, 2 x UART, USB	6	5	±1.5%	—	—	—	No	No	2	C2		LQFP32	C8051F380DK

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MCUs

Title Content​C8051F38x USB Microcontrollers

Features

Applications

Technologies

Documentation Expand All Collapse All

Data Sheet (3)

Data Short (1)

Errata (2)

User Guides (2)

Application Notes (11)

White Papers (3)

Miscellaneous (2)

Request a Unique Product ID (PID)

Development Kits and Reference Designs

Design Tools Expand All Collapse All

Software (42)

Schematics/Layout (14)

Training (3)

Product Matrix

Training & Resources

Featured Videos

Featured White Papers

USB Design Considerations

USB Connectivity in a Complex World

USB Simplified

Featured Tutorials and Courses

CP21x USB Bridge Tutorial

C8051T62x USB MCU Overview

C8051F38x USB MCU Overview

The USB Human Interface

Training and Resources

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C8051F38x USB Microcontrollers