Title Content
C8051F32x/34x USB Microcontrollers

Silicon Labs' USB Microcontrollers (MCUs), with embedded full-speed USB 2.0, make it easy to implement industry standard USB connectivity. USBXpress development software is available to provide a complete host and device side software solution.

The USB MCUs feature an on-board universal serial bus (USB) 2.0 function controller with an integrated transceiver and on-chip clock recovery. No external resistors, crystal, voltage regulator, EEPROM or other components are required. On-chip resources include a high-speed 8051 CPU with up to 64 kB Flash, UARTs, SMBus, SPI, timers, counters and PWM generators. On-chip analog features include a multi-channel 10-bit ADC, voltage reference, internal oscillator, comparators and a temperature sensor. Available in 28-pin QFN, 32-pin LQFP or 48-pin TQFP packages, these devices provide a single-chip solution for embedded USB applications.

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).

Note: The C8051F32x/4x USB microcontrollers are recommended replacement parts for the CP2501 USB touchscreen bridge, which is not recommended for new designs.

Download free white papers:
USB Design Considerations
USB Connectivity in a Complex World

Features

25–48 MIPS 8051 CPU
16–64 kB Flash memory
1536–5376 B RAM
USB 2.0
Integrated transceiver
Integrated clock recovery
1 kB buffer RAM
Full (12 Mbps), or low-speed operation
Control endpoint plus six bi-directional endpoint pipes
10-bit, 200 ksps ADC
Two asynchronous comparators
Voltage reference
Temperature sensor
15–40 Digital I/O

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

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Data Sheet (4)

Document Name	Description	Version	Last Updated
C8051F326.pdf	C8051F326/7 Data Sheet	1.1	9/2/2008
C8051F326-GDI.pdf	C8051F326-GDI Die Sales	1.0	2/14/2012
C8051F32x.pdf	C8051F32x Data Sheet	1.4	8/4/2009
C8051F34x.pdf	C8051F34x Data Sheet	1.4	10/7/2009

Data Short (18)

Document Name	Description	Version	Last Updated
C8051F320_Short.pdf	C8051F320 Data Short	1.9.2006
C8051F321_Short.pdf	C8051F321 Data Short	1.9.2006
C8051F326_short.pdf	C8051F326 Data Short	1.4.2006
C8051F327_short.pdf	C8051F327 Data Short	1.4.2006
C8051F340_short.pdf	C8051F340 Data Short	4.8.2009	5/28/2009
C8051F341_short.pdf	C8051F341 Data Short	4.8.2009	5/28/2009
C8051F342_short.pdf	C8051F342 Data Short	4.8.2009	5/28/2009
C8051F343_short.pdf	C8051F343 Data Short	4.8.2009	5/28/2009
C8051F344_short.pdf	C8051F344 Data Short	4.8.2009	5/28/2009
C8051F345_short.pdf	C8051F345 Data Short	4.8.2009	5/28/2009
C8051F346_short.pdf	C8051F346 Data Short	4.8.2009	5/28/2009
C8051F347_short.pdf	C8051F347 Data Short	4.8.2009	5/28/2009
C8051F348_short.pdf	C8051F348 Data Short	4.8.2009	5/28/2009
C8051F349_short.pdf	C8051F349 Data Short	4.8.2009	5/28/2009
C8051F34A_short.pdf	C8051F34A Data Short	4.8.2009	5/28/2009
C8051F34B_short.pdf	C8051F34B Data Short	4.8.2009	5/28/2009
C8051F34C_short.pdf	C8051F34C Data Short	9.24.2009	10/28/2009
C8051F34D_short.pdf	C8051F34D Data Short	9.24.2009	10/28/2009

Errata (1)

Document Name	Description	Version	Last Updated
USBTimeoutErrata.pdf	USB Timeout Errata	013111	3/30/2011

User Guides (15)

Document Name	Description	Version	Last Updated
C8051F326-DK.pdf	C8051F326-DK User Guide	0.2
C8051F32x-DK.pdf	C8051F32x-DK User Guide	0.8
C8051F34x-DK.pdf	C8051F34x-DK User Guide	0.2
RF_to_USB-RD.pdf	RF-to-USB Reference Design 2 User's Guide	0.2	5/13/2011
Serial_Debug_Adapter_UG.pdf	RS232 Serial Adapter (EC2) User Guide	0.1
Si5xx-ML52x-EVB.pdf	Si5xx-ML52x-EVB User Guide	0.2	9/23/2009
ToolStick_F321_DC_UG.pdf	ToolStick C8051F321 Daughter Card User Guide	0.1
ToolStick_F327_DC_UG.pdf	ToolStick C8051F327 Daughter Card User Guide	0.1
ToolStick_F342_DC_UG.pdf	ToolStick C8051F342 Daughter Card User Guide	0.1
ToolStick_Debug_Adapter_UG.pdf	ToolStick Debug Adapter User Guide	0.1
ToolStick_Programming_Adapter_UG.pdf	Toolstick Programming Adapter User Guide	0.3	9/15/2008
USB_Debug_Adapter_UG.pdf	USB Debug Adapter User Guide	0.1
USB-MSD-RD.pdf	USB-MSD-RD User Guide	0.1
USB-Radio-RD.pdf	USB-RADIO-RD User Guide	1.0
WirelessMBus-EK.pdf	Wireless M-Bus Demonstration Kit User's Guide	0.1	2/22/2010

Application Notes (41)

Document Name	Description	Version	Last Updated
an101.pdf	AN101: Configuring the Port I/O Crossbar Decoder	2.1
an103.pdf	AN103: Using the On-Chip Temperature Sensor	1.2
an104.pdf	AN104: Integrating Keil 8051 Tools into the IDE	2.9	1/5/2011
an107.pdf	AN107: Implementing 16-bit PWM Using the PCA	1.1
an111.pdf	AN111: Using the C8051Fxxx in 5 Volt Systems	1.2	7/1/2008
an114.pdf	AN114: Hand Soldering Tutorial for Fine Pitch QFP Devices	1.1
an117.pdf	AN117: Using the C8051Fxxx On-Chip Interface Utilities DLL	3.2	7/29/2008
an119.pdf	AN119: Calculating Settling Time for Switched Capacitor ADCs	1.1
an124.pdf	AN124: Pin Sharing Techniques for the C2 Interface	1.1
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
an127.pdf	AN127: FLASH Programming via the C2 Interface	1.1
an136.pdf	AN136: Production Programming Options for MCU Devices	1.2	8/14/2008
an140.pdf	AN140: Integrating HI-TECH 8051 Tools into the IDE	1.3
an141.pdf	AN141: SMBus Communication for Small Form Factor Device Families	1.2
AN169.pdf	AN169: USBXpress® Programmer's Guide	2.2	11/30/2010
an189.pdf	AN189: MMC Data Logger Example	0.1
An191.pdf	AN191: Motor Control Software Examples	1.0
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
AN201.pdf	AN201: Writing to Flash from Firmware	0.6	5/8/2012
AN203.pdf	AN203: C8051Fxxx Printed Circuit Board Design Notes	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
an237.pdf	AN237: TCI/IP Library Programmer's Guide	0.6
AN249.pdf	AN249: Human Interface Device Tutorial	0.5	3/31/2011
AN264.pdf	AN264: USB FM Radio	0.1
AN282.pdf	AN282: USB Mass Storage Device Reference Design Programmer's Guide	0.1
AN295.pdf	AN295: USB Audio Class Tutorial	0.1
AN312.pdf	AN312: Power over Ethernet Voice Transmission Reference Design	0.1
an333.pdf	AN333: ToolStick Virtual Tools User's Guide	0.1
an335.pdf	AN335: USB Driver Installation Utility	0.3	11/8/2010
an354.pdf	AN354: AB0 Prototyping Board User's Guide	Rev 0.1	11/7/2008
AN368.pdf	AN368: Differences between the C8051F34A and the C8051T62x and C8051T32x Device Families	0.2	3/30/2011
AN451.pdf	AN451: Wireless M-Bus Software Implementation	0.1	2/22/2010
AN452.pdf	AN452: Wireless M-Bus Stack Programmer's Guide	0.1	2/22/2010
AN520.pdf	AN520: CMOS Advanced Galvanic Isolators for Medical Electronics	0.1	6/17/2010
AN532.pdf	AN532: HID Library API Specification	0.1	9/8/2010
AN533.pdf	AN533: Modular Bootloader Framework for Silicon Labs C8051Fxxx Microcontrollers	0.1	12/3/2010
AN568.pdf	AN568: EEPROM Emulations for Flash Microcontrollers	0.1	1/5/2011
AN588.pdf	AN588: Energy Harvesting Reference Design User's Guide	0.2	5/18/2011

White Papers (3)

Document Name	Description	Version	Last Updated
CIP-51.pdf	CIP-51 Performance for Standard Library Math Routines	2.1
Energy-Harvesting-Solution_WP.pdf	The Energy Harvesting Tipping Point for Wireless Sensor Applications	0.1	5/19/2011
Using-Low-Cost-OTP-Microcontrollers-to-Simplify-Embedded-Applications.pdf	Using Low-Cost OTP Microcontrollers to Simplify Embedded Applications

Miscellaneous (5)

Document Name	Description	Version	Last Updated
C2spec.pdf	C2 Specification	1.1
EnergyHarvesting-RD_qs_guide.pdf	Energy Harvesting-RD Quick-Start Guide	0.2	5/25/2011
MCU_QS_Guide_USB.pdf	MCU Quick-Start Guide Featuring the USB Debug Adapter	0.5
USB-MSD-RD_qs_guide.pdf	USB-MSD-RD Quick Start Guide	0.1
Wireless_MBus_QSG.pdf	Wireless M-Bus Quick Start Guide	0.1	2/16/2010

PCN (7)

Document Name	Description	Version	Last Updated
1110051 C-Pak as a Tape and Reel Supplier std.pdf	1110051 C-Pak as a Tape and Reel Supplier std
0912173-MCU_48-TQFP-7x7_Test_Site_Expansion-ASECL.pdf	Additional Qualified Test Site for MCU 48-TQFP-7x7 Device Family – ASE Chung-Li
1002101-MCU_32LQFP_14SOIC_Family_Test_Site_Expand_ASECL_Std.pdf	MCU 32LQFP/14SOIC Family Test Site Expand ASECL Std
1004221A.pdf	MCU DFN/QFN/TQFN/TQFP Pkg Test Site Expand-ASECL Grp1of2 Std
1005191A.pdf	MCU DFN/QFN/TQFN/TQFP Pkg Test Site Expand-ASECL, Grp2of2 Std
1005191.pdf	MCU DFN/QFN/TQFN/TQFP Pkg Test Site Expand-ASECL, Grp2of2, Std
1011021.pdf	MCU Fab(TSMC) & Assy(ASECL)Site Expansion Std

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 (58)

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
CapTouchSenseDC_Senso_Web.zip	CapTouchSense game
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
an127sw.zip	Flash programming via the C2 interface
UtilDLL.exe	FLASHUtil Installer	4.00	12/7/2011
Hex2Svf_Installer.exe	Hex to Svf conversion utility software
AN532SW.zip	HID Library API Specification	0.1	9/30/2010
AN249SW.zip	Human Interface Device Tutorial
mcu_ide.exe	IDE Installer	4.40	12/7/2011
an107sw.zip	Implementing 16-bit PWM using the PCA
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
AN189SW.zip	MMC Data Logger Example
an533sw.zip	Modular bootloader framework for Silicon Labs MCUs
an191sw.zip	Motor control software examples
an358sw.zip	Optimizing Low Power Operation of the 'F9xx
PoE_Voice_RD_Setup.zip	PoE Voice Transmission RD Software
MCUProductionProgrammer.zip	Production Programmer	2.70	12/7/2011
RF_to_USB_RD.zip	RF to USB Reference Design
RF_to_USB_RD.exe	RF to USB Reference Design
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
an220sw.zip	USB Driver Customization	6.5	11/28/2011
an335sw.zip	USB Driver Installation Utility	3.4	10/14/2011
AN264SW.zip	USB FM Radio
USBRadio.zip	USB FM Radio Player
AN282SW.zip	USB MSD Reference Design Firmware Overview
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
an103sw.zip	Using the on-chip temperature sensor
SiC8051F_uVision.exe	uVision Driver	3.60	12/7/2011
VCP_WinCE60.zip	VCP Driver for WinCE60
VCP_WinCE50.zip	VCP Drivers for WinCE50
Wireless_Meter_Bus.exe	Wireless Meter Bus
Wireless_Meter_Bus_EK.zip	Wireless Meter Bus Evaluation Kit
Wireless_Meter_Bus_Stack.zip	Wireless Meter Bus Stack
AN201SW.zip	Writing to flash from firmware

Schematics/Layout (11)

Document Name	Description	Version
1000-TCB1_C_470.ZIP	1000-TCB1 C 470 Schematics and Layout
1000-TCB1_C_915.ZIP	1000-TCB1 C 915 Schematics and Layout
1002-TCB1_D_434.ZIP	1002-TCB1 D 434 Schematics and Layout
1002-TCB1_D_868.ZIP	1002-TCB1 D 868 Schematics and Layout
1004-TCB1_D_868.ZIP	1004-TCB1 D 868 Schematics and Layout
ULADI_SiliconLabs_Reader.exe	ADI Ultra-Librarian Reader for CAD/CAE Schematic Footprints and Symbols .bxl Files
C8051F320.bxl	C8051F320 CAD/CAE Schematic Footprints and Symbols	1.0
C8051F321.bxl	C8051F321 CAD/CAE Schematic Footprints and Symbols	1.0
C8051F326.bxl	C8051F326 CAD/CAE Schematic Footprints and Symbols	1.0
C8051F340.bxl	C8051F340 CAD/CAE Schematic Footprints and Symbols	1.0
toolstickdctemplate.zip	ToolStick Daughter Card Template

Training (4)

Document Name	Description	Version	Updated
8051_Instruction_Set.pdf	8051 Instruction Set
Simplifying Microcontroller Development through Compiler Flexibility.pdf	Simplifying Microcontroller Development through Compiler Flexibility
USB_HID.pdf	USB Human Interface Device Class
USB_Overview.pdf	USB Overview

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
C8051F320	Data Sheet Data Short	8051	25	16 kB	2.25	25	USB, UART, I2C, SPI	4	5	±1.5%	10-bit, 17-ch., 200 ksps			Yes	Yes	2	C2		32-pin, 9x9, LQFP	C8051F320DK
C8051F321	Data Sheet Data Short	8051	25	16 kB	2.25	21	USB, UART, I2C, SPI	4	5	±1.5%	10-bit, 13-ch., 200 ksps			Yes	Yes	2	C2		28-pin, 5x5, QFN	C8051F320DK
C8051F326	Data Sheet Data Short	8051	25	16 kB	1.5	15	USB, UART	2		±1.5%				No	No		C2	Separate I/O Supply Pin	28-pin, 5x5, QFN	C8051F326DK
C8051F327	Data Sheet Data Short	8051	25	16 kB	1.5	15	USB, UART	2		±1.5%				No	No		C2	Fixed I/O Supply Pin	28-pin, 5x5, QFN	C8051F326DK
C8051F340-GQ	Data Sheet Data Short	8051	48	64 kB	4.25	40	USB, 2 x UART, I2C, SPI, EMIF	4	5	±1.5%	10-bit, 20-ch., 200 ksps			Yes	Yes	2	C2		48-pin, 9x9, TQFP	C8051F340DK
C8051F341-GQ	Data Sheet Data Short	8051	48	32 kB	2.25	40	USB, 2 x UART, I2C, SPI, EMIF	4	5	±1.5%	10-bit, 20-ch., 200 ksps			Yes	Yes	2	C2		48-pin, 9x9, TQFP	C8051F340DK
C8051F342-GM	Data Sheet Data Short	8051	48	64 kB	4.25	25	USB, UART, I2C, SPI	4	5	±1.5%	10-bit, 21-ch., 200 ksps	—	—	Yes	Yes	2	C2		32-pin, 5x5, QFN	C8051F340DK
C8051F342-GQ	Data Sheet Data Short	8051	48	64 kB	4.25	25	USB, UART, I2C, SPI	4	5	±1.5%	10-bit, 21-ch., 200 ksps			Yes	Yes	2	C2		32-pin, 9x9, LQFP	C8051F340DK
C8051F343-GM	Data Sheet Data Short	8051	48	32 kB	2.25	25	USB, UART, I2C, SPI	4	5	±1.5%	10-bit, 21-ch., 200 ksps	—	—	Yes	Yes	2	C2		32-pin, 5x5, QFN	C8051F340DK
C8051F343-GQ	Data Sheet Data Short	8051	48	32 kB	2.25	25	USB, UART, I2C, SPI	4	5	±1.5%	10-bit, 21-ch., 200 ksps			Yes	Yes	2	C2		32-pin, 9x9, LQFP	C8051F340DK
C8051F344-GQ	Data Sheet Data Short	8051	25	64 kB	4.25	40	USB, 2 x UART, I2C, SPI, EMIF	4	5	±1.5%	10-bit, 20-ch., 200 ksps			Yes	Yes	2	C2		48-pin, 9x9, TQFP	C8051F340DK
C8051F345-GQ	Data Sheet Data Short	8051	25	32 kB	2.25	40	USB, 2 x UART, I2C, SPI, EMIF	4	5	±1.5%	10-bit, 20-ch., 200 ksps			Yes	Yes	2	C2		48-pin, 9x9, TQFP	C8051F340DK
C8051F346-GM	Data Sheet Data Short	8051	25	64 kB	4.25	25	USB, UART, I2C, SPI	4	5	±1.5%	10-bit, 21-ch., 200 ksps	—	—	Yes	Yes	2	C2		32-pin, 5x5, QFN	C8051F340DK
C8051F346-GQ	Data Sheet Data Short	8051	25	64 kB	4.25	25	USB, UART, I2C, SPI	4	5	±1.5%	10-bit, 21-ch., 200 ksps			Yes	Yes	2	C2		32-pin, 9x9, LQFP	C8051F340DK
C8051F347-GM	Data Sheet Data Short	8051	25	32 kB	2.25	25	USB, UART, I2C, SPI	4	5	±1.5%	10-bit, 21-ch., 200 ksps	—	—	Yes	Yes	2	C2		32-pin, 5x5, QFN	C8051F340DK
C8051F347-GQ	Data Sheet Data Short	8051	25	32 kB	2.25	25	USB, UART, I2C, SPI	4	5	±1.5%	10-bit, 21-ch., 200 ksps			Yes	Yes	2	C2		32-pin, 9x9, LQFP	C8051F340DK
C8051F348-GQ	Data Sheet Data Short	8051	25	32 kB	2.25	40	I2C, SPI, 2 x UART, USB, EMIF	4	5	1.5%	—	—	—	No	No	2	C2		48-pin, 9x9, TQFP	C8051F340DK
C8051F349-GM	Data Sheet Data Short	8051	25	32 kB	2.25	25	I2C, SPI, UART, USB	4	5	1.5%	—	—	—	No	No	2	C2		32-pin, 5x5, QFN	C8051F340DK
C8051F349-GQ	Data Sheet Data Short	8051	25	32 kB	2.25	25	I2C, SPI, UART, USB	4	5	1.5%	—	—	—	No	No	2	C2		32-pin, 9x9, LQFP	C8051F340DK
C8051F34A-GM	Data Sheet Data Short	8051	48	64 kB	4.25	25	USB, 2 x UART, I2C, SPI	4	5	±1.5%	10-bit, 21 ch., 200 ksps	—	—	Yes	Yes	2	C2	—	32-pin, 5x5, QFN	C8051F340DK
C8051F34A-GQ	Data Sheet Data Short	8051	48	64 kB	4.25	25	USB, 2 x UART, I2C, SPI	4	5	±1.5%	10-bit, 21 ch., 200 ksps	—	—	Yes	Yes	2	C2	—	32-pin, 9x9, LQFP	C8051F340DK
C8051F34B-GM	Data Sheet Data Short	8051	48	32 kB	2.25	25	USB, 2 x UART, I2C, SPI	4	5	±1.5%	10-bit, 21 ch., 200 ksps	—	—	Yes	Yes	2	C2	—	32-pin, 5x5, QFN	C8051F340DK
C8051F34B-GQ	Data Sheet Data Short	8051	48	32 kB	2.25	25	USB, 2 x UART, I2C, SPI	4	5	±1.5%	10-bit, 21 ch., 200 ksps	—	—	Yes	Yes	2	C2	—	32-pin, 9x9, LQFP	C8051F340DK
C8051F34C-GQ	Data Sheet Data Sheet Data Short	8051	48	64 kB	5.25	40	USB, 2 x UART, I2C, SPI, EMIF	4	5	±1.5%	—	—	—	No	No	2	C2		48-pin, 9x9 TQFP	C8051F340DK
C8051F34D-GQ	Data Sheet Data Sheet Data Short	8051	48	64 kB	5.25	25	USB, UART, I2C, SPI	4	5	±1.5%	—	—	—	No	No	2	C2	—	32-pin, 5x5 QFN	C8051F340DK

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MCUs

Title ContentC8051F32x/34x USB Microcontrollers

Features

Applications

Technologies

Documentation Expand All Collapse All

Data Sheet (4)

Data Short (18)

Errata (1)

User Guides (15)

Application Notes (41)

White Papers (3)

Miscellaneous (5)

PCN (7)

Request a Unique Product ID (PID)

Development Kits and Reference Designs

Design Tools Expand All Collapse All

Software (58)

Schematics/Layout (11)

Training (4)

Product Matrix

Training & Resources

Featured Videos

Featured White Papers

USB Design Considerations

USB Connectivity in a Complex World

USB Simplified

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C8051F32x/34x USB Microcontrollers