​C8051F52x/53x Automotive & Industrial MCUs​

The C8051F52x/53x automotive and industrial MCUs are the smallest sized automotive-grade MCUs on the market with a high level of integration (12-bit ADC and 0.5% precision oscillator) in a tiny 3 mm x 3 mm or 4 mm x 4 mm package.
With on-chip Voltage Regulator, Power-On Reset, VDD monitor, Watchdog Timer and clock oscillator, the Automotive Microcontrollers, including the C8051F54x devices, are truly stand-alone System-on-a-Chip solutions. The Flash memory can be reprogrammed even in-circuit, providing non-volatile data storage, and also allowing field upgrades of the 8051 firmware. User software has complete control of all peripherals, and may individually shut down any or all peripherals for power savings.
 
 

Features

  • 25 MIPS 8051 CPU
  • 8 kB Flash memory
  • 256 B RAM
  • 24.5 MHz on-board oscillator (±0.5%)
  • 12-bit, 200 ksps ADC, ±1LSB INL
  • Up to 16 analog and digital I/O lines
  • 1.8 to 5.25 V input supply
  • –40 to 125 ºC operating range
  • On-chip comparator and temperature sensor
  • Packages:
    • 10-pin DFN
    • 20-pin QFN20
    • 20-pin TSSOP
 
 

Applications

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Documentation

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Data Sheet (1)

DescriptionVersionUpdatedSize
C8051F52x and C8051F53x 8 kB and 4 kB and 2 kB ISP Flash MCU Family
1.44/25/20121325 kB

Data Short (12)

DescriptionVersionUpdatedSize
C8051F520A Data Short
11.20.200812/8/200886 kB
C8051F521A Data Short
11.20.200811/20/200886 kB
C8051F523A Data Short
11.20.200811/20/200887 kB
C8051F524A Data Short
11.20.200811/20/200886 kB
C8051F526A Data Short
11.20.200811/20/200887 kB
C8051F527A Data Short
11.20.200811/20/200886 kB
C8051F530A Data Short
11.20.200811/20/200889 kB
C8051F531A Data Short
11.20.200811/20/200889 kB
C8051F533A Data Short
11.20.200811/20/200889 kB
C8051F534A Data Short
11.20.200811/20/200889 kB
C8051F536A Data Short
11.20.200811/20/200889 kB
C8051F537A Data Short
11.20.200811/20/200889 kB

Errata (1)

DescriptionVersionUpdatedSize
C8051F52x-F53x Rev A/B/C Errata
03.27.123/27/2012157 kB

User Guides (7)

Quick Start Guide (1)

DescriptionVersionUpdatedSize
MCU Quick-Start Guide Featuring the USB Debug Adapter
0.51246 kB

Application Notes (29)

DescriptionVersionUpdatedSize
AN0822: Simplicity Studio User's Guide
0.12/12/20141412 kB
AN0823: Simplicity Configurator User's Guide
0.12/12/2014692 kB
AN101: Configuring the Port I/O Crossbar Decoder
2.27/19/2013272 kB
AN103: Using the On-Chip Temperature Sensor
1.37/19/2013326 kB
AN104: Integrating Keil 8051 Tools into the IDE
3.06/18/2013525 kB
AN107: Implementing 16-bit PWM Using the PCA
1.1298 kB
AN111: Using the C8051Fxxx in 5 Volt Systems
1.37/20/2013243 kB
AN117: Using the C8051Fxxx On-Chip Interface Utilities DLL
3.37/19/2013268 kB
AN119: Calculating Settling Time for Switched Capacitor ADCs
1.27/19/2013301 kB
AN124: Pin Sharing Techniques for the C2 Interface
1.27/19/2013191 kB
AN125: Integrating Raisonance 8051 Tools into the IDE
1.3162 kB
AN126: Integrating Tasking 8051 Tools into the Silicon Labs IDE
2.4207 kB
AN127: FLASH Programming via the C2 Interface
1.21/15/2013179 kB
AN136: Production Programming Options for MCU Devices
1.37/19/2013200 kB
AN140: Integrating HI-TECH 8051 Tools into the IDE
1.3207 kB
AN198: Integrating SDCC 8051 Tools into the Silicon Labs IDE
0.2224 kB
AN201: Writing to Flash from Firmware
0.77/19/2013201 kB
AN203: C8051Fxxx Printed Circuit Board Design Notes
0.27/19/2013314 kB
AN236: Integrating IAR 8051 Tools into the Silicon Laboratories IDE
0.3442 kB
AN324: Advanced Encryption Standard
0.1176 kB
AN333: ToolStick Virtual Tools User's Guide
0.1511 kB
AN354: AB0 Prototyping Board User's Guide
Rev 0.111/7/200893 kB
AN365: Temperature-Compensated Oscillator Example
0.111/4/2009134 kB
AN397: Porting Considerations for Automotive MCUs
0.110/16/2008158 kB
AN533: Modular Bootloader Framework for Silicon Labs C8051Fxxx Microcontrollers
0.112/3/2010165 kB
AN568: EEPROM Emulations for Flash Microcontrollers
0.11/5/201158 kB
AN767: SMBus Bootloader
0.14/24/201397 kB
AN778: UART Bootloader
0.16/18/2013224 kB
AN798: EEPROM Emulation with Wear-Leveling for 8-Bit Flash MCUs
0.110/21/201361 kB

White Papers (3)

Miscellaneous (1)

DescriptionVersionUpdatedSize
C2 Specification
1.1273 kB

PCN (6)

Design Tools

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Software (42)

DescriptionVersionUpdatedSize
Interfacing an External SRAM to the C8051Fxxx
2 kB
16-bit PWM using an on-chip timer
1 kB
8 Bits Tools Installer
4.8012/11/2013560879 kB
Advanced encryption standard
20 kB
AN767SW: SMBus Bootloader Software
4/25/2013252 kB
AN778 Software
6/21/2013448 kB
CAN BOOTLOADER
239 kB
CAN OBD Reader Reference Design Kit
7081 kB
CapTouchSense game
1219 kB
Class D Software
1.012/12/2012550 kB
Configuration Wizard 2 Installer
4.4012/11/201316076 kB
Configuring the internal and external oscillators
7 kB
Configuring the Port I/O Crossbar Decoder
0 kB
EEPROM emulation for flash microcontrollers
16 kB
Flash programming via the C2 interface
97 kB
FLASHUtil Installer
4.3011/20/20137748 kB
Hex to Svf conversion utility software
7/17/20123623 kB
IDE Installer
4.8012/11/201325293 kB
Implementing 16-bit PWM using the PCA
6 kB
Implementing a real-time clock
2 kB
Improving ADC resolution by oversampling and averaging
3 kB
Integrating Hi-Tech 8051 tools into the Silicon Labs IDE
1 kB
Integrating IAR 8051 tools into the Silicon Labs IDE
12 kB
Integrating SDCC 8051 tools into the Silicon Labs IDE
7 kB
Integrating Tasking 8051 tools into the Silicon Labs IDE
1 kB
IR Performance Analysis Tool
7641 kB
Keil Eval Tools Installer
14034 kB
Low Pin-Count LCD Interface Software
4 kB
Magnetic Stripe Reader
20 kB
Modular bootloader framework for Silicon Labs MCUs
372 kB
Production Programmer
3.1011/20/20131005 kB
Software UART examples
13 kB
Three-Channel Power Sequencer.
25 kB
ToolStick Development Tools
2.60.18/2/201345699 kB
TouchPanel Reference Design
1443 kB
USB Debug Adapter Reset Utility
1.76/1/201349 kB
Using the on-chip temperature sensor
5 kB
uVision Driver
4.0011/20/20134978 kB
VCP Driver for WinCE60
282 kB
VCP Drivers for WinCE50
277 kB
Wireless Digital Full-Duplex Voice Transceiver
17 kB
Writing to flash from firmware
76 kB

Schematics/Layout (20)

Training (2)

Product Matrix
Zoom
Part NumberMCU CoreMHzFlashRAMDig I/O PinsTimers (16-bit)PCA ChannelsInternal Osc.ADC 1ADC 2DACTemp SensorVREFComparatorsDebug InterfaceOtherPackage TypePackage SizeAlternativeDev KitAEC-Q100CommunicationsFootnotes
C8051F520-C-AM8051258 kB0.25633±0.5%12-bit, 6-ch., 200 kspsYesYes1C2-40 to 125 °CDFN103x3 mmC8051F530ADK
YesLIN; SPI; UART
C8051F520-C-IM8051258 kB0.25633±0.5%12-bit, 6-ch., 200 kspsYesYes1C2-40 to 125 °CDFN103x3 mmC8051F530ADK
NoLIN; SPI; UART
C8051F521-C-AM8051258 kB0.25633±0.5%12-bit, 6-ch., 200 kspsYesYes1C2-40 to 125 °CDFN103x3 mmC8051F530ADK
YesSPI; UART
C8051F521-C-IM8051258 kB0.25633±0.5%12-bit, 6-ch., 200 kspsYesYes1C2-40 to 125 °CDFN103x3 mmC8051F530ADK
NoSPI; UART
C8051F523-C-AM8051254 kB0.25633±0.5%12-bit, 6-ch., 200 kspsYesYes1C2-40 to 125 °CDFN103x3 mmC8051F530ADK
YesLIN; SPI; UART
C8051F523-C-IM8051254 kB0.25633±0.5%12-bit, 6-ch., 200 kspsYesYes1C2-40 to 125 °CDFN103x3 mmC8051F530ADK
NoLIN; SPI; UART
C8051F524-C-AM8051254 kB0.25633±0.5%12-bit, 6-ch., 200 kspsYesYes1C2-40 to 125 °CDFN103x3 mmC8051F530ADK
YesSPI; UART
C8051F524-C-IM8051254 kB0.25633±0.5%12-bit, 6-ch., 200 kspsYesYes1C2-40 to 125 °CDFN103x3 mmC8051F530ADK
NoSPI; UART
C8051F526-C-AM8051252 kB0.25633±0.5%12-bit, 6-ch., 200 kspsYesYes1C2-40 to 125 °CDFN103x3 mmC8051F530ADK
YesLIN; SPI; UART
C8051F526-C-IM8051252 kB0.25633±0.5%12-bit, 6-ch., 200 kspsYesYes1C2-40 to 125 °CDFN103x3 mmC8051F530ADK
NoLIN; SPI; UART
C8051F527-C-AM8051252 kB0.25633±0.5%12-bit, 6-ch., 200 kspsYesYes1C2-40 to 125 °CDFN103x3 mmC8051F530ADK
YesSPI; UART
C8051F527-C-IM8051252 kB0.25633±0.5%12-bit, 6-ch., 200 kspsYesYes1C2-40 to 125 °CDFN103x3 mmC8051F530ADK
YesSPI; UART
C8051F530-C-AM8051258 kB0.251633±0.5%12-bit, 16-ch., 200 kspsYesYes1C2-40 to 125 °CQFN204x4 mmC8051F530ADK
YesLIN; SPI; UART
C8051F530-C-AT8051258 kB0.251633±0.5%12-bit, 16-ch., 200 kspsYesYes1C2-40 to 125 °CTSSOP206x6 mmC8051F530ADK
YesLIN; SPI; UART
C8051F530-C-IM8051258 kB0.251633±0.5%12-bit, 16-ch., 200 kspsYesYes1C2-40 to 125 °CQFN204x4 mmC8051F530ADK
NoLIN; SPI; UART
C8051F530-C-IT8051258 kB0.251633±0.5%12-bit, 16-ch., 200 kspsYesYes1C2-40 to 125 °CTSSOP206x6 mmC8051F530ADK
NoLIN; SPI; UART
C8051F531-C-AM8051268 kB0.251633±0.5%12-bit, 16-ch., 200 kspsYesYes1C2-40 to 125 °CQFN204x4 mmC8051F530ADK
YesSPI; UART
C8051F531-C-AT8051258 kB0.251633±0.5%12-bit, 16-ch., 200 kspsYesYes1C2-40 to 125 °CTSSOP206x6 mmC8051F530ADK
YesSPI; UART
C8051F531-C-IM8051258 kB0.251633±0.5%12-bit, 16-ch., 200 kspsYesYes1C2-40 to 125 °CQFN204x4 mmC8051F530ADK
NoSPI; UART
C8051F531-C-IT8051258 kB0.251633±0.5%12-bit, 16-ch., 200 kspsYesYes1C2-40 to 125 °CTSSOP206x6 mmC8051F530ADK
NoSPI; UART
C8051F533-C-AM8051254 kB0.251633±0.5%12-bit, 16-ch., 200 kspsYesYes1C2-40 to 125 °CQFN204x4 mmC8051F530ADK
YesLIN; SPI; UART
C8051F533-C-AT8051254 kB0.251633±0.5%12-bit, 16-ch., 200 kspsYesYes1C2-40 to 125 °CTSSOP206x6 mmC8051F530ADK
YesLIN; SPI; UART
C8051F533-C-IM8051254 kB0.251633±0.5%12-bit, 16-ch., 200 kspsYesYes1C2-40 to 125 °CQFN204x4 mmC8051F530ADK
NoLIN; SPI; UART
C8051F533-C-IT8051254 kB0.251633±0.5%12-bit, 16-ch., 200 kspsYesYes1C2-40 to 125 °CTSSOP206x6 mmC8051F530ADK
NoLIN; SPI; UART
C8051F534-C-AM8051254 kB0.251633±0.5%12-bit, 16-ch., 200 kspsYesYes1C2-40 to 125 °CQFN204x4 mmC8051F530ADK
YesSPI; UART
C8051F534-C-AT8051254 kB0.251633±0.5%12-bit, 16-ch., 200 kspsYesYes1C2-40 to 125 °CTSSOP206x6 mmC8051F530ADK
YesSPI; UART
C8051F534-C-IM8051254 kB0.251633±0.5%12-bit, 16-ch., 200 kspsYesYes1C2-40 to 125 °CQFN204x4 mmC8051F530ADK
NoSPI; UART
C8051F534-C-IT8051254 kB0.251633±0.5%12-bit, 16-ch., 200 kspsYesYes1C2-40 to 125 °CTSSOP206x6 mmC8051F530ADK
NoSPI; UART
C8051F536-C-AM8051252 kB0.251633±0.5%12-bit, 16-ch., 200 kspsYesYes1C2-40 to 125 °CQFN204x4 mmC8051F530ADK
YesLIN; SPI; UART
C8051F536-C-AT8051252 kB0.251633±0.5%12-bit, 16-ch., 200 kspsYesYes1C2-40 to 125 °CTSSOP206x6 mmC8051F530ADK
YesLIN; SPI; UART
C8051F536-C-IM8051252 kB0.251633±0.5%12-bit, 16-ch., 200 kspsYesYes1C2-40 to 125 °CQFN204x4 mmC8051F530ADK
NoLIN; SPI; UART
C8051F536-C-IT8051252 kB0.251633±0.5%12-bit, 16-ch., 200 kspsYesYes1C2-40 to 125 °CTSSOP206x6 mmC8051F530ADK
NoLIN; SPI; UART
C8051F537-C-AM8051252 kB0.251633±0.5%12-bit, 16-ch., 200 kspsYesYes1C2-40 to 125 °CQFN204x4 mmC8051F530ADK
YesSPI; UART
C8051F537-C-AT8051252 kB0.251633±0.5%12-bit, 16-ch., 200 kspsYesYes1C2-40 to 125 °CTSSOP206x6 mmC8051F530ADK
YesSPI; UART
C8051F537-C-IM8051252 kB0.251633±0.5%12-bit, 16-ch., 200 kspsYesYes1C2-40 to 125 °CQFN204x4 mmC8051F530ADK
NoSPI; UART
C8051F537-C-IT8051252 kB0.251633±0.5%12-bit, 16-ch., 200 kspsYesYes1C2-40 to 125 °CTSSOP206x6 mmC8051F530ADK
NoSPI; UART

Technologies

  • Dedicated LIN hardware (both master and slave; V 1.2 and V 2.1 compatible)
  • Ultra-precision oscillator (±0.5%)

Automotive and Industrial MCUs

All Silicon Labs' automotive microcontroller devices are designed to operate across the full automotive temperature (–40 to 125 ºC) and voltage (1.8 to 5.25 V) range. The C8051F5xxA Industrial and Automotive microcontroller family is the first to combine a ±0.5% integrated precision internal oscillator with 8 kB Flash, 25 MIPS, 12-bit ADC, dedicated LIN 2.1 controller, 16-bit timers/PWM, SPI, UART and six I/O lines in a small 3 mm x 3 mm, 10-pin DFN package. The C8051F53xA (-A and -I) family has the same feature set, but adds ten additional I/O lines and is offered in 20-pin QFN and TSSOP packages. Both families integrate additional analog features such as a programmable comparator, voltage regulator and on-chip temperature sensor to further reduce design complexity. This highly integrated architecture enables automotive electronics designers to simplify the design process and reduce system cost. All package options are lead-free, RoHS compliant and are qualified to AEC-Q100.
 
 

Highest Functional Density

These mixed-signal MCUs combine a high-speed 8051 CPU, Flash memory, best-in-class analog peripherals and digital signal processing in ultra-small packages, enabling full operational specification across the entire automotive voltage and temperature range with no design trade-offs. These Automotive microcontrollers offer the highest functional density of any available 8-bit automotive MCU.
 
 

Dedicated LIN 2.1 Controller

The LIN hardware implementation offers advantages over competing UART or software implementations. The dedicated message buffer and hardware generated flow control timing results in higher overall system bandwidth. The standard register-based control interface simplifies communication software development and minimizes code size.
 
 

Ultra-Precision Oscillator (±0.5%)

With ±0.5% tolerance across temperature (–40 to 125 ºC) and voltage (1.8 to 5.25 V), these Automotive MCUs offer a fully integrated LIN 2.1 master-mode implementation without any external timing components. The ultra-precision internal oscillator is configured to maximum instruction clock (25 MHz), resulting in no compromise between using an internal oscillator and achieving maximum CPU bandwidth.
 
 

Comprehensive Development Tools

The easiest way to begin development with the C8051F5xxA Automotive microcontroller family is with the fully functional “out-of-the-box” C8051F530ADK development kit, which includes all hardware and software required to begin application development. Additionally, the USB ToolStick platform is a fully contained evaluation and development system that includes a C8051F530A daughter card that enables the user to prototype a design and connect it directly into an existing LIN bus.
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Overview

Product Matrix

Documentation

Tools

Education

Technology

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