​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)

Data Short (12)

DescriptionVersionUpdatedSize
C8051F520A Data Short
11.20.200812/8/2008
C8051F521A Data Short
11.20.200811/20/2008
C8051F523A Data Short
11.20.200811/20/2008
C8051F524A Data Short
11.20.200811/20/2008
C8051F526A Data Short
11.20.200811/20/2008
C8051F527A Data Short
11.20.200811/20/2008
C8051F530A Data Short
11.20.200811/20/2008
C8051F531A Data Short
11.20.200811/20/2008
C8051F533A Data Short
11.20.200811/20/2008
C8051F534A Data Short
11.20.200811/20/2008
C8051F536A Data Short
11.20.200811/20/2008
C8051F537A Data Short
11.20.200811/20/2008

Errata (1)

DescriptionVersionUpdatedSize
C8051F52x-F53x Rev A/B/C Errata
03.27.123/27/2012

User Guides (8)

Quick Start Guide (1)

Application Notes (26)

DescriptionVersionUpdatedSize
AN0822: Simplicity Studio User's Guide
0.12/12/2014
AN101: Configuring the Port I/O Crossbar Decoder
2.27/19/2013
AN103: Using the On-Chip Temperature Sensor
1.37/19/2013
AN104: Integrating Keil 8051 Tools into the IDE
3.06/18/2013
AN107: Implementing 16-bit PWM Using the PCA
1.1
AN111: Using the C8051Fxxx in 5 Volt Systems
1.37/20/2013
AN117: Using the C8051Fxxx On-Chip Interface Utilities DLL
3.37/19/2013
AN119: Calculating Settling Time for Switched Capacitor ADCs
1.27/19/2013
AN124: Pin Sharing Techniques for the C2 Interface
1.27/19/2013
AN125: Integrating Raisonance 8051 Tools into the IDE
1.3
AN126: Integrating Tasking 8051 Tools into the Silicon Labs IDE
2.4
AN127: FLASH Programming via the C2 Interface
1.21/15/2013
AN136: Production Programming Options for MCU Devices
1.37/19/2013
AN140: Integrating HI-TECH 8051 Tools into the IDE
1.3
AN198: Integrating SDCC 8051 Tools into the Silicon Labs IDE
0.2
AN201: Writing to Flash from Firmware
0.77/19/2013
AN203: C8051Fxxx Printed Circuit Board Design Notes
0.27/19/2013
AN236: Integrating IAR 8051 Tools into the Silicon Laboratories IDE
0.3
AN324: Advanced Encryption Standard
0.1
AN365: Temperature-Compensated Oscillator Example
0.111/4/2009
AN397: Porting Considerations for Automotive MCUs
0.110/16/2008
AN533: Modular Bootloader Framework for Silicon Labs C8051Fxxx Microcontrollers
0.112/3/2010
AN568: EEPROM Emulations for Flash Microcontrollers
0.11/5/2011
AN767: SMBus Bootloader
0.14/24/2013
AN778: UART Bootloader
0.16/18/2013
AN798: EEPROM Emulation with Wear-Leveling for 8-Bit Flash MCUs
0.110/21/2013

White Papers (3)

Miscellaneous (1)

DescriptionVersionUpdatedSize
C2 Specification
1.1

PCN (6)

Design Tools

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Software (37)

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 KitDatasheetAEC-Q100CommunicationsFootnotes
C8051F520-C-AM8051258 kB0.25633±0.5%12-bit, 6-ch., 200 kspsYesYes1C2-40 to 125 °CDFN103x3 mmC8051F530ADK

YesLIN; SPI; UART
C8051F520-C-IM
Buy
Sample
8051258 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-IM
Buy
Sample
8051258 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-IM
Buy
Sample
8051254 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-IM
Buy
Sample
8051254 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-IM
Buy
Sample
8051252 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-IM
Buy
Sample
8051252 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-IM
Buy
Sample
8051258 kB0.251633±0.5%12-bit, 16-ch., 200 kspsYesYes1C2-40 to 125 °CQFN204x4 mmC8051F530ADK

NoLIN; SPI; UART
C8051F530-C-IT
Buy
Sample
8051258 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-IM
Buy
Sample
8051258 kB0.251633±0.5%12-bit, 16-ch., 200 kspsYesYes1C2-40 to 125 °CQFN204x4 mmC8051F530ADK

NoSPI; UART
C8051F531-C-IT
Buy
Sample
8051258 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-IM
Buy
Sample
8051254 kB0.251633±0.5%12-bit, 16-ch., 200 kspsYesYes1C2-40 to 125 °CQFN204x4 mmC8051F530ADK

NoLIN; SPI; UART
C8051F533-C-IT
Buy
Sample
8051254 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-IM
Buy
Sample
8051254 kB0.251633±0.5%12-bit, 16-ch., 200 kspsYesYes1C2-40 to 125 °CQFN204x4 mmC8051F530ADK

NoSPI; UART
C8051F534-C-IT
Buy
Sample
8051254 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-IM
Buy
Sample
8051252 kB0.251633±0.5%12-bit, 16-ch., 200 kspsYesYes1C2-40 to 125 °CQFN204x4 mmC8051F530ADK

NoLIN; SPI; UART
C8051F536-C-IT
Buy
Sample
8051252 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-IM
Buy
Sample
8051252 kB0.251633±0.5%12-bit, 16-ch., 200 kspsYesYes1C2-40 to 125 °CQFN204x4 mmC8051F530ADK

NoSPI; UART
C8051F537-C-IT
Buy
Sample
8051252 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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