Exploring the Cypress MB91520 Series: 32-bit FR81S Microcontroller for Automotive Devices
Microcontroller 80MHz LQFP
This article delves into the features, functions, and applications of the Cypress MB91520 series, a 32-bit FR81S microcontroller tailored for automotive devices. The detailed overview covers the FR81S CPU core, peripheral functions, memory configurations, built-in interfaces, unique features, and applications in automotive systems.
Product Introduction
Description
The Cypress MB91520 series comprises the FR81S CPU, featuring a 32-bit RISC load/store architecture pipeline with a maximum operating frequency of 80 MHz. The microcontroller offers exceptional support for embedded applications, with a rich set of built-in peripherals, and is designed to meet the stringent requirements of automotive systems.
Features
The MB91520 series presents a wide array of features including:
- 32-bit RISC load/store architecture pipeline with 5-stage structure
- Maximum operating frequency of 80 MHz
- General-purpose register: 32 bits × 16 sets
- High-level language support instructions
- Built-in memory protection function (MPU)
- Built-in FPU (floating point arithmetic)
- Clock generation with SSCG function
- Built-in flash memory capacity ranging from 256+64KB to 1024+64KB
- Built-in RAM capacity up to 128KB
- General-purpose ports with various configurations
- External bus interface
- DMA controller, A/D converter, and D/A converter
- Multi-function serial communication with UART, CSIO, LIN, I2C, and CAN support
- PPG, Input capture, Output compare, Real-time clock, and Base timer functions
Applications
The MB91520 series is specifically designed for various automotive applications including, but not limited to:
- Engine control systems
- Transmission control units
- Body control modules
- Automotive infotainment and telematics
- Advanced driver-assistance systems (ADAS)
- Automotive gateway and networking systems
- Electric vehicle (EV) and hybrid electric vehicle (HEV) control units
- Automotive lighting and climate control
FAQs
Q: What is the maximum operating frequency of the FR81S CPU in the MB91520 series?
A: The FR81S CPU has a maximum operating frequency of 80 MHz, providing high performance for automotive applications.
Q: Are there specific development tools and software available for programming the MB91520 series microcontrollers?
A: Cypress provides a range of development tools, including integrated development environments (IDEs) and programming tools, to support the programming and debugging of the MB91520 series for automotive applications.
Q: Can the MB91520 series microcontrollers be used in safety-critical systems within automotive environments?
A: Yes, the MB91520 series microcontrollers feature a built-in memory protection function (MPU) and comply with relevant automotive industry standards, making them suitable for use in safety-critical automotive systems.
Q: What are the key features that make the MB91520 series well-suited for electric vehicle (EV) and hybrid electric vehicle (HEV) control units?
A: The MB91520 series offers a comprehensive set of built-in peripherals, including advanced A/D converters, D/A converters, and multi-function serial communication, making them well-suited for EV and HEV control units.
Specifications
- TypeParameter
- Factory Lead Time21 Weeks
- Package / Case
refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.
LQFP - Operating Temperature (Max)
The parameter "Operating Temperature (Max)" in electronic components refers to the maximum temperature at which the component can safely operate without experiencing damage or performance degradation. This specification is crucial for ensuring the reliability and longevity of the component in various operating conditions. Exceeding the maximum operating temperature can lead to thermal stress, reduced efficiency, and ultimately failure of the component. It is important for designers and engineers to consider this parameter when selecting and using electronic components to ensure proper functionality and prevent potential issues related to overheating.
105°C - Memory TypesFLASH
- Operating Temperature (Min)
The parameter "Operating Temperature (Min)" in electronic components refers to the minimum temperature at which the component is designed to operate effectively and reliably. This specification indicates the lowest temperature at which the component can function within its specified performance limits. Operating below this minimum temperature may result in reduced efficiency, slower response times, or even complete failure of the component. It is important to consider the operating temperature range of electronic components to ensure proper functionality and longevity in various environmental conditions.
-40°C - Number of I/Os44
- Published2017
- Frequency
In electronic components, the parameter "Frequency" refers to the rate at which a signal oscillates or cycles within a given period of time. It is typically measured in Hertz (Hz) and represents how many times a signal completes a full cycle in one second. Frequency is a crucial aspect in electronic components as it determines the behavior and performance of various devices such as oscillators, filters, and communication systems. Understanding the frequency characteristics of components is essential for designing and analyzing electronic circuits to ensure proper functionality and compatibility with other components in a system.
80MHz - Interface
In electronic components, the term "Interface" refers to the point at which two different systems, devices, or components connect and interact with each other. It can involve physical connections such as ports, connectors, or cables, as well as communication protocols and standards that facilitate the exchange of data or signals between the connected entities. The interface serves as a bridge that enables seamless communication and interoperability between different parts of a system or between different systems altogether. Designing a reliable and efficient interface is crucial in ensuring proper functionality and performance of electronic components and systems.
CAN, I2C, LIN, SPI, UART, USART - Memory Size
The memory capacity is the amount of data a device can store at any given time in its memory.
320kB - Oscillator Type
Wien Bridge Oscillator; RC Phase Shift Oscillator; Hartley Oscillator; Voltage Controlled Oscillator; Colpitts Oscillator; Clapp Oscillators; Crystal Oscillators; Armstrong Oscillator.
External - Peripherals
In the context of electronic components, "Peripherals" refer to devices or components that are connected to a main system or device to enhance its functionality or provide additional features. These peripherals can include input devices such as keyboards, mice, and touchscreens, as well as output devices like monitors, printers, and speakers. Other examples of peripherals include external storage devices, network adapters, and cameras. Essentially, peripherals are external devices that expand the capabilities of a main electronic system or device.
DMA, LVD, POR, PWM, WDT - RoHS Status
RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.
RoHS Compliant
Parts with Similar Specs
Datasheet PDF
- Datasheets :
LM258 Op-Amp IC : Uses, Pinout and Datasheet26 August 20216962
KA7500B Controller: Features, Pinout, and Datasheet [Video&FAQ]21 October 202161234
SI5347 Clock Generator: Features, Pinout and Datasheet18 April 20221220
MAX31865 Converter: Datasheet, Pinout and Benefits19 July 20216046
ITR2010:Through Hole Photointerrupters - Slot Type - Transistor Output ROHS08 January 20222132
A Comprehensive Guide to LTC6946IUFD-1 Clock/Frequency Synthesizer06 March 2024343
CP2102 Bridge Driver: Alternative, Pinout and Datasheet14 July 202112021
NXP MPX5700ASX Pressure Sensor: Features, Applications, and Integration07 June 2025340
Top 10 Technology Trends in the Global Semiconductor Industry in 202208 January 20229457
The Energy Internet - A New Era of Energy Management and Distribution11 July 20235923
Discovering New and Advanced Methodology for Determining the Dynamic Characterization of Wide Bandgap Devices15 March 20242910
Audio Transformer-Types, Functions and Working05 January 202616101
How to Understand the Oscilloscope Bandwidth?13 December 202111206
The Era of UFS 4.0, Announced?06 May 20227711
Car Sensors: Classification and Application27 October 202514302
ITA-3: A Step Towards a Sustainable Future for Global ICT and Economy14 September 20234385
Cypress Semiconductor
In Stock
United States
China
Canada
Japan
Russia
Germany
United Kingdom
Singapore
Italy
Hong Kong(China)
Taiwan(China)
France
Korea
Mexico
Netherlands
Malaysia
Austria
Spain
Switzerland
Poland
Thailand
Vietnam
India
United Arab Emirates
Afghanistan
Åland Islands
Albania
Algeria
American Samoa
Andorra
Angola
Anguilla
Antigua & Barbuda
Argentina
Armenia
Aruba
Australia
Azerbaijan
Bahamas
Bahrain
Bangladesh
Barbados
Belarus
Belgium
Belize
Benin
Bermuda
Bhutan
Bolivia
Bonaire, Sint Eustatius and Saba
Bosnia & Herzegovina
Botswana
Brazil
British Indian Ocean Territory
British Virgin Islands
Brunei
Bulgaria
Burkina Faso
Burundi
Cabo Verde
Cambodia
Cameroon
Cayman Islands
Central African Republic
Chad
Chile
Christmas Island
Cocos (Keeling) Islands
Colombia
Comoros
Congo
Congo (DRC)
Cook Islands
Costa Rica
Côte d’Ivoire
Croatia
Cuba
Curaçao
Cyprus
Czechia
Denmark
Djibouti
Dominica
Dominican Republic
Ecuador
Egypt
El Salvador
Equatorial Guinea
Eritrea
Estonia
Eswatini
Ethiopia
Falkland Islands
Faroe Islands
Fiji
Finland
French Guiana
French Polynesia
Gabon
Gambia
Georgia
Ghana
Gibraltar
Greece
Greenland
Grenada
Guadeloupe
Guam
Guatemala
Guernsey
Guinea
Guinea-Bissau
Guyana
Haiti
Honduras
Hungary
Iceland
Indonesia
Iran
Iraq
Ireland
Isle of Man
Israel
Jamaica
Jersey
Jordan
Kazakhstan
Kenya
Kiribati
Kosovo
Kuwait
Kyrgyzstan
Laos
Latvia
Lebanon
Lesotho
Liberia
Libya
Liechtenstein
Lithuania
Luxembourg
Macao(China)
Madagascar
Malawi
Maldives
Mali
Malta
Marshall Islands
Martinique
Mauritania
Mauritius
Mayotte
Micronesia
Moldova
Monaco
Mongolia
Montenegro
Montserrat
Morocco
Mozambique
Myanmar
Namibia
Nauru
Nepal
New Caledonia
New Zealand
Nicaragua
Niger
Nigeria
Niue
Norfolk Island
North Korea
North Macedonia
Northern Mariana Islands
Norway
Oman
Pakistan
Palau
Palestinian Authority
Panama
Papua New Guinea
Paraguay
Peru
Philippines
Pitcairn Islands
Portugal
Puerto Rico
Qatar
Réunion
Romania
Rwanda
Samoa
San Marino
São Tomé & Príncipe
Saudi Arabia
Senegal
Serbia
Seychelles
Sierra Leone
Sint Maarten
Slovakia
Slovenia
Solomon Islands
Somalia
South Africa
South Sudan
Sri Lanka
St Helena, Ascension, Tristan da Cunha
St. Barthélemy
St. Kitts & Nevis
St. Lucia
St. Martin
St. Pierre & Miquelon
St. Vincent & Grenadines
Sudan
Suriname
Svalbard & Jan Mayen
Sweden
Syria
Tajikistan
Tanzania
Timor-Leste
Togo
Tokelau
Tonga
Trinidad & Tobago
Tunisia
Turkey
Turkmenistan
Turks & Caicos Islands
Tuvalu
U.S. Outlying Islands
U.S. Virgin Islands
Uganda
Ukraine
Uruguay
Uzbekistan
Vanuatu
Vatican City
Venezuela
Wallis & Futuna
Yemen
Zambia
Zimbabwe


Product
Brand
Articles
Tools










