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High-Performance MCUs With Connectivity Peripherals and an Embedded Hardware Security Module (HSM)
PIC32CZ CA Family at a Glance
PIC32CZ CA90/91—Security Variant
The CA90 integrates a fully independent hardware security module into the CA80 connectivity platform. Security-related functions such as key management, cryptographic operations, NIST-compliant random numbers, memory verification, secure time and SSL/TLS acceleration are offloaded to dedicated hardware, so the application CPU does not access security internals.
The CA91 (HSM) exposes the same service APIs as the CA90. Software written for one variant runs on the other without modification, allowing selection based on security on workload requirements.
PIC32CZ CA80—Industrial Variant
The CA80 provides high-bandwidth connectivity within the family, including Gigabit Ethernet, up to six Controller Area Network Flexible Data-Rate (CAN FD) interfaces, dual High-Speed USB ports and up to 8 MB of dual-panel Flash memory. These features support concurrent protocol stacks while maintaining real-time control at 300 MHz.
PIC32CZ CA70/MC70—Industrial and Motor Control
The CA70 is pin-compatible with the SAM E70, S70 and V70 families, enabling Printed Circuit Board (PCB) reuse. It adds 512 KB of SRAM, Electromagnetic Interference (EMI)-resistant ePad packaging, AEC-Q100 Grade 2 qualification and an enhanced audio subsystem, without requiring schematic changes or recertification.
The MC70 uses the same core, memory and communication peripherals but is optimized for motor control applications. Features include complementary Pulse-Width Modulation (PWM) with dead-time insertion, synchronized Analog-to-Digital (ADC) sampling for phase current measurement and an integrated quadrature decoder.
Key Features
Security
The HSM available with the PIC32CZ CA90 family offers these features:
- RSA, DSA and ECC public key cryptography with up to 4096-bit key length
- AES encryption is fully compliant with NIST FIPS 197, 256-bit key length
- Hash/MAC with MD-5, SHA-1, SHA-256, SHA-224, SHA-384, SHA-512 and SHA3 capability
- True Random Number Generator (TRNG)
- Secure key storage
- Factory provisioning
Functional Safety
Hardware safety features include:
- ECC with fault injection on Flash and all SRAMs
- Global mBIST
- Memory Protection Unit (MPU)
- Write protection on some peripherals
- Clock failure detection with fail-safe internal RC oscillator
- Lookback on communications interfaces
Connectivity
Connectivity peripherals include:
- Up to 10 SERCOM interfaces including USART, I2C, SPI and LIN
- Up to two I2S modules with Time Division Multiplexing (TDM) support
- Up to two Serial Quad Interfaces (SQI)
- Up to six CAN FD ports with dedicated Direct Memory Access (DMA)
- One MediaLB® controller
- Up to two high-speed USB 2.0 ports
- 10/100/1000 Ethernet with dedicated DMA, IEEE® 1588 and Ethernet Audio/Video Bridging (AVB) support
Implementing Security Using PIC32CZ CA90 MCUs
The PIC32CZ CA90 family offers an embedded HSM for developing secure applications. To activate this HSM, you must execute a Non-Disclosure Agreement (NDA) for our MPLAB® Harmony Plus Security Solutions. The diagram below illustrates the process we will use to deliver the necessary information and resources to you after the NDA has been executed.*The HSM data sheet is only needed for developing the HSM firmware.
The PIC32CZ CA90’s HSM hardware and functionality are abstracted by MPLAB Harmony Crypto v4 as shown in this image.
Hardware Security Module (HSM)—Available on the PIC32CZ CA90 and CA91 Variants
HSM is an independent, secure subsystem that exposes a consistent set of services to the application layer. It provides the following services:
- Key management, including key generation, revocation, secure storage and lifecycle control
- Cryptographic services with hardware-accelerated cipher algorithms, including AES, Triple Data Encryption Standard (TDES), ChaCha20, RSA and Elliptic Curve Cryptography (ECC) with published throughput benchmarks
- Random number services using a True Random Number Generator (TRNG) designed to meet NIST SP 800-90B entropy requirements
- Memory verification of Flash and SRAM during startup and runtime
- Network security acceleration for internet Protocol security (iPsec) and Secure Sockets Layer/Transport Layer Security (SSL/TLS) processing
- Hardware
- Software
PIC32CZ CA80 Curiosity Ultra Development Board
Part Number: EV51S73A
The PIC32CZ CA80 Curiosity Ultra Development Board is the hardware platform for evaluating PIC32CZ CA80 MCUs. It is supported by MPLAB® Integrated Development Environment (IDE) and MPLAB Harmony and includes an embedded programmer/debugger. It provides connectors to easily add Arduino® Uno R3, MikroElektronika Click boards™ or Xplained Pro expansion boards for developing Bluetooth® audio, Internet of Things (IoT), robotics and other proof-of-concept designs.
PIC32CZ CA90 Curiosity Ultra Development Board
Part Number: EV16W43A
The PIC32CZ CA90 Curiosity Ultra Development Board is the hardware platform for evaluating PIC32CZ CA90 MCUs, which offer an embedded HSM. It is supported by MPLAB® Integrated Development Environment (IDE) and MPLAB Harmony and includes an embedded programmer/debugger. It provides connectors to easily add Arduino® Uno R3, MikroElektronika Click boards™ or Xplained Pro expansion boards for developing Bluetooth® audio, Internet of Things (IoT), robotics and other proof-of-concept designs.
PIC32CZ CA70 Curiosity Ultra Development Board
Part Number: EV56T44A
The PIC32CZ CA70 Curiosity Ultra Development Kit is a hardware platform for evaluating PIC32CZ2051CA70 Arm® Cortex®-M7-based microcontrollers (MCUs). This kit is supported by MPLAB® X Integrated Development Environment (IDE) to provide easy access to the features of the PIC32CZ CA70 and to help you integrate the device in a custom design.
The Curiosity Ultra series of evaluation kits includes an on-board embedded debugger, so no external tools are necessary to program or debug the PIC32CZ2051CA70 MCU.
MPLAB X IDE
Organize, write, test and debug your embedded software applications in MPLAB X IDE.
MPLAB XC Compiler
Build your embedded software with the TÜV SÜD-certified MPLAB XC32 Pro Functional Safety Compiler.
MPLAB Code Coverage
Verify and document your software test coverage with the MPLAB Code Coverage tool.
MPLAB Code Configurator
Use this free graphical programming environment to generate seamless, easy-to-understand C code to insert into your project.
MPLAB Harmony V3
The fully integrated embedded software development framework provides flexible and interoperable software modules.
MPLAB Discover
Explore this catalog of fully configured and complete source code, projects, examples and software applications to help jump-start your next project.
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- Data Sheet
- Application Notes
- Troubleshooting Checklist
- Errata
- Brochures/Quick Reference Guide
- Technical Briefs
- Supporting Collateral
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Documentation
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| PIC32CZ CA8x/CA9x Family Data Sheet | Download |
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| Basic 32-Bit MCU Design and Troubleshooting Checklist | Download |
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| PIC32CZ CA8x/CA9x Family Silicon Errata and Data Sheet Clarifications | Download |
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| How to Setup MPLAB Harmony v3 Software Development Framework | Download |
| MPLAB Harmony v3 Synchronous Drivers and Their Usage in FreeRTOS-Based Applications | Download |
| Creating the First Application on PIC32CZ CAx Microcontrollers Using MPLAB Harmony v3 with MPLAB Code Configurator (MCC) | Download |
| ADC Sequencing Using DMA and EVENT System on PIC32C and SAM MCUs Using MPLAB Harmony v3 and MCC | Download |
| Adding DMA Support for Peripherals on PIC32CZ CA and SAM E70/S70/V7x MCUs using MPLAB® Harmony v3 and MCC | Download |
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| MPLAB XC32 C/C++ Compiler User's Guide for PIC32C/SAM MCUs | Download |
Microchip Bootloaders
Bootloaders are used to upgrade firmware on a target device without using an external programmer or debugger. Commonly used with microcontrollers (MCUs), a bootloader contains code that loads and executes an application program. Bootloaders can also perform additional tasks such as validating the code integrity and authenticity.
Microchip University: Introduction to Functional Safety
This class covers the fundamentals of functional safety including terminology, standards, FMEDA, requirements and tools offered by Microchip.
PIC32CZ CA Videos Playlist
The PIC32CZ CA family of microcontrollers (MCUs) is designed for high-performance applications that require robust security and connectivity. Featuring integrated Hardware Security Modules (HSMs) and various connectivity options like I2S™, CAN FD and 10/100/1000 Ethernet, these MCUs are excellent for automotive and industrial applications. Based on an Arm® Cortex®-M7 processor, they offer up to 8 MB of Flash and 1 MB of SRAM and are supported by our MPLAB® X IDE and MPLAB Harmony framework for easy development.