{"id":9590,"date":"2026-07-04T04:22:24","date_gmt":"2026-07-04T04:22:24","guid":{"rendered":"https:\/\/materialparts.com\/atsam4c32ca-au\/"},"modified":"2026-07-04T04:22:24","modified_gmt":"2026-07-04T04:22:24","slug":"atsam4c32ca-au","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/atsam4c32ca-au\/","title":{"rendered":"ATSAM4C32CA-AU"},"content":{"rendered":"

\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n

The ATSAM4C32CA-AU is a Microchip (Atmel) SAM4C series 32-bit ARM Cortex-M4 dual-core microcontroller designed for smart metering and security-critical applications. Featuring 512 KB Flash, 128 KB SRAM, hardware cryptography, and tamper detection, it integrates two independent ARM Cortex-M4 cores in a 100-pin LQFP package.<\/p>\n

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CPU Core<\/td>\nDual ARM Cortex-M4 (CPU0 + CPU1)<\/td>\n<\/tr>\n
Max Frequency<\/td>\n120 MHz per core<\/td>\n<\/tr>\n
Flash Memory<\/td>\n512 KB (dual-bank)<\/td>\n<\/tr>\n
SRAM<\/td>\n128 KB<\/td>\n<\/tr>\n
Security<\/td>\nAES\/DES\/T-SHA, PKA, Secure Boot<\/td>\n<\/tr>\n
Peripherals<\/td>\nUART, SPI, I2C, ADC, DAC, Timer<\/td>\n<\/tr>\n
Tamper Detection<\/td>\nActive and passive tamper inputs<\/td>\n<\/tr>\n
Operating Voltage<\/td>\n1.08V-1.32V (core), 1.62V-3.6V (I\/O)<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40°C to +85°C<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\n100-LQFP (14 x 14 mm)<\/td>\n<\/tr>\n<\/table>\n

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    \n
  • Dual-core Cortex-M4 architecture with CPU0 for application and CPU1 for metrology\/security<\/li>\n
  • Hardware cryptographic engine supporting AES-128\/192\/256, DES, T-DES, SHA-1\/256, and RSA ECC via PKA<\/li>\n
  • Secure boot with RSA signature verification for firmware authentication<\/li>\n
  • Active and passive tamper detection circuits for physical attack protection<\/li>\n
  • Dual-bank Flash with read-while-write capability<\/li>\n
  • Metrology-grade 24-bit Sigma-Delta ADC for precision measurement<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Smart electricity meter (class 0.1-0.5 accuracy)<\/li>\n
    • Smart gas and water metering systems<\/li>\n
    • Secure industrial data acquisition terminals<\/li>\n
    • Payment terminal and point-of-sale controllers<\/li>\n
    • Energy management and sub-metering systems<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The ATSAM4C32CA-AU is a Microchip (Atmel) SAM4C series 32-bit ARM Cortex-M4 dual-core microcontroller designed for smart metering and security-critical applications. Featuring 512 KB Flash, 128 KB SRAM, hardware cryptography, and tamper detection, it integrates two independent ARM Cortex-M4 cores in a 100-pin LQFP package. Key Specifications CPU Core Dual ARM Cortex-M4 (CPU0 + […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,25],"tags":[836],"chip_brand":[134],"class_list":["post-9590","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-microcontrollers-mcu","tag-atsam4c32ca-au","chip_brand-microchip"],"acf":{"brief_explanation":"Dual-core ARM Cortex-M4 MCU, 120 MHz, 512KB Flash, hardware crypto, tamper detect, LQFP-100 for smart metering","date_code":"","package_case":"100-LQFP (14 x 14 mm)","in_stock":13925,"datasheet":"https:\/\/www.microchip.com\/en-us\/product\/ATSAM4C32CA","price":"$8.50 @ 1ku","product_introduction":"The ATSAM4C32CA-AU is a Microchip SAM4C series dual-core ARM Cortex-M4 microcontroller specifically designed for smart metering and security-critical applications. Integrating two independent Cortex-M4 cores running at up to 120 MHz, 512 KB dual-bank Flash, 128 KB SRAM, a hardware cryptographic engine (AES\/DES\/SHA\/PKA), active\/passive tamper detection, and a 24-bit Sigma-Delta metrology ADC, it provides a complete single-chip solution for smart electricity, gas, and water meters requiring high accuracy measurement and robust security against physical and cyber attacks.","working_principle":"The ATSAM4C32CA-AU operates with a dual-core architecture where CPU0 (application core) runs the main application, communication stacks, and user interface, while CPU1 (metrology\/security core) handles precision measurement calculations, cryptographic operations, and security monitoring independently. The hardware cryptographic accelerator offloads AES-128\/192\/256, DES, T-DES, SHA-1\/256, and public-key operations (RSA\/ECC via PKA) from the CPU cores. The secure boot mechanism verifies firmware integrity via RSA signature before execution. Active tamper detection generates dynamic patterns on output pins and monitors for disturbances, while passive tamper inputs detect physical intrusion attempts, triggering zeroization of sensitive data upon detection.","pin_description":"
      Pin Group<\/th>Function<\/th><\/tr>
      VDDCORE \/ VDDIO<\/td>Core (1.2V) and I\/O (1.62-3.6V) power supply<\/td><\/tr>
      PA0-PA31 \/ PB0-PB31<\/td>GPIO with alternate functions (UART, SPI, I2C, Timer)<\/td><\/tr>
      ADC0-ADC7<\/td>24-bit Sigma-Delta ADC analog inputs for metrology<\/td><\/tr>
      TAMPER0-TAMPER3<\/td>Active\/passive tamper detection I\/O<\/td><\/tr>
      JTAG\/SWD<\/td>Debug and programming interface<\/td><\/tr>
      ERASE<\/td>Flash erase pin (active low)<\/td><\/tr>
      NRST<\/td>System reset (active low)<\/td><\/tr><\/table>","application_scenarios":"
      • Three-phase smart electricity meter with class 0.2S accuracy and DLMS\/COSEM protocol<\/li>
      • Smart gas meter with ultrasonic measurement and remote shutoff control<\/li>
      • Prepaid electricity meter with encrypted credit token validation<\/li>
      • Industrial sub-metering controller with Modbus and M-Bus communication<\/li>
      • Secure data concentrator for smart meter neighborhood area network<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        ATSAM4C16CA-AU<\/td>Microchip<\/td>256KB Flash, 64KB SRAM variant<\/td><\/tr>
        ATSAM4C32CA-CU<\/td>Microchip<\/td>BGA package variant<\/td><\/tr>
        ATSAM4SD32CA<\/td>Microchip<\/td>Dual-core without metering ADC<\/td><\/tr>
        STM32L486RG<\/td>STMicroelectronics<\/td>Alternative crypto MCU<\/td><\/tr>
        MSP430F6779<\/td>Texas Instruments<\/td>Metering MCU with 3 independent 24-bit ADCs<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/9590","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/comments?post=9590"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/9590\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=9590"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=9590"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=9590"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=9590"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}