{"id":6678,"date":"2026-06-19T01:16:09","date_gmt":"2026-06-19T01:16:09","guid":{"rendered":"https:\/\/materialparts.com\/rm46l852cpget-2\/"},"modified":"2026-06-19T01:16:09","modified_gmt":"2026-06-19T01:16:09","slug":"rm46l852cpget-2","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/rm46l852cpget-2\/","title":{"rendered":"RM46L852CPGET"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The RM46L852CPGET from Texas Instruments is a Hercules\u2122 ARM Cortex-R4F safety microcontroller running at 220 MHz with 1.25 MB Flash (ECC) and 192 KB SRAM (ECC). Designed for safety-critical applications, it features dual CPUs in lockstep, BIST logic, and comprehensive fault detection. With 3\u00d7 CAN, Ethernet MAC, USB, N2HET timing coprocessors, and 7\u00d7 ePWM modules in an LQFP-144 package, it targets industrial automation, medical, and automotive functional safety systems.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u6838\u5fc3<\/td>\nARM Cortex-R4F (dual lockstep) with FPU<\/td>\n<\/tr>\n
Max Clock Frequency<\/td>\n220 MHz (365 DMIPS, 1.66 DMIPS\/MHz)<\/td>\n<\/tr>\n
Flash Memory<\/td>\n1.25 MB with ECC + 64 KB EEPROM emulation with ECC<\/td>\n<\/tr>\n
SRAM<\/td>\n192 KB with ECC (single-bit correction, double-bit detection)<\/td>\n<\/tr>\n
Core Supply<\/td>\n1.14V to 1.32V<\/td>\n<\/tr>\n
I\/O Supply<\/td>\n3.0V to 3.6V<\/td>\n<\/tr>\n
ADC<\/td>\n2\u00d7 12-bit MibADC (24 + 16 channels)<\/td>\n<\/tr>\n
CAN<\/td>\n3\u00d7 DCAN (64 mailboxes each, CAN 2.0A\/B)<\/td>\n<\/tr>\n
\u4ee5\u592a\u7f51<\/td>\n10\/100 Mbps MAC (MII\/RMII\/MDIO)<\/td>\n<\/tr>\n
USB<\/td>\n2-port Host + 1 Full-Speed Device<\/td>\n<\/tr>\n
PWM<\/td>\n7\u00d7 ePWM, 6\u00d7 eCAP, 2\u00d7 eQEP<\/td>\n<\/tr>\n
N2HET<\/td>\n2\u00d7 (32 + 18 channels) with angle generator<\/td>\n<\/tr>\n
\u4ea4\u6d41<\/td>\n3\u00d7 MibSPI, 2\u00d7 SPI, 2\u00d7 UART (SCI), 1\u00d7 I2C, 1\u00d7 LIN<\/td>\n<\/tr>\n
DMA<\/td>\n16-channel with MPU protection<\/td>\n<\/tr>\n
Safety Features<\/td>\nDual CPU lockstep, ECC, BIST, ESM, clock\/voltage monitoring<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +105\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nLQFP-144 (PGE, 22\u00d722 mm)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Functional Safety-Compliant: dual CPUs in lockstep with ECC on all memories<\/li>\n
  • Built-In Self-Test (BIST) for CPU and on-chip RAMs<\/li>\n
  • Error Signaling Module (ESM) with error pin output<\/li>\n
  • Voltage and clock monitoring with frequency-modulated PLL<\/li>\n
  • Cortex-R4F FPU with single and double precision<\/li>\n
  • 12-region Memory Protection Unit (MPU)<\/li>\n
  • 16-bit External Memory Interface (EMIF)<\/li>\n
  • 128-channel Vectored Interrupt Module (VIM)<\/li>\n
  • Parameter Overlay Module (POM) for calibration<\/li>\n
  • Advanced JTAG Security Module (AJSM)<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Industrial safety PLCs and automation controllers<\/li>\n
    • Medical devices: ventilators, defibrillators, infusion pumps<\/li>\n
    • Power generation and distribution safety systems<\/li>\n
    • Motor drive and inverter safety controllers<\/li>\n
    • Automotive functional safety ECUs<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The RM46L852CPGET from Texas Instruments is a Hercules\u2122 ARM Cortex-R4F safety microcontroller running at 220 MHz with 1.25 MB Flash (ECC) and 192 KB SRAM (ECC). Designed for safety-critical applications, it features dual CPUs in lockstep, BIST logic, and comprehensive fault detection. With 3\u00d7 CAN, Ethernet MAC, USB, N2HET timing coprocessors, and 7\u00d7 […]<\/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":[],"chip_brand":[138],"class_list":["post-6678","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-microcontrollers-mcu","chip_brand-ti"],"acf":{"brief_explanation":"Hercules Cortex-R4F safety MCU, 220MHz, 1.25MB Flash ECC, lockstep, LQFP-144","date_code":"","package_case":"LQFP-144 PGE (22\u00d722\u00d71.45 mm, 0.5mm pitch)","in_stock":292,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/rm46l852.pdf","price":"$26.85 @ 60+","product_introduction":"The RM46L852CPGET from Texas Instruments is a Hercules safety microcontroller with dual lockstep ARM Cortex-R4F CPUs at 220 MHz, 1.25 MB Flash with ECC, 192 KB SRAM with ECC, and comprehensive safety features (BIST, ESM, voltage\/clock monitoring). With 3\u00d7 CAN, Ethernet MAC, USB, 7\u00d7 ePWM, 2\u00d7 N2HET timing coprocessors, and 2\u00d7 12-bit ADC in LQFP-144, it targets functional safety applications in industrial automation, medical devices, and power systems.","working_principle":"The RM46L852CPGET implements TI's Hercules safety architecture with dual ARM Cortex-R4F CPUs operating in lockstep. Both CPUs execute identical instruction streams; any divergence triggers the Error Signaling Module (ESM). The 8-stage pipeline Cortex-R4F includes single\/double-precision floating-point unit (FPU) for compute-intensive control algorithms. All Flash (1.25 MB) and SRAM (192 KB) are protected by ECC with single-bit error correction and double-bit error detection. Built-In Self-Test (BIST) runs at startup and can be scheduled during operation to verify CPU and RAM integrity. The N2HET (Next Generation High-End Timer) coprocessors are software-programmable timing processors with dedicated instruction RAM, executing timing operations independently of the main CPU. The crossbar interconnect provides deterministic peripheral access with arbitration prioritization. The FMPLL generates the 220 MHz system clock with a built-in slip detector for clock integrity monitoring.","pin_description":"\n
      Pin Group<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>\n
      Core Power<\/td>VCC (1.2V), VSS<\/td>Power<\/td>CPU core supply (1.14-1.32V)<\/td><\/tr>\n
      I\/O Power<\/td>VCCIO (3.3V), VSSIO<\/td>Power<\/td>I\/O supply (3.0-3.6V)<\/td><\/tr>\n
      ADC Power<\/td>VCCAD, VSSAD, VREFHI, VREFLO<\/td>Power<\/td>ADC analog supply and reference<\/td><\/tr>\n
      Reset<\/td>nPORRST, nRST<\/td>Input<\/td>Power-on reset and external reset<\/td><\/tr>\n
      Debug<\/td>TCK, TDI, TDO, TMS, nTRST<\/td>I\/O<\/td>JTAG debug interface<\/td><\/tr>\n
      Error<\/td>nERROR<\/td>Output<\/td>ESM error output (open-drain)<\/td><\/tr>\n
      CAN<\/td>CAN1RX\/TX, CAN2RX\/TX, CAN3RX\/TX<\/td>I\/O<\/td>3\u00d7 CAN bus transceiver interface<\/td><\/tr>\n
      Ethernet<\/td>MII\/RMII signals, MDIO\/MDCLK<\/td>I\/O<\/td>10\/100 Ethernet MAC interface<\/td><\/tr>\n
      USB<\/td>USB_DP\/DM, control signals<\/td>I\/O<\/td>USB Host and Device interface<\/td><\/tr>\n
      N2HET<\/td>N2HET1[0:31], N2HET2[0:17]<\/td>I\/O<\/td>50 timing I\/O channels<\/td><\/tr>\n
      GPIO<\/td>Up to 101 GPIO<\/td>I\/O<\/td>General-purpose I\/O with interrupt capability<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • Industrial safety PLCs: SIL-2\/SIL-3 compliant automation controllers<\/li>\n
      • Medical devices: ventilators, defibrillators, infusion\/insulin pumps<\/li>\n
      • Power generation safety: turbine and windmill control systems<\/li>\n
      • Motor drive safety: servo and inverter controllers with N2HET<\/li>\n
      • Automotive functional safety ECUs with CAN and Ethernet<\/li>\n<\/ul>","alternative_models":"\n
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>\n
        TI<\/td>RM48L952ZWT<\/td>NFBGA-337<\/td>Higher performance Hercules, BGA package<\/td><\/tr>\n
        TI<\/td>TMS570LS1227ZWT<\/td>NFBGA-337<\/td>Automotive Hercules, similar safety features<\/td><\/tr>\n
        Infineon<\/td>XMC4800-F144K2048<\/td>LQFP-144<\/td>Cortex-M4, 6\u00d7 CAN FD, industrial safety<\/td><\/tr>\n
        Renesas<\/td>RH850F1KM-S4<\/td>LQFP-144<\/td>Automotive safety MCU, RH850 core<\/td><\/tr>\n
        NXP<\/td>S32K344-MNP<\/td>LQFP-144<\/td>Cortex-M7, ASIL-D, automotive safety<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6678","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=6678"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6678\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=6678"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=6678"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=6678"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=6678"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}