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RM46L852CPGET


Cortex-R4F safety MCU, 220MHz, 1MB Flash, ECC, LQFP-144

890

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制造商零件:

RM46L852CPGET

包装:

LQFP-144 (20×20×1.4 mm, 0.5mm pitch)

品牌:
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说明

产品概览

The RM46L852CPGET from Texas Instruments is a Hercules TMS570RM ARM Cortex-R4F safety microcontroller with 1 MB Flash, 128 KB SRAM, and rich safety features. Running at up to 220 MHz with hardware floating-point unit, it is designed for IEC 61508 SIL-3 and ISO 26262 ASIL-D automotive and industrial safety applications including motor control, EV/HEV, and industrial drives.

主要规格

核心 ARM Cortex-R4F (32-bit)
Max Clock Frequency 220 MHz
Flash Memory 1 MB with ECC
SRAM 128 KB with ECC
FPU Single-precision hardware floating-point unit
ADC 2× 12-bit, 24 channels total
交流 2× CAN (DCAN), 3× LIN, 2× SPI, 2× SCI/UART, Ethernet MAC
Motor Control N2HET (up to 32 I/O), ePWM, eCAP, eQEP
Safety Features CPU self-test, ECC, watchdog, clock monitoring
Operating Voltage 3.3V I/O, 1.2V core
工作温度 -40°C to +125°C
包装 LQFP-144 (20×20 mm)

特点

  • ARM Cortex-R4F with FPU for real-time safety-critical processing
  • 220 MHz with 1 MB ECC-protected Flash and 128 KB ECC SRAM
  • End-to-end ECC on Flash and SRAM for data integrity
  • CPU self-test and built-in safety mechanisms
  • Clock monitoring and watchdog with window comparison
  • N2HET co-processor for dedicated motor control I/O
  • Dual CAN 2.0B for automotive networking
  • IEC 61508 SIL-3 and ISO 26262 ASIL-D capable

应用

  • Automotive EV/HEV motor inverter control
  • Electric power steering (EPS) control
  • Industrial drive and servo motor control
  • Railway and transportation safety systems
  • Medical equipment with safety requirements

The RM46L852CPGET from Texas Instruments is a Hercules ARM Cortex-R4F safety microcontroller running at 220 MHz with 1 MB ECC Flash, 128 KB ECC SRAM, and hardware FPU. Designed for IEC 61508 SIL-3 and ISO 26262 ASIL-D compliance, it integrates comprehensive safety mechanisms (ECC, CPU self-test, clock monitoring, watchdog) with rich motor control peripherals (N2HET, ePWM, eQEP) and dual CAN, making it ideal for EV motor inverters, EPS, and industrial safety-critical drives.

The RM46L852CPGET is built around the ARM Cortex-R4F core with a 7-stage pipeline, hardware FPU, and branch prediction for deterministic real-time operation at 220 MHz. The core connects to Flash and SRAM through an error-correcting code (ECC) memory controller that detects and corrects single-bit errors and detects double-bit errors. The N2HET (High-End Timer) co-processor provides dedicated timing I/O for motor control PWM generation, quadrature encoder interface, and capture/compare functions independent of the main CPU. Clock monitoring circuits verify the integrity of oscillators and PLLs. The built-in self-test (BIST) mechanisms verify CPU and memory integrity at startup and during runtime. All safety features are documented in the safety manual for system-level certification.

别针组 名称 类型 功能
电源 VCC, VSS, VCCIO 电源 Core (1.2V), I/O (3.3V), and ground
调试 JTAG (TCK, TMS, TDI, TDO, nTRST) 输入/输出 JTAG/SWD debug interface
重置 nRESET 输入 System reset (active-low)
CAN CAN1TX/RX, CAN2TX/RX 输入/输出 Dual CAN 2.0B interface
N2HET N2HET[0:31] 输入/输出 32 high-end timer I/O for motor control
ADC ADCIN[0:23] 输入 2× 12-bit ADC inputs (24 total)
GPIO Multiple ports 输入/输出 General-purpose I/O with MUX
  • Automotive EV/HEV traction inverter motor control
  • Electric power steering (EPS) and brake-by-wire control
  • Industrial servo and variable frequency drive control
  • Railway and transportation safety-critical systems
  • Medical equipment requiring IEC 61508 SIL-2/3 certification
制造商 部件编号 包装 说明
TI RM48L952CZWT NFBGA-337 Higher pin count, more features
TI TMS570LS1227 LQFP-144 Similar, different safety certification path
英飞凌 AURIX TC275 LQFP-176 Tri-core, ASIL-D, competitive
瑞萨 RH850/F1KM-S4 LQFP-176 ASIL-D, automotive MCU
恩智浦 MPC5777C LQFP-144 Power Architecture, ASIL-D
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Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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