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RM46L852CPGET

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

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Manufacturer Part：

RM46L852CPGET

Package：

LQFP-144 (20×20×1.4 mm, 0.5mm pitch)

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Product Manual
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Description

Product Overview

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.

Key Specifications

Core 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
Communication 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
Operating Temperature -40°C to +125°C
Package LQFP-144 (20×20 mm)

Features

  • 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

Applications

  • 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.

Pin Group Name Type Function
Power VCC, VSS, VCCIO Power Core (1.2V), I/O (3.3V), and ground
Debug JTAG (TCK, TMS, TDI, TDO, nTRST) I/O JTAG/SWD debug interface
Reset nRESET Input System reset (active-low)
CAN CAN1TX/RX, CAN2TX/RX I/O Dual CAN 2.0B interface
N2HET N2HET[0:31] I/O 32 high-end timer I/O for motor control
ADC ADCIN[0:23] Input 2× 12-bit ADC inputs (24 total)
GPIO Multiple ports I/O 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
Manufacturer Part Number Package Notes
TI RM48L952CZWT NFBGA-337 Higher pin count, more features
TI TMS570LS1227 LQFP-144 Similar, different safety certification path
Infineon AURIX TC275 LQFP-176 Tri-core, ASIL-D, competitive
Renesas RH850/F1KM-S4 LQFP-176 ASIL-D, automotive MCU
NXP MPC5777C LQFP-144 Power Architecture, ASIL-D
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Quality Assurance

Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.

1. Authorized & Genuine Sourcing Promise

All of our electronic components are procured from official authorized distributors and original manufacturers. We strictly reject counterfeits, refurbished parts, disassembled components and gray-market goods. Every product is guaranteed to be brand-new original parts and fully consistent with the original technical parameters. For branded products such as NXP IC series, we maintain complete supply channel documents to realize full product traceability.

2. Strict Full-batch Quality Inspection

We implement 100% full-batch quality control for all goods before shipment. Our professional QC team conducts multi-dimensional tests including appearance inspection, electrical parameter testing, performance verification and packaging check. Each batch of components is attached with complete inspection reports and batch records. We stick to zero-tolerance standards for defective products to ensure every piece of component meets industrial application requirements.

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Our products comply with a variety of international industry quality standards to adapt to high-standard application scenarios:
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4. Professional Reliability Control

For static-sensitive, moisture-sensitive and precision components such as ICs, PCBs, sensors and connectors, we carry out reliability screening in advance. Combined with standardized ESD anti-static packaging and vacuum moisture-proof packaging, we avoid component damage caused by static electricity, dampness or collision during storage and transportation, and retain the original performance of products.

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Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China

 

Shipping & Payment

Materialparts is a professional global supplier of electronic components with over 20 years of industry experience. We provide one-stop supply of passive components, integrated circuits, as well as parts for industrial control, automotive electronics, consumer electronics and medical devices. Below are the unified shipping and payment policies applicable to all orders, samples and bulk purchases worldwide.

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We offer a variety of secure and convenient payment methods to meet diverse business cooperation needs. Details are as follows:
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  1. Settlement Currency

     

    US Dollar (USD) is the default settlement currency. RMB is available for domestic customers.

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5. Local Pickup in Shenzhen

Local pickup service is available for customers in Shenzhen and surrounding areas:
  • Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong Province, China
  • Business Hours: 09:00 – 18:00, Monday to Friday. Closed on weekends and official public holidays.
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Contact Information

Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

Service & Packaging

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

Core Services

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We specialize in a full range of passive and active electronic components, including SMD resistors, power resistors, connectors, aviation connectors, LED beads, flexible circuit boards, printed circuit boards, and integrated circuits. Our professional team provides BOM list consolidation, component matching, and alternative model recommendation services. We support sample orders, small-batch trial production, and mass production orders with flexible MOQs to meet diverse procurement needs.

2. Genuine Product Guarantee & Full-process Quality Inspection

All products are sourced from official authorized channels and are 100% original genuine parts. Every batch of goods undergoes strict full-process quality inspection before delivery, with complete batch records and traceability documents provided. Our products comply with AEC-Q standards for automotive electronics and high-reliability specifications for medical devices. We eliminate counterfeits, refurbished parts and defective products from the source to secure your project production.

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Our customer service team responds promptly to inquiries and quotation requests. All in-stock orders will be processed within one working day. We provide stocking reservation services for long-term cooperative customers, effectively solving problems such as component shortages and unstable supply chains.

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6. Global Logistics & Document Services

We cooperate with mainstream international logistics providers including DHL, FedEx, UPS and TNT to achieve fast global delivery. We can provide complete export documents such as customs declaration files, commercial invoices and packing lists to ensure smooth customs clearance for international shipments. Local pickup is also available for customers in Shenzhen, China.

Professional Packaging Standards

Electronic components are sensitive to static electricity, collision, moisture and dust. We adopt industry-standard anti-static packaging solutions to fully ensure the integrity of goods during transportation and storage.

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We provide value-added services including personalized packaging, custom labeling and re-reeling according to customer requirements, fully matching your production and warehouse management standards.

Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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