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Texas Instruments RM46L830CPGET
- Part No.:
- RM46L830CPGET
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
RM46L830CPGET.pdf
- Description:
- IC MCU 16/32BIT 1.25MB 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,710
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Product details
Overview
RM46L830CPGET from Texas Instruments is a safety-certified 32-bit ARM Cortex-R4F microcontroller for ASIL-D and SIL-3 applications, featuring dual lockstep CPUs, 1.25MB ECC flash, 192KB ECC RAM, 200-MHz operation, and integrated N2HET timing coprocessors. It serves as the central safety controller in industrial PLCs, medical infusion pumps, and wind turbine pitch control systems.
For engineers reviewing the RM46L830CPGET datasheet, RM46L830CPGET pinout, RM46L830CPGET application, or RM46L830CPGET equivalent, this page delivers verified technical context, validated pin functions, confirmed safety architecture details, and real-world implementation constraints - all specific to the RM46L830CPGET in its 144-pin LQFP (PGE) package.
Technical Context
The RM46L830CPGET implements a dual-CPU lockstep architecture with BIST, ECC on flash and SRAM, parity on peripheral memories, and loopback I/O for ISO 26262/IEC 61508 compliance. Its two N2HET modules (32 + 18 programmable channels) operate independently with dedicated HTUs and MPUs for deterministic real-time motor timing.
It integrates two 12-bit MibADCs (24 total inputs, 64-word parity-protected buffers each), three DCAN 2.0B controllers (1 Mbps), USB 2.0 host/device, and a 16-bit EMIF - all managed under a unified memory map with 12-region MPU enforcement and DMA-protected transfers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-R4F, 200 MHz, 332 DMIPS, FPU with single/double precision |
| Memory | 1.25 MB program flash with ECC; 192 KB data RAM with ECC; 64 KB emulated EEPROM with ECC |
| Safety Architecture | Dual lockstep CPUs, CPU/RAM BIST, error signaling module (nERROR pin), voltage/clock monitoring |
| Timing Peripherals | 2× N2HET (32 + 18 channels), 7× ePWM, 6× eCAP, 2× eQEP, RTI timer, FMPLL with slip detector |
| Analog Interface | 2× 12-bit MibADC (24 shared inputs, 64-word parity-protected buffer per ADC) |
| Communication | 3× DCAN 2.0B (1 Mbps), 3× MibSPI, 2× SPI, 2× SCI (1 with LIN 2.1), 1× I²C, USB 2.0 OHCI host + device |
| Package | 144-pin LQFP (PGE), 20.0 mm × 20.0 mm, green RoHS-compliant |
Pinout & Package
RM46L830CPGET uses a 144-pin LQFP (PGE) package with 101 GPIO-capable pins, including dedicated safety monitoring signals (nERROR, nPORRST), clock inputs (OSCIN/OSCOUT), and power domains (VCC, VCCIO, VCCAD, VSSAD).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| nERROR | Error signaling output | Active-low open-drain fault indicator driven by ESM; asserts on uncorrectable memory or clock errors |
| nPORRST | Power-on reset input | Asynchronous reset pin; must be held low during power ramp; initiates full system initialization sequence |
| VCCIO | I/O supply rail | 3.0–3.6 V supply for all digital I/O banks; decoupling required per TI layout guidelines |
| VCCAD | Analog reference supply | 3.3 V analog domain supply; powers ADC reference circuitry and analog front-end; requires separate filtering |
| OSCIN / OSCOUT | Crystal oscillator interface | Differential crystal connection for external 10–25 MHz source; supports bypass mode for external clock input |
| N2HET1[0..31] | N2HET1 channel I/O | 32 programmable high-resolution timing terminals; support PWM generation, capture, compare, or GIO modes |
| AD1IN[0..23] | MibADC1 analog input | 24-channel analog input bank; multiplexed with AD2IN[0..15]; supports sequenced group conversions |
Key Features
| Feature | Design Value |
|---|---|
| Lockstep Dual CPU | Real-time comparison of instruction execution between two Cortex-R4F cores; immediate fault detection and safe state entry |
| ECC Memory Protection | Single-bit error correction and double-bit error detection on 1.25 MB flash and 192 KB RAM - prevents silent data corruption |
| N2HET Timing Coprocessor | Two independent high-end timers with hardware angle generator and HTU DMA transfer - eliminates CPU overhead for motor commutation |
| Functional Safety Certification | Designed to meet ASIL-D (ISO 26262) and SIL-3 (IEC 61508); includes BIST, error signaling, and diagnostic libraries |
| EMIF Expansion Support | 16-bit external memory interface supporting asynchronous/synchronous SRAM, NOR flash, and FPGA peripherals up to 100 MHz |
Applications
| Industrial Safety PLC | Medical Infusion Pump |
|---|---|
Use Scenario: High-integrity programmable logic controller executing safety-critical motion control and emergency stop logic in factory automation. IC Role / Device Role / Timing Role: Primary safety controller managing dual-channel I/O monitoring, watchdog supervision, and fail-safe actuator shutdown via ePWM trip zones. Use Value: Enables certified SIL-3 operation with hardware-enforced lockstep execution, eliminating need for external safety monitors. |
Use Scenario: Precise volumetric drug delivery system requiring redundant flow sensing, pressure monitoring, and motor control. IC Role / Device Role / Timing Role: Central safety MCU coordinating ADC sampling of pressure sensors, eQEP-based stepper position tracking, and LIN communication with HMI. Use Value: Integrated BIST, ECC RAM, and error signaling satisfy FDA Class III device requirements without external safety ASICs. |
| Wind Turbine Pitch Control | Robotic Surgery Actuator |
Use Scenario: Real-time blade angle adjustment system responding to wind speed, vibration, and grid load signals in harsh outdoor environments. IC Role / Device Role / Timing Role: Deterministic timing controller using N2HET for synchronized servo drive pulses and DCAN for distributed sensor network communication. Use Value: N2HET's hardware angle generator and HTU enable sub-microsecond jitter-free PWM updates across multiple axes. |
Use Scenario: Compact, high-reliability actuator module for force-feedback surgical tools requiring precise torque control and fault containment. IC Role / Device Role / Timing Role: Safety-certified motion controller performing closed-loop current regulation via ePWM, current sense ADC, and eCAP-based encoder feedback. Use Value: On-chip ePWM deadband generation and trip zone protection prevent shoot-through faults in bidirectional motor drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar safety microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RM46L430PGET | 1 MB flash, 128 KB ECC RAM, same PGE package and pinout; lower memory capacity | Suitable for less complex safety logic where code footprint < 1 MB and RAM usage < 128 KB | Select when cost sensitivity outweighs memory headroom; retains identical safety architecture and peripheral set |
| RM46L852ZWT | 337-ball BGA (ZWT), 1.25 MB flash, 192 KB RAM, adds EMAC and ETM trace; different package and pinout | Required for Ethernet-connected safety gateways or debug-intensive development; not drop-in compatible | Choose only if BGA packaging, Ethernet, or real-time trace capability is mandatory; PCB redesign required |
Compared with RM46L430PGET, RM46L830CPGET provides 25% more flash and 50% more ECC RAM for larger safety firmware and runtime diagnostics; compared with RM46L852ZWT, it trades EMAC and trace for QFP manufacturability and legacy board compatibility - making RM46L830CPGET optimal for cost-sensitive, high-volume safety PLCs.
Availability
RM46L830CPGET is available at Aetrix Electronics and suitable for industrial safety PLCs, medical infusion pumps, and wind turbine pitch control systems requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability.
Supply support for RM46L830CPGET includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies, with deep expertise in functional safety and automotive-grade microcontrollers.
The RM46Lx30 product line was designed specifically for ASIL-D and SIL-3 safety-critical applications, integrating hardware redundancy, memory protection, and diagnostic infrastructure into a single-chip solution for industrial and medical systems.
FAQ
What safety certifications does the RM46L830CPGET support out of the box?
The RM46L830CPGET is architected to meet ISO 26262 ASIL-D and IEC 61508 SIL-3 requirements. It includes dual lockstep CPUs, ECC on flash and RAM, BIST for CPU and memory, error signaling via nERROR, and voltage/clock monitoring - all documented in TI's Functional Safety Manual SPNU515. No external components are required to achieve these integrity levels when used per TI's safety guide.
Does the RM46L830CPGET support USB device and host simultaneously?
Yes, the RM46L830CPGET integrates a USB 2.0 OHCI-compatible host controller (2 ports) and a USB 2.0 device controller in a single module. Both operate concurrently - for example, enabling the RM46L830CPGET to act as a USB host for a diagnostic dongle while serving as a USB device for PC-based firmware updates - with shared PHY resources managed by the USB_FUNC module.
How many ADC channels can be used concurrently on the RM46L830CPGET?
The RM46L830CPGET has two 12-bit MibADC modules (MibADC1 and MibADC2) sharing 24 analog inputs. Up to 16 channels are physically shared between them, but both ADCs can sample simultaneously - for instance, MibADC1 converting motor phase currents while MibADC2 monitors temperature and voltage rails - with independent trigger sources and 64-word parity-protected buffers per module.
Is the RM46L830CPGET pin-compatible with other RM46Lx30 variants in the PGE package?
Yes, all RM46Lx30 devices in the 144-pin LQFP (PGE) package - including RM46L430PGET and RM46L830CPGET - share identical pinouts, electrical characteristics, and mechanical dimensions. Firmware and PCB designs are interchangeable; only flash size (1 MB vs. 1.25 MB) and RAM size (128 KB vs. 192 KB) differ - enabling scalable safety platform design.
What is the role of the Parameter Overlay Module (POM) in the RM46L830CPGET?
The Parameter Overlay Module (POM) in the RM46L830CPGET enables runtime parameter updates without reprogramming flash. It reroutes flash read accesses to internal RAM or EMIF-mapped memory, allowing calibration constants, safety thresholds, or PID coefficients to be modified in volatile memory - reducing field update time and flash wear while maintaining functional safety integrity through protected memory regions.
RM46L830CPGET Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 144-LQFP
- Series:
- Hercules™ RM4 ARM® Cortex®-R4, Functional Safety (FuSa)
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-R4F
- Core Size:
- 16/32-Bit
- Speed:
- 200MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, LINbus, MibSPI, SCI, SPI, UART/USART, USB
- Peripherals:
- DMA, POR, PWM, WDT
- Number of I/O:
- 64
- Program Memory Size:
- 1.25MB (1.25M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 64K x 8
- RAM Size:
- 192K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.14V ~ 1.32V
- Data Converters:
- A/D 24x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
RM46L830CPGET FAQ
1.How can I place an order for RM46L830CPGET through Aetrix?
Please submit a Request for Quotation (RFQ) for RM46L830CPGET on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for RM46L830CPGET reliable?
The price and inventory of RM46L830CPGET are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RM46L830CPGET is usually 5 days.
3.What payment methods are accepted for RM46L830CPGET?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RM46L830CPGET transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RM46L830CPGET?
RM46L830CPGET orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RM46L830CPGET order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for RM46L830CPGET?
For technical support, including RM46L830CPGET datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RM46L830CPGET requirements.
6.How does Aetrix verify that RM46L830CPGET is sourced from the original manufacturer or authorized distributors?
All RM46L830CPGET products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that RM46L830CPGET meets industry standards.
7.What is the process for return or replacement of RM46L830CPGET?
All RM46L830CPGET units undergo pre-shipment inspection (PSI). If there is an issue with RM46L830CPGET, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The RM46L830CPGET part is unused and in its original packaging.
Return procedure for RM46L830CPGET:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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