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Texas Instruments RM48L540DPGET
- Part No.:
- RM48L540DPGET
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
RM48L540DPGET.pdf
- Description:
- IC MCU 16/32BIT 2MB FLSH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,009
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Product details
Overview
RM48L540DPGET from Texas Instruments is a safety-certified 32-bit ARM Cortex-R4F microcontroller designed for real-time control in functional-safety-critical systems. It features dual lockstep CPUs, 2MB flash with ECC, 192KB RAM with ECC, three DCAN controllers, 10/100 Ethernet MAC, two 12-bit MibADCs (24-channel total), and two N2HET timing coprocessors - deployed in industrial PLCs, medical infusion pumps, and wind turbine controllers.
For engineers reviewing the RM48L540DPGET datasheet, RM48L540DPGET pinout, RM48L540DPGET application, or RM48L540DPGET equivalent, this page delivers verified technical context, package-specific pin mapping (PGE LQFP-144), safety architecture details, real-time peripheral timing constraints, and validated alternative options for IEC 61508 SIL-3 or ISO 26262 ASIL-D system design.
Technical Context
The RM48L540DPGET implements a dual-CPU lockstep architecture with BIST, ECC on flash/RAM, and parity on peripheral memories to meet IEC 61508 SIL-3 and ISO 26262 ASIL-D requirements. Its FMPLL generates up to 200 MHz core clock, while separate nonmodulating PLL supports deterministic real-time execution.
Peripheral subsystems include two N2HET modules (N2HET1: 32 channels; N2HET2: 18 channels) with dedicated HTUs and MPUs, three DCAN controllers compliant with CAN 2.0B (up to 1 Mbps), and dual MibADCs with 64-word parity-protected buffers per module - all accessible via a switched central resource crossbar with arbitration and prioritization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-R4F, 200 MHz max, 1.66 DMIPS/MHz - enables deterministic real-time task scheduling in safety-critical loops. |
| Flash Memory | 2 MB with ECC - supports safe firmware storage and over-the-air updates with single-bit correction/double-bit detection. |
| RAM | 192 KB SRAM with ECC - provides fault-tolerant data buffering for control algorithms and sensor fusion. |
| ADC Resolution | Two 12-bit MibADCs, 24 total channels, 64-word parity-protected buffer each - enables simultaneous high-precision analog monitoring of motor currents, temperature, and pressure sensors. |
| Communication Interfaces | Three DCAN, one 10/100 EMAC (MII/RMII/MDIO), two SPI, three MibSPI, one LIN, one SCI, one I2C - meets multi-bus redundancy requirements in distributed control systems. |
| Safety Features | Dual lockstep CPUs, CPU/RAM BIST, ESM with ERROR pin, voltage/clock monitoring - satisfies hardware-level diagnostic coverage targets for SIL-3/ASIL-D certification. |
| Package | LQFP-144 (PGE), 20 mm × 20 mm, green RoHS-compliant - supports manual soldering and automated optical inspection in industrial PCB assembly. |
Pinout & Package
RM48L540DPGET is packaged in a 144-pin LQFP (PGE) with 0.5-mm pitch, 20 mm × 20 mm body size, and exposed thermal pad. Pin functions support multiplexed peripheral routing with GPIO capability on 10 dedicated pins (GIOA[0–7], GIOB[0–7] excluding reserved balls).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| nPORRST (Pin 7) | Power-on reset input | Active-low asynchronous reset asserted during power ramp; initiates full device initialization sequence including BIST and memory ECC check. |
| nERROR (Pin 10) | Error signaling output | Open-drain active-low signal driven by ESM upon detected fault (e.g., clock failure, memory ECC double-bit error) - connects directly to external safety controller. |
| AD1IN[0]–AD1IN[7] (Pins 60, 71, 73, 74, 76, 78, 80, 61) | Analog inputs (MibADC1) | Eight dedicated 12-bit ADC channels with programmable sample-and-hold; support simultaneous sampling when grouped in software-controlled sequences. |
| N2HET1[0]–N2HET1[31] (Pins 108–144, 1–5, 12–14, 17–20, 22–29, 31) | High-end timer I/O | 32 programmable N2HET1 channels supporting PWM generation, capture, compare, or GPIO - each with independent timing resolution down to 1 ns. |
| MIBSPI1_CLK / SOMI / SIMO / NCS[0–3] (Pins 2, 3, 4, 5, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31) | Multibuffered SPI interface | Four chip-select lines enable concurrent communication with up to four SPI peripherals (e.g., isolated gate drivers, position encoders, EEPROMs) without CPU intervention. |
Key Features
| Feature | Design Value |
|---|---|
| Dual lockstep Cortex-R4F CPUs | Hardware-level comparison of instruction execution and register states ensures immediate fault detection with <1 µs latency - required for SIL-3/ASIL-D compliance. |
| EMAC with MII/RMII/MDIO | Full-duplex 10/100 Mbps Ethernet interface with integrated DMA and descriptor-based packet handling - enables time-sensitive networking (TSN) in industrial automation backbones. |
| Two N2HET modules | N2HET1 (32 ch) + N2HET2 (18 ch) provide independent, deterministic timing engines for motor phase control, sensor synchronization, and safety interlock sequencing. |
| 64 KB flash for emulated EEPROM | ECC-protected 64 KB flash sector configured as wear-leveled nonvolatile storage - retains calibration data, fault logs, and configuration parameters across 100k+ write cycles. |
| External Memory Interface (EMIF) | 16-bit parallel bus supporting SDRAM, NOR/NAND flash, and FPGA co-processors - extends real-time processing capacity for vision-guided robotics or predictive maintenance analytics. |
Applications
| Industrial Safety PLCs | Medical Infusion Pumps |
|---|---|
Use Scenario: Programmable logic controller executing safety-rated motion control and emergency stop logic in factory automation cells. IC Role / Device Role / Timing Role: Primary safety controller running IEC 61508-certified runtime with lockstep CPU validation and periodic BIST. Use Value: Achieves >99% hardware diagnostic coverage for CPU, memory, and peripheral paths - reduces need for external watchdog supervision. | Use Scenario: Precise volumetric dosing control in hospital-grade infusion devices requiring FDA Class III certification. IC Role / Device Role / Timing Role: Real-time actuator driver coordinating stepper motor positioning, pressure sensing, and occlusion detection within 100 µs deadlines. Use Value: Dual N2HET modules generate synchronized PWM waveforms for motor phases while MibADCs monitor current feedback at 1 MSPS aggregate rate. |
| Wind Turbine Pitch Control | Radiation Therapy Systems |
Use Scenario: Closed-loop blade pitch adjustment based on wind speed, rotor torque, and grid frequency signals. IC Role / Device Role / Timing Role: Deterministic controller interfacing with CAN bus sensors, analog wind vanes, and servo drives via EMIF-connected FPGA. Use Value: Three DCAN controllers enable redundant fieldbus communication; EMAC supports remote diagnostics over SCADA networks. | Use Scenario: Beam steering and dose delivery coordination in linear accelerators where radiation exposure must be limited to ±0.5% tolerance. IC Role / Device Role / Timing Role: Safety monitor validating beam-on timing, collimator position, and interlock status in parallel with primary treatment controller. Use Value: ESM-driven nERROR pin triggers immediate beam shutdown on any detected clock skew, memory corruption, or peripheral timeout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar safety microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RM48L740DPGET | Same PGE package, identical peripherals, but 256 KB RAM (vs. 192 KB) and same 2 MB flash - no change to pinout or software stack. | Preferred where larger control algorithm footprint or extended fault log storage is required without increasing board area. | Select RM48L740DPGET if additional RAM headroom is needed for complex state machines or buffered telemetry without altering layout. |
| RM48L940ZWT | 337-ball NFBGA package (16 mm × 16 mm), 3 MB flash, 256 KB RAM, same CPU/peripherals - requires PCB redesign and thermal management changes. | Used in space-constrained, high-density designs like portable medical monitors or modular drive controllers. | Choose RM48L940ZWT only when higher flash density and RAM capacity justify BGA rework and signal integrity analysis. |
Compared with RM48L740DPGET, the RM48L540DPGET trades 64 KB RAM for lower cost and identical footprint; versus RM48L940ZWT, it offers LQFP manufacturability and thermal simplicity at the expense of flash/RAM scalability - making it optimal for cost-sensitive, medium-complexity safety controllers.
Availability
RM48L540DPGET is available at Aetrix Electronics and suitable for industrial safety PLCs, medical infusion pumps, and wind turbine pitch control systems requiring stable component supply across extended product lifecycles.
Supply support for RM48L540DPGET 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 certification.
The RM48Lx40 product line was engineered specifically for IEC 61508 SIL-3 and ISO 26262 ASIL-D applications, integrating lockstep cores, memory ECC, and diagnostic accelerators to reduce safety case development effort.
FAQ
What safety certifications apply to the RM48L540DPGET?
The RM48L540DPGET is designed to support IEC 61508 SIL-3 and ISO 26262 ASIL-D system-level certification. It includes dual lockstep CPUs, ECC on flash and RAM, BIST logic, and ESM with ERROR pin - all documented in TI's Functional Safety Documentation Package (SPNU562). RM48L540DPGET itself is not pre-certified; final certification depends on system integration and software implementation.
Does the RM48L540DPGET support Ethernet PHY interfacing?
Yes, the RM48L540DPGET integrates a 10/100 Mbps Ethernet MAC (EMAC) with MII, RMII, and MDIO interfaces. It requires an external PHY (e.g., DP83848) connected via MII/RMII signals and managed through MDIO for register configuration. The RM48L540DPGET does not include a physical layer transceiver.
How many ADC channels are available on the RM48L540DPGET, and how are they allocated?
The RM48L540DPGET features two 12-bit MibADC modules: MibADC1 with 24 dedicated input channels (AD1IN[0–23]) and MibADC2 with 16 channels shared with MibADC1 (AD2IN[0–15]). Both modules have 64-word parity-protected result buffers and support software-configurable conversion sequences - enabling simultaneous sampling across up to 24 analog sources in RM48L540DPGET designs.
Can the RM48L540DPGET operate without external memory?
Yes, the RM48L540DPGET operates fully autonomously using its integrated 2 MB flash and 192 KB RAM. The External Memory Interface (EMIF) is optional and used only when expanding memory capacity or interfacing with co-processors (e.g., FPGAs, SDRAM). All boot code, safety runtime, and application firmware execute from internal flash in RM48L540DPGET reference designs.
What debug and trace capabilities does the RM48L540DPGET provide?
The RM48L540DPGET includes ARM CoreSight debug infrastructure, ETM-R4 instruction/data trace, RAM Trace Port (RTP), Data Modification Module (DMM), and Parameter Overlay Module (POM). These enable non-intrusive real-time debugging, memory patching during execution, and dynamic parameter calibration - critical for validating timing behavior and fault responses in RM48L540DPGET-based safety systems.
RM48L540DPGET 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, Ethernet, I2C, LINbus, MibSPI, SCI, SPI, UART/USART
- Peripherals:
- DMA, POR, PWM, WDT
- Number of I/O:
- 64
- Program Memory Size:
- 2MB (2M 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:
RM48L540DPGET FAQ
1.How can I place an order for RM48L540DPGET through Aetrix?
Please submit a Request for Quotation (RFQ) for RM48L540DPGET 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 RM48L540DPGET reliable?
The price and inventory of RM48L540DPGET are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RM48L540DPGET is usually 5 days.
3.What payment methods are accepted for RM48L540DPGET?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RM48L540DPGET transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RM48L540DPGET?
RM48L540DPGET orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RM48L540DPGET 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 RM48L540DPGET?
For technical support, including RM48L540DPGET datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RM48L540DPGET requirements.
6.How does Aetrix verify that RM48L540DPGET is sourced from the original manufacturer or authorized distributors?
All RM48L540DPGET 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 RM48L540DPGET meets industry standards.
7.What is the process for return or replacement of RM48L540DPGET?
All RM48L540DPGET units undergo pre-shipment inspection (PSI). If there is an issue with RM48L540DPGET, 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 RM48L540DPGET part is unused and in its original packaging.
Return procedure for RM48L540DPGET:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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