Overview
The TMS570LS1227 device, produced by Texas Instruments, is a high-performance automotive-grade microcontroller designed for safety-critical applications. It features a dual CPU architecture running in lockstep, ensuring high reliability and redundancy. The microcontroller is based on the ARM Cortex-R4F 32-bit RISC CPU, which provides efficient processing with up to 298 DMIPS at 180 MHz. The device includes comprehensive safety features such as Error Correction Code (ECC) on flash and RAM, Built-In Self-Test (BIST) for CPU and on-chip RAMs, and error signaling modules. It is ideal for applications requiring real-time control and high safety standards.
Key Specifications
| Specification | Details |
|---|---|
| Processor | ARM Cortex-R4F 32-bit RISC CPU |
| System Clock Frequency | Up to 180 MHz |
| Core Supply Voltage | 1.14 to 1.32 V |
| I/O Supply Voltage | 3.0 to 3.6 V |
| Integrated Memory | 1.25MB of program flash with ECC, 192KB of RAM with ECC, 64KB of flash for emulated EEPROM with ECC |
| External Memory Interface | 16-bit EMIF |
| Timers and Peripherals | Two N2HET timing coprocessors, seven ePWM modules, six eCAP modules, two eQEP modules, two 12-bit ADCs |
| Communication Interfaces | FlexRay controller with 2 channels, three CAN controllers, Ethernet module (MII, RMII, MDIO), I2C, SPI, UART (SCI) |
| Operating Temperature | -40°C to 125°C |
| Package Options | 144-pin QFP, 337-ball BGA |
Key Features
- Dual CPUs running in lockstep for redundancy and safety
- ECC on flash and RAM interfaces for error correction
- Built-In Self-Test (BIST) for CPU and on-chip RAMs
- Error signaling module with error pin
- Voltage and clock monitoring
- Enhanced timing peripherals for motor control: N2HET, ePWM, eCAP, eQEP
- Two 12-bit Analog-to-Digital Converters (ADCs) supporting up to 24 inputs
- FlexRay controller with 2 channels, three CAN controllers, and Ethernet module
- Direct Memory Access (DMA) controller with 16 channels and 32 control packets
- Parameter Overlay Module (POM) for calibration capabilities
Applications
- Braking Systems (ABS and ESC)
- Active Driver Assistance Systems
- Electric Power Steering (EPS)
- Aerospace and Avionics
- Hybrid Electric Vehicle (HEV) and Electric Vehicle (EV) Inverter Systems
- Railway Communications
- Battery Management Systems
- Off-road Vehicles
Q & A
- What is the primary application of the TMS570LS1227 microcontroller?
The TMS570LS1227 is primarily used in safety-critical automotive and industrial applications, including braking systems, driver assistance systems, and electric power steering. - What CPU does the TMS570LS1227 use?
The TMS570LS1227 uses the ARM Cortex-R4F 32-bit RISC CPU. - What is the maximum system clock frequency of the TMS570LS1227?
The maximum system clock frequency is up to 180 MHz. - What safety features does the TMS570LS1227 include?
The device includes dual CPUs in lockstep, ECC on flash and RAM, BIST for CPU and on-chip RAMs, and error signaling modules. - How much integrated memory does the TMS570LS1227 have?
The device has 1.25MB of program flash, 192KB of RAM, and 64KB of flash for emulated EEPROM, all with ECC. - What communication interfaces are supported by the TMS570LS1227?
The device supports FlexRay, CAN, Ethernet (MII, RMII, MDIO), I2C, SPI, and UART (SCI) interfaces. - What are the operating temperature ranges for the TMS570LS1227?
The operating temperature range is -40°C to 125°C. - What package options are available for the TMS570LS1227?
The device is available in 144-pin QFP and 337-ball BGA packages. - Does the TMS570LS1227 support real-time control peripherals?
Yes, it includes enhanced timing peripherals such as N2HET, ePWM, eCAP, and eQEP modules. - How many ADC inputs does the TMS570LS1227 support?
The device supports up to 24 inputs through two 12-bit Analog-to-Digital Converters (ADCs).
