Overview
The TMS570LC4357-EP device, produced by Texas Instruments, is a high-performance automotive-grade microcontroller based on the ARM® Cortex®-R5F core. It is part of the Hercules TMS570 series and is designed for safety-critical applications. The device features dual-core lockstep CPUs with ECC-protected caches, built-in self-test (BIST) logic, and error signaling modules, making it highly reliable and robust. It supports various communication interfaces and peripherals, including Ethernet, FlexRay, CAN, and SPI, which are essential for real-time control-based applications. The device is also suitable for defense, aerospace, and medical applications due to its extended temperature range and controlled baseline production process.
Key Specifications
| Parameter | Specification |
|---|---|
| Processor | Dual-core ARM® Cortex®-R5F, 32-bit RISC CPU |
| Clock Speed | Up to 300 MHz |
| Performance | 1.66 DMIPS/MHz, up to 498 DMIPS |
| Memory | 4MB of program flash, 512KB of data RAM, 128KB of data flash for emulated EEPROM |
| Package | 337-ball Grid Array (GWT) |
| Operating Temperature Range | -55°C to 125°C |
| Supply Voltage | Core: 1.14 to 1.32 V, I/O: 3.0 to 3.6 V |
| Communication Interfaces | 10/100 Mbps Ethernet MAC, FlexRay controller, CAN, I2C, SPI, UART |
| Timers and Peripherals | Two Next Generation High-End Timer (N2HET) modules, 12-bit multibuffered ADC modules, ePWM, eCAP, eQEP |
Key Features
- Dual-core lockstep CPUs with ECC-protected caches for high reliability and safety.
- Built-in self-test (BIST) logic for CPU, high-end timers, and on-chip SRAMs.
- Error signaling module (ESM) with error pin and voltage and clock monitoring.
- FPU with single- and double-precision support and 16-region memory protection unit (MPU).
- 32KB of instruction and 32KB of data caches with ECC protection.
- Multiple communication interfaces including 10/100 Mbps Ethernet MAC, FlexRay controller, CAN, I2C, SPI, and UART.
- Two Next Generation High-End Timer (N2HET) modules and 12-bit multibuffered ADC modules.
- Enhanced timing peripherals such as ePWM, eCAP, and eQEP modules.
- Three on-die temperature sensors and up to 145 pins available for general-purpose I/O (GPIO).
- Advanced JTAG security module (AJSM) and trace and calibration capabilities.
Applications
- Braking systems (antilock brake systems and electronic stability control).
- Electric power steering (EPS).
- HEV and EV inverter systems.
- Battery-management systems.
- Active driver assistance systems.
- Aerospace and avionics.
- Railway communications.
- Off-road vehicles.
- Medical and defense applications due to its extended temperature range and controlled baseline production.
Q & A
- What is the TMS570LC4357-EP device based on?
The TMS570LC4357-EP device is based on the ARM® Cortex®-R5F core.
- What are the key features of the dual-core CPUs in the TMS570LC4357-EP?
The dual-core CPUs operate in lockstep with ECC-protected caches and support BIST logic for CPU and on-chip SRAMs.
- What is the maximum clock speed of the TMS570LC4357-EP?
The maximum clock speed is up to 300 MHz.
- What types of memory does the TMS570LC4357-EP have?
The device has 4MB of program flash, 512KB of data RAM, and 128KB of data flash for emulated EEPROM.
- What communication interfaces are supported by the TMS570LC4357-EP?
The device supports 10/100 Mbps Ethernet MAC, FlexRay controller, CAN, I2C, SPI, and UART interfaces.
- What are the key peripherals included in the TMS570LC4357-EP?
The device includes two Next Generation High-End Timer (N2HET) modules, 12-bit multibuffered ADC modules, ePWM, eCAP, and eQEP modules.
- What is the operating temperature range of the TMS570LC4357-EP?
The operating temperature range is -55°C to 125°C.
- What are the typical applications of the TMS570LC4357-EP?
Typical applications include braking systems, electric power steering, HEV and EV inverter systems, battery-management systems, and active driver assistance systems.
- Is the TMS570LC4357-EP suitable for safety-critical applications?
Yes, it is designed for safety-critical applications with features like dual-core lockstep CPUs, BIST logic, and ECC protection.
- What development tools are available for the TMS570LC4357-EP?
Comprehensive documentation, tools, and software are available, including the Hercules TMS570LC43x LaunchPad Development Kit.
