Overview
The RM57L843BZWTT is a high-performance microcontroller from Texas Instruments, part of the Hercules RM series. It is based on the ARM® Cortex®-R5F core and is designed for safety-critical applications. The device features dual-core lockstep CPUs with ECC-protected caches, ECC on flash and RAM interfaces, and built-in self-test (BIST) logic for CPU, high-end timers, and on-chip RAMs. This microcontroller is optimized for real-time control and safety-critical systems, offering comprehensive diagnostic features and robust communication interfaces.
Key Specifications
| Specification | Details |
|---|---|
| CPU | Dual-core ARM® Cortex®-R5F, 1.66 DMIPS/MHz, up to 330 MHz |
| Memory | 4MB of program flash with ECC, 512KB of RAM with ECC, 128KB of data flash for emulated EEPROM with ECC |
| Caches | 32KB of instruction and 32KB of data caches with ECC |
| Operating Conditions | Core supply voltage (VCC): 1.14 to 1.32 V, I/O supply voltage (VCCIO): 3.0 to 3.6 V |
| External Memory Interface | 16-bit external memory interface (EMIF) |
| Communication Interfaces | 10/100 Mbps Ethernet MAC, four CAN controllers, two I2C modules, five MibSPI modules, four UART (SCI) interfaces with LIN 2.1 support |
| Timers and Peripherals | Two Next Generation High-End Timer (N2HET) modules, seven Enhanced Pulse Width Modulator (ePWM) modules, six Enhanced Capture (eCAP) modules, two Enhanced Quadrature Encoder Pulse (eQEP) modules |
| Analog-to-Digital Converters | Two 12-bit multibuffered analog-to-digital converters (MibADC) with 41 total channels and 64 words of parity-protected buffer RAM |
| Package | 337-ball grid array (ZWT) |
Key Features
- Dual-core lockstep CPUs with ECC-protected caches for enhanced reliability and safety.
- Built-in self-test (BIST) logic for CPU, high-end timers, and on-chip RAMs.
- Error signaling module (ESM) with error pin and ECC protection on flash and RAM interfaces.
- 16-region memory protection unit (MPU) and 32 channels of DMA with ECC protection.
- Integrated safety features including voltage and clock monitoring.
- Multiple communication interfaces: Ethernet, CAN, I2C, SPI, and UART with LIN support.
- Advanced timing peripherals: N2HET, ePWM, eCAP, and eQEP modules.
- Two 12-bit multibuffered analog-to-digital converters (MibADC) with parity protection.
- Three on-die temperature sensors and up to 145 pins available for general-purpose I/O (GPIO).
Applications
- Industrial safety applications: industrial automation, industrial motor drives, safe programmable logic controllers (PLCs), power generation and distribution.
- Turbines and windmills, elevators and escalators.
- Automotive and industrial fields requiring reliable serial communication or multiplexed wiring.
- Digital motor control, high-performance motion and position-control systems.
Q & A
- What is the core architecture of the RM57L843BZWTT?
The RM57L843BZWTT is based on the dual-core ARM® Cortex®-R5F core.
- What are the key safety features of this microcontroller?
The device features dual-core lockstep CPUs, ECC-protected caches, BIST logic, and ECC on flash and RAM interfaces.
- What is the maximum CPU clock speed of the RM57L843BZWTT?
The maximum CPU clock speed is up to 330 MHz.
- What types of memory does the RM57L843BZWTT have?
The device has 4MB of program flash, 512KB of RAM, and 128KB of data flash for emulated EEPROM, all with ECC protection.
- What communication interfaces are available on the RM57L843BZWTT?
The device includes Ethernet, CAN, I2C, SPI, and UART interfaces with LIN 2.1 support.
- What are the advanced timing peripherals available on this microcontroller?
The device features N2HET, ePWM, eCAP, and eQEP modules.
- How many analog-to-digital converter channels does the RM57L843BZWTT have?
The device has two 12-bit multibuffered analog-to-digital converters with a total of 41 channels.
- What is the package type of the RM57L843BZWTT?
The device is packaged in a 337-ball grid array (ZWT).
- What are some typical applications for the RM57L843BZWTT?
Industrial safety applications, industrial automation, industrial motor drives, safe PLCs, power generation and distribution, turbines and windmills, elevators and escalators.
- Does the RM57L843BZWTT support any specific industrial communication protocols?
Yes, it supports CAN 2.0B protocol and LIN 2.1 interface.
