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TI introduces new SafeTI™ design packages: Hercules™ ARM® Cortex™-R4 safety microcontrollers and complementary power supply for safety-critical applications

Texas Instruments Incorporated (TI) (NASDAQ: TXN) introduces new SafeTI™ design packages for safety-critical medical, industrial and energy motor control applications.  These design packages include 15 new Hercules RM4x ARM Cortex-R4 safety microcontrollers and TI's complementary TPS65381-Q1 multi-rail power supply (PMIC).  The Hercules RM4x microcontroller and PMIC "safety chipset" maximize failure detection and mitigation while minimizing software overhead. The microcontrollers and PMIC adhere to the SafeTI-61508 design package, helping customers more easily achieve IEC 61508 certification and accelerate time to market with safety-critical products.

The addition of these Hercules RM4x safety microcontrollers expand the Hercules microcontroller product line, offering 35 configurations from which customers can choose to meet application-specific needs. The new Hercules RM46x floating-point safety microcontrollers provide additional memory and performance configurations with expanded motor control capabilities and pin-compatibility with Hercules RM48x safety microcontrollers, introduced last year.  The new Hercules RM42x safety microcontrollers  provide a smaller package, lower cost, entry-line solution with integrated motor control interfaces while also meeting safety standards.  The compatible PMIC combines multiple power supplies and safety features such as voltage monitoring in a single device to reduce design time and board space.

Features and benefits of the new Hercules RM4x safety microcontrollers:
  •     Expanded range of performance and memory options, from 100 MHz to 220 MHz lockstep ARM Cortex-R4 cores and 384KB, 1MB and 1.25MB Flash, provide designers more choices and scalability for their feature-rich safety products.
  •     Achieve IEC 61508 SIL-3 more easily in system designs through component compliance to industry safety standards with these safety microcontrollers.
  •     Hardware safety features provide a high level of online diagnostics with lockstep cores; memory protection for the CPU and bus masters; error correction code (ECC) for flash and RAM with single-bit error correction and double-bit error detection (SECDED); CPU and RAM built-in-self-test (BIST) for detection of potential latent faults; intelligent error signaling module for action based on safety error; parity on peripheral RAMs; redundant analog-to-digital converters (ADCs) and timers; and continuous voltage and clock monitoring.
  •     Integrated motor control capability with the enhanced pulse width modulation, sensor capture and quadrature encoder interfaces on chip to eliminate multiple external components for motor control.  The 32-channel timer coprocessor serves as a diverse, redundant motor control channel and checks the integrity of the pulse-width modulators (PWMs) in the motor control loop.
  •     On-chip Ethernet, CAN and USB connectivity enables networking and several options for data collection and field software upgrades
  •     Safety documentation, including a safety manual and safety analysis reports, details how to implement Hercules microcontrollers in a safety-critical application, as well as failure modes, effects and diagnostic analysis (FMEDA) that provides the failure rate information needed to meet safety standards.

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