MCU 16-bit/32-bit TMS470 ARM7TDMI RISC 384KB Flash 1.8V 144-Pin LQFP Tray, TMS470R1A384PGEQ, Texas Instruments

Description

The TMS470R1A384(2) devices are members of the Texas Instruments TMS470R1x family of general-purpose 16/32-bit reduced instruction set computer (RISC) microcontrollers. The A384 microcontroller offers high performance utilizing the high-speed ARM7TDMI 16/32-bit RISC central processing unit (CPU), resulting in a high instruction throughput while maintaining greater code efficiency. The ARM7TDMI 16/32-bit RISC CPU views memory as a linear collection of bytes numbered upwards from zero. The A384 utilizes the big-endian format where the most significant byte of a word is stored at the lowest-numbered byte and the least significant byte at the highest-numbered byte. High-end embedded control applications demand more performance from their controllers while maintaining low costs. The A384 RISC core architecture offers solutions to these performance and cost demands while maintaining low power consumption. The A384 devices contain the following: ARM7TDMI 16/32-bit RISC CPU TMS470R1x system module (SYS) with 470+ enhancements 384K-byte flash 32K-byte SRAM Zero-pin phase-locked loop (ZPLL) clock module Analog watchdog (AWD) timer Enhanced real-time interrupt (RTI) module Interrupt expansion module (IEM) Two serial peripheral interface (SPI) modules Two serial communications interface (SCI) modules Two standard CAN controllers (SCC) Three inter-integrated circuit (I2C) modules Class II serial interface B (C2SIb) module 10-bit multi-buffered analog-to-digital converter (MibADC), with 12 input channels High-end timer (HET) controlling 12 I/Os External clock prescale (ECP) Expansion bus module (EBM) Up to 87 I/O pins and 1 input-only pin (PGE suffix only), up to 51 I/O pins and 1 input-only pin (PZ suffix only) The functions performed by the 470+ system module (SYS) include: Address decoding Memory protection Memory and peripherals bus supervision Reset and abort exception management Prioritization for all internal interrupt sources Device clock control Parallel signature analysis (PSA) The enhanced real-time interrupt (RTI) module on the A384 has the option to be driven by the oscillator clock. This data sheet includes device-specific information such as memory and peripheral select assignment, interrupt priority, and a device memory map. For a more detailed functional description of the SYS module, see the TMS470R1x System Module Reference Guide (literature number SPNU189). The A384 memory includes general-purpose SRAM supporting single-cycle read/write accesses in byte, half-word, and word modes. The flash memory on this device is a nonvolatile, electrically erasable and programmable memory implemented with a 32-bit-wide data bus interface. The flash operates with a system clock frequency of up to 24 MHz. When in pipeline mode, the flash operates with a system clock frequency of up to 48 MHz. For more detailed information on the flash, see the Flash section of this data sheet and the TMS470R1x F05 Flash Reference Guide (literature number SPNU213).