TI's CC2540 family provides for handheld devices around the sensor applications and mobile low-power Bluetooth solution CC2540 is a true system-on-chip solution, combined with TI's agreement stack, profile software and applications support, become CC2540 low-power single-mode Bluetooth solution on the market's most flexible and cost-effective.
It has three different memory access bus:... A special function register (SFR) 2 data (DATA) 3 Code / external data (CODE / the XDATA)
the CC2540 MCU SFR single-cycle access, DATA, and the main SRAM. When the CC2540 is in idle mode, you can enter a deep sleep, in deep sleep state, power consumption is very low, external interrupt CC2540 can wake up from a deep sleep. Core memory in the system using the SFR bus crossbar comprises CPU, DMA controller and the physical layer of the memory and all external devices connected.
Flash CC2540 The capacity can be selected, there is 128KB, 256KB, which is online CC2540 microcontroller programmable non-volatile memory, and the code and mapped to external data memory space. In addition to saving the program code and constants, a nonvolatile memory necessary to run the application stored data to ensure the data is available after a reboot.
The main function
● enhanced 8051 microcontroller - 128KB or 256 KB built-in flash memory, 8KB SRAM.
● fully integrated RF functions - low-power Bluetooth (1Mbps GFSK).
● Digital Peripherals - 21 general-purpose input and output interfaces, two USART (UART or the SPI), a full-speed USB 2.0,2 16 yuan
and 8 yuan two timers, a timer dedicated connection layer for low-power Bluetooth Agreement clock, AES-128 hardware encryption / decryption
function.
Advanced analog peripheral ● - 8-channel 8-12 yuan delta-sigma analog to digital converter, analog comparator ultra-low power,
built-in high-performance operational amplifiers.
● complete solution -2.4 GHz system-on-chip, TI protocol stack, profile software and applications support.
● Ultra-low power consumption - Sensor application can use a coin-type battery operation more than a year.
● leading RF performance - up to + 97dB link budget, it may be used for a wide range of communication with other 2.4GHz devices
excellent in coexistence.
● single-chip integration solutions - a microcontroller, a host, and application integration in a 6mm x 6mm of the element,
effectively reducing the required printed circuit board area, the CC2540 application can write directly, it supports analog and digital interface.
● includes a flash memory element having elasticity and - firmware can be updated in place of use, the information stored on the wafer.
● single mode and dual mode - as manufacturers while providing a single mode and dual mode low power Bluetooth solution.
CC2540 application market
low single-mode for consumer medical, mobile devices, peripherals, sports and health applications such as ultra-low-power wireless connectivity products on the market's most flexible and cost-effective power Bluetooth solution - - Texas Instruments low-power Bluetooth CC25402. 4GHz single wafer low power Bluetooth system.