CC2540F256RHAR device package

CC2540F256RHAR schematic symbol

The trends and advancements in the consumer electronics is making room for new technologies and innovative solutions. Communications is a major part of the consumer electronic devices like laptops, mobiles, tablets and headsets. Latest communication technologies and protocols are being introduced for the consumer electronics on a regular basis. One of the widely used technologies is the wireless enabled Bluetooth Low Energy technology which is specifically designed for reliability, high performance and low power consumption. This technology is being increasingly integrated in smart wearable devices and internet of things applications. Specialized modules and SoCs (System On Chip) are available for the BLE applications in the market.

What is CC2540F256RHAR？

The CC2540F256RHAR is an SoC based microcontroller unit with integrated USB designed for Bluetooth Low Energy applications by Texas Instruments. This SoC offers a true single chip BLE solution for novel low energy applications. The SoC combines an RF transceiver with the microcontroller core and many other enhanced connectivity features. This SoC can run applications as well as the BLE protocol stack. This module can be directly interfaced with a wide range of sensors and peripherals. The SoC features a high performance 8051 microcontroller core with 256kB of programmable flash memory and 8kB of SRAM.

Pin Configuration                

The pin description of the CC2540F256RHAR system on chip is provided as following:

Features

• Single chip BLE solution
• Runs both application and BLE protocol stack
• Compact form factor of 6mm x 6mm
• Long range connectivity without external front end
• Compliant with worldwide radio frequency
• Require very few external components
• Low power consumption
• Built in microcontroller core, SRAM and flash memory
• 8 channel 12-bit ADC
• Five channel DMA
• AES security co-processor
• Full speed USB interface
• Battery monitor and temperature sensor
• IR generation circuitry

Applications

The applications of the CC2540F256RHAR SoC BLE module are given as following:

• Wireless headphones and earphones
• Bluetooth peripherals for mobile phones
• Smart watches and fitness monitor bands
• Wireless enabled consumer electronics
• Wireless car and home keys
• Wireless biomedical sensors and systems
• HID keyboards and computer peripherals

Specifications

The major technical specifications of the CC2540F256RHAR SoC are given as following:

• Dimensions: 6mm x 6mm
• Link budget: 97dB
• Package: QFN-40
• Supply voltage: 2V to 3.6V
• TX active mode current: 18.6mA
• Microcontroller core: 8051
• SRAM: 128kB
• Flash memory: 256kB
• ADC: 12-bit 8-channel
• Timers: 1 x 16-bit, 2 x 8-bit
• GPIO pins: 21
• Peripherals: USART, USB, IR, DMA, AES Co-processor, battery monitor

Alternatives

CC2540F256RHAT; 

How CC2540F256RHAR work?

The consumer electronics devices are becoming smaller in size by each passing day. The small size of the device poses a number of constraints for the circuit designers such as power consumption, and component sizes. These devices do not have a lot of room for bulky batteries and therefore excellent power management characteristics are required. The need for smaller and fewer components leads to the requirement for integrated circuits and systems.

An example of such a device is a smart wearable watch. These watches must provide an excellent battery time to the user with minimal battery size. Therefore single chip solutions such as CC2540F256RHAR are ideal for such novel applications which demand low power consumption and compact form factor.
The application circuit of CC2540F256RHAR in such circuits is provided as following:

CC2540F256RHAR application circuit

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