描述 The CC2540 is a cost-effective, low-power, true system-on-chip (SoC) for Bluetooth low energy applications. It enables robust BLE master or slave nodes to be built with very low total bill-of-material costs. The CC2540 combines an excellent RF transceiver with an industry-standard enhanced 8051 MCU, in-system programmable flash memory, 8-KB RAM, and many other powerful supporting features and peripherals. The CC2540 is suitable for systems where very low power consumption is required. Very low-power sleep modes are available. Short transition times between operating modes further enable low power consumption. The CC2540 comes in two different versions: CC2540F128/F256, with 128 and 256 KB of flash memory, respectively. Combined with the Bluetooth low energy protocol stack from Texas Instruments, the CC2540F128/F256 forms the market’s most flexible and cost-effective single-mode Bluetooth low energy solution.特性True Single-Chip BLE Solution: CC2540 Can Run Both Application and BLE Protocol Stack, Includes Peripherals to Interface With Wide Range of Sensors, Etc. 6-mm × 6-mm Package RF Bluetooth low energy technology Compatible Excellent Link Budget (up to 97 dB), Enabling Long-Range Applications Without External Front End Accurate Digital Received Signal-Strength Indicator (RSSI) Suitable for Systems Targeting Compliance With Worldwide Radio Frequency Regulations: ETSI EN 300 328 and EN 300 440 Class 2 (Europe), FCC CFR47 Part 15 (US), and ARIB STD-T66 (Japan) Layout Few External Components Reference Design Provided 6-mm × 6-mm QFN40 PackageLow Power Active Mode RX Down to 19.6 mAActive Mode TX (–6 dBm): 24 mAPower Mode 1 (3-μs Wake-Up): 235 μAPower Mode 2 (Sleep Timer On): 0.9 μAPower Mode 3 (External Interrupts): 0.4 μAWide Supply Voltage Range (2 V–3.6 V) Full RAM and Register Retention in All Power ModesTPS62730 Compatible Low Power in Active Mode RX Down to 15.8 mA (3 V Supply) TX (-6 dBm): 18.6 mA (3 V Supply) Microcontroller High-Performance and Low-Power 8051 Microcontroller CoreIn-System-Programmable Flash, 128 KB or 256 KB8-KB SRAMPeripherals 12-Bit ADC with Eight Channels and Configurable Resolution Integrated High-Performance Op-Amp and Ultralow-Power Comparator General-Purpose Timers (One 16-Bit, Two 8-Bit) 21 General-Purpose I/O Pins (19× 4 mA, 2× 20 mA) 32-kHz Sleep Timer With Capture Two Powerful USARTs With Support for Several Serial Protocols Full-Speed USB Interface IR Generation Circuitry Powerful Five-Channel DMA AES Security CoprocessorBattery Monitor and Temperature Sensor Each CC2540 Contains a Unique 48-bit IEEE AddressSoftware FeaturesBluetooth v4.0 Compliant Protocol Stack for Single-Mode BLE Solution Complete Power-Optimized Stack, Including Controller and Host GAP – Central, Peripheral, Observer, or Broadcaster (Including Combination Roles) ATT / GATT – Client and Server SMP – AES-128 Encryption and Decryption L2CAP Sample Applications and Profiles Generic Applications for GAP Central and Peripheral Roles Proximity, Accelerometer, Simple Keys, and Battery GATT Services Multiple Configuration options Single-Chip Configuration, Allowing Application to Run on CC2540 Network Processor Interface for Applications Running on an External Microcontroller BTool – Windows PC Application for Evaluation, Development, and Test Development Tools CC2540 Mini Development KitSmartRF SoftwareSupported by IAR Embedded Workbench Software for 8051APPLICATIONS2.4-GHz Bluetooth low energy Systems Mobile Phone Accessories Sports and Leisure Equipment Consumer Electronics Human Interface Devices (Keyboard, Mouse, Remote Control)USB DonglesHealth Care and MedicalCC2540 with TPS62730TPS62730 is a 2 MHz Step Down Converter with Bypass Mode Extends Battery Lifetime by up to 20% Reduced Current in TX and RX 30 nA Bypass Mode Current to Support Low Power Modes RF Performance Unchanged Small Package Allows for Small Solution Size CC2540 Controllable All other trademarks are the property of their respective owners