Overview
The CC2540F256RHAR is a cost-effective, low-power, true system-on-chip (SoC) designed for Bluetooth low energy applications. Manufactured by Texas Instruments, this device combines an excellent RF transceiver with an industry-standard enhanced 8051 microcontroller core, in-system programmable flash memory, and 8-KB SRAM. It is particularly suited for systems requiring very low power consumption and supports various power modes to minimize energy usage. The CC2540F256RHAR is available in a 6-mm × 6-mm QFN40 package and is compatible with worldwide radio frequency regulations, including ETSI EN 300 328 and EN 300 440 Class 2 (Europe), FCC CFR47 Part 15 (US), and ARIB STD-T66 (Japan).
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | VQFN (RHA) | - |
| Pins | 40 | - |
| Operating Temperature Range | -40 to 85 | °C |
| Flash Memory | 256 KB | - |
| SRAM | 8 KB | - |
| Supply Voltage Range | 2 V – 3.6 V | - |
| Active Mode RX Current | 19.6 mA (3 V Supply) | mA |
| Active Mode TX Current (-6 dBm) | 24 mA (3 V Supply) | mA |
| Power Mode 1 Current (3-µs Wake-Up) | 235 µA | µA |
| Power Mode 2 Current (Sleep Timer On) | 0.9 µA | µA |
| Power Mode 3 Current (External Interrupts) | 0.4 µA | µA |
| RF Frequency Range | 2402 – 2480 MHz | MHz |
| Data Rate and Modulation Format | 1 Mbps, GFSK, 250 kHz deviation | - |
| Receiver Sensitivity (High-Gain Mode) | -93 dBm | dBm |
Key Features
- True Single-Chip BLE Solution: The CC2540 can run both the application and the Bluetooth low energy protocol stack, including peripherals to interface with a wide range of sensors.
- Low Power Consumption: Active mode RX down to 19.6 mA, TX (-6 dBm) at 24 mA, and various low-power sleep modes (e.g., 0.9 µA in sleep timer mode, 0.4 µA in external interrupt mode).
- High-Performance Microcontroller: Enhanced 8051 microcontroller core with in-system programmable flash memory and 8-KB SRAM.
- RF Performance: Excellent link budget (up to 97 dB) enabling long-range applications without an external front end, and accurate digital received signal-strength indicator (RSSI).
- Peripherals and Interfaces: Includes 12-bit ADC, integrated high-performance op-amp, ultralow-power comparator, general-purpose timers, 21 general-purpose I/O pins, full-speed USB interface, IR generation circuitry, and AES security coprocessor.
- Bluetooth v4.0 Compliant Protocol Stack: Supports GAP, ATT/GATT, SMP, and L2CAP, with sample applications and profiles for various roles.
- Development Tools: Supported by CC2540 Mini Development Kit, SmartRF Software, and IAR Embedded Workbench.
Applications
- Mobile Phone Accessories: Bluetooth low energy enabled accessories for smartphones.
- Sports and Leisure Equipment: Fitness trackers, smart sports gear, and other leisure devices.
- Consumer Electronics: Remote controls, gaming devices, and other consumer electronics requiring low-power wireless connectivity.
- Human Interface Devices: Keyboards, mice, and remote controls.
- Health Care and Medical Devices: Medical sensors, health monitors, and other medical devices.
- USB Dongles: Low-power USB dongles for various applications.
Q & A
- What is the CC2540F256RHAR?
The CC2540F256RHAR is a Bluetooth low energy system-on-chip (SoC) designed for low-power wireless applications, manufactured by Texas Instruments.
- What are the key features of the CC2540F256RHAR?
Key features include a true single-chip BLE solution, low power consumption, high-performance microcontroller, excellent RF performance, and various peripherals and interfaces.
- What is the operating temperature range of the CC2540F256RHAR?
The operating temperature range is -40°C to 85°C.
- What is the supply voltage range of the CC2540F256RHAR?
The supply voltage range is 2 V to 3.6 V.
- What are the power consumption levels in different modes?
Active mode RX: 19.6 mA, Active mode TX (-6 dBm): 24 mA, Power Mode 1 (3-µs Wake-Up): 235 µA, Power Mode 2 (Sleep Timer On): 0.9 µA, Power Mode 3 (External Interrupts): 0.4 µA.
- What Bluetooth protocol version is supported by the CC2540F256RHAR?
The CC2540F256RHAR supports Bluetooth v4.0.
- What development tools are available for the CC2540F256RHAR?
Development tools include the CC2540 Mini Development Kit, SmartRF Software, and IAR Embedded Workbench.
- What are some common applications of the CC2540F256RHAR?
Common applications include mobile phone accessories, sports and leisure equipment, consumer electronics, human interface devices, health care and medical devices, and USB dongles.
- Does the CC2540F256RHAR support worldwide radio frequency regulations?
Yes, it supports regulations such as ETSI EN 300 328 and EN 300 440 Class 2 (Europe), FCC CFR47 Part 15 (US), and ARIB STD-T66 (Japan).
- What is the package size of the CC2540F256RHAR?
The package size is 6-mm × 6-mm QFN40.
