Overview
The CC2540F256RHAT from Texas Instruments is a cost-effective, low-power, true system-on-chip (SoC) designed for Bluetooth low energy (BLE) applications. It combines an excellent RF transceiver with an industry-standard enhanced 8051 microcontroller core, in-system programmable flash memory, and 8-KB SRAM. This SoC is suitable for systems requiring very low power consumption and features short transition times between operating modes to further reduce power consumption. The CC2540F256RHAT is part of the CC2540 series, which includes versions with 128 KB and 256 KB of flash memory, respectively.
Key Specifications
| Parameter | Value |
|---|---|
| Flash Memory | 256 KB |
| SRAM | 8 KB |
| Microcontroller Core | High-Performance and Low-Power 8051 |
| RF Frequency Range | 2.402 GHz to 2.48 GHz |
| Data Rate and Modulation | 1 Mbps, GFSK, 250 kHz deviation |
| Supply Voltage Range | 2 V to 3.6 V |
| Current Consumption (RX, 3 V Supply) | Down to 15.8 mA |
| Current Consumption (TX, -6 dBm, 3 V Supply) | 18.6 mA |
| Power Modes | Power Mode 1: 235 µA, Power Mode 2: 0.9 µA, Power Mode 3: 0.4 µA |
| Package | 6-mm × 6-mm QFN40 |
| Operating Temperature Range | -40°C to 85°C |
Key Features
- True single-chip BLE solution, capable of running both application and BLE protocol stack.
- Excellent RF performance with a link budget of up to 97 dB, enabling long-range applications without an external front end.
- Integrated high-performance op-amp and ultralow-power comparator.
- General-purpose timers (one 16-bit, two 8-bit) and a 32-kHz sleep timer with capture.
- Two powerful USARTs with support for several serial protocols and a full-speed USB interface.
- IR generation circuitry and a powerful five-channel DMA.
- AES security coprocessor, battery monitor, and temperature sensor.
- 21 general-purpose I/O pins (19× 4 mA, 2× 20 mA).
- Bluetooth v4.0 compliant protocol stack for single-mode BLE solution.
Applications
- 2.4-GHz Bluetooth low energy systems.
- Mobile phone accessories.
- Sports and leisure equipment.
- Consumer electronics.
- Human interface devices (keyboard, mouse, remote control).
- USB dongles.
- Health care and medical devices.
Q & A
- What is the CC2540F256RHAT?
The CC2540F256RHAT is a low-power, true system-on-chip (SoC) for Bluetooth low energy applications from Texas Instruments.
- How much flash memory does the CC2540F256RHAT have?
The CC2540F256RHAT has 256 KB of flash memory.
- What is the supply voltage range for the CC2540F256RHAT?
The supply voltage range is from 2 V to 3.6 V.
- What are the current consumption levels for RX and TX modes?
The current consumption is down to 15.8 mA for RX and 18.6 mA for TX (-6 dBm) at a 3 V supply.
- What are the power modes available for the CC2540F256RHAT?
The power modes include Power Mode 1 (235 µA), Power Mode 2 (0.9 µA), and Power Mode 3 (0.4 µA).
- What kind of package does the CC2540F256RHAT come in?
The CC2540F256RHAT comes in a 6-mm × 6-mm QFN40 package.
- What are some of the key peripherals included in the CC2540F256RHAT?
Key peripherals include a 12-bit ADC, general-purpose timers, USARTs, full-speed USB interface, IR generation circuitry, and a five-channel DMA.
- Is the CC2540F256RHAT compatible with Bluetooth v4.0?
Yes, the CC2540F256RHAT is Bluetooth v4.0 compliant.
- What are some typical applications for the CC2540F256RHAT?
Typical applications include mobile phone accessories, sports and leisure equipment, consumer electronics, human interface devices, USB dongles, and health care and medical devices.
- Does the CC2540F256RHAT support AES encryption?
Yes, the CC2540F256RHAT includes an AES security coprocessor.
