Overview
The CC2541F256RHAT, produced by Texas Instruments, is a power-optimized true system-on-chip (SoC) solution designed for both Bluetooth low energy and proprietary 2.4-GHz applications. This SoC combines the excellent performance of a leading RF transceiver with an industry-standard enhanced 8051 microcontroller core, in-system programmable flash memory, and 8-KB RAM. It is highly suited for systems requiring ultralow power consumption, achieved through various operating modes and short transition times between these modes. The CC2541F256RHAT is available in a 6-mm × 6-mm QFN40 package and is pin-compatible with the CC2540, excluding the USB interface and certain I/O configurations.
Key Specifications
| Specification | Value |
|---|---|
| Operating Frequency | 2.4 GHz |
| Maximum Data Rate | 2 Mbps |
| Output Power | Up to 0 dBm |
| Receiver Sensitivity | -94 dBm at 1 Mbps |
| Supply Voltage Range | 2 V – 3.6 V |
| Active-Mode RX Current | 17.9 mA (typical) |
| Active-Mode TX Current (0 dBm) | 18.2 mA (typical) |
| Power Mode 1 (4-µs Wake-Up) | 270 µA |
| Power Mode 2 (Sleep Timer On) | 1 µA |
| Power Mode 3 (External Interrupts) | 0.5 µA |
| Flash Memory | 256 KB |
| RAM | 8 KB |
| Package Type | QFN40 (6-mm × 6-mm) |
Key Features
- High-performance and low-power 8051 microcontroller core with code prefetch and retention of all relevant registers in all power modes.
- Powerful five-channel DMA, general-purpose timers (one 16-bit, two 8-bit), IR generation circuitry, and a 32-kHz sleep timer with capture.
- Accurate digital RSSI support, battery monitor, and temperature sensor.
- 12-bit ADC with eight channels and configurable resolution.
- AES security coprocessor and two powerful USARTs with support for several serial protocols.
- 23 general-purpose I/O pins (21 × 4 mA, 2 × 20 mA) and I2C interface.
- Integrated high-performance comparator and watchdog timer.
- Development tools include the CC2541 Evaluation Module Kit, CC2541 Mini Development Kit, and SmartRF™ software.
Applications
The CC2541F256RHAT is suitable for a variety of applications where low power consumption and robust wireless connectivity are essential. These include:
- Bluetooth low energy devices such as fitness trackers, smart home devices, and wearable technology.
- Proprietary 2.4-GHz wireless systems for industrial automation, medical devices, and consumer electronics.
- Wireless sensor networks and IoT devices requiring low power and reliable communication.
- Devices targeting compliance with worldwide radio frequency regulations such as ETSI EN 300 328 and EN 300 440 Class 2 (Europe), FCC CFR47 Part 15 (US), and ARIB STD-T66 (Japan).
Q & A
- What is the operating frequency of the CC2541F256RHAT?
The operating frequency is 2.4 GHz. - What is the maximum data rate supported by the CC2541F256RHAT?
The maximum data rate is 2 Mbps. - What is the output power range of the CC2541F256RHAT?
The output power is programmable up to 0 dBm. - What is the receiver sensitivity of the CC2541F256RHAT?
The receiver sensitivity is -94 dBm at 1 Mbps. - What is the supply voltage range for the CC2541F256RHAT?
The supply voltage range is 2 V – 3.6 V. - How much current does the CC2541F256RHAT consume in active mode?
The active-mode RX current is 17.9 mA, and the active-mode TX current (0 dBm) is 18.2 mA. - What are the different power modes available for the CC2541F256RHAT?
The CC2541F256RHAT has multiple power modes including Power Mode 1 (4-µs Wake-Up: 270 µA), Power Mode 2 (Sleep Timer On: 1 µA), and Power Mode 3 (External Interrupts: 0.5 µA). - How much flash memory and RAM does the CC2541F256RHAT have?
The CC2541F256RHAT has 256 KB of flash memory and 8 KB of RAM. - What package type is the CC2541F256RHAT available in?
The CC2541F256RHAT is available in a 6-mm × 6-mm QFN40 package. - Is the CC2541F256RHAT pin-compatible with other Texas Instruments devices?
Yes, it is pin-compatible with the CC2540 and CC2533, under certain conditions).
