Overview
The CC2544RHBT from Texas Instruments is an optimized system-on-chip (SoC) solution designed for 2.4 GHz USB applications. It combines a leading RF transceiver with a single-cycle 8051 compliant CPU, 32-KB in-system programmable flash memory, and up to 2-KB RAM. This SoC is built to minimize the bill-of-material cost while offering excellent performance. It is particularly suited for wireless consumer and Human Interface Device (HID) applications, making it ideal for USB dongle applications.
Key Specifications
| Parameter | Specification |
|---|---|
| RF Frequency | 2.4 GHz |
| Data Rates and Modulation Formats | 2-Mbps GFSK (320-kHz, 500-kHz deviation), 1-Mbps GFSK (160-kHz, 250-kHz deviation), 500-kbps MSK, 250-kbps GFSK (160-kHz deviation), 250-kbps MSK |
| Output Power | Programmable up to 4 dBm |
| Receiver Sensitivity | –88 dBm at 2 Mbps |
| Compliance | ETSI EN 300 328 and EN 300 440 Category 2 (Europe), FCC CFR47 Part 15 (US), ARIB STD-T66 (Japan) |
| CPU | Single-cycle 8051 compliant CPU |
| Memory | 32-KB in-system programmable flash memory, up to 2-KB RAM |
| Package | 5-mm × 5-mm QFN32 package |
| Interfaces | SPI, UART, USB |
Key Features
- Single-Chip 2.4-GHz RF Transceiver and MCU
- Excellent Link Budget enabling long range without external front-ends
- Accurate RSSI Function
- Few external components required
- Reference designs available from Texas Instruments
- Compatible with CC2541, CC2543, and CC2545
Applications
The CC2544RHBT is primarily targeted for wireless consumer and HID applications. It is particularly well-suited for USB dongle applications due to its low bill-of-material cost and high performance.
Q & A
- What is the primary function of the CC2544RHBT?
The CC2544RHBT is a system-on-chip (SoC) solution that combines a 2.4 GHz RF transceiver with a single-cycle 8051 compliant CPU, designed for USB applications. - What are the supported data rates and modulation formats?
The CC2544RHBT supports data rates of 2-Mbps GFSK (320-kHz, 500-kHz deviation), 1-Mbps GFSK (160-kHz, 250-kHz deviation), 500-kbps MSK, and 250-kbps GFSK (160-kHz deviation) and MSK. - What is the maximum output power of the CC2544RHBT?
The output power is programmable up to 4 dBm. - What is the receiver sensitivity of the CC2544RHBT?
The receiver sensitivity is –88 dBm at 2 Mbps. - Is the CC2544RHBT compliant with international RF regulations?
Yes, it is compliant with ETSI EN 300 328 and EN 300 440 Category 2 (Europe), FCC CFR47 Part 15 (US), and ARIB STD-T66 (Japan). - What type of CPU does the CC2544RHBT use?
The CC2544RHBT uses a single-cycle 8051 compliant CPU. - How much memory does the CC2544RHBT have?
The CC2544RHBT has 32-KB in-system programmable flash memory and up to 2-KB RAM. - What package type does the CC2544RHBT come in?
The CC2544RHBT comes in a 5-mm × 5-mm QFN32 package. - What interfaces are available on the CC2544RHBT?
The CC2544RHBT has SPI, UART, and USB interfaces. - What are the typical applications for the CC2544RHBT?
The CC2544RHBT is typically used in wireless consumer and HID applications, especially for USB dongle applications.
