The CYW20706UA2KFFB4G from Infineon Technologies is a powerful and highly integrated Bluetooth® 4.2 compliant transceiver with embedded MCU. It’s designed for reliable, low-power wireless communication in IoT, automotive, and consumer electronics. With a built-in ARM Cortex-M3 processor, integrated ROM and RAM, and support for various serial interfaces, it provides a versatile platform for Bluetooth applications requiring robust performance and efficiency.

| Manufacturer | Infineon Technologies |
| Series | - |
| Part Status | Active |
| Type | Transceiver + MCU |
| RF Standard | Bluetooth |
| Bluetooth Version | 4.2 |
| Modulation | GFSK, 4DQPSK, 8DPSK |
| Frequency | 2.4GHz |
| Max Data Rate | 2Mbps |
| Output Power | 12dBm |
| Sensitivity | -96.5dBm |
| Memory | 848kB ROM, 352kB RAM |
| Interfaces | UART, SPI, I2C, I2S |
| GPIO | 24 |
| Supply Voltage | 3.3V |
| Current (Receive) | 12.5mA |
| Current (Transmit) | 26.5mA |
| Operating Temp. | -30°C ~ +85°C |
| Mounting Type | Surface Mount |
| Package | 49-TFBGA (4.5x4mm) |
| Base Part Number | CYW20706 |
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Q: What is CYW20706UA2KFFB4G used for?
A: It’s commonly used in Bluetooth-based wireless communication systems, such as smart devices, automotive modules, and IoT gateways.
Q: Does it support Bluetooth Low Energy?
A: Yes, it supports Bluetooth 4.2, which includes Bluetooth Low Energy (BLE) features.
Q: Is it suitable for automotive-grade use?
A: Yes, its operating temperature range of -30°C to +85°C makes it suitable for many industrial and automotive environments.
The CYW20706UA2KFFB4G Bluetooth module from Infineon is a compact, powerful solution for wireless communication systems. With integrated memory, low-power operation, and full Bluetooth v4.2 compliance, it’s ideal for developers building high-performance, reliable, and space-constrained IoT and embedded products.
| Serial Interfaces | I2C, I2S, SPI, UART | |
| Product Status | Active | |
| Power - Output | 12dBm | |
| Supplier Device Package | 49-FBGA (4.5x4) | |
| Package / Case | 49-TFBGA | |
| Current - Receiving | 12.5mA | |
| Modulation | 4DQPSK, 8DPSK, GFSK | |
| Voltage - Supply | 3.3V | |
| REACH Status | REACH Unaffected | |
| Mfr | Infineon Technologies | |
| Data Rate (Max) | 2Mbps | |
| Protocol | Bluetooth v4.2 | |
| RoHS Status | ROHS3 Compliant | |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | |
| Operating Temperature | -30°C ~ 85°C | |
| Current - Transmitting | 26.5mA | |
| ECCN | 5A992C | |
| Mounting Type | Surface Mount | |
| RF Family/Standard | Bluetooth | |
| GPIO | 24 | |
| Series | - | |
| Type | TxRx + MCU | |
| Sensitivity | -96.5dBm | |
| Memory Size | 848kB ROM, 352kB RAM | |
| Frequency | 2.4GHz | |
| HTSUS | 8542.31.0001 | |
| Package | Tray | |
| Base Product Number | CYW20706 |
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