CYW20704 Single-Chip Bluetooth Transceiver and Baseband Processor The Cypress CYW20704 is a monolithic, single-chip, Bluetooth 4.1+ HS-compliant, stand-alone baseband processor with an integrated 2.4 GHz transceiver. Manufactured using the industry s most advanced 40 nm CMOS low-power process, the CYW20704 employs the highest level of integration, eliminating all critical external components, and thereby minimizing the devices footprint and costs associated with the implementation of Bluetooth solutions. The CYW20704 is the optimal solution for voice and data applications that require a Bluetooth SIG standard Host Controller Interface (HCI) via USB, UART H4, and PCM audio interface support. The CYW20704 transceivers enhanced radio performance meets the most stringent industrial temperature application requirements for compact integration into mobile handset and portable devices. The CYW20704 provides full radio compatibility, enabling it to operate simultaneously with GPS and cellular radios. Cypress Numbering Scheme Cypress is converting the acquired IoT part numbers from Broadcom to the Cypress part numbering scheme. Due to this conversion, there is no change in form, fit, or function as a result of offering the device with Cypress part number marking. The table provides Cypress ordering part number that matches an existing IoT part number. Table 1. Mapping Table for Part Number between Broadcom and Cypress Broadcom Part Number Cypress Part Number BCM20704 CYW20704 BCM20704UA2KFFB1G CYW20704UA2KFFB1G Features Complies with Bluetooth Core Specification Version 4.1+ HS Ultra-low power consumption with provisions for supporting future specifications Supports serial flash interfaces Bluetooth Class 1 or Class 2 transmitter operation Supports mobile and PC applications without external memory Supports extended synchronous connections (eSCO), for Available in a 49-ball FcBGA package enhanced voice quality by allowing for retransmission of dropped packets IoT Applications Adaptive frequency hopping (AFH) for reducing radio Remotes: TV/Entertainment frequency interference USB dongles Interface support, host controller interface (HCI) using a USB or high-speed UART interface and PCM for audio data Wearables USB2.0 full-speed with LPM support (12 Mbps) Smart metering Supports Cypress proprietary 2 Mbps low energy mode. Cypress Semiconductor Corporation 198 Champion Court San Jose, CA 95134-1709 408-943-2600 Document Number: 002-14786 Rev. *F Revised Monday, May 29, 2017 CYW20704 Figure 1. Functional Block Diagram 2 PCM/I S CYW20704 USB UART High-Speed GPIO Peripheral Transport Radio Transceiver Unit (PTU) SPI Master BSC Microprocessor and Bluetooth Baseband Memory Unit (PU) Core (BBC) IoT Resources Cypress provides a wealth of data at