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 device’s 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 transceiver’s 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
■ Available in a 49-ball FcBGA package
■ Supports extended synchronous connections (eSCO), for
enhanced voice quality by allowing for retransmission of
dropped packets
IoT Applications
■ Adaptive frequency hopping (AFH) for reducing radio
■ Remotes: TV/Entertainment
■ USB dongles
frequency interference
■ 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
Document Number: 002-14786 Rev. *E
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198 Champion Court
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San Jose, CA 95134-1709
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408-943-2600
Revised Thursday, September 29, 2016