Please note that Cypress is an Infineon Technologies Company. The document following this cover page is marked as Cypress document as this is the company that originally developed the product. Please note that Infineon will continue to offer the product to new and existing customers as part of the Infineon product portfolio. Continuity of document content The fact that Infineon offers the following product as part of the Infineon product portfolio does not lead to any changes to this document. Future revisions will occur when appropriate, and any changes will be set out on the document history page. Continuity of ordering part numbers Infineon continues to support existing part numbers. Please continue to use the ordering part numbers listed in the datasheet for ordering. www.infineon.comADVANCE CYW43012 Single-Chip, Ultra-Low Power, IEEE 802.11n, 802.11ac- TM friendly MAC/Baseband/Radio with Bluetooth 5.0 CYW43012 Single-Chip, Ultra-Low Power, IEEE 802.11n, 802.11ac-friendlyTM MAC/Baseband/Radio with Bluetooth 5.0 The Cypress CYW43012 is a 28-nm, ultra-low power single-chip device that supports single-stream, dual-band IEEE 802.11n- compliant Wi-Fi MAC/baseband/radio and Bluetooth 5.0. When used with IEEE 802.11ac access points, the CYW43012 provides TM superior performance in terms of throughput and power consumption than other 802.11n products by leveraging 802.11ac-friendly features. In IEEE 802.11n mode, rates of MCS0MCS7 (up to 64-QAM) in 20 MHz channels are supported for data rates of up to 72.2 Mbps. The CYW43012 provides 802.11ac friendliness by supporting 256-QAM (for 20 MHz channels in the 5 GHz band) enabling data rates of up to 78 Mbps with 802.11ac access points. All legacy rates specified in the IEEE 802.11a/b/g/n specifications are also supported. Included on-chip are 2.4 GHz and 5 GHz transmit power amplifiers and receive low-noise amplifiers. CYW43012 includes a Bluetooth subsystem that is Bluetooth 5.0-compliant and supports Basic Rate/Enhanced Data Rate/BLE. In the BLE mode the new LE 2 Mbps data rate as well as existing 1 Mbps data rates are supported. The WLAN section supports an SDIO v3.0 interface that can operate in 4b or 1b mode. The Bluetooth section supports a high-speed 4-wire UART interface. The CYW43012 is designed to address the needs of IoT devices that require minimal power consumption and compact size. It includes a power management unit which simplifies the system power topology while maximizing battery life. The CYW43012 includes coexistence hardware mechanisms and algorithms, which ensure that WLAN and Bluetooth simultaneous operation is optimized for maximum performance. In addition, coexistence support for external radios (such as LTE and GPS) is provided via an external interface. Cypress Part 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 BCM43012 CYW43012 BCM43012WKWBG CYW43012C0WKWBGT BCM43012TC0KFFBH CYW43012TC0KFFBH Figure 1. Functional Block Diagram VIO VBAT WL REG ON 5 GHz WLAN Tx WLAN SDIO SPDT Host I/F SERIAL FLASH 5 GHz WLAN Rx GPIO DIPLEXER External 2.4 GHz WLAN Tx Coexistence COEX SPDT 2.4 GHz WLAN Rx I/F BT sLNA RX CLK REQ BT NORMAL POWER BT REG ON TX CYW43012 SPDT SPDT Bluetooth UART BT dLNA RX Host I/F 2 I S PCM BT DEV WAKE BT HOST WAKE Note a: IEEE 802.11ac full-compliance requires support for 40 MHz and 80 MHz channel bandwidths. CYW43012 is 802.11ac- friendly. It only supports 20 MHz channel bandwidth however it supports 802.11ac s 256-QAM for the 20 MHz channels in the 5 GHz band enabling it to offer higher throughput and lower energy per bit than 802.11n only products. In addition CYW43012, when used as a STA with an 802.11ac access point, supports 802.11ac s explicit beamformee feature to offer significantly higher throughputs than 802.11n chipsets at any given range. Cypress Semiconductor Corporation 198 Champion Court San Jose, CA 95134-1709 408-943-2600 Document Number: 002-18925 Rev. *M Revised June 30, 2020