FEATURES

• Highly integrated one-chip MAC, baseband, direct conversion radio, and ARM7™ processor for low-power embedded applications.

• Designed to meet exacting requirements of mobile devices, including small form factor, ultra-low power consumption, and low cost.

• Footprint-compatible with BCM4328 single-chip IEEE 802.11a/b/g™ dual-band MAC/baseband/radio with integrated CPU.

• Support for multiple interface options popular in embedded designs: SDIO (1- and 4-bit) and USB 2.0.

• Embedded ARM7 CPU that executes the full WLAN driver, eliminating the need for complicated wireless LAN integration into the host platform.

• Portable streamlined software interface for easy migration to embedded operating systems.

• Support for advanced Bluetooth® coexistence algorithms with hardware interface targeted at voice and multimedia applications.

• On-chip boot ROM and SRAM for a complete WLAN subsystem.

• Internal fractional nPLL allows support for a wide range of reference clock frequencies.

• Requires only a single 3.3V external supply voltage.

• 3.3V/1.8V-tolerant I/O.

• Support for 2.5V–5.5V VBAT supplies with a single external switching regulator.

• On-chip UART and JTAG interfaces for ease of debugging.

• Available in FBGA (0.5-mm pitch) and WLCSP (0.25-mm pitch) packages.

• Integrated power amplifier for medium-transmit power embedded devices; interface to external power amplifier for high-power applications.