BCM4328 Datasheet PDF - Broadcom Corporation

FEATURES
• Highly integrated one-chip MAC, baseband, dual-band 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 BCM4326 single-chip
   IEEE 802.11b/g™ 2.4-GHz 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.