The Broadcom BCM28155 is a mobile system-on-a-chip (SoC) introduced around 2012 for smartphones and embedded devices. It features a dual-core ARM Cortex-A9 CPU running up to about 1.2 GHz, paired with a VideoCore IV GPU for graphics and multimedia acceleration. Built on a 40 nm process, it supports LPDDR2 memory, HD video playback, and integrated connectivity options, making it suitable for mid-range Android devices of its era.