The Si100x wireless MCU family offers devices configured with either 64 K or 32 K of on-board Flash memory and a maximum transmit output power of +13 or +20 dBm. The Si1004 and Si1005 devices also include an integrated DC-DC boost converter with a switching efficiency of up to 90%, which can greatly increase system battery life. The specific device features are summarized in the product selection table below.