The TC35678FXG from Toshiba is a new IC for Bluetooth smart devices with a very low current consumption. It incorporates built-in 256KB Flash ROM to store user programs and various data in standalone operations, eliminating the need for external EEPROM and helping lower mounting cost and area. Out of 256KB Flash ROM, approximately 200KB is available for user application. Further, SRAM memory capacity for user programs is extended to 100 kilobytes (KB) from 64KB in previous products, contributing to expandability of application programs.
It has adoption of a highly efficient DC-DC converter and an original low-power circuit design reduces current consumption by nearly 46%, with peak current consumption of 3.6 mA at 3V supply voltage in transmitting mode. This new ICs facilitates adoption of Bluetooth LE communications for wearable devices for healthcare applications and for high grade small devices that use coin batteries such as sensors and toys, and will support set makers in optimizing product value.