Toshiba TC3567x IC with Bluetooth Low Energy 4.1 support. Free Technical Library News

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Toshiba TC3567x Bluetooth Low Energy 4.1 IC

27.07.2016

Toshiba Electronics Europe has introduced three new integrated circuits (ICs) that support the Bluetooth Low Energy (BLE) version 4.1 communication standard. The TC35678FSG, TC35678FXG, and TC35679FSG are low power and ideal for Bluetooth Smart applications. These include wearables, medical equipment, smartphone accessories, remote controls, and a wide range of emerging IoT solutions.

The use of a DC/DC converter and low-power circuitry can reduce current consumption by about 46% compared to previous devices such as the TC35667FTG, the company says. With a supply voltage of 3 V, the peak current consumption of the IC reaches 3,6 mA in transmit mode and 3,3 mA in receive mode. In deep sleep mode, it drops to 100 nA.

The TC35678FXG and TC35678FSG have 256 KB of on-chip flash ROM to store user programs and data when running offline without requiring an external host microcontroller. The amount of allocated memory for user programs has been increased to 100 KB in both ICs, compared to 64 KB in the previous devices, providing additional expansion options for application programs. Embedded Flash ROM eliminates the need for an external non-volatile PROM and reduces cost and circuit board size by reducing the number of external components.

The TC35678FXG is a version of the TC35678FSG in a QFN60 package that increases the number of general purpose I/O interface pins from 16 to 32. It is designed for applications such as keyboards and remote controls that require a large number of control pins. Unlike the devices described, the TC35679FSG does not have a built-in flash ROM, and therefore its current consumption is even lower. It provides long-term operation of devices powered by small coin-type batteries. For example, using a CR2032 coin cell battery, the new IC can keep the beacon running for more than one year.

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