1. General Description

1.1. Product Concept

TC35678FSG and TC35678FXG (Later omitted TC35678.) are compliant with Bluetooth® core specification 4.2. RF analog parts

and baseband digital parts are built in them, and TC35678 provides Bluetooth® HCI (Host Control Interface) functions and

Bluetooth® low energy GATT profile functions defined by Bluetooth® core specifications. Additionally, this IC works as an application

using low power Bluetooth® communication by storing the application program into built-in flash ROM.

1.2. Features

 Compliant with Bluetooth® Ver4.2 low energy

 Built-in ARM® Cortex®-M0 (13 MHz or 26 MHz operation frequency is able to select to run)

 On-chip mask ROM for Bluetooth® program (384 KB)

 On-chip work RAM for Bluetooth® Baseband process (192 KB)

 On-chip Flash-ROM (256 KB, More than 100,000 erase and program cycles)

 Supports patch program loader function

 General Purpose IO (TC35678FSG 17 ports,TC35678FXG 32 ports)

 General Purpose Serial Interfaces

 SPI interface (1 ch assigned to a General Purpose IO)

 I2C interface (1 ch assigned to a General Purpose IO)

 Host CPU Interface

 UART interface (9600 bps to 921.6 kbps, 2 ch - shared with GPIOs)

 SPI interface

 Emulator debug control interface

 SWD(Serial Wire Debug)2-wire (1 ch)

 Wake-up Interface (2 ch assigned to a General Purpose IO)

 Wake-up input function from sleep and deep sleep

 PWM Interface (4 ch assigned to General Purpose IOs)

 Reference Clock Input (26 MHz)

 Built-in oscillator for crystal oscillator connection

 Sleep Clock Input (32.768 kHz)

 External oscillator input supported

 Built-in oscillator for crystal oscillator connection

 Works as Standalone

 Sleep and Deep Sleep Functions

 Built-in DCDC converter and LDO

 Wide range of input power supply voltages supported (Booting power supply voltage : 1.9 to 3.6 V, low battery voltage

detection.)

 Built-in general purpose ADC

 External analog inputs assigned to GPIOs (TC35678FSG-5 ch, TC35678FXG-7 ch)

 Internal VDD monitoring (1 ch - connected inside)

 Package:

 TC35678FSG: QFN Package [40 pin, 5 x5 mm, 0.4 mm pitch, 0.9 mm thickness]

 TC35678FXG: QFN Package [60 pin, 7 x7 mm, 0.4 mm pitch, 0.9 mm thickness]