1. General Description

1.1. Product Concept

TC35679FSG (Later omitted TC35679.) is compliant with Bluetooth® core specification 4.2. RF analog parts and baseband digital

parts are built in it, and TC35679 provides Bluetooth® HCI (Host Control Interface) functions and Bluetooth® low energy GATT profile

functions defined by Bluetooth® specifications. TC35679 works as an application using Bluetooth® low energy communication system

by connected with external host processor or external non-volatile memory.

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)

 Supports patch program loader function

 General Purpose IO (17 ports)

 General Purpose Serial Interfaces

 SPI interface (1 ch - shared with a General Purpose IO)

 I2C interface (1 ch - shared with 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 - shared with General Purpose IOs)

 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 external host control and standalone

(Please refer to the software application notes and programming guide for the method of control software design.)

 Sleep and Deep Sleep Functions

 Built-in DCDC converter and LDO

 Wide range of input power supply voltages supported (1.8 to 3.6 V, Built-in low battery voltage detection.)

 Built-in general purpose ADC

 External analog inputs (5 ch - shared with General Purpose IOs)

 Internal Power supply voltage monitoring (1 ch - connected inside)

 External radio front-end control

 Radio transmitting and receiving timing signal output (1 ch - shared with a General Purpose IO)

 Package:

 TC35679FSG: QFN Package [40 pin, 5 x 5 mm, 0.4 mm pitch, 0.9 mm thickness]