1 General Description
1.1. Product Concept
TC35667FTG is IC based on a 2.4 GHz wireless-communications Bluetooth™ V4.0 Low Energy standard, which includes an RF
analog part and a Baseband digital part. TC35667FTG provides Bluetooth™ HCI (Host Control Interface) function and LE (Low
Energy) function specified in Bluetooth™ Specifications.
Connected with an external host processor, TC35667FTG easily realizes low energy consumption applications.

1.2. Features
 Compliant with BluetoothTM Ver4.0 Low Energy
 Built-in BluetoothTM Baseband digital core
 Built-in BluetoothTM RF analog core
 Built-in ARM7TDMI-STM core
 On-chip ProgramMask-ROM (320 KB)
 On-chip Work RAM for BluetoothTM Baseband process (96 KB)
 On-chip RAM for application program storing (32 KB)
 Supports patch program loader function
 General Purpose IO (16 pins)
 General Purpose Serial Interfaces
 SPI interface (1 ch/General Purpose IO)
 I2Cinterface (1 ch/General Purpose IO)
 Host CPU Interface
 UART interface (2.4 kbps to 921.6 kbps, 2 channels – RTS/CTS are shared with TX2/RX2 and GPIO)
 Wake-up Interface (1 ch/General Purpose IO)
 Wake-up input function from sleep and deep sleep
 PWM Interface (3 ch/General Purpose IO)
 Base Clock Input (26 MHz)
 Built-in oscillator for external resonator connection
 Sleep Clock Input (32.768 kHz)
 External input supported
 Built-in oscillator for external resonator connection
 Internal oscillation SiOSC supported
 Sleep and Deep Sleep Function
 Built-in DCDC converter and LDO
 Wide range of input power supply voltage supported (1.8 to 3.6 V, single)
 Built-in general purpose ADC
 3 ch for external inputs
 1 ch for internal VDD detection
 Package:
 QFN40-P-606-0.50 [40 pin, 6 x 6 mm2, 0.5 mm pitch, 0.9 mm thickness]