1. General Description
1.1. Product Concept
TC35667FTG-006 and TC35667FSG-006 (Later omitted TC35667.) is compliant with 2.4 GHz wireless communication Bluetooth®
V4.1 low energy standard. With RF analog part and Baseband digital part built-in, TC35667 provides Bluetooth® HCI (Host Control
Interface) functions and Bluetooth low energy GATT profile functions defined in Bluetooth® specifications. Connected with external host
processors, TC35667 realizes easy development of Bluetooth® Low Energy applications

1.2. Features
 Compliant with Bluetooth® Ver4.1 low energy
 Built-in Bluetooth® Baseband
 Built-in Bluetooth® RF analog
 Built-in ARM7TDMI-STM core
 On-chip mask ROM for Bluetooth® program (320 KB)
 On-chip work RAM for Bluetooth® Baseband process (96 KB)
 On-chip RAM for application program storing (32 KB)
 Supports patch program loader function
 General Purpose IO (16 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 channels - RTSX/CTSX are shared with TX2/RX2 and GPIOs)
 Wake-up Interface (1 ch assigned to a General Purpose IO)
 Wake-up input function from sleep and deep sleep
 PWM Interface (3 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
 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, low battery voltage detection, > 2.0 V required to
start up.)
 Built-in general purpose ADC
 External analog inputs assigned to GPIOs (3 ch assigned to General Purpose IOs)
 Internal VDD monitoring (1 ch, connected inside)
 Package:
 TC35667FTG-006: P-VQFN40-0606-0.50-001 [40 pin, 6 x 6 mm, 0.5 mm pitch, 0.9 mm thickness]
 TC35667FSG-006: P-VQFN40-0505-0.40-002 [40 pin, 5 x 5 mm, 0.4 mm pitch, 0.9 mm thickness]