1. General Description
1.1 Product Concept
TC35661SBG-501 is a 1-chip CMOS LSI for Bluetooth™ communication, which includes an RF analog part and a Base band
digital part. TC35661 provides Bluetooth™ SPP (Serial Port Profile) function, GATT(Generic Attribute Profile) function, and LE(Low
Energy) function specified in Bluetooth™ Specifications.

1.2 Features
 EEPROM Interface
 I2C interface
 Host CPU Interface
 UART interface: Baud rate from 2.4kbps to 4.33Mbps
 General Purpose I/O (GPIO) with pull-up and pull-down resistors (19 pins)
 Wake-up Interface
 Wake-up input function and remote wake-up output function
 Supports Sleep Clock
 Internal divider for base action clock
 Supports external input
 Internal Sleep function
 LED Switching Function
 Power Supply: Single 1.8 3.6V
 Package
 P-TFBGA64-0505-0.5 [64balls, 5x5 mm, 0.5 mm pitch, 1.2 mm height]
Figure 1-1 Bluetooth™ stack in TC35661SBG-501
Phisical Layer
HCI
SDP