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TC35679

Ultra-Low Current Single-Chip Controller for Bluetooth Low Energy (4.2)

TC35679

The TC35679 achieves extremely low current consumption, it delivers long operating times for applications powered by small coin batteries making it perfectly suited for wearable technology, medical equipment, smartphone accessories and remote controls. TC35679 supports the Bluetooth Low Energy (BLE) 4.2 standard and comes with embedded BLE stack and GATT profile.  

Key Benefits

  • Flexible system architectures through:
    • Embedded Bluetooth profile model (API over host UART)
    • Host or stand alone mode are possible (with embedded Bluetooth stack and profile, external EEPROM needed for stand alone mode application code)
  • Bluetooth qualified embedded BLE stack and GATT profile for easy Bluetooth product qualification
  • Ultra-low bill of materials due to very few external components:
    • System integration is simplified by various on-chip peripherals
    • On-chip silicon oscillator for sleep mode removes the need for an external crystal or clock source
    • Only a small RF circuit is necessary due to built-in discrete components
  • Supports over-the-air (OTA) update of system software
  • The device can operate at voltages between 1.8V and 3.6V making it suitable for use with various battery types such as coin cell, AAA, or AA
  • Various sleep modes and clock options to optimize power consumption
  • Supports a multiple number of simultaneous master/slave connections
  • QFN40 packages allow small and cheap form factor designs

TC35679 Features

  • Bluetooth Low Energy (BLE) 4.2 compliant
  • Supports BLE GAP central and peripheral mode
  • Internal RAM for application code, data patches
  • On-chip balun, antenna switch, LNA, DC-DC converter
  • Operational Voltage: 1.8V to 3.6V
  • BLE TX peak power consumption: 3.3mA (@0dBm)
  • BLE RX peak power consumption: 3.3mA
  • On-chip silicon oscillator for sleep mode
  • Deep sleep mode: Less than 100nA (@3.0V)
  • Transmitter Output Power: 0dBm to -20dBm (4dB steps)
  • RX Sensitivity: -93dBm (typ.)
  • Operating Temperature Range: -40°C to 85°C
  • Package: 40pin QFN 5mm x 5mm 0.4 mm pitch
  • Profiles: GATT (Generic Attribute Profile), including server and client functions
  • Interfaces: UART (2), SPI & I2C interface, PWM output (4 channels), ADC (6/8 channels), 17 programmable IO
  • Single Wire Debug (SWD) interface

TC35679 Block Diagram

TC35679 Block Diagram

Further Information

The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc.

·Before creating and producing designs and using, customers must also refer to and comply with the latest versions of all relevant TOSHIBA information and the instructions for the application that Product will be used with or for.