The IC is available for use in harsh automotive environments and extended temperature ranges. The mixed-signal TC35679IFTG contains both analog RF and baseband digital parts to provide a complete system in a single, compact and low-profile, 40-pin, 6- x 6- x 1-mm QFN ‘wettable flank’ package, with a pin pitch of 0.5mm.
The TC35679 provides Bluetooth® Host Control Interface (HCI) functions alongside low energy GATT profile functions (as defined by Bluetooth®) specifications. Further, the IC becomes a fully-fledged application processor when used in conjunction with an external non-volatile memory, or can be used in combination with an external host processor.
This Bluetooth IC is based on an ARM® Cortex®-M0 processor and includes a sizeable 384kB of on-board mask ROM to support the Bluetooth® baseband process and a further 192kB of on-board RAM for Bluetooth® application programs and data.
A key feature of the TC35679 is its ability to form part of sophisticated systems as a result of 17 General Purpose IO (GPIO) lines and multiple communications options including SPI, I2C and a 921.6 kbps, two-channel UART. The GPIO lines offer access to a range of on-chip features including a wake-up interface, four-channel PWM interface, 6-channel AD converter and the ability to control the control interface of an optional external power amplifier for applications requiring a longer reach. On chip DC-DC converter or LDO circuits adjust the external voltage supply to the required values on chip.