DA14681 Datasheet | Renesas

description line batteries The DA14681 is a flexible System-on-Chip bining an application processor, memories, cryptography engine, power management unit, digital and analog peripherals and a Bluetooth Low Energy MAC engine and radio transceiver. The DA14681 is based on an ARM® Cortex®-M0 CPU - Charger (up to 5.0 V) with programmable curves - High accuracy state-of-charge fuel gauge - Programmable threshold for brownout detection - Digitally controlled oscillators and PLL - 16 MHz crystal oscillator - 16 MHz RC oscillator - 32 k Hz crystal and RC oscillator delivering up to 84 DMIPS and provides a flexible - 11.7 k Hz RCX oscillator memory architecture, enabling code execution from - Low power PLL up to 96 MHz embedded memory (RAM, ROM) or non-volatile mem- - Three general purpose timer/counters with PWM ory (OTP or external Quad-SPI FLASH). - One 16-bit up/down timer/counter with PWM The advanced power management unit of the DA14681 enables it to run from primary and secondary batteries, as well as provide power to external devices. The on-chip charger and state-of-charge fuel gauge allow the DA14681 to natively charge rechargeable batteries over USB. available in extended/deep sleep mode - Application cryptographic engine with ECC, AES- 256, SHA-1, SHA-256, SHA-512 and True Random Number Generator - Digital interfaces - 37 (AQFN) or 21 (WLCSP) general purpose I/Os with programmable voltage levels An on-chip PLL enables on-the-fly tuning of the system - Quad-SPI FLASH interface clock between 32 k Hz and 96 MHz to meet high pro- - Two UARTs, one with hardware flow control cessing requirements. Several optimised sleep modes - Two SPI+™ interfaces are available to reduce power dissipation when there is - Two I2C bus interfaces at 100 k Hz, 400 k Hz no activity. - Three-axes capable Quadrature Decoder Features - PDM + HW decimator (2 mics or 2 speakers) - I2S/PCM master/slave interface up to 8 channels - plies to Bluetooth v4.2, ETSI EN 300 328...