DA14681-01000A92

Dialog’s SmartBond DA14681 enables designers to create second- and third-generation Bluetooth® low energy wearables to drive this fast-growing market forward. It’s the world’s first single-chip solution for wearable and other rechargeable devices.

Complies to Bluetooth 4.2, ETSI EN 300 328 and EN 300 440 Class 2 (Europe), FCC CFR47 Part 15 (US) and ARIB STD-T66 (Japan) • Flexible processing power - 32 kHz up to 96 MHz 32-bit ARM Cortex-M0 with 16 kBytes, 4-way associative cache - Three optimised power modes (Extended sleep, Deep sleep and Hibernation) reducing current down to 840 nA • Memories - 64 kB One-Time-Programmable (OTP) memory - 128 kB Data SRAM with retention capabilities - 16 kB Cache SRAM with retention capabilities - 128 kB ROM (including boot ROM and Bluetooth low energy stack) - Execution from external QSPI FLASH up to 32 MB • Power management - Integrated Buck DC-DC converter (1.7 V - 4.75 V) - Three power supply pins for external devices - Supports Li-Polymer, Li-Ion, coin cells, NiMH and alkaline batteries - Charger (up to 5.0 V) with programmable curves - High accuracy state-of-charge fuel gauge - Programmable threshold for brownout detection • Clocks - 16 MHz crystal and RC oscillators - 32 kHz crystal and RC