www.dialog-semiconductor.com/bluetoothlowenergy

SoC Features

• 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

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8 Mb FLASH

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64 kB One-Time-Programmable (OTP) memory

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128 kB Data SRAM with retention capabilities

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16 kB Cache SRAM with retention capabilities

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128 kB ROM (including boot ROM and Bluetooth low energy stack)

• Power management

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Integrated Buck DC-DC converter (1.7 V - 4.75 V)

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Three power supply pins for external devices

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Supports Li-Polymer, Li-Ion, coin cells, NiMH and alkaline batteries

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Charger (up to 5.0 V) with programmable curves

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High accuracy state-of-charge fuel gauge

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Programmable threshold for brownout detection

• Clocks

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16 MHz crystal and RC oscillators

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32 kHz crystal and RC oscillators

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10.5 kHz RCX oscillator as a 32 kHz crystal replacement

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Low power PLL up to 96 MHz

• Three general purpose timer/counters with PWM, one of them 16-bit up/down timer/counter with

PWM available in extended sleep mode

• Application cryptographic engine with ECC, AES-256, SHA-1, SHA-256, SHA-512 and a FIPS

140-2-compliant True Random Number Generator

• Digital interfaces

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31 general purpose I/Os with programmable voltage levels

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Two UARTs, one with hardware flow control

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Two SPI+™ interfaces

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Two I²C bus interfaces at 100 kHz, 400 kHz

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Three-axis capable Quadrature Decoder

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PDM interface with HW sample rate converter (2 mics or 2 speakers)

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I²S/PCM master/slave interface up to 8 channels

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Keyboard scanner with de-bouncing

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Infrared (IR) interface (PWM)

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USB Full Speed (FS) device interface