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We've chipped away at this Pebble—now let's have a look at the motherboard. Front-side ICs include:

ST Micro STM32F439ZG 180 MHz ARM Cortex-M4-based MCU

Spansion S29VS128R 128 Mb, 65 nm MirrorBit Flash

Texas Instruments CC2564B Bluetooth and Dual-Mode Controller

Ambient light sensor

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