Nest Thermostat v3 Teardown

Quick and Dirty Look at the PCB

Work in progress, complements the FCC Application

Screen Side

• Freescale MCIMX6X3EVK10AB
  • Data Sheet
• 6TDID NW189
  • Micron NAND mt29f4g08abbdah4
• Freescale SMPF0200 51AEP KEPFTG
  • Potentially NXP MMPF0200 power management IC
• ELPIDA B443268PA-1D-F
  • 4Gb RAM
  • 16430R01200
• STM32L 151VCH6 78A2T V6
  • Probably LCD Driver?
• EM3581 1652A00MQL
  • Zigbee
• 66109 92143.1
  • Zigbee/RFID
• Unpopulated J17108, 14 pins -> off board connector?
• 4 test points in a row, UART?

Back Side

• SS7120009
  • Murata chipset with dimensions 7.8mmx8.4mmx1.00mm
  • Matches the Type ZP
  • Potentially Cypress CYW4339 chipset
• Dialog DA14580
  • Bluetooth
• Unpopulated J1204, 10 pins
• Unpopulated J17107, 14 pins -> off board connector?

Battery Adhesive

Healthy glob of white adhesive that was a real pain to remove. You can see the foil of the battery package being malformed.