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In its official teardown, iFixit noted that its look at the integrated circuits on the new iPod nano's logic board was "hindered" because of the fact that many of the chips are unnamed. Of the nine chips on the logic board, only four could be properly identified.
Leading the way is the Toshiba THGBX2G7D2JLA01, which includes 16 gigabytes of NAND flash. The Broadcom BCM2078KUBG also includes both the Bluetooth and FM radios.
Joining them is a touchscreen controller from Texas Instruments identified as 343S0538, as well as a chip from NXP Semiconductors labeled 1609A1. The remaining mystery chips follow
iFixit also found that the battery like Dell 75UYF Battery , Dell 8027U Battery , Dell 8649R Battery , Dell 8N544 Battery , Dell 9943E Battery , Dell 9T119 Battery , Dell 9T255 Battery , Dell 9X821 Battery , Dell BAT1194 Battery , Dell BAT1297 Battery , Dell BAT30WL Battery , Dell BAT3151L8 Battery in the new iPod nano is soldered directly to the logic board and adhered to the back of the display. They did find a plastic pull tab presumed to be in place for removing the battery, however they found the adhesive holding the battery in place was too strong.