View source for Nano 2G

{{DISPLAYTITLE:iPod nano (2nd generation)}}
[[Image:nano_2g_frt_a.jpg|300px]]
[[Image:nano_2g_bck_a.jpg|300px]]
==Components==
{| class="wikitable"
! Label !! Component !! Part !! Markings !! Notes
|-
| 1
| CPU
| Samsung S5L8701
|337S32918701, N042DQS, 0636 ARM
| System On Chip (SoC), includes ARM940T central processor, advanced DSP, 50kB boot ROM, 176kB SRAM, external RAM, flash and LCD controllers, USB(1.1-host; 2.0-function) and some other parts. Package: [http://www.samsung.com/global/business/semiconductor/support/PackageInformation/downloads/SystemLSI/FBGA/232_FBGA_1010_12_05.pdf 232-pin FBGA 10x10mm] or 224/226-pin 9x9mm. Similar chips: [http://www.samsung.com/global/business/semiconductor/productInfo.do?fmly_id=212&partnum=SA58700 SA58700X07].  Some documentation available for the S5L series can be found [[S5L8700 datasheet|here]]. The processor itself is Apple-branded and marked 337S3291 8701.
|-
| 2
| SDRAM
| [http://www.samsung.com/global/business/semiconductor/productInfo.do?fmly_id=753&partnum=K4M56163PG Samsung K4M56163PG]
|SEC 637 GG75, K4M56163PG, AQH373P1
| [http://pdf1.alldatasheet.net/datasheet-pdf/view/168204/SAMSUNG/K4M56163PG.html here] is the datasheet. This is the same chip used in the [[Nano 1G]]. Sometimes the Qimonda [http://www.alldatasheet.com/datasheet-pdf/pdf/207179/QIMONDA/HYE18L256169BFX-7.5.html HYE18L256] chip is used instead.
|-
| 3
| Utility Flash
| [http://www.sst.com/products/?inode=41422 SST39WF800A]
|SST39WF800A, 90-4C-C2QE, 0631287-A
| stores Disk Mode, Diagnostic Mode and the code to flash this chip. Tof has [http://home.gna.org/linux4nano/dumping_SST39WF800A.html managed to extract] this data and the dump can be obtained by emailing Emmanuel Fleury. All of the contents in the utility flash chip are encrypted from now on.
|-
| N/A
| DSP
| N/A
| N/A
| Doesn't seem to be present at all.
|-
| B1
| NAND Flash
| Varies
|TOSHIBA P11023, JAPAN 0636 KAE, TP0560, TH58NVG5D4CTG20
|
|-
| 6
| USB charging
| LTC4066
|Linear Technology, 6H, 4066, B8966
| 
|-
| 5
| Audio codec
| Wolfson WM8975
|APPLE, 338S0310, 68BTST8
| 
|-
| 4
| Step down regulator
| LM34910
|National Semiconductor, JM66RJ, L34910B
|
|-
| B2
| Power manager (below)
| NXP PCF50633UM
|APPLE, 338S0261, P29T6 04, cPG0637Y, 01/N2
|
|}

==Helpful pages==
Teardowns:
*http://www.ifixit.com/Guide/First-Look/iPod-Nano-2nd-Generation/592/1
*http://arstechnica.com/apple/reviews/2006/09/ipod-2g.ars/4
*http://www.eetimes.com/design/audio-design/4016200/Tear-Down-Inside-the-Apple-8GB-iPod-nano (useful because it shows the power manager)
*http://forums.rockbox.org/index.php?PHPSESSID=d69e900c3215a165adee7165ece4eccb&topic=6518.msg62700#msg62700 (beautiful PCB scans)
Other:
*http://home.gna.org/linux4nano/download/hardware_synth-1.0.pdf