From: eLinux.org

TvNow

Tvnow-external.jpg

U1 Sharp LH79524

  1. ARM720T Processor

U2 Conexant CX25836-3A

  1. Located below a shield. TQFP-64
  2. Single chip video decoder. http://elinux.org/images//8/83/Pdf.gif Datasheet http://elinux.org/images/d/da/Info_circle.png and http://elinux.org/images//8/83/Pdf.gif Product Brief http://elinux.org/images/d/da/Info_circle.png.
  3. IO are LVTTL. IOL=4mA drive.

U4 Unknown Chip On Board(CoB) package
U5 Green unmarked 0805 package

  1. Located on USB board

U6 Green unmarked 0805 package

  1. Located on USB board

U7 Unknown Chip On Board(CoB) package
U8 TI LM324 U9 Hynix HY57V643220DT-6

  1. Long, leaded TSOP II 86 pin package
  2. SDRAM, VDD=3.3 & VDDQ=3.3V, 64Mbit, x32, 4banks, LVTTL
  3. Decoded per the http://elinux.org/images//8/83/Pdf.gif datasheet http://elinux.org/images/d/da/Info_circle.png. 6ns (166MHz), 2Mx32

U11 Hynix HY27UA081G1M

  1. Wide, leaded package
  2. NAND flash, 1Gb

U12 U14 Unknown Chip On Board(CoB)
package

Boards The entire system is composed of 4 boards. Most electrolytics are
through hole. However, there are a few scattered tantalums.

  1. * There is a main board with the CPU, memory, and flash, and a SD socket. There is a cylinder shaped crystal (probally 32KHz, watch xtal) and a 28.6363Mhz xtal.
  2. * There is a board that has the AV inputs on one side.
  3. * On the otherside, there is a board with a mini USB connector.
  4. * A 4th board sits on top of 2 sets of fine (0.05 or finer) headers.

discusion:
http://forums.parallax.com/forums/default.aspx?f=15&m=158549

vendor:
http://www.hasbro.com/tiger/default.cfm?page=browse&product_id=18617

Tvnow-internal.jpg

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