r5912 - trunk/gta02-core/docs/ecn

[werner at docs.openmoko.org]

Author: werner
Date: 2010-04-07 22:02:40 +0200 (Wed, 07 Apr 2010)
New Revision: 5912

Modified:
   trunk/gta02-core/docs/ecn/STATUS
   trunk/gta02-core/docs/ecn/ecn0045.txt
Log:
- docs/ecn/ecn0045.txt: corrected the status of U4902 and changed the
  recommended action.



Modified: trunk/gta02-core/docs/ecn/STATUS
===================================================================
--- trunk/gta02-core/docs/ecn/STATUS	2010-04-07 19:24:04 UTC (rev 5911)
+++ trunk/gta02-core/docs/ecn/STATUS	2010-04-07 20:02:40 UTC (rev 5912)
@@ -68,3 +68,4 @@
 0042    AUDIO
 0043	AUDIO
 0044	PMU
+0045	general

Modified: trunk/gta02-core/docs/ecn/ecn0045.txt
===================================================================
--- trunk/gta02-core/docs/ecn/ecn0045.txt	2010-04-07 19:24:04 UTC (rev 5911)
+++ trunk/gta02-core/docs/ecn/ecn0045.txt	2010-04-07 20:02:40 UTC (rev 5912)
@@ -31,9 +31,13 @@
 found. The connectors by Murata and Hirose are available at Digi-Key,
 and so is the acceleration sensor.
 
-U3001, U4902, and U7802 can be purchased from major distributors as
-well.
+U3001 and U7802 can be purchased from major distributors as well.
 
+The NAND gate U4902 is difficult to source in the package GTA02 uses.
+Different packages are available and are easier to source. In
+particular, the YZP (BGA) package would allow the use of a nearly
+identical NXP part as well. See bom/research/u4902 for details.
+
 U2201 [1] (13.0 x 11.0 x 1.0 mm) can be replaced with the
 pin-compatible Micron MT48H16M32LFCM-75:B [2] (13.0 x 10.0 x 1.0 mm).
 
@@ -69,8 +73,9 @@
 
 Recommended actions:
 
-- U3001, U4902, U7802, Murata, Hirose: use original parts
-- U2201, CON7501, resistors, capacitors: replace as indicated above
+- U3001, U7802, Murata, Hirose: use original parts
+- U2201, U4902, CON7501, resistors, capacitors: replace as indicated
+  above
 - U1701, U7601: keep on searching
 - CON1701, JK4401: it would be great if someone could find parts more
   similar to the respective original. If not, we'll have to see if we