ARMY MIL-C-70490 (1)-1986 CIRCUIT CARD ASSEMBLY MEMORY《电路板组装记忆》.pdf

1、MIL-C-70470 (1) 12 W 777770b 0355367 7 W MIL-C-7049O(AR) AMENDMENT 1 21 March 1986 ! I MILITARY SPECIFICATION CIRCUIT CARD ASSEMBLY, MEMORY This Amendment forms a part of Military Specification MIL-C-70490(AR), dated 4 April 1985, and is approved for use within the U.S. Army Armament, Munitions and

2、Chemical Cmmand and is available for use by all Departments and Agencies of the Department of Defense. PAGE 6 3.2.1.1, line 1: Delete the word “either“. 3.2.1.1, line 2: Delete “or“ and substitute “and“. PAGE 10 3.3.2, line 2: Delete “and“ and substitute “through“. 3.3.3# line 2: Delete and“ and sub

3、stitute “through“. PAGE 14 4.6.1, line 7: Delete the fourth sentence starting with “Upon“ and substitute: “Upon completion of the 20 minute exposure, the temperature of the chamber shall be raised at the rate of 10- (18OF) per minute plus or minus 1% (1.8OF) to -$O* (-40OF). At -4OOC, operating powe

4、r shall be applied to the unit under test and shall continue to be applied until the end of each cycle. The chamber temperature shall then be raised at the rate of 1OOC Cl8OF) per minute plus or minus lOC (1.80F) to +71OC (+160F) .I 4.6.1, lines 17 and 18: Delete and“ and substitute “through“. AMSC

5、N/A 1 of 2 FSC 1220 Approved for public release; distribution is unlimited. DISTRIBUTION STATEMENT A. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-70490 (AR) AMENDMENT 1 PAGE 15 r 4.6.2, line 9: 4.6.2, line 10: Delete and“ and substitute “th

6、rough“. 4.6.3, line 1: Delete “tests 4.6.3“ and substitute “tests 4.6.3, line 1: Delete “4.6.4“ and substitute “4.6.5“. 4.6.3 Add new last sentence: Delete “4.6.3 and 4.6.9“ and substitute “4.6.3 through “4.6.9“. 4.6.4 I . “The last inspectionftest performed prior to acceptance and delivery shall be the Memory Read Cycle Test on the EPROM 4.6.5) .“ Army-AR Army-AR (Reference EPROM Program Cycle Test paragraph number Custodian: Preparing activity: (Protect 12 S0-A3 14 1 k 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-