中国自控网!“#$%4!234567849: 177 ;“!“#$%;+- 9/() 52331.45+/42. (+- (4?( ,);4+C4;4/D9,)+0 E :,4/)471/2.8)+-4;D F),) /() *+*), 04-51-)0 0)/+4; /() *,4.54*;) 26471/2.8+.0 4/- +*;45+/42. 4. (23) :+,.4.? -D-/)3:;7?5 E769FG 6H; 5F6G B6;FFI;B6=87BBI 5 ?=ABC DEFGHIJKFGL JMNFJOPQRSTUVKHI-WX4Y G?BC_abcEdefRghijklmnop q r7sgtu4 5-,vwxyz |$_? H ?IJK ?4 ?,v? ? ? 471/2.8?,v?7./0123?-?_?-? ?HI?XK01?_tuL?7?HI01HI? ?i4$工作原理471/2.828|j0?E?4 O( P ?3 jr7FJOP?M?-?# 7 471/2.8UV HI-? K H ?3$?A4? ? ? ? DS1990A 01H ? ? DS1991 02H ? 512?NVRAM DS1992 08H ? 1K?NVRAM DS1993 06H ? 4K?NVRAM DS1994 04H ? 4K?NVRAM DS1995 0AH ? 16K?NVRAM DS1996 0CH ? 64K?NVRAM DS1982 09H ? 1K?EPROM DS1985 0BH ? 16K?EPROM DS1986 0FH ? 64K?EPROM DS1920 10H ? 16?EPROM %!8$?7 23456789:“;?ABBCDE! ! “ “ #$% “ “ ?5689 ()*“ABC . z3“|2345607Oi 2345607s#4?O?xys#O,! # -.O+!-!()*81+,!-O?)*kO2345607? ?JTx?y?O,?)*TC +O?vwWxy? ?,?)*TC “O2345607?)*k?5O?5? 8/9?#$O ? =?(?O?EFG 3,%(*-, A3,B? :$-;-* :$C*BD- “!E00! 97&-*C1 F&$9G-*B a?AN%&!H$%H$!bsts?12060/9F.ee