Datasheet HT12A, HT12E (Holtek) - 2

HT12A/HT12E Block Diagram TE Trigger
HT12E O S C 2 O S C 1 O s c i l a t o r T E ¸ 3 D i v i d e r D a t a S e l e c t D O U T & B u f f e r ¸ 1 2 C o u n t e r & A 0 S y n c . 1 o f 1 2 D e c o d e r C i r c u i t 1 2 T r a n s m i s s i o n G a t e C i r c u i t A 7 B i n a r y D e t e c t o r A D 8 A D 1 1 V D D V S S
DATA Trigger
HT12A X 2 X 1 O s c i l a t o r ¸ 5 7 6 D i v i d e r D a t a S e l e c t D O U T & B u f f e r L / M B ¸ 1 2 C o u n t e r & S y n c . A 0 1 o f 1 2 D e c o d e r C i r c u i t 1 2 T r a n s m i s s i o n G a t e C i r c u i t A 7 B i n a r y D e t e c t o r D 8 D 1 1 V D D V S S Note: The address data pins are available in various combinations (refer to the address/data table).
Pin Assignment 8 - A d d r e s s 8 - A d d r e s s 8 - A d d r e s s 8 - A d d r e s s 4 - D a t a 4 - D a t a 4 - A d d r e s s / D a t a 4 - A d d r e s s / D a t a
N C 1 2 0 N C N C 1 2 0 N C A 0 1 1 8 V D D A 0 2 1 9 V D D A 0 1 1 8 V D D A 0 2 1 9 V D D A 1 2 1 7 D O U T A 1 3 1 8 D O U T A 1 2 1 7 D O U T A 1 3 1 8 D O U T A 2 3 1 6 X 1 A 2 4 1 7 X 1 A 2 3 1 6 O S C 1 A 2 4 1 7 O S C 1 A 3 4 1 5 X 2 A 3 5 1 6 X 2 A 3 4 1 5 O S C 2 A 3 5 1 6 O S C 2 A 4 5 1 4 L / M A 4 6 1 5 L / M A 4 5 1 4 T E A 4 6 1 5 T E A 5 6 1 3 D 1 1 A 5 7 1 4 D 1 1 A 5 6 1 3 A D 1 1 A 5 7 1 4 A D 1 1 A 6 7 1 2 D 1 0 A 6 8 1 3 D 1 0 A 6 7 1 2 A D 1 0 A 6 8 1 3 A D 1 0 A 7 8 1 1 D 9 A 7 9 1 2 D 9 A 7 8 1 1 A D 9 A 7 9 1 2 A D 9 V S S 9 1 0 D 8 V S S 1 0 1 1 D 8 V S S 9 1 0 A D 8 V S S 1 0 1 1 A D 8
H T 1 2 A H T 1 2 A H T 1 2 E H T 1 2 E 1 8 D I P - A 2 0 S O P - A 1 8 D I P - A 2 0 S O P - A
Rev. 1.20 2 February 20, 2009 Document Outline Features Applications General Description Selection Table Block Diagram Pin Assignment Pin Description Absolute Maximum Ratings Electrical Characteristics Functional Description Application Circuits Package Information Product Tape and Reel Specifications