Block Diagram

TE trigger

HT12E

DATA trigger

HT12A

Note: The address data pins are available in various combinations (refer to the address/data table).

HT12A/HT12E

2

April 11, 2000

O s c illa t o r

¸ 3 D i v i der

OS C 1

OS C 2

VD D

V S S

1 2 T r a n sm i ssi o n

G a t e C ir c u it

¸ 12 C o u n t e r &

1 of 12 D e c o d e r

B i n a r y D et ec t o r

TE

A0

A7

DO UT

D a t a S el ec t

& B u f f e r

Sy n c .

Ci r c u i t

AD 8

A D 1 1

O s c i l l at or

¸ 576 D i v i der

VD D

VS S

1 2 T r a n sm i ssi o n

G a t e C ir c u it

¸ 12 C o u n t e r &

1 of 12 D e c o d e r

B i n a r y D et ec t o r

DO UT

D a t a S el ec t

& B u f f e r

Sy n c .

Ci r c u i t

L/ M B

X2

X1

A0

A7

D8

D1 1