三合微科股�½有限公司
S
AM
H
OP
Microelectronics Corp.
SM5272B
3
12
RF DECODER
DECODER WITH DATA OUTPUT PINS
Power ON
NO
Address
match?
YES
NO
Address
match?
YES
After Power On SM5272B is set in Address
search mode, if SM5272B finds 2 consecutive
Address that matches the Address setting of
SM5272B.
SM5272B will enter Data Compare mod. It will
compare previously 2 received data, if they
match then SM5272B will set VT high and send
data O/P.
NO
Data match?
YES
Active VT and
O/P data
YES
SM5272B re-enters Address search mode, after
2 consecutive Address that do not match
setting on S M 5 2 7 2 B w i l l d i s a b l e V T a n d
momentary's data but keep Latch's data intact.
Address
match?
NO
YES
Address
match?
NO
Disable VT and Remove the
Momentary data.
But keep the Latch Type
data intact.
Page 8
OCT. 26, 2001
SAMHOP [ SAMHOP MICROELECTRONICS CORP. ]
