SM5272B Datasheet, PDF (8/12 Pages) SamHop Microelectronics Corp. – 3 RF DECODER

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SAMHOP Microelectronics Corp.
DECODER WITH DATA OUTPUT PINS
SM5272B
3¹² RF DECODER
Power ON
NO _Address
match?
YES
NO _Address
match?
YES
NO _{Data match?}
YES
Active VT and
O/P data
YES
Address
match?
NO
YES
Address
match?
NO
Disable VT and Remove the
Momentary data.
But keep the Latch Type
data intact.
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.
SM5272B re-enters Address search mode, after
2 consecutive Address that do not match
setting on SM5272B will disable VT and
momentary's data but keep Latch's data intact.
Page 8
OCT. 26, 2001