HT6026 데이터 시트보기 (PDF) - Holtek Semiconductor

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HT6026

Remote control encoder

Holtek Semiconductor 

HT6026

Address/data programming (preset)

The status of each address/data pin can be indi-

vidually pre-set to logic “high”, “low”, or “float-

ing”. If a transmission enable signal is applied,

the encoder scans and transmits the status of

9-bit address/data serially in the order AD0 to

AD8. But if the trigger signal is not applied, the

chip only consumes a standby current which is

less than 1µA (for VDD=5V).

The address pins are usually pre-set to transmit

data codes with their own particular security

codes by the DIP switches or PCB wiring, while

the data is selected by the push button or elec-

tronic switches.

The following figure demonstrates an applica-

tion using the HT6026:

The transmitted information is as listed:

Pilot

&

Sync.

AD0

1

AD1

Z

AD2

1

AD3

Z

Z: floating

AD4

Z

AD5

Z

AD6

0

AD7

1

AD8

Z

5

2nd Oct ’97

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