HT6222(2000) 데이터 시트보기 (PDF) - Holtek Semiconductor

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HT6222
(Rev.:2000)

Multi-Purpose Encoders

Holtek Semiconductor 

K n In p u t

DOUT

K n In p u t

DOUT

K 2 1 In p u t

K m In p u t

DOUT

HT6221/HT6222

Kn

36m s

t>108m s

K n c o d e tr a n s m is s io n

(a )

Kn

t<108m s

36m s

108m s

K n c o d e tr a n s m is s io n

(b )

Note: Kn can be one of K1~K64

Valid single-key input

K 21

Km

36m s

36m s

t>126m s

K 2 1 c o d e tr a n s m is s io n

1 0 8 m s ( m in .)

K 21+K m code

tr a n s m is s io n

Note: Km can be one of K22~K24

Valid double-key input

DOUT and LED

After the transmission codes are sent, the DOUT pin generates transmission codes with a carrier,

and the LED goes low to drive a transmission indicator.

10

March 2, 2000

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