HT604 datasheet(7/9 Pages) HOLTEK

7 / 9 page

Address/Data sequence

The following provides a table of address/data sequence for various models of the 318 series decoders. A

correct device should be selected according to the sindividual address and data requirements.

Part No.

Address/Data Bits

0~3

6~9

HT604L

A0~A3

¾ A6~A9

A11

D12

D13

D14

D15

¾¾

HT614

A0~A3

¾ A6~A9

A11

D12

D13

D14

D15

¾¾

HT692

A0~A3

¾¾ A6~A9

A11

A12

D14

D15

¾¾

Note: ²¾² is a dummy code which is left ²open² and not bonded out.

Oscillator frequency vs supply voltage

The recommended oscillator frequency is fOSCD (decoder) @ fOSCE (encoder)

HT604L/614/692

April 24, 2000

Ro s c ( 9 )

120k

150k

180k

220k

270k

330k

390k

470k

560k

680k

820k

1. 5M

V DD ( V D C)

3. 00

2.7 5

2.5 0

2.25

2.0 0

1. 75

1. 50

1. 25

( 100 k H z ) 1 . 0 0

0. 75

0. 50

0. 25

fo s c

( S cal e)

234

789

1 0

1212. 5

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