HT81R09

HT81XXX

Rev. 1.40

4

March 1, 2005

O S C I

9

1 0

1 1

V S S

O U T 1

V D D

K E Y 3

I / O 2

I / O 1

K E Y 4

V P P

O E

( 0 , 0 )

1 2

1 3

1

V D D

2

3

4

5

6

7

8

1 4

1 5

1 6

Chip size: 51

´ 102.8 (mil)

2

* The IC substrate should be connected to VSS in the PCB layout artwork.