Pin Assignment

HT68F03M/HT68F04M/HT66F03M/HT66F04M

Rev. 1.10

3

May 24, 2010

F l a s h / E E P R O M

P r o g r a m m i n g

C i r c u i t r y

W a t c h d o g

T i m e r

8 - b i t

R I S C

M C U

C o r e

R e s e t

C i r c u i t

I n t e r r u p t

C o n t r o l l e r

E x t e r n a l

R C / X t a l

O s c i l l a t o r s

1 2 - B i t A / D

C o n v e r t e r

I n t e r n a l R C

O s c i l l a t o r

E E P R O M

D a t a

M e m o r y

F l a s h

P r o g r a m

M e m o r y

R A M

D a t a

M e m o r y

L o w

V o l t a g e

R e s e t

L o w

V o l t a g e

D e t e c t

C o m p a r a t o r s

T i m e B a s e

S t a c k

D C - D C

C o n v e r t e r

T i m e r

M o d u l e s

I / O

Note that the HT68F0x devices do not contain an A/D converter.

H T 6 6 F 0 4 M

1 6 N S O P - A

1 6

1 5

1 4

1 3

1 2

1 1

1 0

9

1

2

3

4

5

6

7

8

N C

P A 4 / T C K 0 / T P 1

P A 5 / [ T C K 2 ] / [ T P 0 ] / T P 2 B / O S C 2

P A 6 / [ T C K 0 ] / [ T P 1 ] / T P 2 A / O S C 1

P A 7 / [ I N T ] / [ T C K 0 ] / [ T C K 1 ] / [ T P 1 ] / [ T P 2 A ] / R E S

V D D & A V D D

P W D N

V O U T

N C

P A 3 / I N T / T C K 1 / [ T C K 2 ] / T P 0 / A N 3

P A 2 / C X / [ T C K 2 ] / [ T P 0 ] / [ T P 2 B ] / A N 2

P A 1 / [ T P 2 A ] / C - / A N 1 / V R E F

P A 0 / [ T P 2 B ] / C + / A N 0

V S S & A V S S

G N D

L X

H T 6 6 F 0 3 M

1 6 N S O P - A

1 6

1 5

1 4

1 3

1 2

1 1

1 0

9

1

2

3

4

5

6

7

8

N C

P A 3 / I N T / T C K 1 / T P 0 / A N 3

P A 2 / C X / [ T P 0 ] / A N 2

P A 1 / C - / A N 1 / V R E F

P A 0 / C + / A N 0

V S S & A V S S

G N D

L X

N C

P A 4 / T C K 0 / T P 1

P A 5 / [ T P 0 ] / O S C 2

P A 6 / [ T C K 0 ] / [ T P 1 ] / O S C 1

P A 7 / [ I N T ] / [ T C K 0 ] / [ T C K 1 ] / [ T P 1 ] / R E S

V D D & A V D D

P W D N

V O U T

H T 6 8 F 0 3 M / H T 6 8 F 0 4 M

1 6 N S O P - A

N C

P A 3 / I N T / T C K 1 / T P 0

P A 2 / C X / [ T P 0 ]

P A 1 / C -

P A 0 / C +

V S S

G N D

L X

N C

P A 4 / T C K 0 / T P 1

P A 5 / [ T P 0 ] / O S C 2

P A 6 / [ T C K 0 ] / [ T P 1 ] / O S C 1

P A 7 / [ I N T ] / [ T C K 0 ] / [ T C K 1 ] / [ T P 1 ] / R E S

V D D

P W D N

V O U T

1 6

1 5

1 4

1 3

1 2

1 1

1 0

9

1

2

3

4

5

6

7

8