Application Circuits

HT48E10

Rev. 1.50

21

October 31, 2006

P B 0 / B Z

P B 1 / B Z

P A 0 ~ P A 7

P C 0 / I N T

P C 1 / T M R

P B 2 ~ P B 7

P C 2

H T 4 8 E 1 0

O S C 1

O S C 2

O S C

C i r c u i t

S e e R i g h t S i d e

R E S

0 . 1 m F *

1 0 0 k W

V D D

V S S

0 . 1 m F

0 . 0 1 m F *

1 0 k W

O S C C i r c u i t

O S C 1

O S C 2

C r y s t a l S y s t e m O s c i l l a t o r

F o r t h e v a l u e s ,

s e e t a b l e b e l o w

R C S y s t e m O s c i l l a t o r

R 1

C 1

C 2

O S C 1

O S C 2

4 7 0 p F

N M O S o p e n d r a i n

Options

The following table shows all kinds of options in the microcontroller. All of the options must be defined to ensure having

a properly functioning system.

Items

Options

1

2

CLRWDT instruction: one or two instruction(s)

3

4

PA wake-up

5

PA CMOS/Schmitt input

6

PA pull-high enable or disable

7

PB pull-high enable or disable

8

PC pull-high enable or disable

9

BZ/BZ enable or disable

10

LVR function: enable or disable

11

System oscillator: RC or crystal