HT48R70A-1 データシートの表示（PDF） - Holtek Semiconductor

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HT48R70A-1

I/O Type 8-Bit MCU

Holtek Semiconductor 

Pin Assignment

PB5 1

PB4 2

PA3 3

PA2 4

PA1 5

PA0 6

PB3 7

PB2 8

P B 1 /B Z 9

P B 0 /B Z 1 0

P E 3 11

P E 2 12

P E 1 13

P E 0 14

P D 7 15

P D 6 16

P D 5 17

P D 4 18

V S S 19

IN T 2 0

TM R 0 21

P C 0 22

P C 1 23

P C 2 24

48 P B 6

47 P B 7

46 P A 4

45 P A 5

44 P A 6

43 P A 7

42 P F0

41 P F1

40 P F2

39 P F3

38 O S C 2

37 O S C 1

36 V D D

35 R E S

34 TM R 1

33 P D 3

32 P D 2

31 P D 1

30 P D 0

29 P C 7

28 P C 6

27 P C 5

26 P C 4

25 P C 3

H T 4 8 R 7 0 A -1 /H T 4 8 C 7 0 -1

4 8 S S O P -A

HT48R70A-1/HT48C70-1

PA1

PA0

PE7

PE6

PE5

PE4

PB3

PB2

P B 1 /B Z

P B 0 /B Z

PE3

PE2

PE1

PE0

PD7

PD6

PD5

PD4

VSS

64 63 62 61 60 59 58 57 56 55 54 53 52

1

51

2

50

3

49

4

48

5

47

6

46

7

45

8

44

9

H T 4 8 R 7 0 A -1 /H T 4 8 C 7 0 -1

43

10

6 4 Q F P -A

42

11

41

12

40

13

39

14

38

15

37

16

36

17

35

18

34

19

33

20 21 22 23 24 25 26 27 28 29 30 31 32

PA7

PF0

PF1

PF2

PF3

O SC2

O SC1

PF4

PF5

PF6

PF7

VDD

RES

TM R 1

PD3

PD2

PD1

PD0

PC7

Pin Description

Pin Name I/O

Options

Description

PA0~PA7

Wake-up

Bidirectional 8-bit input/output ports

I/O

Pull-high*

Each bit can be configured as a wake-up input by options. Software instruc-

CMOS or Schmitt tions determine the CMOS output or Schmitt trigger or CMOS input with or with-

Input

out pull high resistor (by options).

PB0/BZ

PB1/BZ I/O

PB2~PB7

Pull-high*

I/O or BZ/BZ

Bidirectional 8-bit input/output ports

Software instructions determine the CMOS output or Schmitt trigger input

(pull-high depends on options).

The PB0 and PB1 are pin-shared with the BZ and BZ, respectively. Once the

PB0 and PB1 are selected as buzzer driving outputs, the output signals come

from an internal PFD generator (shared with Timer/Event Counter 0).

VSS

¾

¾

Negative power supply, ground

INT

I

¾

External interrupt Schmitt trigger without pull high resistor

Edge trigger is activated during high to low transition.

TMR0

I

¾

Schmitt trigger input for Timer/Event Counter 0

TMR1

I

¾

Schmitt trigger input for Timer/Event Counter 1

PC0~PC7 I/O

Pull-high*

Bidirectional 8-bit input/output ports

Software instructions determine the CMOS output or Schmitt trigger input

(pull-high depends on options).

RES

I

¾

Schmitt trigger reset input, active low

VDD

¾

¾

Positive power supply

Rev. 2.10

3

August 7, 2007

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