W77C32-25 datasheet(7/71 Pages) WINBOND

Part #	W77C32-25

Description	8 BIT MICROCONTROLLER

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Manufacturer	WINBOND [Winbond]

Direct Link	http://www.winbond.com

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7 / 71 page

Preliminary W77C32

Publication Release Date: March 1999

- 7 -

Revision A1

0000h

FFFFh

80h

7Fh

00h

64 K

Bytes

External

Data

Memory

Indirect

Addressing

RAM

Direct &

Indirect

Addressing

RAM

SFRs

Direct

Addressing

only

FFh

FFFFh

0000h

64K bytes

of

External

Program

Memory

1K Bytes

On-chip SRAM

0000h

03FFh

Figure 1. Memory Map

FFh

80h

7Fh

30h

2Fh

2Eh

2Dh

2Ch

2Bh

2Ah

29h

28h

27h

26h

25h

24h

23h

22h

21h

20h

1Fh

18h

17h

10h

0Fh

08h

07h

00h

78

79

7A

7B

7C

7D

7E

7F

70

71

72

73

74

75

76

77

68

69

6A

6B

6C

6D

6E

6F

60

61

62

63

64

65

66

67

58

59

5A

5B

5C

50

51

52

53

54

5D

5E

5F

55

56

57

48

49

4A

4B

4C

4D

4E

4F

40

41

42

43

44

45

46

47

38

39

3A

3B

3C

3D

3E

3F

30

31

32

33

34

35

36

37

28

29

2A

2B

2C

2D

2E

2F

20

21

22

23

24

25

26

27

18

19

1A

1B

1C

1D

1E

1F

10

11

12

13

14

15

16

17

08

09

0A

0B

0C

0D

0E

0F

00

01

02

03

04

05

06

07

Indirect RAM

Direct RAM

Bank 3

Bank 2

Bank 1

Bank 0

Figure 2. Scratchpad RAM / Register Addressing

Bit Addressable

20H

−2FH

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