S3C72M5 datasheet(10/38 Pages) SAMSUNG

Part #	S3C72M5

Description	single-chip CMOS microcontroller

Download	38 Pages

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Manufacturer	SAMSUNG [Samsung semiconductor]

Direct Link	http://www.samsung.com/Products/Semiconductor

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10 / 38 page

PRODUCT OVERVIEW

S3C72M5/C72M7/C72M9/P72M9 (Preliminary Spec)

1-10

PIN DESCRIPTIONS

Table 1-1. S3C72M5/C72M7/C72M9 Pin Descriptions

Pin Name

Pin Type

Description

Number

Share Pin

P0.0

P0.1

P0.2

P0.3

I/O

4-bit I/O port.

1-bit and 4-bit read/write and test is possible.

4-bit unit pull-up resisters are assignable to input pins

by software and are automatically disabled for output

pins. Each bit pin can be allocated as input or output

(1-bit unit). The N-ch open drain or push-pull output

may be selected by software (1-bit unit).

16

17

18

19

SCK/K0

SO/K1

SI/K2

BUZ/K3

P1.0

P1.1

P1.2

P1.3

I

4-bit input port.

1-bit and 4-bit read and test is possible.

4-bit unit pull-up resistors are assignable to input pins

by software.

28

29

30

31

INT0

INT1

INT2

INT4

P2.0

P2.1

P2.2

P2.3

I/O

4-bit I/O port. 1-bit and 4-bit read/write and test is

possible. I/O function is same as port 0.

32

33

34

35

M

LCDFR

CLO1

CLO2

P3.0

P3.1

P3.2

P3.3

I/O

4-bit I/O port. 1-bit and 4-bit read/write and test is

possible. I/O function is same as port 0.

36

37

38

39

TCLO0/CL

TCLO1

TCL0

TCL1

P4.0

P4.1

P4.2

I/O

3-bit I/O port. I/O function is same as port 0 except

that port 4 is 3-bit I/O port.

40

41

42

CIN0

CIN1

CIN2

P6.0

P6.1

P6.2

P6.3

P7.0–P7.3

I/O

4-bit I/O port. 1-, 4-bit and 8-bit read/write and test is

possible. 4-bit unit pull-up resisters are assignable to

input pins by software and are automatically disabled

for output pins. Each bit pin can be allocated as input

or output (1-bit unit). The N-ch open drain or push-

pull output may be selected by software (4-bit unit).

43

44

45

46

47–50

K4/SEG79

K5/SEG78

K6/SEG77

K7/SEG76

SEG75–72

P8.0–P8.3

P9.0–P9.3

I/O

4-bit I/O port. 1-, 4-bit and 8-bit read/write and test is

possible. I/O function is same as port 6, 7.

51–54

55–58

SEG71–68

SEG67–64

P10.0–P10.3

P11.0–P11.3

I/O

4-bit I/O port. 1-, 4-bit and 8-bit read/write and test is

possible. I/O function is same as port 6, 7.

59–62

63–66

SEG63–60

SEG59–56

P12.0–P12.3

P13.0–P13.3

I/O

4-bit I/O port. 1-, 4-bit and 8-bit read/write and test is

possible. I/O function is same as port 6, 7.

67–70

71–74

SEG55–52

SEG51–48

SCK

I/O

Serial I/O interface clock signal

16

P0.0

SO

I/O

Serial data output

17

P0.1

SI

I/O

Serial data input

18

P0.2

BUZ

I/O

2, 4, 8, 16 kHz frequency output for buzzer sound

19

P0.3

K0–K3

K4–K7

I/O

External interrupts with rising/falling edge detection

16–19

43–46

P0.0–P0.3

P6.0–P6.3

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