SA9205 datasheet(1/14 Pages) SAMES

номер детали	SA9205

подробное описание детали	6/3 X 8 PORT EXPANDER

PDF	14 Pages

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производитель	SAMES [Sames]

домашняя страница	http://www.sames.co.za

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SA9203/5

PDS039-SA9203/5-001

REV. A

20-08-96

FEATURES

n

Six (SA9203) or three (SA9205) 8-Bit

I/O Ports

n

Each bit of one port independently

programmable as input or output

n

Five (SA9203) or two (SA9205)

remaining ports can be individually

configured as input or output. (Direction

applicable to all 8 pins of each port.)

n

One 8-Bit port programmable as either

atched or transparent inputs

n

Supports byte-wide and bit-wide I/O

port addressing modes on all ports

n

Readback of all control and port

registers

n

Interfaces directly with multiplexed

address and data bus microprocessors/

microcontrollers

n

Internal address latch

n

Single +5V power supply

n

Low power CMOS

n

Completely static operation

n

TTL-level compatibility

4491

1/14

6/3 X 8 PORT EXPANDER

DESCRIPTION

The SAMES SA9203/5 Port Expander is a

CMOS device suited to

microprocessor

based applications requiring input/output

port expansion. The device interfaces very

simply to any microcontroller/micro-

processor with a multiplexed address/data

bus structure.

The SA9203 includes 8 independently

programmable I/O pins for Port A and Port

B to F (5 ports) independently programmable

as I/O. It is packaged in a PCB efficient 68

pin PLCC package. The SA9205 includes

8 independently programmable I/O pins for

Port A with Port B and Port C as indepen-

dently programmable I/O, packaged in a

cost effective 44 pin PLCC package.

FIGURE 1: PIN CONNECTION FOR

SA9203

2

SA9203

35

0

19

28

DR-01266

1

4

5

7

PB

2

PB

3

PB

6

PB

27

20

21

22

23

24

26

25

31

33 34

29 30

32

9

PA

1

2

3

5

6

4

0

PA

V

7

PA

PB

17

11

10

12

13

14

15

16

18

DD

87

6

5

43

PE 6

50

41 42

40

36 37 38 39

PE

5

2

3

4

PE

PE 0

1

43

46

45

44

47

48

49

63

1

666564

67

68

PF

3

4

5

PF

PF 0

2

1

PF

PF 6

PE 7

V DD

53

57

58

56

55

54

59

52

51

PF 7

61

62

60

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