Myalarm V-LCD1 Manual de usuario descargar pdf (Pagina 5)

Pin Functions

No. 7159-5/26

LC75813E, 75813T

Symbol

Pin No.

Function Active I/O

Handling

LC75813E

75813T

when unused

3 to 10

11 to 88

1 to 8

9 to 86

92 to 90

90 to 88

100

S1/P1 to S8/P8

S9 to S86

COM1 to COM3

COM4/S87

OSC

INH

LCD

Segment outputs for displaying the display data transferred by serial data

input. The pins S1/P1 to S8/P8 can be used as general-purpose output

ports when so set up by the control data.

Common driver outputs.

The frame frequency is f

Hz.

The COM4/S87 pin can be used as a segment output in 1/3 duty.

Oscillator connection.

An oscillator circuit is formed by connecting an external resistor and

capacitor to this pin.

Serial data transfer inputs. These pins are connected to the control

microprocessor.

CE: Chip enable

CL: Synchronization clock

DI: Transfer data

Display off control input

• INH = low (V

)....Off

S1/P1 to S8/P8 = low (V

)

(These pins are forcibly set to the segment output port

function and fixed at the V

level.)

S9 to S86 = low (V

)

COM1 to COM3 = low (V

)

COM4/S87 = low (V

)

• INH = high (V

) ..On

Note that serial data transfers can be performed when the display is forced

off by this pin.

Used to apply the LCD drive 2/3 bias voltage externally. This pin must be

connected to V

LCD

2 when 1/2 bias drive is used.

Used to apply the LCD drive 1/3 bias voltage externally. This pin must be

connected to V

LCD

1 when 1/2 bias drive is used.

Logic block power supply. Provide a voltage in the range 2.7 to 6.0 V.

LCD driver block power supply. Provide a voltage in the range 2.7 to 6.0 V.

—

I/O

—

Open

GND

Open

—

Ground pin. Connect to ground. — — —

VSS

VDD

S82

S79

S83

S84

COM2

VLCD

P4/S4

S10

S16

S21

S15

S34

S39

S44

S59

S58

S49

S50

S51

S52

S53

S54

S55

S56

S57

S60

S61

S62

S63

S64

S65

S66

S67

S68

S69

S70

S71

S72

S73

S74

S75

S76

S77

S78

P3/S3

P2/S2

P1/S1

S80

LC75813E

(QFP100E)

S81

S85

S86

COM3

S87/COM4

COM1

VLCD1

VLCD2

OSC

INH

S33

S32

S31

S30

S29CE

5180

5081

31100

301

P8/S8

P7/S7

P6/S6

P5/S5

S14

S20

S13

S12

S11

S19

S18

S17

S25

S24

S23

S22

S28

S27

S26

S38

S37

S36

S35

S43

S42

S41

S40

S48

S47

S46

S45

VDD

S86

S84

S76

S55

S51

S52

S53

S54

S56

S57

S58

S59

S60

S61

S62

S63

S64

S65

S66

S67

S68

S69

S70

S71

S72

S73

S74

S75

P5/S5

S11

P4/S4

P3/S3

P2/S2

P1/S1

S77

S79

S78

S80

LC75813T

(TQFP100)

S81

S82

S83

S85

S87/COM4

COM3

COM1

COM2

VLCD

VLCD1

VSS

VLCD2

OSC

INH

S35

S34

S33

S32

S31

S29

S30

S27

S28

S26DI

5175

5076

26100

251

S10

P8/S8

P7/S7

P6/S6

S16

S22

S15

S14

S13

S12

S21

S20

S19

S18

S17

S25

S24

S23

S40

S39

S38

S37

S36

S45

S44

S43

S42

S41

S50

S49

S48

S47

S46

Top view

Pin Assignments

1 2 3 4 5 6 7 8 9 10 ... 25 26

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Myalarm V-LCD1 Manual de usuario Pagina 5

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