MC14499DW データシートの表示（PDF） - Motorola => Freescale

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MC14499DW

7-Segment LED Display Decoder/Driver with Serial Interface

Motorola => Freescale 

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ MAXIMUM RATINGS* (Voltages referenced to VSS)

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Rating

Symbol

Value

Unit

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ DC Supply Voltage

VDD

– 0.5 to + 7

V

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Input Voltage, All Inputs

Vin

– 0.5 to VDD + 0.5

V

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Storage Temperature Range

Tstg

– 65 to + 150

°C

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ * Maximum Ratings are those values beyond which damage to the device may occur.

Functional operation should be restricted to the limits in the Electrical Characteristics table

or Circuit Operation section.

This device contains circuitry to protect the

inputs against damage due to high static

voltages or electric fields; however, it is ad-

vised that normal precautions be taken to avoid

application of any voltage higher than maxi-

mum rated voltages to this high impedance

circuit. For proper operation, it is recom-

mended that Vin and Vout be constrained to

the range VSS ≤ (Vin or Vout) ≤VDD.

ELECTRICAL CHARACTERISTICS (VDD = 4.5 to 6.5 V)

0°C

25°C

70°C

Characteristic

Symbol

Min

Max

Min

Max

Min

Max

Unit

Serial Port Input Voltage

‘0’ Level VIL

‘1’ Level VIH

—

0.3 x VDD

—

0.3 x VDD

—

0.3 x VDD V

0.7 x VDD

—

0.7 x VDD

—

0.7 x VDD

—

Serial Port Input Current

(Vin = 0 to VDD)

Iin

—

± 0.1

—

± 0.1

—

± 1.0

µA

Oscillator Input Voltage

‘0’ Level VIL

—

0.25 x VDD

—

0.25 x VDD

—

0.2 x VDD V

‘1’ Level VIH 0.75 x VDD

—

0.75 x VDD

—

0.8 x VDD

—

Oscillator Input Current VOSC = 0

IIL

VOSC = VDD

IIH

—

100

30

80

10

—

– 100

– 30

– 80

– 10

—

µA

—

Segment Driver Voltage Below VDD

∆VOH

V

Iout = 50 mA

—

1.1

—

1.0

—

1.1

Iout = 10 mA

—

0.8

—

0.75

—

0.8

Segment Driver Off Leakage Vout = 0 IOZ

—

100

—

50

—

100

µA

Digit Drivers

Source (On)

Sink (Off)

mA

Vout = 0.8 V IOH

6

—

5.5

—

4

—

Vout = 0.5 V IOL

– 0.2

—

– 0.2

—

– 0.1

—

Supply Current

Vin = 0, Iout = 0,

COSC = 0.015 µF

IDD

—

1

—

1

—

1

mA

Maximum Power Dissipation

PD

—

500

—

500

—

500

mW

SWITCHING CHARACTERISTICS (VDD = 5 V ± 10%, TA = 0 to 70°C)

Characteristic

Figure

No.

Symbol

Min

Clock High Time

2

tCH

2

Clock Low Time

Clock Rise Time

Clock Fall Time

2

tCL

2

2

tCR

—

2

tCF

—

Enable Lead Time

Enable Lag Time

2

tE LEAD

200

2

tE LAG

200

Data Set–Up Time

Data Hold Time

Scanner Frequency*

2

tD SUP

200

2

tD HOLD

1

4

1/tSCAN

50

OSC/Digit Lead Time

OSC/Segment Lead Time

Digit Overlap

* Scanner Capacitance = 0.022 µF.

4

tOD

—

4

tOS

—

4

tOV

—

Max

Unit

—

µs

—

µs

2

µs

2

µs

—

ns

—

ns

—

ns

—

µs

300

Hz

10

µs

10

µs

5

µs

MC14499

2

MOTOROLA

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