IN472-3 参数 Datasheet PDF下载

IN472-3

DC ELECTRICAL CHARACTERISTICS

(GND=0 V, V

DD

=3.0 V to 5.5 V, T

A

= 0°C to 70°C

(depends on display characteristics)

Guaranteed Limit

Symbol

V

DD

I

DD

V

IL

V

IH

V

IL

V

IH

V

OL

V

OH

V

BPA,BPB,BPC

ON

V

BPA,BPB,BPC

OFF

V

BPA,BPB,BPC

ON

V

BPA,BPB,BPC

OFF

V

SEG

ON

V

SEG

OFF

V

SEG

ON

V

SEG

OFF

Internal Oscillator Frequency

Frame Time (Int. Osc.

÷

192)

1/T

SCAN

Scan Frequency

SK Clock Frequency

SK Width

t

SETUP

t

HOLD

t

SETUP

t

HOLD

Output Loading Capacitance

Note 2:

∆V

- 0.05V

DD

.

DI Data Stup

DI Data Hold

CS

Segment Outputs (SA

1

∼

SA

4

)

Segment Outputs (SA

1

∼

SA

4

)

Backplane Outputs (BPA,BPB,BPC)

During

BP - Time

During

BP + Time

During

BP - Time

0

2/3V

DD

-∆V

0

2/3V

DD

-∆V

V

DD

-∆V

1/3V

DD

-∆V

15

2.4

39

4

1.7

1.0

100

1.0

1.0

100

pF

∆V

2/3V

DD

+∆V

∆V

2/3V

DD

+∆V

V

DD

1/3V

DD

+∆V

80

12.8

208

250

kHz

ms

Hz

kHz

µs

µs

ns

µs

V

V

Backplane Outputs (BPA,BPB,BPC)

During

BP + Time

V

DD

-∆V

1/3V

DD

-∆V

V

DD

1/3V

DD

+∆V

V

Output Levels, BPC (as Osc. Out)

V

DD

-0.4

BPA (as Osc. in)

V

DD

-0.6

Parameter

Power Supply Voltage

Power Supply Current (Note 1)

Input Levels DI, SK, CS

0.7 V

DD

V

DD

=5.5 V

Test

Conditions

Min

3.0

Max

5.5

250

0.8

V

DD

0.6

V

DD

0.4

V

DD

V

V

V

Unit

V

µA

V

Note 1: Power supply current as measured in stand-alone mode with all outputs open and all inputs at V

DD

.

2