A6277SLW(2000) データシートの表示（PDF） - Allegro MicroSystems

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A6277SLW
(Rev.:2000)

8-BIT SERIAL-INPUT, CONSTANT CURRENT LATCHED LED DRIVER

Allegro MicroSystems 

6275

8-BIT SERIAL-INPUT,

CONSTANT-CURRENT

LATCHED LED DRIVER

SWITCHING CHARACTERISTICS at TA = 25°C, VDD = VIH = 5 V, VCE = 0.4 V, VIL = 0 V,

REXT = 470 Ω, IO = 40 mA, VL = 3 V, RL = 65 Ω, CL = 10.5 pF.

Characteristic

Propagation Delay Time

Propagation Delay Time

Output Fall Time

Output Rise Time

Symbol

tpHL

tpLH

tf

tr

Test Conditions

CLOCK-OUTn

LATCH-OUTn

ENABLE-OUTn

CLOCK-SERIAL DATA OUT

CLOCK-OUTn

LATCH-OUTn

ENABLE-OUTn

CLOCK-SERIAL DATA OUT

90% to 10% voltage

10% to 90% voltage

Limits

Min. Typ. Max.

Unit

– 350 1000

ns

– 350 1000

ns

– 350 1000

ns

–

80 110

ns

– 300 1000

ns

– 300 1000

ns

– 300 1000

ns

–

80 110

ns

150 350 1000

ns

150 300 600

ns

RECOMMENDED OPERATING CONDITIONS

Characteristic

Supply Voltage

Output Voltage

Output Current

Logic Input Voltage

Clock Frequency

Symbol

VDD

VO

IO

IOH

IOL

VIH

VIL

fCK

Conditions

Continuous, any one output

SERIAL DATA OUT

SERIAL DATA OUT

Cascade operation

Min. Typ. Max.

4.5 5.0 5.5

-

1.0 4.0

-

-

90

-

- -1.0

-

-

1.0

0.7VDD

-0.3

-

- VDD + 0.3

- 0.3VDD

-

10

Unit

V

V

mA

mA

mA

V

V

MHz

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