MAX7315 Ver la hoja de datos (PDF) - Maxim Integrated

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MAX7315

8-Port I/O Expander with LED Intensity Control, Interrupt, and Hot-Insertion Protection

Maxim Integrated 

8-Port I/O Expander with LED Intensity

Control, Interrupt, and Hot-Insertion Protection

TIMING CHARACTERISTICS (continued)

(Typical Operating Circuit, V+ = 2V to 3.6V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = 3.3V, TA = +25°C.)

(Note 1)

PARAMETER

Interrupt Valid

Interrupt Reset

Output Data Valid

Input Data Setup Time

Input Data Hold Time

SYMBOL

CONDITIONS

tIV Figure 10

tIR Figure 10

tDV Figure 10

tDS Figure 10

tDH Figure 10

MIN TYP MAX UNITS

6.5 µs

1

µs

5

µs

100

ns

1

µs

Note 1: All parameters tested at TA = +25°C. Specifications over temperature are guaranteed by design.

Note 2: A master device must provide a hold time of at least 300ns for the SDA signal (referred to VIL of the SCL signal) to bridge

the undefined region of SCL’s falling edge.

Note 3: Guaranteed by design.

Note 4: Cb = total capacitance of one bus line in pF. tR and tF measured between 0.3 x VDD and 0.7 x VDD.

Note 5: ISINK ≤ 6mA. Cb = total capacitance of one bus line in pF. tR and tF measured between 0.3 x VDD and 0.7 x VDD.

Note 6: Input filters on the SDA and SCL inputs suppress noise spikes less than 50ns.

__________________________________________Typical Operating Characteristics

(TA = +25°C, unless otherwise noted.)

STANDBY CURRENT vs. TEMPERATURE

10

V+ = 3.6V

9

PWM ENABLED

8

7

6

5

V+ = 2V

4

V+ = 2.7V

PWM ENABLED

PWM ENABLED

V+ = 3.6V

3

V+ = 2V

V+ = 2.7V

PWM

2 PWM DISABLED PWM DISABLED DISABLED

1

0

-40 -25 -10 5 20 35 50 65 80 95 110 125

TEMPERATURE (°C)

SUPPLY CURRENT vs. TEMPERATURE

(PWM DISABLED; fSCL = 400kHz)

70

60

50

V+ = 3.6V

40

V+ = 2.7V

30

20

V+ = 2V

10

0

-40 -25 -10 5 20 35 50 65 80 95 110 125

TEMPERATURE (°C)

SUPPLY CURRENT vs. TEMPERATURE

(PWM ENABLED; fSCL = 400kHz)

70

65

60

55

V+ = 3.6V

50

45

40

V+ = 2.7V

35

30

25

V+ = 2V

20

15

10

5

0

-40 -25 -10 5 20 35 50 65 80 95 110 125

TEMPERATURE (°C)

4 _______________________________________________________________________________________

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