Rainbow-electronics MAX7313 Uživatelský manuál stáhnout pdf (Strana 4)

MAX7313

16-Port I/O Expander with LED Intensity

Control and Interrupt

4 _______________________________________________________________________________________

TIMING CHARACTERISTICS (continued)

(Typical Operating Circuit, V+ = 2V to 3.6V, T

= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at V+ = 3.3V, T

= +25°C.)

(Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Interrupt Valid t

Figure 10 6.5 µs

Interrupt Reset t

Figure 10 1 µs

Output Data Valid t

Figure 10 5 µs

Input Data Step Time t

Figure 10 100 ns

Input Data Hold Time t

Figure 10 1 µs

Note 1: All parameters tested at T

= +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 V

of the SCL signal) to bridge

the undefined region of SCL’s falling edge.

Note 3: Guaranteed by design.

Note 4: C

= total capacitance of one bus line in pF. t

and t

measured between 0.3 x V

and 0.7 x V

Note 5: I

SINK

≤ 6mA. C

= total capacitance of one bus line in pF. t

and t

measured between 0.3 x V

and 0.7 x V

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

STANDBY CURRENT vs. TEMPERATURE

MAX7313 toc01

TEMPERATURE (°C)

STANDBY CURRENT (µA)

1109565 80-10 5 20 35 50-25

-40 125

V+ = 3.6V

PWM ENABLED

V+ = 2.7V

PWM ENABLED

V+ = 2V

PWM DISABLED

V+ = 2.7V

PWM DISABLED

V+ = 3.6V

PWM

DISABLED

V+ = 2V

PWM ENABLED

SUPPLY CURRENT vs. TEMPERATURE

(PWM DISABLED; f

SCL

= 400kHz)

MAX7313 toc02

TEMPERATURE (°C)

SUPPLY CURRENT (µA)

1109565 80-10 5 20 35 50-25

-40 125

V+ = 3.6V

V+ = 2.7V

V+ = 2V

SUPPLY CURRENT vs. TEMPERATURE

(PWM ENABLED; f

SCL

= 400kHz)

MAX7313 toc03

TEMPERATURE (°C)

SUPPLY CURRENT (µA)

1109565 80-10 5 20 35 50-25-40 125

V+ = 3.6V

V+ = 2.7V

V+ = 2V

__________________________________________Typical Operating Characteristics

= +25°C, unless otherwise noted.)

1 2 3 4 5 6 7 8 9 ... 26 27

Control and Interrupt 1

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