MAX7314 Ver la hoja de datos (PDF) - Maxim Integrated
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componentes Descripción
Fabricante
MAX7314
Maxim Integrated
MAX7314 Datasheet PDF : 25 Pages
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18-Port GPIO 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 Set-Up 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
9
V+ = 3.6V
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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