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MAX6955 Datasheet(Hoja de datos) 3 Page - Maxim Integrated Products

No. de Pieza. MAX6955
Descripción  2-Wire Interfaced, 2.7V to 5.5V LED Display Driver with I/O Expander and Key Scan
Descarga  39 Pages
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Fabricante  MAXIM [Maxim Integrated Products]
Página de inicio  http://www.maxim-ic.com
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 3 page
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2-Wire Interfaced, 2.7V to 5.5V LED Display
Driver with I/O Expander and Key Scan
_______________________________________________________________________________________
3
DC ELECTRICAL CHARACTERISTICS (continued)
(Typical Operating Circuit, V+ = 2.7V to 5.5V, TA = TMIN to TMAX, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
VLED = 2.2V,
V+ = 3.3V
Segment Drive Source Current
ISEG
VLED = 2.2V,
V+ = 2.7V
TA = +25°C
-32
-40
-48
mA
Segment Current Slew Rate
∆ISEG/∆t
TA = +25°C, V+ = 3.3V
11
mA/µs
Segment Drive Current Matching
∆ISEG
TA = +25°C, V+ = 3.3V
5
%
LOGIC INPUTS AND OUTPUTS
Input High Voltage
SDA, SCL, AD0, AD1
VIH
0.7 x
V+
V
Input Low Voltage
SDA, SCL, AD0, AD1
VIL
0.3 x
V+
V
Input Leakage Current
SDA, SCL, AD0, AD1, OSC, P0,
P1, P2, P3, P4
IIH, IIL
-1
+1
µA
SDA Output Low Voltage
VOLSDA
ISINK = 6mA
0.4
V
Port Logic-High Input Voltage
P0, P1, P2, P3, P4
VIHP
0.7 x
V+
V
Port Logic-Low Input Voltage
P0, P1, P2, P3, P4
VILP
0.3 x
V+
V
Port Hysteresis Voltage
P0, P1, P2, P3, P4
∆VIP
0.03 x
V+
V
Port Input Pullup Current from V+
IIPU
P0 to P3 configured as key-scan inputs,
V+ = 3.3V
75
µA
Port Output Low Voltage
VOLP
ISINK = 8mA
0.3
0.5
V
Blink Output Low Voltage
VOLBK
ISINK = 0.6mA
0.1
0.3
V
OSC_OUT Output High Voltage
VOHOSC
ISOURCE = 1.6mA
V+ -
0.4
V
OSC_OUT Output Low Voltage
VOLOSC
ISINK = 1.6mA
0.4
V




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