MAX7301(2003) Ver la hoja de datos (PDF) - Maxim Integrated
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MAX7301 Datasheet PDF : 18 Pages
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4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and
28-Port I/O Expander
ELECTRICAL CHARACTERISTICS (continued)
(Typical Operating Circuit, V+ = 2.5V to 5.5V, TA = TMIN to TMAX, unless otherwise noted.) (Note 1)
PARAMETER
Port Sink Current
Output Short-Circuit Current
Input High-Voltage SCLK, DIN,
CS
Input Low-Voltage SCLK, DIN,
CS
SYMBOL
IOL
IOLSC
VIH
CONDITIONS
VPORT = 0.6V
Port configured output low, shorted to V+
V+ ≤ 3.3V
V+ > 3.3V
VIL
MIN TYP MAX UNITS
2
10
18
mA
2.75
11
20
mA
1.6
V
2
0.6
V
Input Leakage Current SCLK,
DIN, CS
IIH, IIL
-50
+50
nA
Output High-Voltage DOUT
Output Low-Voltage DOUT
VOH
VOL
ISOURCE = 1.6mA
ISINK = 1.6mA
V+ -
V
0.5
0.4
V
TIMING CHARACTERISTICS (Figure 3)
(V+ = 2.5V to 5.5V, TA = TMIN to TMAX, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP
CLK Clock Period
tCP
38.4
CLK Pulse Width High
tCH
19
CLK Pulse Width Low
tCL
19
CS Fall to SCLK Rise Setup Time
tCSS
9.5
CLK Rise to CS Rise Hold Time
tCSH
0
DIN Setup Time
tDS
9.5
DIN Hold Time
tDH
0
Output Data Propagation Delay
tDO
CLOAD = 25pF
Minimum CS Pulse High
tCSW
19
Note 1: All parameters tested at TA = +25°C. Specifications over temperature are guaranteed by design.
Note 2: Guaranteed by design.
MAX
21
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
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