MAX7300_14 Datasheet, PDF (3/20 Pages) Maxim Integrated Products – 2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or 28-Port I/O Expander

MAX7300
2-Wire-Interfaced, 2.5V to 5.5V,
20-Port or 28-Port I/O Expander
Electrical Characteristics (continued)
(Typical Operating Circuit, V_V+ = 2.5V to 5.5V, T_A = T_MIN to T_MAX, unless otherwise noted.) (Note 1)
PARAMETER
Output High Voltage
Port Sink Current
Output Short-Circuit Current
Input High-Voltage SDA, SCL,
AD0, AD1
Input Low-Voltage SDA, SCL,
AD0, AD1
Input Leakage Current SDA, SCL
Input Capacitance
Output Low-Voltage SDA
SYMBOL
CONDITIONS
V_OH
GPIO outputs, I_SOURCE = 2mA,
T_A = -40°C to +85°C
GPIO outputs, I_SOURCE = 1mA,
T_A = T_MIN to T_MAX (Note 2)
I_OL
V_PORT = 0.6V
I_OLSC Port configured output low, shorted to V+
V_IH
V_IL
I_IH, I_IL
V_OL
(Note 2)
I_SINK = 6mA
MIN TYP MAX UNITS
V+ -
0.7
V
V+ -
0.7
2
10
18
mA
2.75
11
20
mA
0.7 x
V+
V
0.3 x
V+
V
-50
+50
nA
10
pF
0.4
V
Timing Characteristics (Figure 2)
(V_V+ = 2.5V to 5.5V, T_A = T_MIN to T_MAX, unless otherwise noted.) (Note 1)
PARAMETER
Serial Clock Frequency
Bus Free Time Between a STOP
and a START Condition
Hold Time (Repeated) START
Condition
Repeated START Condition
Setup Time
STOP Condition Setup Time
Data Hold Time
Data Setup Time
SCL Clock Low Period
SCL Clock High Period
Rise Time of Both SDA and SCL
Signals, Receiving
Fall Time of Both SDA and SCL
Signals, Receiving
SYMBOL
f_SCL
t_BUF
t_{HD, STA}
t_{SU, STA}
t_{SU, STO}
t_{HD, DAT}
t_{SU, DAT}
t_LOW
t_HIGH
(Note 3)
t_R
(Notes 2, 4)
t_F
(Notes 2, 4)
CONDITIONS
Fall Time of SDA Transmitting
t_F,TX (Notes 2, 5)
Pulse Width of Spike Suppressed
Capacitive Load for Each Bus
Line
t_SP (Notes 2, 6)
C_b
(Note 2)
MIN TYP MAX UNITS
400
kHz
1.3
µs
0.6
µs
0.6
µs
0.6
µs
15
900
ns
100
ns
1.3
µs
0.7
µs
20 +
0.1C_b
300
ns
20 +
0.1C_b
300
ns
20 +
0.1C_b
250
ns
0
50
ns
400
pF
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