MAX7325_12 Datasheet, PDF (2/17 Pages) Maxim Integrated Products – I2C Port Expander with 8 Push-Pull and 8 Open-Drain I/Os

MAX7325
I²C Port Expander with 8 Push-Pull
and 8 Open-Drain I/Os
ABSOLUTE MAXIMUM RATINGS
(All voltages referenced to GND.)
Supply Voltage V+....................................................-0.3V to +6V
SCL, SDA, AD0, AD2, RST, INT, P0–P7 ...................-0.3V to +6V
O8–O15 ........................................................-0.3V to (V+ + 0.3V)
O8–O15 Output Current ...................................................±25mA
P0–P7 Sink Current ......................................................................25mA
SDA Sink Current ........................................................................ 10mA
INT Sink Current..................................................................10mA
Total V+ Current..................................................................50mA
Total GND Current ...........................................................100mA
Continuous Power Dissipation (T_A = +70°C)
24-Pin QSOP (derate 9.5mW/°C over +70°C)...........761.9mW
24-Pin TQFN (derate 20.8mW/°C over+70°C) ........1666.7mW
Operating Temperature Range .........................-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
DC ELECTRICAL CHARACTERISTICS
(V+ = +1.71V to +5.5V, T_A = -40°C to +125°C, unless otherwise noted. Typical values are at V+ = +3.3V, T_A = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Operating Supply Voltage
V+ T_A = -40°C to +125°C
1.71
5.50
V
Power-On-Reset Voltage
V_POR V+ falling
1.6
V
Standby Current
(Interface Idle)
I_STB
SCL and SDA and other T_A = -40°C to
digital inputs at V+
+125°C
0.6
1.9
µA
Supply Current
(Interface Running)
I+
f_SCL = 400kHz; other T_A = -40°C to
digital inputs at V+
+125°C
23
55
µA
Input High-Voltage
SDA, SCL, AD0, AD2, RST, P0–P7
V+ < 1.8V
V_IH
V+ ≥ 1.8V
0.8 x V+
V
0.7 x V+
Input Low-Voltage
SDA, SCL, AD0, AD2, RST, P0–P7
V+ < 1.8V
V_IL
V+ ≥ 1.8V
0.2 x V+
V
0.3 x V+
Input Leakage Current
SDA, SCL, AD0, AD2, RST, P0–P7
I_IH, I_IL
SDA, SCL, AD0, AD2, RST, P0–P7 at V+ or
GND, internal pullup disabled
-0.2
+0.2
µA
Input Capacitance
SDA, SCL, AD0, AD2, RST, P0–P7
10
pF
Output Low Voltage
O8–O15, P0–P7
Output High Voltage
O8–O15
Output Low-Voltage SDA
Output Low-Voltage INT
Port Input Pullup Resistor
V_OL
V_OH
V_OLSDA
V_OLINT
R_PU
V+ = +1.71V, I_SINK = 5mA (QSOP)
V+ = +1.71V, I_SINK = 5mA (TQFN)
V+ = +2.5V, I_SINK = 10mA (QSOP)
V+ = +2.5V, I_SINK = 10mA (TQFN)
V+ = +3.3V, I_SINK = 15mA (QSOP)
V+ = +3.3V, I_SINK = 15mA (TQFN)
V+ = +5V, I_SINK = 20mA (QSOP)
V+ = +5V, I_SINK = 20mA (TQFN)
V+ = +1.71V, I_SOURCE = 2mA
V+ = +2.5V, I_SOURCE = 5mA
V+ = +3.3V, I_SOURCE = 5mA
V+ = +5V, I_SOURCE = 10mA
I_SINK = 6mA
I_SINK = 5mA
90
180
90
230
110 210
110 260
mV
130 230
130 280
140 250
140 300
V+ - 250 V+ - 30
V+ - 360 V+ - 70
mV
V+ - 260 V+ - 100
V+ - 360 V+ - 120
250
mV
130 250
mV
25
40
55
kΩ
2
Maxim Integrated