Absolute maximum ratings, Electrical characteristics – Rainbow Electronics MAX7359 User Manual
Page 2
MAX7359
2-Wire Interfaced Low-EMI
Key Switch Controller/GPO
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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.
(All voltages referenced to GND.)
V
CC
..........................................................................-0.3V to +4V
COL2/PORT2–COL7/PORT7 ....................................-0.3V to +4V
SDA, SCL, AD0,
INT .................................................-0.3V to +6V
All Other Pins ..............................................-0.3V to (V
CC
+ 0.3V)
DC Current on COL2/PORT2–COL7/PORT7 ......................25mA
GND Current .......................................................................80mA
Continuous Power Dissipation (T
A
= +70°C)
24-Pin TQFN (derate 15.4mW/°C above +70°C)..........1229mW
Operating Temperature Range (T
MIN
to T
MAX
) .....-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
ELECTRICAL CHARACTERISTICS
(V
CC
= 1.62V to 3.6V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= 2.5V, T
A
= +25°C.) (Notes 1, 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Operating Supply Voltage
V
CC
1.62
3.60
V
All key switches open, oscillator running,
COL2–COL7 configured as key switches
25
60
Operating Supply Current
I
CC
N keys pressed
(25 +
20 x N)
µA
Sleep-Mode Supply Current
I
SL
0.6
5
µA
POR
1.0
1.6
V
POR Hysteresis
PORHYST
V
CC
rising
42
mV
Key-Switch Source Current
I
KEY
20
35
µA
Key-Switch Source Voltage
V
KEY
Operating mode
0.42
0.55
V
Key-Switch Resistance
R
KEY
(Note 3)
5
k
Ω
Startup Time from Shutdown
t
START
2000
2400
µs
Output Low Voltage
COL2/PORT2 to COL7/PORT7
V
OLPORT
I
SINK
= 10mA
0.2
V
INT Output
V
OLINT
I
SINK
= 10mA
0.5
V
Oscillator Frequency
F
OSC
64
kHz
SERIAL-INTERFACE SPECIFICATIONS
Serial Bus Timeout
t
OUT
With bus timeout enabled
10
40
ms
Input High Voltage
SDA, SCL, AD0
V
IH
0.7 x
V
CC
V
Input Low Voltage
SDA, SCL, AD0
V
IL
0.3 x
V
CC
V
Output Low Voltage SDA
V
OLPORT
I
SINK
= 10mA
0.4
V
Input Leakage Current
V
CC
= 0 to 6V
-1
+1
µA