
M
Wired Remote Controllers
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
V
DD
to GND...........................................................-0.3V to +4.0V
INT
to GND.................................................-0.3V to (V
DD
+ 0.3V)
SCL, SDA, A1, A0,
SHDN
to GND.........................-0.3V to +4.0V
FORCE, SENSE to GND.........................................................±6V
Current into Any Pin..........................................................±50mA
Maximum ESD per IEC 61000-4-2
Human Body Model, FORCE, SENSE............................±15kV
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.
FORCE, SENSE Short to GND....................................Continuous
Junction Temperature......................................................+150°C
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
ELECTRICAL CHARACTERISTICS
(V
DD
= +1.6V to 3.6V, C
SENSE
= 10nF, R
SENSE
= 10k
, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
KEY DETECTION CHARACTERISTICS
MAX11041
30
Detectable Keys
Provided the keys meet
the next three
specifications; R
JACK
connected; use
recommended circuit
(Note 1)
(Note 1)
(Note 1)
MAX11042
6
Keys
Maximum Switch Resistance
Maximum Switch Bounce Time
External Resistor Tolerance
SWITCH DEBOUNCE
100
13
±1
ms
%
Debounce Analog Time Constant
C
SENSE
= 10nF, external resistor from
FORCE to SENSE is 10k
(R
SENSE
)
Pulses shorter than this are ignored
0.4
ms
Chatter Rejection
18
ms
Rising Voltage Debounce Time
t
CPW
Time required for a new voltage (due to
keypress) to be detected and stored in
FIFO
18
ms
Falling Voltage Debounce Time
t
LPWS
Time required for detection of key release
and final time duration to be stored in FIFO
18
ms
Jack Insertion Debounce Time
Jack Removal Debounce Time
DURATION COUNTER
Duration-Counter Resolution
Duration-Counter Range
Duration-Counter Accuracy
DIGITAL INPUTS (SDA, SCL,
SHDN
, A0, A1)
(Note 2)
(Note 2)
18
18
ms
ms
One tick
MSB is overflow bit
32
ms
0
127
±20
Counts
%
Input High Voltage
V
IH
0.7 x
V
DD
V
Input Low Voltage
V
IL
0.3 x
V
DD
+10
V
Input Leakage Current
Input Hysteresis
Input Capacitance
I
IH
, I
IL
-10
μA
9
10
%V
DD
pF