Rainbow Electronics MAX11042 - Manual (Page 2)

MAX11041/MAX11042
Wired Remote Controllers
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.
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
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 Ω, 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 MAX11042 6
Keys
Maximum Switch Resistance (Note 1) 100 Ω
Maximum Switch Bounce Time (Note 1) 13 ms
External Resistor Tolerance (Note 1) ±1 %
SWITCH DEBOUNCE
Debounce Analog Time Constant
C SENSE = 10nF, external resistor from
FORCE to SENSE is 10k Ω (R
SENSE )
0.4 ms
Chatter Rejection Pulses shorter than this are ignored 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 (Note 2) 18 ms
Jack Removal Debounce Time (Note 2) 18 ms
DURATION COUNTER
Duration-Counter Resolution One tick 32 ms
Duration-Counter Range MSB is overflow bit 0 127 Counts
Duration-Counter Accuracy ±20 %
DIGITAL INPUTS (SDA, SCL, SHDN, A0, A1)
Input High Voltage V IH
0.7 x
V DD
V
Input Low Voltage V IL
0.3 x
V DD
V
Input Leakage Current I IH , I IL -10 +10 µA
Input Hysteresis 9 %V DD
Input Capacitance 10 pF