qt60161b Quantum Research Group, qt60161b Datasheet - Page 31

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qt60161b

Manufacturer Part Number
qt60161b
Description
16 Key Qmatrix Keypanel Sensor Ic
Manufacturer
Quantum Research Group
Datasheet

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6 Electrical Specifications
6.1 Absolute Maximum Specifications
Operating temp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40
Storage temp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55
V
Max continuous pin current, any control or drive pin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±10mA
Short circuit duration to ground, any pin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . infinite
Short circuit duration to V
Voltage forced onto any pin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.6V to (Vdd + 0.6) Volts
Frequency of operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16MHz
Eeprom maximum writes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100,000 write cycles
6.2 Recommended operating conditions
V
Supply ripple+noise. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mV p-p max
Cx transverse load capacitance per key. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 20pF
Fosc oscillator frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12MHz +/-2%
6.3 DC Specifications
Vdd = 5.0V, Cs = 4.7nF, Freq = 12MHz, Ta = recommended range, unless otherwise noted
6.4 Protocol Timing
lQ
DD
DD
Parameter
Parameter
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 to +5.5V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +4.75 to 5.25V
T
T
I
I
V
V
V
T
DDR
DDS
V
A
R
DR
DR
I
OH
PR
HL
OL
IL
IL
R
P
2
3
Supply current, running
Supply current, sleep
Low input logic level
High input logic level
Low output voltage
High output voltage
Input leakage current
Acquisition resolution
Pullup resistors
Parallel port response delay
Tdr delay from response
Multi-byte return spacing
Description
Description
DD
, any pin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . infinite
Vdd-0.7
Min
Min
2.2
35
15
©Quantum Research Group Ltd.
1
Typ
Typ
20
10
31
1,000
2,000
Max
Max
120
100
0.8
0.6
16
25
±1
kohms
Units
Units
bits
mA
µA
µA
µS
µS
µS
V
V
V
V
www.qprox.com QT60161B / R1.03
Not including external components
Not including external components
4mA sink
1mA source
Drdy, SS’ pins
Notes
Notes
O
O
C to +105
C to +125
O
O
C
C

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