at42qt1481 ATMEL Corporation, at42qt1481 Datasheet - Page 59

• Manufacturer Part Number: at42qt1481
• Description: 48-key Qmatrix Ic
• Manufacturer: ATMEL Corporation

6. Specifications
6.1
6.2
6.3
Vdd = 5.0V, Cs = 4.7 nF, Freq = 16 MHz, Ta = recommended range, unless otherwise noted
9621B–AT42–06/11
Vdd
Max continuous pin current, any control or drive pin
Short circuit duration to ground, any pin
Short circuit duration to Vdd, any pin
Voltage forced onto any pin
Frequency of operation
EEPROM setups maximum writes
CAUTION: Stresses beyond those listed may cause permanent damage to the device. This is a stress rating only and
functional operation of the device at these or other conditions beyond those indicated in the operational sections of this
specification is not implied. Exposure to absolute maximum specification conditions for extended periods may affect
device reliability.
Operating temp
Storage temp
Vdd
Supply ripple + noise
Cx transverse load capacitance per key
Fosc oscillator frequency
Parameter
Idds
Rrst
Iddr
Voh
Vhl
Vol
Rp
Vil
Vr
Ar
Iil
Absolute Maximum Specifications
Recommended Operating Conditions
DC Specifications
Supply current, running
Supply current, sleeping
Vdd internal reset voltage
Low input logic level
High input logic level
Low output voltage
High output voltage
Input leakage current
Acquisition resolution
Internal pull-up resistors
Internal RST pull-up resistor
Description
Vdd-0.7
Min
2.2
20
30
–
–
–
–
–
–
–
Typ
20
–
–
–
–
–
–
4
–
9
–
Max
0.8
0.6
25
±1
11
50
60
-40
-55
+4.75V to 5.25V
20 mV p-p max
0 to 20 pF
16 MHz ±2%
–
–
–
–
-0.5 to +5.5V
±10 mA
infinite
infinite
-0.6V to (Vdd + 0.6) Volts
17 MHz
100,000 write cycles
o
o
C to +105
C to +125
Units
bits
mA
k
k
µA
µA
V
V
V
V
V
o
o
C
C
4mA sink
1 mA source
DRDY, SS, TX, STATUS pins
AT42QT1481
Notes
59