Rainbow Electronics AT42QT1040 - Manual (Page 13)

13
9524A–AT42–03/09
AT42QT1040
5. Specifications
5.1 Absolute Maximum Specifications
5.2 Recommended Operating Conditions
5.3 DC Specifications
Vdd -0.5 to +6.0V
Max continuous pin current, any control or drive pin ±10 mA
Voltage forced onto any pin -0.5V to (Vdd + 0.5) Volts
CAUTION: Stresses beyond those listed under Absolute Maximum Specifications 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 temperature -40°C to +85°C
Storage temperature -55°C to +125°C
Vdd 1.8V to 5.5V
Supply ripple + noise ±20 mV maximum
Cx capacitance per key 2 to 20 pF
Vdd = 5.0V, Cs = 4.7 nF, Ta = recommended range, unless otherwise noted
Parameter Description Min Typ Max Units Notes
Vil Low input logic level 0.5V – 0.3V V
Vih High input logic level 0.6 Vdd Vdd Vdd + 0.5V V
Vol Low output voltage 0 – 0.7 V 10 mA sink current
Voh High output voltage 0.8 Vdd – Vdd V 10 mA source current
Iil Input leakage current – <0.05 1 µA
Rrst Internal RST pull-up resistor 20 – 50 k
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