LMC6953 datasheet(4/12 Pages) NSC

4 / 12 page

AC Electrical Characteristics (Continued)

Note 3: Supply current measured at pins 1, 2, and 3. The 4.7 k

Ω pull-up resistor on pin 7 is not tied to VDDin this measurement.

Note 4: PCI Specifications Revision 2.1, Section 4.2.1.1 and Section 4.3.2.

Note 5: PCI Specifications Revision 2.1, Section 4.2.2.1 and Section 4.3.2.

Note 6: PCI Specifications Revision 2.1 and Section 4.3.2.

Note 7: PCI Specifications Revision 2.1, Section 4.3.2. The response time is measured individually with ±750 mV of overdrive applied to pin 2 then ±600 mV of over-

drive applied to pin 3 and taking the worst number of the four measurements.

Note 8: PCI Specifications Revision 2.1, Section 4.3.2. The power failure response time is measured with a signal changing from 5V to 3V applied to pin 2 and a

3.3V DC applied to pin 3.

LMC6953 Timing Diagram

DS012846-3

Note: tRESET,tD and tPF are not to scale.

LMC6953 Datasheet(PDF) 4 Page - National Semiconductor (TI)

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