LMC6953CM/NOPB National Semiconductor, LMC6953CM/NOPB Datasheet - Page 4

• Manufacturer Part Number: LMC6953CM/NOPB
• Description: IC POWER SUP PCI LOCAL BUS 8SOIC
• Manufacturer: National Semiconductor
• Type: Multi-Voltage Supervisorr

Specifications of LMC6953CM/NOPB

• Number Of Voltages Monitored: 2
• Output: Open Drain or Open Collector
• Reset: Active Low
• Reset Timeout: 100 ms Minimum
• Voltage - Threshold: 3.3V, 5V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: *LMC6953CM; *LMC6953CM/NOPB; LMC6953CM

AC Electrical Characteristics
(Continued)
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
intended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical Characteristics.
Note 2: Human body model, 1.5 kΩ in series with 100 pF. Machine model. 200Ω in series with 100 pF.
Note 3: Supply current measured at pins 1, 2, and 3. The 4.7 kΩ pull-up resistor on pin 7 is not tied to V
in this measurement.
DD
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
overdrive 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
01284603
Note: t
, t
and t
are not to scale.
RESET
D
PF
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