The following specification apply for V+ = +3.0 V

T

specification revision 0.98. Please refer to that speciation for further details.

Symbol

Parameter

Conditions

Typical

(Note 7)

Limits

(Note 8)

Units

(Limits)

t

RST_MAX

Maximum drive of SWD by an LM32, after the

power supply is raised above 3V

500

ms (max)

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is

functional, but do not guarantee performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed

specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test

conditions.

Note 2: All voltages are measured with respect to GND, unless otherwise noted.

components and/or ESD protection circuitry are shown below for the LM32’s pins. The nominal breakdown voltage of the zener is 6.5 V. SNP stands for snap-back

device.

PIN

#

Pin

Name

Pin

Circuit

All Input Structure Circuits

1NC

A

Circuit A

Circuit C

Circuit B

Circuit D

2

GND

B

3

V+/

3.3V SB

B

4

SWD

A

5

ADD

A

6

NC

none

7

NC

none

8

D1-

C

9

D1+

D

10

D2-

C

11

D2+

D

12

NC

none

13

NC

none

14

NC

A

Note 4: Thermal resistance junction-to-ambient in still air when attached to a printed circuit board with 1 oz. foil is 148 ˚C/W.

Note 5: Human body model, 100 pF discharged through a 1.5 k

Ω resistor. Machine model, 200 pF discharged directly into each pin.

Note 6: Reflow temperature profiles are different for lead-free and non lead-free packages.

Note 8: Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).

Note 9: The supply current will not increase substantially with a SensorPath transaction.

Note 10: Local temperature accuracy does not include the effects of self-heating. The rise in temperature due to self-heating is the product of the internal power

dissipation of the LM32 and the thermal resistance. See (Note 4) for the thermal resistance to be used in the self-heating calculation.

Note 11: The accuracy of the LM32CIMT is guaranteed when using the thermal diode of an Intel 90 nm Pentium 4 processor or any thermal diode with a non-ideality

factor of 1.011 and series resistance of 3.33

Ω. When using a MMBT3904 type transistor as a thermal diode the error band will be typically shifted by -4.5 ˚C.

Note 12: This specification is provided only to indicate how often temperature data are updated.

Note 15: The rise and fall times are not tested but guaranteed by design.

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