HCS473-SLROM datasheet(51/68 Pages) MICROCHIP

51 / 68 page

 2002 Microchip Technology Inc.

Preliminary

DS40035C-page 49

HCS473

7.0

ELECTRICAL CHARACTERISTICS

7.1

Absolute Maximum Ratings

†

Ambient temperature under bias.......................................................................................................... -40°C to +125°C

Storage temperature ........................................................................................................................... -65°C to +150°C

Voltage on V

DD w/respect to VSS .......................................................................................................... -0.3V to +7.5V

Voltage on LED w/respect to V

SS .............................................................................................................-0.3V to +11V

Voltage on all other pins w/respect to V

SS .......................................................................................-0.3V to VDD+0.3V

Total power dissipation(1) .................................................................................................................................. 500 mW

Maximum current out of V

SS pin ........................................................................................................................ 100 mA

Maximum current into V

DD pin ........................................................................................................................... 100 mA

Input clamp current, I

IK (VI < 0 or VI > VDD) ....................................................................................................... ±20 mA

Output clamp current, I

OK (Vo < 0 or Vo >V

DD).................................................................................................. ±20 mA

Maximum output current sunk by any Output pin................................................................................................. 25 mA

Maximum output current sourced by any Output pin ........................................................................................... 25 mA

Note 1: Power dissipation is calculated as follows: P

DIS=VDD x {IDD - Â IOH} + Â {(VDD-VOH) x IOH} + Â(VOl x IOL).

† NOTICE: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the

device. This is a stress rating only and functional operation of the device at those or any other conditions above those

indicated in the operation listings of this specification is not implied. Exposure to maximum rating conditions for

extended periods may affect device reliability.

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