PIC18F4539T-E/ML【PDF 181/322 页】IC PIC MCU FLASH 12KX16 44QFN

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Sheet目录3881

177页 178页 179页 180页 [181页]182页 183页 184页 185页

2002 Microchip Technology Inc.

Preliminary

DS30485A-page 259

PIC18FXX39

23.0 ELECTRICAL CHARACTERISTICS

Absolute Maximum Ratings ()

Ambient temperature under bias.............................................................................................................-55°C to +125°C

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

Voltage on any pin with respect to VSS (except VDD, MCLR, and RA4) ......................................... -0.3V to (VDD + 0.3V)

Voltage on VDD with respect to VSS ......................................................................................................... -0.3V to +7.5V

Voltage on MCLR with respect to VSS (Note 2) ......................................................................................... 0V to +13.25V

Voltage on RA4 with respect to Vss ............................................................................................................... 0V to +8.5V

Total power dissipation (Note 1) ...............................................................................................................................1.0W

Maximum current out of VSS pin ...........................................................................................................................300 mA

Maximum current into VDD pin ..............................................................................................................................250 mA

Input clamp current, IIK (VI < 0 or VI > VDD)

...................................................................................................................... ±20 mA

Output clamp current, IOK (VO < 0 or VO > VDD)

.............................................................................................................. ±20 mA

Maximum output current sunk by any I/O pin..........................................................................................................25 mA

Maximum output current sourced by any I/O pin ....................................................................................................25 mA

Maximum current sunk by PORTA, PORTB, and PORTE (Note 3) (combined) ...................................................200 mA

Maximum current sourced by PORTA, PORTB, and PORTE (Note 3) (combined)..............................................200 mA

Maximum current sunk by PORTC and PORTD (Note 3) (combined)..................................................................200 mA

Maximum current sourced by PORTC and PORTD (Note 3) (combined).............................................................200 mA

Note 1: Power dissipation is calculated as follows:

Pdis = VDD x {IDD -

∑ IOH} + ∑ {(VDD-VOH) x IOH} + ∑(VOl x IOL)

2: Voltage spikes below VSS at the MCLR/VPP pin, inducing currents greater than 80 mA, may cause latchup.

Thus, a series resistor of 50-100

should be used when applying a “low” level to the MCLR/VPP pin, rather

than pulling this pin directly to VSS.

3: PORTD and PORTE not available on the PIC18F2X39 devices.

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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