PIC17CR42 查看數據表（PDF） - Microchip Technology

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PIC17CR42

High-Performance 8-Bit CMOS EPROM/ROM Microcontroller

Microchip Technology 

PIC17C4X

Applicable Devices 42 R42 42A 43 R43 44

FIGURE 17-1: PARAMETER MEASUREMENT INFORMATION

All timings are measure between high and low measurement points as indicated in the figures below.

INPUT LEVEL CONDITIONS

PORTC, D and E pins

All other input pins

Data in valid

Data in invalid

Data in valid

Data in invalid

VIH = 2.4V

VIL = 0.4V

VIH = 0.9VDD

VIL = 0.1VDD

OUTPUT LEVEL CONDITIONS

VOH = 0.7VDD

VDD/2

VOL = 0.3VDD

Data out valid

Data out invalid

0.1VDD

Rise Time

0.25V

0.25V

0.25V

0.25V

Output

Output driven

hi-impedance

0.9VDD

Fall Time

LOAD CONDITIONS

Load Condition 1

VDD/2

RL

Pin

CL

VSS

Load Condition 2

Pin

CL

VSS

RL = 464

CL ≤ 50 pF

DS30412C-page 154

© 1996 Microchip Technology Inc.

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