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PIC16LC554 Fiches technique(PDF) 44 Page - Microchip Technology

No de pièce PIC16LC554
Description  EPROM-Based 8-Bit CMOS Microcontroller
PDF  96 Pages
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Fabricant  MICROCHIP [Microchip Technology]
Site Internet  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16LC554 Fiches technique(HTML) 44 Page - Microchip Technology

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PIC16C55X(A)
DS40143B-page 44
Preliminary
© 1997 Microchip Technology Inc.
FIGURE 7-11: EXTERNAL POWER-ON
RESET CIRCUIT (FOR SLOW
VDD POWER-UP)
Note 1: External power-on reset circuit is required
only if VDD power-up slope is too slow.
The diode D helps discharge the capaci-
tor quickly when VDD powers down.
2:
< 40 k
Ω is recommended to make sure
that voltage drop across R does not vio-
late the device’s electrical specification.
3: R1 = 100
Ω to 1 kΩ will limit any current
flowing into MCLR from external capaci-
tor C in the event of MCLR/VPP pin break-
down due to Electrostatic Discharge
(ESD) or Electrical Overstress (EOS).
C
R1
R
D
VDD
MCLR
PIC16C55X(A)
VDD



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