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PIC16F818-E/ML Datasheet(PDF) 43 Page - Microchip Technology

Part # PIC16F818-E/ML
Description  18/20-Pin Enhanced Flash Microcontrollers with nanoWatt Technology
PDF  176 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16F818-E/ML Datasheet(HTML) 43 Page - Microchip Technology

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 2004 Microchip Technology Inc.
DS39598E-page 41
PIC16F818/819
FIGURE 5-5:
BLOCK DIAGRAM OF RA5/MCLR/VPP PIN
FIGURE 5-6:
BLOCK DIAGRAM OF RA6/OSC2/CLKO PIN
D
Q
EN
MCLR Filter
RA5/MCLR/VPP
RD Port
MCLR Circuit
MCLRE
MCLRE
Data
Bus
RD TRIS
Schmitt Trigger
Buffer
VSS
VSS
Schmitt Trigger
Input Buffer
Data
Bus
Q
D
Q
CK
P
N
WR
PORTA
WR
TRISA
Data Latch
TRIS Latch
RD TRISA
RD PORTA
VSS
VDD
RA6/OSC2/CLKO
Q
D
Q
CK
D
Q
EN
Oscillator
Circuit
From OSC1
(FOSC = 1x0,011)
P
N
VSS
VDD
CLKO (FOSC/4)
VDD
Note 1:
I/O pins have protection diodes to VDD and VSS.
2: CLKO signal is 1/4 of the FOSC frequency.
(FOSC = 1x1)
VSS
Schmitt Trigger
Input Buffer
(FOSC = 1x0,011)



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