PIC16F684 datasheet(39/192 Pages) MICROCHIP

39 / 192 page

DS41202F-page 37

PIC16F684

4.2.5.4

RA3/MCLR/VPP

Figure 4-4 shows the diagram for this pin. The RA3 pin

is configurable to function as one of the following:

• a general purpose input

• as Master Clear Reset with weak pull-up

FIGURE 4-4:

BLOCK DIAGRAM OF RA3

4.2.5.5

RA4/AN3/T1G/OSC2/CLKOUT

Figure 4-5 shows the diagram for this pin. The RA4 pin

is configurable to function as one of the following:

• a general purpose I/O

• an analog input for the ADC

• a Timer1 gate (count enable)

• a crystal/resonator connection

• a clock output

FIGURE 4-5:

BLOCK DIAGRAM OF RA4

VSS

Data Bus

RD PORTA

PORTA

IOCA

Reset

MCLRE

TRISA

VSS

MCLRE

VDD

Weak

MCLRE

Interrupt-on-

Change

Input

VDD

VSS

VDD

Weak

Analog

Input Mode

Data Bus

WPUA

PORTA

TRISA

IOCA

FOSC/4

To A/D Converter

Oscillator

Circuit

OSC1

CLKOUT

Enable

Analog(3)

Input Mode

RAPU

RD PORTA

To T1G

INTOSC/

RC/EC(2)

CLK(1)

Modes

CLKOUT

Enable

Note 1: CLK modes are XT, HS, LP, LPTMR1 and CLKOUT

Enable.

2: With CLKOUT option.

3: Analog Input mode comes from ANSEL.

Interrupt-on-

Change

I/O Pin

PIC16F684 Arkusz danych(PDF) 39 Page - Microchip Technology

PIC16F684 Arkusz danych(HTML) 39 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Arkusz danych Pobierz

Link URL