PIC16F785-I/P Microchip Technology Inc., PIC16F785-I/P Datasheet - Page 41

• Manufacturer Part Number: PIC16F785-I/P
• Description: MCU, 8-Bit, 2KW Flash, 128 RAM, 18 I/O, DIP-20
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F785-I/P

• A/d Inputs: 12-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 5 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 17
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 20-pin PDIP
• Programmable Memory: 3.5K Bytes
• Ram Size: 128 Bytes
• Speed: 20 MHz
• Timers: 2-8-bit, 1-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

4.2.3.3
Figure 4-3 shows the diagram for this pin. The RA2 pin
is configurable to function as one of the following:
• General purpose I/O
• Analog input for the A/D
• Clock input for TMR0
• External edge triggered interrupt
• Digital output from Comparator 1
FIGURE 4-3:
© 2006 Microchip Technology Inc.
Data Bus
PORTA
PORTA
WPUA
WPUA
TRISA
TRISA
C1OE
C1OUT
IOCA
IOCA
Interrupt-on-
WR
WR
WR
WR
RD
RD
RD
RD
Change
D
D
D
D
To TMR0
To INT
To A/D Converter
CK
CK
CK
CK
RA2/AN2/T0CKI/INT/C1OUT
Q
Q
Q
Q
Q
Q
Q
Q
BLOCK DIAGRAM OF RA2
RD PORTA
Q
Q
Q
RAPU
ANS2
ANS2
1
0
EN
EN
EN
D
D
D
Q1
V
DD
Weak
V
V
DD
SS
Q3
I/O pin
Preliminary
4.2.3.4
Figure 4-4 shows the diagram for this pin. The RA3 pin
is configurable to function as one of the following:
• General purpose input
• Master Clear Reset with weak pull-up
FIGURE 4-4:
Data Bus
WPUA
WPUA
PORTA
IOCA
IOCA
TRISA
WR
RD
RD
RD
Interrupt-on-
WR
RD
Change
PIC16F785/HV785
D
D
CK
CK
RA3/MCLR/V
Q
Q
Q
Q
Reset
BLOCK DIAGRAM OF RA3
V
SS
RAPU
MCLRE
PP
RD PORTA
MCLRE
Q
Q
Q
MCLRE
DS41249D-page 39
EN
EN
EN
D
D
D
V
DD
Q1
Weak
V
SS
Q3
Input
pin