PIC16F785-E/SS Microchip Technology, PIC16F785-E/SS Datasheet - Page 40

• Manufacturer Part Number: PIC16F785-E/SS
• Description: 20 PIN, 3.5 KB STD FLASH, 128 RAM, 18 I/O PB FREE,
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F785-E/SS

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 17
• Program Memory Size: 3.5KB (2K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 14x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 20-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT20SS1-1 - SOCKET TRANSITION 20DIP 20SSOPAC162060 - HEADER INTRFC MPLAB ICD2 20PIN
• Connectivity: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC16F785/HV785
4.2.3
Each PORTA pin is multiplexed with other functions.
The pins and their combined functions are briefly
described here. For specific information about individ-
ual functions such as the comparator or the A/D, refer
to the appropriate section in this Data Sheet.
4.2.3.1
Figure 4-1 shows the diagram for this pin. The RA0 pin
is configurable to function as one of the following:
• General purpose I/O
• Analog input for the A/D
• Analog input to Comparator 1
• In-Circuit Serial Programming
FIGURE 4-1:
DS41249E-page 38
Data Bus
PORTA
PORTA
WPUA
WPUA
TRISA
TRISA
Interrupt-on-
IOCA
IOCA
WR
WR
WR
WR
RD
RD
RD
RD
change
To Comparator
To A/D Converter
D
D
D
D
PORTA PIN DESCRIPTIONS AND
DIAGRAMS
CK
CK
CK
CK
RA0/AN0/C1IN+/ICSPDAT
Q
Q
Q
Q
Q
Q
Q
Q
BLOCK DIAGRAM OF RA0
RD PORTA
ANS0
RAPU
ANS0
™
Q
Q
Q
data
EN
EN
EN
D
D
D
V
DD
Weak
Q1
V
V
DD
SS
I/O pin
Q3
4.2.3.2
Figure 4-1 shows the diagram for this pin. The RA1 pin
is configurable to function as one of the following:
• General purpose I/O
• Analog input for the A/D
• Analog input to Comparators 1 and 2
• Voltage reference input for the A/D
• Buffered or unbuffered voltage reference output
• In-Circuit Serial Programming clock
FIGURE 4-2:
Data Bus
VR
VROE*VREN
CVROE
ANS1
PORTA
PORTA
WPUA
WPUA
TRISA
TRISA
Interrupt-on-
IOCA
IOCA
WR
WR
WR
WR
RD
RD
RD
RD
OUT
change
D
D
D
D
CK
To Comparators
To A/D Converter
CK
CK
CK
RA1/AN1/C12IN0-/V
Q
Q
Q
Q
Q
Q
Q
Q
BLOCK DIAGRAM OF RA1
RD PORTA
© 2008 Microchip Technology Inc.
RAPU
Q
Q
Q
EN
EN
EN
REF
D
D
D
/ICSPCLK
V
DD
Q1
Weak
V
V
DD
SS
I/O pin
Q3