PIC16F785-I/SO Microchip Technology, PIC16F785-I/SO Datasheet - Page 38

• Manufacturer Part Number: PIC16F785-I/SO
• Description: IC PIC MCU FLASH 2KX14 20SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F785-I/SO

• Program Memory Type: FLASH
• Program Memory Size: 3.5KB (2K x 14)
• Package / Case: 20-SOIC (7.5mm Width)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 17
• 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 ~ 85°C
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 128 B
• Interface Type: RS- 232/USB
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 17
• Number Of Timers: 3
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DV164120, DM163029
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 14-ch x 10-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT20SO1-1 - SOCKET TRANS ICE 20DIP TO 20SOICXLT18SO-1 - SOCKET TRANSITION 18SOIC 300MILAC162060 - HEADER INTRFC MPLAB ICD2 20PINAC164039 - MODULE SKT PROMATE II 20DIP/SOIC
• Connectivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC16F785
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:
• a general purpose I/O
• an analog input for the A/D
• an analog input to comparator 1
• In-Circuit Serial Programming
FIGURE 4-1:
DS41249A-page 36
DATA BUS
INTERRUPT-ON-
PORTA
PORTA
WPUA
WPUA
TRISA
TRISA
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
Preliminary
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:
• a general purpose I/O
• an analog input for the A/D
• an analog input to comparators 1 & 2
• a voltage reference input for the A/D
• a buffered or unbuffered voltage reference output
• In-Circuit Serial Programming clock
FIGURE 4-2:
DATA BUS
INTERRUPT-ON-
VR
VROE*VREN
CVROE
ANS1
PORTA
PORTA
WPUA
WPUA
TRISA
TRISA
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
 2004 Microchip Technology Inc.
RAPU
Q
Q
Q
EN
EN
EN
REF
D
D
D
/ICSPCLK
V
DD
Q1
V
V
WEAK
DD
SS
I/O PIN
Q3