PIC16F631-I/P Microchip Technology, PIC16F631-I/P Datasheet - Page 66

• Manufacturer Part Number: PIC16F631-I/P
• Description: IC PIC MCU FLASH 1KX14 20DIP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F631-I/P

• Program Memory Type: FLASH
• Program Memory Size: 1.75KB (1K x 14)
• Package / Case: 20-DIP (0.300", 7.62mm)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, POR, WDT
• Number Of I /o: 18
• Eeprom Size: 128 x 8
• Ram Size: 64 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 64 B
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 17
• Number Of Timers: 2
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DM163014, DM164120-4
• Minimum Operating Temperature: - 40 C
• Data Rom Size: 128 B
• Height: 3.3 mm
• Length: 26.16 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Width: 6.35 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 658-1047-5 - BOARD EVALUATION ACCESSTOUCHAC162061 - HEADER INTRFC MPLAB ICD2 20PINAC164039 - MODULE SKT PROMATE II 20DIP/SOICACICE0203 - MPLABICE 20P 300 MIL ADAPTER
• Data Converters: -
• Connectivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC16F631/677/685/687/689/690
4.2.5
Each PORTA pin is multiplexed with other functions. The
pins and their combined functions are briefly described
here. For specific information about individual functions
such as the comparator or the A/D Converter (ADC),
refer to the appropriate section in this data sheet.
FIGURE 4-1:
DS41262C-page 64
PIN DESCRIPTIONS AND
DIAGRAMS
Interrupt-on-Change
Data Bus
WPUDA
WPUDA
PORTA
PORTA
Note 1:
TRISA
TRISA
IOCA
IOCA
WR
RD
WR
WR
WR
RD
RD
RD
BLOCK DIAGRAM OF RA0
2:
D
D
D
D
ANSEL determines Analog Input mode.
Not implemented on PIC16F631.
CK
CK
CK
CK
Q
Q
Q
Q
Q
Q
Q
Q
To A/D Converter
To Comparator
Preliminary
RD PORTA
Input Mode
Analog
(2)
Q
Q
(1)
Input Mode
Analog
EN
EN
4.2.5.1
Figure 4-2 shows the diagram for this pin. The
RA0/AN0/C1IN+/ICSPDAT/ULPWU pin is configurable
to function as one of the following:
• a general purpose I/O
• an analog input for the ADC (except PIC16F631)
• an analog input to Comparator C1
• In-Circuit Serial Programming™ data
• an analog input for the Ultra Low-Power Wake-up
D
D
0
(1)
RABPU
1
Q3
+
-
RA0/AN0/C1IN+/ICSPDAT/ULPWU
ULPWUE
V
Weak
DD
I
ULP
V
SS
© 2006 Microchip Technology Inc.
V
T
V
V
DD
SS
I/O Pin