PIC16F631-E/ML Microchip Technology, PIC16F631-E/ML Datasheet - Page 66

• Manufacturer Part Number: PIC16F631-E/ML
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,LLCC,20PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F631-E/ML

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, POR, WDT
• Number Of I /o: 18
• Program Memory Size: 1.75KB (1K x 14)
• Program Memory Type: FLASH
• 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 ~ 125°C
• Package / Case: 20-VQFN Exposed Pad, 20-HVQFN, 20-SQFN, 20-DHVQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 658-1047-5 - BOARD EVALUATION ACCESSTOUCHAC164324 - MODULE SKT FOR MPLAB 8DFN/16QFNAC162061 - HEADER INTRFC MPLAB ICD2 20PINDVA1004 - DEVICE ADAPTER 8/14/20DIP
• 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:
DS41262E-page 64
PIN DESCRIPTIONS AND
DIAGRAMS
Interrupt-on-Change
Data Bus
WPUA
PORTA
WPUA
PORTA
Note 1:
TRISA
TRISA
WR
IOCA
IOCA
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
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
© 2008 Microchip Technology Inc.
V
T
V
V
DD
SS
I/O Pin