PIC16F684-E/P Microchip Technology, PIC16F684-E/P Datasheet - Page 38

• Manufacturer Part Number: PIC16F684-E/P
• Description: IC PIC MCU FLASH 2KX14 14DIP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F684-E/P

• Program Memory Type: FLASH
• Program Memory Size: 3.5KB (2K x 14)
• Package / Case: 14-DIP (0.300", 7.62mm)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 12
• Eeprom Size: 256 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 128 B
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 12
• Number Of Timers: 3
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 125 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
• On-chip Adc: 8-ch x 10-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: DM163029 - BOARD PICDEM FOR MECHATRONICSACICE0207 - MPLABICE 14P 300 MIL ADAPTER
• Connectivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC16F684
4.2.4
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.
4.2.4.1
Figure 4-2 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 the comparator
• In-Circuit Serial Programming data
• an analog input for the Ultra Low-power Wake-up
4.2.4.2
Figure 4-2 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 the comparator
• a voltage reference input for the A/D
• In-Circuit Serial Programming clock
DS41202C-page 36
PIN DESCRIPTIONS AND
DIAGRAMS
RA0/AN0/C1IN+/ICSPDAT/ULPWU
RA1/AN1/C1IN-/V
REF
/ICSPCLK
Preliminary
FIGURE 4-2:
Data Bus
PORTA
PORTA
WPUA
WPUA
TRISA
TRISA
IOCA
IOCA
Interrupt-on-
Note 1:
WR
WR
WR
WR
RD
RD
RD
RD
Change
D
D
D
D
CK
CK
CK
CK
To Comparator
To A/D Converter
Comparator mode and ANSEL determines Analog
Input mode.
Q
Q
Q
Q
Q
Q
Q
Q
Input Mode
BLOCK DIAGRAM OF RA1
Analog
RD PORTA
 2004 Microchip Technology Inc.
Input Mode
(1)
RAPU
Analog
Q
Q
(1)
EN
EN
D
D
V
DD
Weak
V
V
DD
Q3
SS
I/O PIN