PIC16F684T-E/ST Microchip Technology, PIC16F684T-E/ST Datasheet - Page 38

• Manufacturer Part Number: PIC16F684T-E/ST
• Description: IC PIC MCU FLASH 2KX14 14TSSOP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F684T-E/ST

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 12
• 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 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 14-TSSOP
• For Use With: XLT14SS-1 - SOCKET TRANSITION 14DIP/14SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Connectivity: -

PIC16F684
FIGURE 4-2:
DS41202F-page 36
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
To Comparator
CK
CK
CK
CK
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
Input Mode
(1)
RAPU
Analog
Q
Q
(1)
EN
EN
D
D
V
DD
Weak
V
V
Q3
DD
SS
I/O Pin
4.2.5.3
Figure 4-3 shows the diagram for this pin. The RA2 pin
is configurable to function as one of the following:
• a general purpose I/O
• an analog input for the ADC
• the clock input for TMR0
• an external edge triggered interrupt
• a digital output from Comparator 1
FIGURE 4-3:
Data Bus
PORTA
PORTA
WPUA
WPUA
TRISA
TRISA
IOCA
IOCA
Interrupt-on-
WR
WR
WR
WR
RD
RD
RD
RD
Note 1:
Change
D
D
D
D
To Timer0
To INT
To A/D Converter
CK
CK
CK
CK
Analog Input mode is generated by ANSEL.
RA2/AN2/T0CKI/INT/C1OUT
Q
Q
Q
Q
Q
Q
Q
Q
BLOCK DIAGRAM OF RA2
Input Mode
Analog
© 2007 Microchip Technology Inc.
C1OUT
Enable
C1OUT
(1)
Input Mode
RAPU
RD PORTA
Analog
1
0
Q
Q
(1)
EN
EN
D
D
V
DD
Weak
V
V
Q3
DD
SS
I/O Pin