PIC16F688-E/ML Microchip Technology, PIC16F688-E/ML Datasheet - Page 40

• Manufacturer Part Number: PIC16F688-E/ML
• Description: IC PIC MCU FLASH 4KX14 16QFN
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F688-E/ML

• Core Size: 8-Bit
• Program Memory Size: 7KB (4K x 14)
• Core Processor: PIC
• Speed: 20MHz
• Connectivity: UART/USART
• Peripherals: Brown-out Detect/Reset, POR, WDT
• Number Of I /o: 12
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 256 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: 16-QFN
• Controller Family/series: PIC16F
• No. Of I/o's: 12
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 256Byte
• Cpu Speed: 20MHz
• No. Of Timers: 2
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: EUSART, RS- 232, SCI, USB
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 12
• Number Of Timers: 2
• Maximum Operating Temperature: + 125 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, DM163014, DM164120-4
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC164324 - MODULE SKT FOR MPLAB 8DFN/16QFNXLT16QFN1 - SOCKET TRANSITION 14DIP TO 16QFNAC162061 - HEADER INTRFC MPLAB ICD2 20PINAC162056 - HEADER INTERFACE ICD2 16F688
• Lead Free Status / Rohs Status: Details

PIC16F688
4.2.5.2
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
FIGURE 4-2:
DS41203E-page 38
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 Comparator
To A/D Converter
CK
CK
CK
CK
Comparator mode and ANSEL determines analog
Input mode.
RA1/AN1/C1IN-/V
Q
Q
Q
Q
Q
Q
Q
Q
Input Mode
BLOCK DIAGRAM OF RA1
Analog
RD PORTA
Input Mode
(1)
RAPU
Analog
Q
Q
REF
(1)
EN
EN
D
D
/ICSPCLK
V
DD
Weak
V
V
DD
Q3
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 A/D
• the clock input for Timer0
• an external edge triggered interrupt
• a digital output from the comparator
FIGURE 4-3:
Data Bus
PORTA
PORTA
WPUA
WPUA
TRISA
TRISA
IOCA
IOCA
Interrupt-on-
WR
WR
WR
WR
Note 1:
RD
RD
RD
RD
change
D
D
D
D
To Timer0
To INT
To A/D Converter
CK
CK
CK
CK
Analog Input mode is based upon ANSEL.
RA2/AN2/T0CKI/INT/C1OUT
Q
Q
Q
Q
Q
Q
Q
Q
BLOCK DIAGRAM OF RA2
Input Mode
Analog
© 2009 Microchip Technology Inc.
C1OUT
C1OUT
Enable
(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