PIC16F690-E/ML Microchip Technology, PIC16F690-E/ML Datasheet - Page 67

• Manufacturer Part Number: PIC16F690-E/ML
• Description: IC, 8BIT MCU, PIC16F, 20MHZ, QFN-20
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F690-E/ML

• Controller Family/series: PIC16F
• No. Of I/o's: 18
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 256Byte
• Cpu Speed: 20MHz
• No. Of Timers: 3
• Core Size: 8 Bit
• Program Memory Size: 4096 Words
• Core Processor: PIC
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 18
• 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 12x10b
• 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: XLT20QFN-1 - SOCKET TRANSITION 20DIP-20QFNAC164324 - MODULE SKT FOR MPLAB 8DFN/16QFNPIC16F690DM-PCTLHS - BOARD DEMO PICTAIL HUMIDITY SNSRAC162061 - HEADER INTRFC MPLAB ICD2 20PIN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

4.2.5.2
Figure 4-2 shows the diagram for this pin. The
RA1/AN1/C12IN0-/V
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 or C2
• a voltage reference input for the ADC
• In-Circuit Serial Programming clock
FIGURE 4-2:
© 2008 Microchip Technology Inc.
Data Bus
PORTA
PORTA
WPUA
WPUA
TRISA
TRISA
IOCA
IOCA
Interrupt-on-
WR
WR
WR
WR
Note 1:
RD
RD
RD
RD
Change
2:
D
D
D
D
To Comparator
To A/D Converter
CK
CK
CK
CK
ANSEL determines Analog Input mode.
Not implemented on PIC16F631.
RA1/AN1/C12IN0-/V
Q
Q
Q
Q
Q
Q
Q
Q
REF
Input Mode
BLOCK DIAGRAM OF RA1
Analog
RD PORTA
/ICSPCLK pin is configurable to
(2)
Input Mode
(1)
RABPU
Analog
Q
Q
(1)
EN
EN
PIC16F631/677/685/687/689/690
REF
D
D
V
/ICSPCLK
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/AN2/T0CKI/INT/C1OUT pin is configurable to
function as one of the following:
• a general purpose I/O
• an analog input for the ADC (except PIC16F631)
• the clock input for Timer0
• an external edge triggered interrupt
• a digital output from Comparator C1
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
2:
D
D
D
D
To Timer0
To INT
To A/D Converter
CK
CK
CK
CK
ANSEL determines Analog Input mode.
Not implemented on PIC16F631.
RA2/AN2/T0CKI/INT/C1OUT
Q
Q
Q
Q
Q
Q
Q
Q
Input Mode
BLOCK DIAGRAM OF RA2
Analog
C1OUT
(2)
C1OUT
Enable
(1)
Input Mode
RABPU
RD PORTA
Analog
1
0
Q
Q
(1)
EN
EN
DS41262E-page 65
D
D
V
DD
Weak
V
V
DD
Q3
SS
I/O Pin