PIC16F884-E/ML Microchip Technology, PIC16F884-E/ML Datasheet - Page 45

• Manufacturer Part Number: PIC16F884-E/ML
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,LLCC,44PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F884-E/ML

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 35
• Program Memory Size: 7KB (4K x 14)
• 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 14x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 44-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3.2.3.2
Figure 3-2 shows the diagram for this pin. This pin is
configurable to function as one of the following:
• a general purpose I/O
• an analog input for the ADC
• a negative analog input to Comparator C1 or C2
FIGURE 3-2:
© 2009 Microchip Technology Inc.
Data Bus
PORTA
PORTA
TRISA
TRISA
WR
WR
RD
RD
Note 1:
D
D
To Comparator
To A/D Converter
CK
CK
ANSEL determines Analog Input mode.
RA1/AN1/C12IN1-
Q
Q
Q
Q
BLOCK DIAGRAM OF RA1
Input Mode
Analog
(1)
V
V
DD
SS
PIC16F882/883/884/886/887
I/O Pin
3.2.3.3
Figure 3-3 shows the diagram for this pin. This pin is
configurable to function as one of the following:
• a general purpose I/O
• an analog input for the ADC
• a negative voltage reference input for the ADC
• a comparator voltage reference output
• a positive analog input to Comparator C2
FIGURE 3-3:
Data Bus
PORTA
PORTA
TRISA
TRISA
and CV
WR
WR
RD
RD
Note 1:
REF
D
D
To Comparator (positive input)
To Comparator (V
To A/D Converter (V
To A/D Converter (analog channel)
CK
CK
ANSEL determines Analog Input mode.
RA2/AN2/V
Q
Q
Q
Q
BLOCK DIAGRAM OF RA2
VROE
REF
REF
REF
-)
-)
Input Mode
-/CV
Analog
CV
REF
REF
(1)
DS41291F-page 43
/C2IN+
V
V
DD
SS
I/O Pin