PIC16F630-I/SL Microchip Technology, PIC16F630-I/SL Datasheet - Page 42

• Manufacturer Part Number: PIC16F630-I/SL
• Description: IC MCU FLASH 1KX14 EEPROM 14SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F630-I/SL

• Program Memory Type: FLASH
• Program Memory Size: 1.75KB (1K x 14)
• Package / Case: 14-SOIC (3.9mm Width), 14-SOL
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, POR, WDT
• Number Of I /o: 12
• Eeprom Size: 128 x 8
• Ram Size: 64 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 64 B
• Interface Type: RS- 232/USB
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 12
• Number Of Timers: 2
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 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
• Package: 14SOIC N
• Device Core: PIC
• Family Name: PIC16
• Maximum Speed: 20 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Converters: -
• Connectivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC16F630/676
6.3
A simplified circuit for an analog input is shown in
Figure 6-3. Since the analog pins are connected to a
digital output, they have reverse biased diodes to V
and V
V
FIGURE 6-3:
6.4
The comparator output, COUT, is read through the
CMCON register. This bit is read-only. The comparator
output may also be directly output to the RA2 pin in
three of the eight possible modes, as shown in
Figure 6-2. When in one of these modes, the output on
RA2 is asynchronous to the internal clock. Figure 6-4
shows the comparator output block diagram.
FIGURE 6-4:
DS40039F-page 42
SS
and V
SS
. The analog input, therefore, must be between
Analog Input Connection
Considerations
Comparator Output
To RA2/T0CKI pin
DD
. If the input voltage deviates from this
VA
Legend:
To Data Bus
Rs < 10K
Set CMIF bit
ANALOG INPUT MODE
MODIFIED COMPARATOR OUTPUT BLOCK DIAGRAM
RD CMCON
A
IN
C
V
I
R
R
VA
LEAKAGE
T
PIN
IC
S
C
5 pF
PIN
= Input Capacitance
= Threshold Voltage
= Leakage Current at the pin due to Various Junctions
= Interconnect Resistance
= Source Impedance
= Analog Voltage
Q
Q
DD
V
DD
EN
EN
V
V
D
D
T
T
= 0.6V
= 0.6V
Reset
range by more than 0.6V in either direction, one of the
diodes is forward biased and a latch-up may occur. A
maximum
recommended for the analog sources. Any external
component connected to an analog input pin, such as
a capacitor or a Zener diode, should have very little
leakage current.
The TRISA<2> bit functions as an output enable/
disable for the RA2 pin while the comparator is in an
Output mode.
RD CMCON
Note 1: When reading the PORTA register, all
2: Analog levels on any pin that is defined as
Leakage
±500 nA
Vss
pins configured as analog inputs will read
as a ‘0’. Pins configured as digital inputs
will convert an analog input according to
the TTL input specification.
a digital input, may cause the input buffer
to consume more current than is
specified.
source
CINV
R
IC
impedance
 2010 Microchip Technology Inc.
CM2:CM0
RA0/CIN+
RA1/CIN-
CV
of
REF
10 k
is