PIC12F629-I/P Microchip Technology, PIC12F629-I/P Datasheet - Page 40

• Manufacturer Part Number: PIC12F629-I/P
• Description: IC MCU CMOS FLASH-BASE 8BIT 8DIP
• Manufacturer: Microchip Technology
• Series: PIC® 12Fr

Specifications of PIC12F629-I/P

• Program Memory Type: FLASH
• Program Memory Size: 1.75KB (1K x 14)
• Package / Case: 8-DIP (0.300", 7.62mm)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: POR, WDT
• Number Of I /o: 5
• 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: PIC12F
• 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: 6
• Number Of Timers: 2
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• 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
• Data Rom Size: 128 B
• Height: 3.3 mm
• Length: 9.27 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2 V
• Width: 6.35 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: DM163029 - BOARD PICDEM FOR MECHATRONICSAC124001 - MODULE SKT PROMATEII 8DIP/SOIC
• Data Converters: -
• Connectivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC12F629/675
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 GP2 pin in
three of the eight possible modes, as shown in
Figure 6-2. When in one of these modes, the output on
GP2 is asynchronous to the internal clock. Figure 6-4
shows the comparator output block diagram.
FIGURE 6-4:
DS41190G-page 40
SS
and V
SS
. The analog input, therefore, must be between
Analog Input Connection
Considerations
Comparator Output
To GP2/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 TRISIO<2> bit functions as an output enable/
disable for the GP2 pin while the comparator is in an
Output mode.
RD CMCON
Note 1: When reading the GPIO register, all pins
2: Analog levels on any pin that is defined as
Leakage
±500 nA
Vss
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
GP0/CIN+
GP1/CIN-
CV
of
REF
10 k
is