PIC16F526-I/SL Microchip Technology, PIC16F526-I/SL Datasheet - Page 66

• Manufacturer Part Number: PIC16F526-I/SL
• Description: IC PIC MCU FLASH 1KX12 14SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F526-I/SL

• Core Size: 8-Bit
• Program Memory Size: 1.5KB (1K x 12)
• Core Processor: PIC
• Speed: 20MHz
• Peripherals: POR, WDT
• Number Of I /o: 11
• Program Memory Type: FLASH
• Ram Size: 67 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 3x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 14-SOIC (3.9mm Width), 14-SOL
• Controller Family/series: PIC16F
• No. Of I/o's: 12
• Eeprom Memory Size: 64Byte
• Ram Memory Size: 67Byte
• Cpu Speed: 20MHz
• No. Of Timers: 1
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 67 B
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 12
• Number Of Timers: 1
• 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
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit, 3 Channel
• A/d Bit Size: 8 bit
• A/d Channels Available: 3
• Height: 1.25 mm
• Length: 8.65 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2 V
• Width: 3.9 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: ICE2000 - EMULATOR MPLAB-ICE 2000 POD
• Eeprom Size: -
• Connectivity: -
• Lead Free Status / Rohs Status: Details

PIC16F526
10.1
A single comparator is shown in Figure 10-2 along with
the relationship between the analog input levels and
the digital output. When the analog input at V
than the analog input V
is a digital low level. The shaded area of the output of
the
uncertainty due to input offsets and response time. See
Table 14-2 for Common Mode Voltage.
FIGURE 10-2:
10.2
An internal reference signal may be used depending on
the comparator operating mode. The analog signal that
is present at V
the digital output of the comparator is adjusted
accordingly (Figure 10-2). Please see Section 11.0
“Comparator Voltage Reference Module” for internal
reference specifications.
10.3
Response time is the minimum time after selecting a
new reference voltage or input source before the
comparator output is to have a valid level. If the
comparator inputs are changed, a delay must be used
to allow the comparator to settle to its new state.
Please see Table 14-3 for comparator response time
specifications.
10.4
The comparator output is read through the CM1CON0
or CM2CON0 register. This bit is read-only. The
comparator output may also be used externally, see
Figure 10-1.
DS41326E-page 66
V
V
Result
IN
IN
-
+
comparator
V
V
IN
IN
Comparator Operation
Comparator Reference
Comparator Response Time
Comparator Output
+
-
IN
- is compared to the signal at V
in
+
–
SINGLE COMPARATOR
IN
-, the output of the comparator
Figure 10-2
represent
Result
IN
+ is less
IN
+, and
the
10.5
The Comparator Wake-up Flag is set whenever all of
the following conditions are met:
• C1WU = 0 (CM1CON0<0>) or
• CM1CON0 or CM2CON0 has been read to latch
• Device is in Sleep
• The output of a comparator has changed state
The wake-up flag may be cleared in software or by
another device Reset.
10.6
When the comparator is enabled it is active. To
minimize power consumption while in Sleep mode, turn
off the comparator before entering Sleep.
10.7
A Power-on Reset (POR) forces the CM2CON0
register to its Reset state. This forces the Comparator
input pins to analog Reset mode. Device current is
minimized when analog inputs are present at Reset
time.
10.8
A simplified circuit for an analog input is shown in
Figure 10-3. Since the analog pins are connected to a
digital output, they have reverse biased diodes to V
and V
V
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.
SS
Note:
C2WU = 0 (CM2CON0<0>)
the last known state of the C1OUT and C2OUT bit
(MOVF CM1CON0, W)
and V
SS
. The analog input, therefore, must be between
Comparator Wake-up Flag
Comparator Operation During
Sleep
Effects of Reset
Analog Input Connection
Considerations
DD
Analog levels on any pin that is defined as
a digital input may cause the input buffer
to consume more current than is specified.
source
. If the input voltage deviates from this
impedance
 2010 Microchip Technology Inc.
of
10 k
DD
is