PIC16F506-I/SL Microchip Technology, PIC16F506-I/SL Datasheet - Page 49

• Manufacturer Part Number: PIC16F506-I/SL
• Description: IC PIC MCU FLASH 1KX14 14SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F506-I/SL

• Program Memory Type: FLASH
• Program Memory Size: 1.5KB (1K x 12)
• Package / Case: 14-SOIC (3.9mm Width), 14-SOL
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: POR, WDT
• Number Of I /o: 11
• Ram Size: 67 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 4x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• 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: 3-ch x 8-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Connectivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

7.1
A single comparator is shown in Figure 7-3 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 comparator in Figure 7-3 represent the uncertainty
due to input offsets and response time. See Table 13-1
for Common Mode Voltage.
FIGURE 7-3:
7.2
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 accord-
ingly (Figure 7-3). Please see Section 8.0 “Compara-
tor Voltage Reference Module (PIC16F506 only)” for
internal reference specifications.
7.3
Response time is the minimum time after selecting a
new reference voltage or input source before the com-
parator 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 13-1
specifications.
7.4
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 7-3.
© 2007 Microchip Technology Inc.
V
V
Result
IN
IN
-
+
V
V
IN
IN
Comparator Operation
Comparator Reference
Comparator Response Time
Comparator Output
+
-
IN
for
- is compared to the signal at V
comparator
+
–
IN
SINGLE COMPARATOR
-, the output of the comparator
response
Result
IN
+ is less
IN
+, and
time
7.5
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.
7.6
When the comparator is enabled it is active. To mini-
mize power consumption while in Sleep mode, turn off
the comparator before entering Sleep.
7.7
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.
7.8
A simplified circuit for an analog input is shown in
Figure 7-4. 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 source impedance of 10 kΩ is recom-
mended for the analog sources. Any external compo-
nent 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
PIC12F510/16F506
. 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.
. If the input voltage deviates from this
DS41268D-page 47
DD