PIC16LF737-I/ML Microchip Technology, PIC16LF737-I/ML Datasheet - Page 165
![IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,LLCC,28PIN,PLASTIC](/photos/6/81/68120/150-28-qfn_sml.jpg)
PIC16LF737-I/ML
Manufacturer Part Number
PIC16LF737-I/ML
Description
IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,LLCC,28PIN,PLASTIC
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Specifications of PIC16LF737-I/ML
Rohs Compliant
YES
Core Processor
PIC
Core Size
8-Bit
Speed
10MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
25
Program Memory Size
7KB (4K x 14)
Program Memory Type
FLASH
Ram Size
368 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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13.2
A single comparator is shown in Figure 13-2, 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. When the analog input at V
greater than the analog input V
comparator is a digital high level. The shaded areas of
the output of the comparator in Figure 13-2 represent
the uncertainty due to input offsets and response time.
13.3
An external or internal reference signal may be used
depending on the comparator operating mode. The
analog signal present at V
at V
adjusted accordingly (Figure 13-2).
FIGURE 13-2:
13.3.1
When external voltage references are used, the
comparator module can be configured to have the com-
parators operate from the same or different reference
sources. However, threshold detector applications may
require the same reference. The reference signal must
be between V
pin of the comparator(s).
2004 Microchip Technology Inc.
Output
V
V
Output
IN
IN
V
V
IN
IN–
IN+
-
+
+ and the digital output of the comparator is
V
V
IN
IN
Comparator Operation
Comparator Reference
+
-
EXTERNAL REFERENCE SIGNAL
SS
and V
+
–
SINGLE COMPARATOR
IN
DD
-, the output of the comparator
IN
and can be applied to either
- is compared to the signal
IN
-, the output of the
Output
IN
+ is less
IN
+ is
13.3.2
The comparator module also allows the selection of an
internally generated voltage reference for the compar-
ators. Section 14.0 “Comparator Voltage Reference
Module” contains a detailed description of the com-
parator voltage reference module that provides this
signal. The internal reference signal is used when
comparators are in mode CM<2:0> = 110 (Figure 13-1).
In this mode, the internal voltage reference is applied to
the V
13.4
Response time is the minimum time after selecting a
new reference voltage, or input source, before the
comparator output has a valid level. If the internal
reference is changed, the maximum delay of the inter-
nal voltage reference must be considered when using
the comparator outputs. Otherwise, the maximum
delay of the comparators should be used (Section 18.0
“Electrical Characteristics”).
13.5
The comparator outputs are read through the CMCON
register. These bits are read-only. The comparator
outputs may also be directly output to the RA4 and RA5
I/O pins. When enabled, multiplexors in the output path
of the RA4 and RA5 pins will switch and the output of
each pin will be the unsynchronized output of the
comparator.
comparators is related to the input offset voltage and
the response time given in the specifications.
Figure 13-3 shows the comparator output block
diagram.
The TRISA bits will still function as an output enable/
disable for the RA4 and RA5 pins while in this mode.
The polarity of the comparator outputs can be changed
using the C2INV and C1INV bits (CMCON<5:4:>).
Note 1: When reading the Port register, all pins
IN
+ pin of both comparators.
2: Analog levels on any pin defined as a
3: RA4 is an open collector I/O pin. When
Comparator Response Time
Comparator Outputs
INTERNAL REFERENCE SIGNAL
configured as analog inputs will read as a
‘0’. Pins configured as digital inputs will
convert an analog input according to the
Schmitt Trigger input specification.
digital input may cause the input buffer to
consume more current than is specified.
used as an output, a pull-up resistor is
required.
The
uncertainty
PIC16F7X7
of
DS30498C-page 163
each
of
the
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