PIC16F688-I/ST Microchip Technology, PIC16F688-I/ST Datasheet - Page 58
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PIC16F688-I/ST
Manufacturer Part Number
PIC16F688-I/ST
Description
IC PIC MCU FLASH 4KX14 14TSSOP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(204 pages)
3.PIC16F688T-ISL.pdf
(6 pages)
4.PIC16F688T-ISL.pdf
(4 pages)
5.PIC16F688T-ISL.pdf
(688 pages)
6.PIC16F688-EP.pdf
(174 pages)
Specifications of PIC16F688-I/ST
Program Memory Type
FLASH
Program Memory Size
7KB (4K x 14)
Package / Case
14-TSSOP
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
UART/USART
Peripherals
Brown-out Detect/Reset, POR, WDT
Number Of I /o
12
Eeprom Size
256 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
PIC16F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
256 B
Interface Type
SCI/USART
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
On-chip Adc
8-ch x 10-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
XLT14SS-1 - SOCKET TRANSITION 14DIP/14SSOPAC162061 - HEADER INTRFC MPLAB ICD2 20PINAC162056 - HEADER INTERFACE ICD2 16F688
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F688-I/ST
Manufacturer:
TI
Quantity:
2 748
Part Number:
PIC16F688-I/ST
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
PIC16F688
7.3
There are eight modes of operation for the comparators.
The CMCON0 register is used to select these modes.
Figure 7-3 shows the eight possible modes.
FIGURE 7-3:
DS41203B-page 56
Comparators Reset (POR Default Value)
CM<2:0> = 000
Two Independent Comparators
CM<2:0> = 100
Two Common Reference Comparators
CM<2:0> = 011
One Independent Comparator
CM<2:0> = 101
Legend:
RA1/AN1
RA0/AN0
RC1/AN5
RC0/AN4
RA1/AN1
RA0/AN0
RC1/AN5
RC0/AN4
RA1/AN1
RA0/AN0
RC1/AN5
RC0/AN4
RA1/AN1
RA0/AN0
RC1/AN5
RC0/AN4
Comparator Configuration
D = Digital Input
A = Analog Input, ports always read ‘0’
A
A
A
A
A
A
A
A
A
D
A
A
D
D
A
A
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
COMPARATOR I/O OPERATING MODES
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
C1
C2
C1
C2
C1
C2
C1
C2
Off
Off
C1OUT
C2OUT
C1OUT
C2OUT
Off
C2OUT
(Read as ‘0’)
(Read as ‘0’)
(Read as ‘0’)
Preliminary
Two Common Reference Comparators with Outputs
CM<2:0> = 110
Comparators Off
CM<2:0> = 111
Four Inputs Multiplexed to Two Comparators
CM<2:0> = 010
Three Inputs Multiplexed to Two Comparators
CM<2:0> = 001
RA1/AN1
RC1/AN5
RC0/AN4
CIS (CMCON0<3>) is the Comparator Input Switch
RA1/AN1
RA0/AN0
RC1/AN5
RC0/AN4
RA1/AN1
RA0/AN0
RC1/AN5
RC0/AN4
If the Comparator mode is changed, the comparator
output level may not be valid for the specified mode
change delay shown in Section 14.0 “Electrical Spec-
ifications”.
RA1/AN1
RA0/AN0
RC1/AN5
RC0/AN4
Note:
A
A
A
D
D
D
D
A
A
A
A
A
A
A
A
Comparator interrupts should be disabled
during a Comparator mode change.
Otherwise, a false interrupt may occur.
CIS = 0
CIS = 1
CIS = 0
CIS = 1
V
V
V
V
V
V
V
V
CIS = 0
CIS = 1
IN
IN
IN
IN
IN
IN
IN
IN
-
+
-
+
-
+
-
+
C1
C2
2004 Microchip Technology Inc.
C1
C2
V
V
V
V
V
V
V
V
IN
IN
IN
IN
IN
IN
IN
IN
-
+
-
+
-
+
-
+
From
C1OUT
C2OUT
Off
Off
C1
C2
C1
C2
RA2
RC4
CV
(Read as ‘0’)
(Read as ‘0’)
REF
C2OUT
C1OUT
C2OUT
C1OUT
Module