PIC16F636-I/ST Microchip Technology, PIC16F636-I/ST Datasheet - Page 65

• Manufacturer Part Number: PIC16F636-I/ST
• Description: IC MCU FLASH 2KX14 14TSSOP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F636-I/ST

• Program Memory Type: FLASH
• Program Memory Size: 3.5KB (2K x 14)
• Package / Case: 14-TSSOP
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, LVD, POR, WDT
• Number Of I /o: 11
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 128 B
• Interface Type: RS- 232/SPI/USB
• 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
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit
• Package: 14TSSOP
• Device Core: PIC
• Family Name: PIC16
• Maximum Speed: 20 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC162057 - MPLAB ICD 2 HEADER 14DIP
• Eeprom Size: -
• Data Converters: -
• Connectivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

7.3
There are eight modes of operation for the comparators.
The CMCON0 register is used to select these modes.
Figure 7-3 and Figure 7-4 show the eight possible
modes. The TRISA and TRISC registers control the data
direction of the comparator output pins for each mode. If
the Comparator mode is changed, the comparator
output level may not be valid for the specified mode
change delay shown in Section 15.0 “Electrical
Specifications”.
FIGURE 7-3:
© 2005 Microchip Technology Inc.
Note:
Comparator Reset (POR Default Value – Low Power)
CM<2:0> = 000
Comparator without Output
CM<2:0> = 010
Comparator with Output and Internal Reference
CM<2:0> = 011
Comparator with Output
CM<2:0> = 001
Legend: A = Analog Input, ports always read ‘0’
Note 1:
GP1/CIN-
GP0/CIN+
GP2/C1OUT D
GP1/CIN-
GP0/CIN+
GP2/C1OUT D
GP1/CIN-
GP0/CIN+
GP2/C1OUT D
GP1/CIN-
GP0/CIN+
GP2/C1OUT D
Comparator Configuration
Comparator interrupts should be disabled
during a Comparator mode change.
Otherwise, a false interrupt may occur.
D = Digital Input
Lowest power statement assures valid digital stats on GPO, GP1 and GP2.
A
A
A
A
A
D
A
A
COMPARATOR I/O OPERATING MODES FOR PIC12F635
From CV
REF
Module
Off (Read as ‘0’)
C1OUT
C1OUT
C1OUT
PIC12F635/PIC16F636/639
Preliminary
Comparator Off (Lowest Power)
CM<2:0> = 111
Comparator w/o Output and with Internal Reference
CM<2:0> = 100
Multiplexed Input with Internal Reference and Output
CM<2:0> = 101
Multiplexed Input with Internal Reference
CM<2:0> = 110
CIS = Comparator Input Switch (CMCON0<3>)
GP1/CIN-
GP0/CIN+
GP2/C1OUT D
GP1/CIN-
GP0/CIN+
GP2/C1OUT D
GP1/CIN-
GP0/CIN+
GP2/C1OUT D
GP1/CIN-
GP0/CIN+
GP2/C1OUT D
D
D
A
D
A
A
A
A
CIS = 0
CIS = 1
CIS = 0
CIS = 1
From CV
From CV
From CV
REF
(1)
Module
REF
REF
Off (Read as ‘0’)
C1OUT
Module
DS41232B-page 63
Module
C1OUT
C1OUT