PIC18F4431-I/P Microchip Technology Inc., PIC18F4431-I/P Datasheet - Page 181
![no-image](/images/manufacturer_photos/0/4/440/microchip_technology_inc__sml.jpg)
PIC18F4431-I/P
Manufacturer Part Number
PIC18F4431-I/P
Description
Microcontroller; 16 KB Flash; 768 RAM; 256 EEPROM; 36 I/O; 40-Pin-PDIP
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC18F4431-IP.pdf
(396 pages)
Specifications of PIC18F4431-I/P
A/d Inputs
9-Channel, 10-Bit
Cpu Speed
10 MIPS
Eeprom Memory
256 Bytes
Input Output
36
Interface
I2C/SPI/USART
Memory Type
Flash
Number Of Bits
8
Package Type
40-pin PDIP
Programmable Memory
16K Bytes
Ram Size
768 Bytes
Speed
40 MHz
Timers
1-8-bit, 3-16-bit
Voltage, Range
2-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F4431-I/P
Manufacturer:
ABB
Quantity:
240
Company:
Part Number:
PIC18F4431-I/P
Manufacturer:
MICROCHIP
Quantity:
769
Part Number:
PIC18F4431-I/P
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Company:
Part Number:
PIC18F4431-I/PT
Manufacturer:
MICROCHIP
Quantity:
1 400
Company:
Part Number:
PIC18F4431-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
PIC18F4431-I/PT
Manufacturer:
MICROCHI
Quantity:
20 000
- Current page: 181 of 396
- Download datasheet (8Mb)
FIGURE 16-14:
16.4
The IC and QEI sub-modules can each generate three
distinct interrupt signals; however, they share the use
of the same three interrupt flags in register PIR3. The
meaning of a particular interrupt flag at any given time
depends on which module is active at the time the
interrupt is set. The meaning of the flags in context are
summarized in Table 16-7.
When the IC submodule is active, the three flags
(IC1IF,
interrupt-on-capture event flags for their respective
input capture channels. The channel must be
configured for one of the events that will generate an
interrupt (see Section 16.1.7 “IC Interrupts” for more
information).
When the QEI is enabled, the IC1IF interrupt flag
indicates
measurement event, usually an update of the VELR
register. The IC2QEIF interrupt indicates that a position
measurement event has occurred. IC3DRIF indicates
that a direction change has been detected.
TABLE 16-7:
2003 Microchip Technology Inc.
CAP1/INDX pin
(input to filter)
CAP1/INDX input
(output from filter)
Interrupt
IC2QEIF
IC3DRIF
IC1IF
Flag
Note 1: Only CAP1/INDX pin input is shown for simplicity. Similar event timing occurs on CAP2/QEA and CAP3/QEB pins.
IC and QEI Shared Interrupts
2: Noise filtering occurs in shaded portions of CAP1 input.
3: Filter’s group delay: T
IC2QEIF
an
T
CY
IC1 capture
IC2 capture
IC3 capture
(1)
IC Mode
(2)
interrupt
event
event
event
T
MEANING OF IC AND QEI
INTERRUPT FLAGS
GD
and
= 3T
FILTER TIMING DIAGRAM (CLOCK DIVIDER = 1:1)
CY
caused
Meaning
IC3DRIF)
Position measurement
GD
Direction change
Velocity register
= 3 T
QEI Mode
by
update
update
Noise glitch
CY
function
.
a
PIC18F2331/2431/4331/4431
velocity
(3)
Preliminary
as
16.5
16.5.1
Since the input capture can operate only when its time
base is configured in a Synchronous mode, the input
capture will not capture any events. This is because the
device’s internal clock has been stopped, and any
internal timers in synchronous modes will not incre-
ment. The prescaler will continue to count the events
(not synchronized).
When the specified capture event occurs, the CAPxIF
interrupt will be set. The Capture Buffer register will be
updated upon wake-up from sleep to the current TMR5
value. If the CAPxIF interrupt is enabled, the device will
wake-up from sleep. This effectively enables all input
capture channels to be used as the external interrupts.
16.5.2
All QEI functions are halted in Sleep mode.
Operation in Sleep Mode
3X INPUT CAPTURE IN SLEEP
MODE
QEI IN SLEEP MODE
Noise glitch
T
QEI
= 16T
(3)
CY
DS39616B-page 179
Related parts for PIC18F4431-I/P
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![PIC18F-LF1XK50](/images/no-image3.png)
Part Number:
Description:
20-Pin USB Flash Microcontrollers
Manufacturer:
MICROCHIP [Microchip Technology]
Datasheet:
![PIC18F6393T-I/PT](/photos/6/81/68123/c04-066_pf_tmb.jpg)
Part Number:
Description:
PIC18F With 128-segment LCD Driver And 12-bit ADC, 8KB Flash, 768B RAM, CCP, MSS
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F6493T-I/PT](/photos/6/81/68123/c04-066_pf_tmb.jpg)
Part Number:
Description:
PIC18F With 128-segment LCD Driver And 12-bit ADC, 16KB Flash, 768B RAM, CCP, MS
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F8393T-I/PT](/images/manufacturer_photos/0/4/439/microchip_technology_tmb.jpg)
Part Number:
Description:
PIC18F With 192-segment LCD Driver And 12-bit ADC, 8KB Flash, 768B RAM, CCP, MSS
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F8493T-I/PT](/images/manufacturer_photos/0/4/439/microchip_technology_tmb.jpg)
Part Number:
Description:
PIC18F With 192-segment LCD Driver And 12-bit ADC, 16KB Flash, 768B RAM, CCP, MS
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F6585-I/L](/photos/16/12/161282/68-plcc-large-300dpi-lyrd_tmb.jpg)
Part Number:
Description:
Microcontrollers (MCU) 48KB 3328 RAM 52 I/O
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F6680-I/L](/photos/16/12/161282/68-plcc-large-300dpi-lyrd_tmb.jpg)
Part Number:
Description:
Microcontrollers (MCU) 64KB 3328 RAM 52 I/O
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F65K90T-I/MR](/photos/16/3/160368/qfn64_tmb.jpg)
Part Number:
Description:
32kB Flash, 2kB RAM, 1kB EE, NanoWatt XLP, LCD 64 QFN 9x9x0.9mm T/R
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F65K90T-I/PT](/photos/16/3/160367/tqfp-64_tmb.jpg)
Part Number:
Description:
32kB Flash, 2kB RAM, 1kB EE, NanoWatt XLP, LCD 64 TQFP 10x10x1mm T/R
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F87K90T-I/PT](/photos/40/31/403173/tqfp-80_tmb.jpg)
Part Number:
Description:
128kB Flash, 4kB RAM, 1kB EE, 16MIPS, NanoWatt XLP, LCD, 5V 80 TQFP 12x12x1mm T/
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F65K90-I/MR](/photos/16/3/160368/qfn64_tmb.jpg)
Part Number:
Description:
32kB Flash, 2kB RAM, 1kB EE, NanoWatt XLP, LCD 64 QFN 9x9x0.9mm TUBE
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F65K90-I/PT](/photos/16/3/160367/tqfp-64_tmb.jpg)
Part Number:
Description:
32kB Flash, 2kB RAM, 1kB EE, NanoWatt XLP, LCD 64 TQFP 10x10x1mm TRAY
Manufacturer:
Microchip Technology
![PIC18F87K90-I/PT](/photos/40/31/403173/tqfp-80_tmb.jpg)
Part Number:
Description:
128kB Flash, 4kB RAM, 1kB EE, 16MIPS, NanoWatt XLP, LCD, 5V 80 TQFP 12x12x1mm TR
Manufacturer:
Microchip Technology