PIC18LF4431-I/P Microchip Technology, PIC18LF4431-I/P Datasheet - Page 178
![IC PIC MCU FLASH 8KX16 40DIP](/photos/6/61/66192/150-40-dip_sml.jpg)
PIC18LF4431-I/P
Manufacturer Part Number
PIC18LF4431-I/P
Description
IC PIC MCU FLASH 8KX16 40DIP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F818-ISO.pdf
(6 pages)
3.PIC18F2331-ISO.pdf
(392 pages)
4.PIC18F2331-ISO.pdf
(8 pages)
5.PIC18F2331-ISO.pdf
(6 pages)
6.PIC18F2331-ISO.pdf
(16 pages)
7.PIC18LF2331-ISO.pdf
(4 pages)
8.PIC18LF2331-ISO.pdf
(40 pages)
9.PIC18F4331-EP.pdf
(400 pages)
Specifications of PIC18LF4431-I/P
Core Size
8-Bit
Program Memory Size
16KB (8K x 16)
Oscillator Type
Internal
Core Processor
PIC
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, Power Control PWM, QEI, POR, PWM, WDT
Number Of I /o
36
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 9x10b
Operating Temperature
-40°C ~ 85°C
Package / Case
40-DIP (0.600", 15.24mm)
Controller Family/series
PIC18
No. Of I/o's
36
Eeprom Memory Size
256Byte
Ram Memory Size
768Byte
Cpu Speed
40MHz
Processor Series
PIC18LF
Core
PIC
Data Bus Width
8 bit
Data Ram Size
768 B
Interface Type
EUSART, I2C, SPI, SSP
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
36
Number Of Timers
1 x 8
Operating Supply Voltage
2 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, ICE4000, DV164136
Minimum Operating Temperature
- 40 C
On-chip Adc
9 bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18LF4431-I/P
Manufacturer:
Microchip Technology
Quantity:
135
Company:
Part Number:
PIC18LF4431-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC16F818-ISO PDF datasheet #2
- PIC18F2331-ISO PDF datasheet #3
- PIC18F2331-ISO PDF datasheet #4
- PIC18F2331-ISO PDF datasheet #5
- PIC18F2331-ISO PDF datasheet #6
- PIC18LF2331-ISO PDF datasheet #7
- PIC18LF2331-ISO PDF datasheet #8
- PIC18F4331-EP PDF datasheet #9
- Current page: 178 of 400
- Download datasheet (7Mb)
PIC18F2331/2431/4331/4431
FIGURE 16-13:
16.2.6.2
The velocity event pulse (velcap, see Figure 16-12)
serves as the TMR5 capture trigger to IC1 while in the
Velocity mode. The number of velocity events are
reduced by the velocity postscaler before they are used
as the input capture clock. The velocity event reduction
ratio can be set with the PDEC1:PDEC0 control bits
(QEICON<1:0>) to 1:4, 1:16, 1:64 or no reduction (1:1).
The velocity postscaler settings are automatically
reloaded from their previous values as the Velocity
mode is re-enabled.
DS39616C-page 176
Note 1: Timing shown is for QEIM<2:0> = 101, 110 or 111 (x4 Update mode enabled) and the velocity postscaler divide ratio
QEA
QEB
vel_out
velcap
TMR5
VELR
cnt_reset
IC1IF
CAP1REN
Instr.
Execution
2: VELR register latches the TMR5 count on the “velcap” capture pulse. Timer5 must be set to the Synchronous Timer or
3: The TMR5 counter is reset on the next Q1 clock cycle following the “velcap” pulse. TMR5 value is unaffected when
4: IC1IF interrupt is enabled by setting IC1IE as follows: BSF PIE2, IC1IE. Assume IC1E bit is placed in PIE2
5: Post decimation value is changed from PDEC = 01 (decimate by 4) to PDEC = 00 (decimate by 1).
is set to divide by 4 (PDEC<1:0> = 01).
Counter mode. In this example, it is set to the Synchronous Timer mode, where the TMR5 prescaler divide ratio = 1
(i.e., Timer5 clock = T
the Velocity Measurement mode is first enabled (VELM = 0). The velocity postscaler values must be reconfigured to
their previous settings when re-entering Velocity Measurement mode. While making speed measurements of very
slow rotational speeds (e.g., servo-controller applications), the Velocity Measurement mode may not provide
sufficient precision. The Pulse-Width Measurement mode may have to be used to provide the additional precision.
In this case, the input pulse is measured on the CAP1 input pin.
Peripheral Interrupt Enable register in the target device. The actual IC1IF bit is written on Q2 rising edge.
(4)
(2)
(2)
Velocity Postscaler
(3)
BCF T5CON, VELM
VELOCITY MEASUREMENT TIMING
Old Value
CY
BCF PIE2, IC1IE
).
Q1
BSF PIE2, IC1IE
Preliminary
Forward
1529
Q1
16.2.6.3
The TMR5 value can be reset (TMR5 register
pair = 0000h) on a velocity event capture by setting
the CAP1REN bit (CAP1CON<6>). When CAP1REN
is cleared, the TMR5 time base will not be reset on
any velocity event capture pulse. The VELR register
pair, however, will continue to be updated with the
current TMR5 value.
(1)
MOVWF QEICON
1537
Reverse
CAP1REN in Velocity Mode
(5)
Q1
© 2007 Microchip Technology Inc.
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