PIC18F4331-E/PT Microchip Technology, PIC18F4331-E/PT Datasheet - Page 175
PIC18F4331-E/PT
Manufacturer Part Number
PIC18F4331-E/PT
Description
IC MCU FLASH 4KX16 44TQFP
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
(40 pages)
8.PIC18F4331-EP.pdf
(400 pages)
Specifications of PIC18F4331-E/PT
Core Size
8-Bit
Program Memory Size
8KB (4K x 16)
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)
4.2 V ~ 5.5 V
Data Converters
A/D 9x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
44-TQFP, 44-VQFP
Controller Family/series
PIC18
No. Of I/o's
36
Eeprom Memory Size
256Byte
Ram Memory Size
768Byte
Cpu Speed
40MHz
No. Of Timers
4
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
I3-DB18F4431 - BOARD DAUGHTER ICEPIC3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F4331-E/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
- PIC18F4331-EP PDF datasheet #8
- Current page: 175 of 400
- Download datasheet (7Mb)
FIGURE 16-9:
FIGURE 16-10:
© 2007 Microchip Technology Inc.
Note 1: POSCNT register is shown in QEI x4 Update mode (POSCNT increments on every rising and every falling edge of
Note 1: The module design allows a quadrature frequency of up to F
T
QEA Pin
QEB Pin
QEA Input
QEB Input
CY
2: When POSCNT = MAXCNT, POSCNT is reset to ‘0’ on the next QEA rising edge. POSCNT is set to MAXCNT when
3: IC2QEIF is generated on Q4 rising edge.
4: Position counter is loaded with ‘0’ (which is a rollover event in this case) on POSCNT = MAXCNT.
5: Position counter is loaded with MAXCNT value (1527h) on underflow.
6: IC2QEIF must be cleared in software.
QEA
QEB
Count (+/-)
POSCNT
MAXCNT
IC2QEIF
UP/DOWN
Position
Counter Load
IC3DRIF
QEA and QEB input signals). Asynchronous external QEA and QEB inputs are synchronized to T
input sampling FF in the noise filter (see Figure 16-14).
POSCNT = 0 (when decrementing), which occurs on the next QEA falling edge.
(1)
T
GD
QEI INPUTS WHEN SAMPLED BY THE FILTER (DIVIDE RATIO = 1:1)
QEI MODULE RESET TIMING ON PERIOD MATCH
+1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1
MAXCNT=1527
= 3 T
CY
Note 2
Q1
Q4
Forward
(4)
(3)
T
QEI
PIC18F2331/2431/4331/4431
= 16 T
Q1
Preliminary
CY
(5)
(1)
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
Note 6
Note 2
Q1
Q4
(5)
(3)
Reverse
QEI
= F
CY
/16.
DS39616C-page 173
CY
clock by the
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