PIC18F4331-E/PT Microchip Technology, PIC18F4331-E/PT Datasheet - Page 31
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: 31 of 392
- Download datasheet (4Mb)
3.4
The EC and ECIO Oscillator modes require an external
clock source to be connected to the OSC1 pin. There is
no oscillator start-up time required after a Power-on
Reset or after an exit from Sleep mode.
In the EC Oscillator mode, the oscillator frequency
divided by 4 is available on the OSC2 pin. This signal
may be used for test purposes or to synchronize other
logic.
Oscillator mode.
FIGURE 3-4:
The ECIO Oscillator mode functions like the EC mode,
except that the OSC2 pin becomes an additional
general purpose I/O pin. The I/O pin becomes bit 6 of
PORTA (RA6).
for the ECIO Oscillator mode.
FIGURE 3-5:
2010 Microchip Technology Inc.
Clock from
Ext. System
Clock from
Ext. System
Figure 3-4
External Clock Input
F
OSC
RA6
Figure 3-5
shows the pin connections for the EC
/4
EXTERNAL CLOCK INPUT
OPERATION
(EC CONFIGURATION)
EXTERNAL CLOCK INPUT
OPERATION
(ECIO CONFIGURATION)
shows the pin connections
OSC1/CLKI
OSC2/CLKO
OSC1/CLKI
I/O (OSC2)
PIC18FXXXX
PIC18FXXXX
PIC18F2331/2431/4331/4431
3.5
For timing-insensitive applications, the “RC” and “RCIO”
device options offer additional cost savings. The actual
oscillator frequency is a function of several factors:
• Supply voltage
• Values of the external resistor (R
• Operating temperature
Given the same device, operating voltage and tempera-
ture, and component values, there will also be unit-to-unit
frequency variations. These are due to factors, such as:
• Normal manufacturing variation
• Difference in lead frame capacitance between
• Variations within the tolerance of limits of R
In the RC Oscillator mode
frequency divided by 4 is available on the OSC2 pin.
This signal may be used for test purposes or to
synchronize other logic.
FIGURE 3-6:
The RCIO Oscillator mode
the RC mode, except that the OSC2 pin becomes an
additional general purpose I/O pin. The I/O pin
becomes bit 6 of PORTA (RA6).
FIGURE 3-7:
Recommended values: 3 k R
Recommended values: 3 k R
(C
package types (especially for low C
and C
C
C
V
V
R
R
EXT
EXT
SS
SS
EXT
EXT
EXT
V
V
)
EXT
DD
DD
RC Oscillator
RA6
F
OSC
/4
RC OSCILLATOR MODE
RCIO OSCILLATOR MODE
OSC1
C
OSC1
C
OSC2/CLKO
I/O (OSC2)
EXT
EXT
(Figure
(Figure
> 20 pF
> 20 pF
EXT
EXT
EXT
100 k
100 k
3-6), the oscillator
3-7) functions like
DS39616D-page 31
PIC18FXXXX
EXT
PIC18FXXXX
) and capacitor
values)
Internal
Internal
Clock
Clock
EXT
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