PIC18F4320-E/PT Microchip Technology, PIC18F4320-E/PT Datasheet - Page 26
![IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,TQFP,44PIN,PLASTIC](/photos/6/82/68251/c04-076_pt_sml.jpg)
PIC18F4320-E/PT
Manufacturer Part Number
PIC18F4320-E/PT
Description
IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,TQFP,44PIN,PLASTIC
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16C770-ISO.pdf
(8 pages)
3.PIC18F1320-ISS.pdf
(36 pages)
4.PIC18F2220-ISO.pdf
(394 pages)
5.PIC18F2220-ISO.pdf
(6 pages)
6.PIC18F2220-ISO.pdf
(6 pages)
7.PIC18F2220-ISO.pdf
(8 pages)
8.PIC18F2220-ISO.pdf
(6 pages)
9.PIC18F2220-ISO.pdf
(6 pages)
Specifications of PIC18F4320-E/PT
Rohs Compliant
YES
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
36
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 13x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F4320-E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC16C770-ISO PDF datasheet #2
- PIC18F1320-ISS PDF datasheet #3
- PIC18F2220-ISO PDF datasheet #4
- PIC18F2220-ISO PDF datasheet #5
- PIC18F2220-ISO PDF datasheet #6
- PIC18F2220-ISO PDF datasheet #7
- PIC18F2220-ISO PDF datasheet #8
- PIC18F2220-ISO PDF datasheet #9
- Current page: 26 of 394
- Download datasheet (7Mb)
PIC18F2220/2320/4220/4320
2.6.3
The internal oscillator block is calibrated at the factory
to produce an INTRC output frequency of approxi-
mately 31 kHz. (See parameters F20 and F21 in
Table 26-8.)
The INTRC frequency can be adjusted two ways:
• If TUNSEL (OSCTUN2<7>) is clear –
• If TUNSEL (OSCTUN2<7>) is set – TUN5:TUN1
REGISTER 2-2:
DS39599G-page 24
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7
bit 6
bit 5-1
bit 0
TUN5:TUN1 in OSCTUNE<5:1> adjusts the
INTRC clock frequency and also can adjust the
INTOSC clock frequency. (See Register 2-1,
OSCTUNE.)
in OSCTUN2<5:1> adjusts the INTRC clock fre-
quency without affecting the INTOSC frequency.
(See Register 2-2, OSCTUN2.)
TUNSEL
R/W-0
OSCTUN2 REGISTER
TUNSEL: Enables tuning of INTRC using OCSTUN2<5:1>
1 = INTRC adjusted by OSCTUN2<5:1>
0 = INTRC adjusted by OSCTUNE<5:1>
Unimplemented: Read as ‘0’
TUN<5:1>: Frequency Tuning bits – Adjusts the frequency of INTRC when TUNSEL is set
011111 = Maximum frequency
•
•
000001
000000 = Center frequency. Oscillator module is running at the calibrated frequency.
111111
•
•
100000 = Minimum frequency
TUN<0>: A placeholder with no effect on the INTRC frequency. Provided to facilitate incrementation
and decrementation of the OSCTUN2 register and adjustment of the INTRC frequency.
U-0
—
OSCTUN2: INTRC OSCILLATOR TUNING REGISTER
W = Writable bit
‘1’ = Bit is set
R/W-0
TUN5
•
•
•
•
R/W-0
TUN4
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-0
TUN3
In OSCTUN2, the OSCTUN2<0> bit has no effect, but
is readable and writable, enabling changes of the
INTRC frequency using two increment or decrement
instructions.
When the OSCTUN2 register is modified, the INTRC
frequency will begin shifting to the new frequency, and
will stabilize at the new frequency within 100 μs. Code
execution continues during this shift.
There is no indication when the shift occurs. Operation
of features that depend on the INTRC clock source fre-
quency also will be affected by the change in fre-
quency. This includes the WDT, Fail-Safe Clock
Monitor and peripherals.
R/W-0
TUN2
© 2007 Microchip Technology Inc.
x = Bit is unknown
R/W-0
TUN1
R/W-0
TUN0
bit 0
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