PIC16F747 Microchip Technology Inc., PIC16F747 Datasheet - Page 38
PIC16F747
Manufacturer Part Number
PIC16F747
Description
28/40/44-pin, 8-bit Cmos Flash Microcontrollers With 10-bit A/d And Nanowatt Technology
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC16F747.pdf
(276 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F747-E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Company:
Part Number:
PIC16F747-I/ML
Manufacturer:
MICRON
Quantity:
1 001
Company:
Part Number:
PIC16F747-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
PIC16F747-I/PT
Manufacturer:
MICROCH
Quantity:
20 000
Company:
Part Number:
PIC16F747T-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- Current page: 38 of 276
- Download datasheet (6Mb)
PIC16F7X7
4.5.1
Using the internal oscillator as the clock source can
eliminate the need for up to two external oscillator pins,
after which it can be used for digital I/O. Two distinct
configurations are available:
• In INTIO1 mode, the OSC2 pin outputs F
• In INTIO2 mode, OSC1 functions as RA7 and
REGISTER 4-1:
DS30498C-page 36
while OSC1 functions as RA7 for digital input and
output.
OSC2 functions as RA6, both for digital input and
output.
bit 7-6
bit 5-0
INTRC MODES
OSCTUNE: OSCILLATOR TUNING REGISTER (ADDRESS 90h)
Unimplemented: Read as ‘0’
TUN<5:0>: Frequency Tuning bits
011111 = Maximum frequency
011110 =
•
•
•
000001 =
000000 = Center frequency. Oscillator module is running at the calibrated frequency.
111111 =
•
•
•
100000 = Minimum frequency
bit 7
Legend:
R = Readable bit
-n = Value at POR
U-0
—
U-0
—
OSC
/4,
R/W-0
TUN5
W = Writable bit
‘1’ = Bit is set
R/W-0
TUN4
frequency. The INTRC clock will reach the new
frequency
4.5.2
The internal oscillator’s output has been calibrated at the
factory but can be adjusted in the application. This is
done by writing to the OSCTUNE register (Register 4-1).
The tuning sensitivity is constant throughout the tuning
range. The OSCTUNE register has a tuning range of
±12.5%.
When the OSCTUNE register is modified, the INTOSC
and INTRC frequencies will begin shifting to the new
8 * 32 s = 256 s); the INTOSC clock will stabilize
within 1 ms. Code execution continues during this shift.
There is no indication that the shift has occurred. Oper-
ation of features that depend on the 31.25 kHz INTRC
clock source frequency, such as the WDT, Fail-Safe
Clock Monitor and peripherals, will also be affected by
the change in frequency.
R/W-0
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
TUN3
OSCTUNE REGISTER
within
8 clock
R/W-0
TUN2
2004 Microchip Technology Inc.
cycles
x = Bit is unknown
R/W-0
TUN1
(approximately
R/W-0
TUN0
bit 0
Related parts for PIC16F747
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Photo IC(photodiode with signal processing)
Manufacturer:
KODENSHI KOREA CORP
Datasheet:
Part Number:
Description:
INFRARED RECEIVER MODULE
Manufacturer:
ETC
Datasheet:
Part Number:
Description:
INFRARED RECEIVER MODULE
Manufacturer:
ETC
Datasheet:
Part Number:
Description:
Photo IC(photodiode with signal processing)
Manufacturer:
KODENSHI KOREA CORP
Datasheet:
Part Number:
Description:
(PIC-1204x) OPTICAL-RECEIVER OUTPUT PHOTO IC
Manufacturer:
Kodenshi
Datasheet:
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet: