PIC16F639 Microchip Technology Inc., PIC16F639 Datasheet - Page 44
![no-image](/images/manufacturer_photos/0/4/440/microchip_technology_inc__sml.jpg)
PIC16F639
Manufacturer Part Number
PIC16F639
Description
8/14-pin Flash-based, 8-bit Cmos Microcontrollers With Nanowatt Technology
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC16F639.pdf
(234 pages)
- Current page: 44 of 234
- Download datasheet (5Mb)
PIC12F635/PIC16F636/639
FIGURE 3-6:
DS41232D-page 42
HF
HFINTOSC
HFINTOSC
LFINTOSC
Note 1:
System Clock
System Clock
System Clock
IRCF <2:0>
IRCF <2:0>
IRCF <2:0>
HFINTOSC
HFINTOSC
HFINTOSC
LFINTOSC
LFINTOSC
LFINTOSC
LF
(1)
When going from LF to HF.
HFINTOSC
LFINTOSC (FSCM and WDT disabled)
LFINTOSC (Either FSCM or WDT enabled)
INTERNAL OSCILLATOR SWITCH TIMING
0
0
Start-up Time 2-cycle Sync
Start-up Time
0
0
0
2-cycle Sync
2-cycle Sync
0
LFINTOSC turns off unless WDT or FSCM is enabled
Running
© 2007 Microchip Technology Inc.
Running
Running
Related parts for PIC16F639
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![PIC-0903](/images/no-image3.png)
Part Number:
Description:
Photo IC(photodiode with signal processing)
Manufacturer:
KODENSHI KOREA CORP
Datasheet:
![PIC-1018SMB](/images/no-image3.png)
Part Number:
Description:
INFRARED RECEIVER MODULE
Manufacturer:
ETC
Datasheet:
![PIC-2058SMB](/images/no-image3.png)
Part Number:
Description:
INFRARED RECEIVER MODULE
Manufacturer:
ETC
Datasheet:
![PIC-2503](/images/no-image3.png)
Part Number:
Description:
Photo IC(photodiode with signal processing)
Manufacturer:
KODENSHI KOREA CORP
Datasheet:
![PIC12045S](/images/manufacturer_photos/0/3/374/kodenshi_tmb.jpg)
Part Number:
Description:
(PIC-1204x) OPTICAL-RECEIVER OUTPUT PHOTO IC
Manufacturer:
Kodenshi
Datasheet:
![TC1014-2.7VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1014-5.0VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1055-2.5VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1055-2.7VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1055-2.8VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1055-4.0VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet: