PIC12F609-I/MF Microchip Technology, PIC12F609-I/MF Datasheet - Page 44
![no-image](/images/manufacturer_photos/0/4/439/microchip_technology_sml.jpg)
PIC12F609-I/MF
Manufacturer Part Number
PIC12F609-I/MF
Description
IC PIC MCU FLASH 1KX14 8-DFN
Manufacturer
Microchip Technology
Series
PIC® 12Fr
Datasheets
1.PIC12F609T-ISN.pdf
(212 pages)
2.PIC12F609T-ISN.pdf
(8 pages)
3.PIC12F609T-ISN.pdf
(26 pages)
4.PIC12F609T-ISN.pdf
(8 pages)
5.PIC12F615-EMF.pdf
(196 pages)
Specifications of PIC12F609-I/MF
Core Size
8-Bit
Program Memory Size
1.75KB (1K x 14)
Oscillator Type
Internal
Core Processor
PIC
Speed
20MHz
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
5
Program Memory Type
FLASH
Ram Size
64 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Package / Case
8-DFN
Controller Family/series
PIC12
No. Of I/o's
5
Ram Memory Size
64Byte
Cpu Speed
20MHz
No. Of Timers
2
No. Of Pwm
RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AC164324 - MODULE SKT FOR MPLAB 8DFN/16QFN
Eeprom Size
-
Data Converters
-
Connectivity
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- PIC12F609T-ISN PDF datasheet
- PIC12F609T-ISN PDF datasheet #2
- PIC12F609T-ISN PDF datasheet #3
- PIC12F609T-ISN PDF datasheet #4
- PIC12F615-EMF PDF datasheet #5
- Current page: 44 of 196
- Download datasheet (3Mb)
PIC12F609/615/12HV609/615
5.1.3
A single software programmable prescaler is available
for use with either Timer0 or the Watchdog Timer
(WDT), but not both simultaneously. The prescaler
assignment is controlled by the PSA bit of the OPTION
register. To assign the prescaler to Timer0, the PSA bit
must be cleared to a ‘0’.
There are 8 prescaler options for the Timer0 module
ranging from 1:2 to 1:256. The prescale values are
selectable via the PS<2:0> bits of the OPTION register.
In order to have a 1:1 prescaler value for the Timer0
module, the prescaler must be assigned to the WDT
module.
The prescaler is not readable or writable. When
assigned to the Timer0 module, all instructions writing to
the TMR0 register will clear the prescaler.
When the prescaler is assigned to WDT, a CLRWDT
instruction will clear the prescaler along with the WDT.
5.1.3.1
As a result of having the prescaler assigned to either
Timer0 or the WDT, it is possible to generate an
unintended device Reset when switching prescaler
values. When changing the prescaler assignment from
Timer0 to the WDT module, the instruction sequence
shown in Example 5-1, must be executed.
EXAMPLE 5-1:
DS41302B-page 42
BANKSEL
CLRWDT
CLRF
BANKSEL
BSF
CLRWDT
MOVLW
ANDWF
IORLW
MOVWF
SOFTWARE PROGRAMMABLE
PRESCALER
TMR0
TMR0
OPTION_REG
OPTION_REG,PSA
b’11111000’
OPTION_REG,W
b’00000101’
OPTION_REG
Switching Prescaler Between
Timer0 and WDT Modules
CHANGING PRESCALER
(TIMER0 → WDT)
;
;Clear WDT
;Clear TMR0 and
;prescaler
;
;Select WDT
;
;
;Mask prescaler
;bits
;Set WDT prescaler
;to 1:32
When changing the prescaler assignment from the
WDT to the Timer0 module, the following instruction
sequence must be executed (see Example 5-2).
EXAMPLE 5-2:
5.1.4
Timer0 will generate an interrupt when the TMR0
register overflows from FFh to 00h. The T0IF interrupt
flag bit of the INTCON register is set every time the
TMR0 register overflows, regardless of whether or not
the Timer0 interrupt is enabled. The T0IF bit must be
cleared in software. The Timer0 interrupt enable is the
T0IE bit of the INTCON register.
5.1.5
When Timer0 is in Counter mode, the synchronization
of the T0CKI input and the Timer0 register is accom-
plished by sampling the prescaler output on the Q2 and
Q4 cycles of the internal phase clocks. Therefore, the
high and low periods of the external clock source must
meet
Section 15.0 “Electrical Specifications”.
CLRWDT
BANKSEL OPTION_REG
MOVLW
ANDWF
IORLW
MOVWF
Note:
the
b’11110000’
OPTION_REG,W ;prescaler bits
b’00000011’
OPTION_REG
TIMER0 INTERRUPT
The Timer0 interrupt cannot wake the
processor from Sleep since the timer is
frozen during Sleep.
USING TIMER0 WITH AN
EXTERNAL CLOCK
timing
requirements
CHANGING PRESCALER
(WDT → TIMER0)
© 2008 Microchip Technology Inc.
;Clear WDT and
;prescaler
;
;Mask TMR0 select and
;Set prescale to 1:16
;
as
shown
in
Related parts for PIC12F609-I/MF
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![PIC12F609-I/SN](/images/manufacturer_photos/0/4/439/microchip_technology_tmb.jpg)
Part Number:
Description:
IC PIC MCU FLASH 1KX14 8SOIC
Manufacturer:
Microchip Technology
Datasheet:
![PIC12F609-E/MD](/images/manufacturer_photos/0/4/439/microchip_technology_tmb.jpg)
Part Number:
Description:
1.75KB Flash, 64B RAM, 6 I/O, 8MHz Internal Oscillator 8 DFN 4x4mm TUBE
Manufacturer:
Microchip Technology
Datasheet:
![PIC12F609-H/MD](/images/no-image3.png)
Part Number:
Description:
8-Pin, Flash-Based 8-Bit CMOS Microcontrollers
Manufacturer:
MICROCHIP [Microchip Technology]
Datasheet:
![PIC12F609-I/PQTP](/images/no-image3.png)
Part Number:
Description:
8-Pin Flash-Based, 8-Bit CMOS Microcontrollers
Manufacturer:
MICROCHIP [Microchip Technology]
Datasheet:
![PIC12F609-I/MS](/photos/6/59/65932/mfg_150_c04-111_ms_8-msop_tmb.jpg)
Part Number:
Description:
IC PIC MCU FLASH 1KX14 8MSOP
Manufacturer:
Microchip Technology
Datasheet:
![PIC12F609-I/P](/images/manufacturer_photos/0/4/439/microchip_technology_tmb.jpg)
Part Number:
Description:
IC PIC MCU FLASH 1KX14 8DIP
Manufacturer:
Microchip Technology
Datasheet:
![PIC12F609-E/P](/photos/16/0/160065/8-pdip-angled-300dpi-lyrd_tmb.jpg)
Part Number:
Description:
1.75KB Flash, 64B RAM, 6 I/O, 8MHz Internal Oscillator 8 PDIP .300in TUBE
Manufacturer:
Microchip Technology
Datasheet:
![PIC12F609-E/SN](/images/manufacturer_photos/0/4/439/microchip_technology_tmb.jpg)
Part Number:
Description:
1.75KB Flash, 64B RAM, 6 I/O, 8MHz Internal Oscillator 8 SOIC 3.90mm (.150") TUB
Manufacturer:
Microchip Technology
Datasheet:
![PIC12F609-E/MF](/images/manufacturer_photos/0/4/439/microchip_technology_tmb.jpg)
Part Number:
Description:
1.75KB Flash, 64B RAM, 6 I/O, 8MHz Internal Oscillator 8 DFN 3x3mm TUBE
Manufacturer:
Microchip Technology
Datasheet:
![PIC12F609-E/MS](/images/manufacturer_photos/0/4/439/microchip_technology_tmb.jpg)
Part Number:
Description:
1.75KB Flash, 64B RAM, 6 I/O, 8MHz Internal Oscillator 8 MSOP 3x3mm TUBE
Manufacturer:
Microchip Technology
Datasheet:
![PIC12F609-I/MD](/images/manufacturer_photos/0/4/439/microchip_technology_tmb.jpg)
Part Number:
Description:
1.75KB Flash, 64B RAM, 6 I/O, 8MHz Internal Oscillator 8 DFN 4x4mm TUBE
Manufacturer:
Microchip Technology
Datasheet:
![PIC12F1840-I/P](/photos/16/3/160349/pdip8_tmb.jpg)
Part Number:
Description:
7 KB Flash, 256 Bytes RAM, 32 MHz Int. Osc, 6 I/0, Enhanced Mid Range Core 8 PDI
Manufacturer:
Microchip Technology
Datasheet:
![PIC12LF1840-I/MF](/photos/16/0/160077/dfn8_tmb.jpg)
Part Number:
Description:
7 KB Flash, 256 Bytes RAM, 32 MHz Int. Osc, 6 I/0, Enhanced Mid Range Core, Nano
Manufacturer:
Microchip Technology
Datasheet:
![PIC12F1840-I/MF](/photos/16/0/160077/dfn8_tmb.jpg)
Part Number:
Description:
7 KB Flash, 256 Bytes RAM, 32 MHz Int. Osc, 6 I/0, Enhanced Mid Range Core 8 DFN
Manufacturer:
Microchip Technology
![PIC12F1840-I/SN](/photos/16/3/160347/soic8_tmb.jpg)
Part Number:
Description:
7 KB Flash, 256 Bytes RAM, 32 MHz Int. Osc, 6 I/0, Enhanced Mid Range Core 8 SOI
Manufacturer:
Microchip Technology