PIC12CE519/JW Microchip Technology, PIC12CE519/JW Datasheet - Page 176
![IC MCU EPROM 1KX12 W/EE 8CDIP](/photos/12/23/122362/pic12ce519_jw_sml.jpg)
PIC12CE519/JW
Manufacturer Part Number
PIC12CE519/JW
Description
IC MCU EPROM 1KX12 W/EE 8CDIP
Manufacturer
Microchip Technology
Series
PIC® 12Cr
Datasheets
1.PIC16F688T-ISL.pdf
(688 pages)
2.PIC12C508A-04SM.pdf
(113 pages)
3.PIC12C508A-04SM.pdf
(4 pages)
4.PIC12CE518-04SM.pdf
(16 pages)
Specifications of PIC12CE519/JW
Core Processor
PIC
Core Size
8-Bit
Speed
4MHz
Peripherals
POR, WDT
Number Of I /o
5
Program Memory Size
1.5KB (1K x 12)
Program Memory Type
EPROM, UV
Eeprom Size
16 x 8
Ram Size
41 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
8-CDIP (0.300", 7.62mm) Window
For Use With
ISPICR1 - ADAPTER IN-CIRCUIT PROGRAMMINGDVA12XP080 - ADAPTER DEVICE FOR MPLAB-ICEAC124001 - MODULE SKT PROMATEII 8DIP/SOIC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Data Converters
-
Connectivity
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PIC12CE519/JW
Manufacturer:
MICROCH
Quantity:
20 000
- PIC16F688T-ISL PDF datasheet
- PIC12C508A-04SM PDF datasheet #2
- PIC12C508A-04SM PDF datasheet #3
- PIC12CE518-04SM PDF datasheet #4
- Current page: 176 of 688
- Download datasheet (3Mb)
PICmicro MID-RANGE MCU FAMILY
11.6.1
DS31011A-page 11-8
Lines 2 and 3 do
NOT have to be
included if the final
desired prescale
value is other than
1:1. If 1:1 is final
desired value, then a
temporary prescale
value is set in lines 2
and 3 and the final
prescale value will
be set in lines 10
and 11.
Switching Prescaler Assignment
The prescaler assignment is fully under software control, i.e., it can be changed “on the fly” during
program execution.
In
final desired prescaler is other then 1:1. If the final prescaler value is to be 1:1, then a temporary
prescale value is set (other than 1:!), and the final prescale value is set in the last modification of
OPTION_REG.
Example 11-1: Changing Prescaler (Timer0 WDT)
To change prescaler from the WDT to the Timer0 module use the sequence shown in
Example
Example 11-2: Changing Prescaler (WDT Timer0)
1)
2)
3)
4)
5)
6)
7)
8)
9)
10) MOVLW
11) MOVWF
12) BCF
Example
BSF
MOVLW
MOVWF
BCF
CLRF
BSF
MOVLW
MOVWF
CLRWDT
CLRWDT
BSF
MOVLW
MOVWF
BCF
11-2.
Note:
11-1, the first modification of the OPTION_REG does not need to be included if the
STATUS, RP0
b'xx0x0xxx'
OPTION_REG
STATUS, RP0
TMR0
STATUS, RP1
b'xxxx1xxx'
OPTION_REG
b'xxxx1xxx'
OPTION_REG
STATUS, RP0
STATUS, RP0
b'xxxx0xxx'
OPTION_REG
STATUS, RP0
To avoid an unintended device RESET, the following instruction sequence
(shown in
assignment from Timer0 to the WDT. This sequence must be followed even if
the WDT is disabled.
Example
;Bank1
;Select clock source and prescale value of
;other than 1:1
;Bank0
;Clear TMR0 and prescaler
;Bank1
;Select WDT, do not change prescale value
;
;Clears WDT and prescaler
;Select new prescale value and WDT
;
;Bank0
; Clear WDT and prescaler
; Bank1
; Select TMR0, new prescale
; value and clock source
; Bank0
11-1) must be executed when changing the prescaler
1997 Microchip Technology Inc.
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