PIC16LF628-04I/P Microchip Technology, PIC16LF628-04I/P Datasheet - Page 47
![IC MCU FLASH 2KX14 COMP 18DIP](/photos/6/76/67657/18-dip_300mil__sml.jpg)
PIC16LF628-04I/P
Manufacturer Part Number
PIC16LF628-04I/P
Description
IC MCU FLASH 2KX14 COMP 18DIP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheet
1.PIC16F627-04P.pdf
(170 pages)
Specifications of PIC16LF628-04I/P
Program Memory Type
FLASH
Program Memory Size
3.5KB (2K x 14)
Package / Case
18-DIP (0.300", 7.62mm)
Core Processor
PIC
Core Size
8-Bit
Speed
4MHz
Connectivity
UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
16
Eeprom Size
128 x 8
Ram Size
224 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
PIC16LF
Core
PIC
Data Bus Width
8 bit
Data Ram Size
224 B
Interface Type
SCI/USART
Maximum Clock Frequency
4 MHz
Number Of Programmable I/os
16
Number Of Timers
3
Operating Supply Voltage
2 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
3rd Party Development Tools
52715-96, 52716-328, 52717-734
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DM163014, DM164120-4
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
6.3.1
The prescaler assignment is fully under software
control (i.e., it can be changed “on the fly” during
program execution). Use the instruction sequences,
shown in Example 6-1, when changing the prescaler
assignment from Timer0 to WDT, to avoid an
unintended device RESET.
EXAMPLE 6-1:
TABLE 6-1:
2003 Microchip Technology Inc.
01h
0Bh/8Bh/
10Bh/18Bh
81h, 181h
85h
Legend:
Note 1: Shaded bits are not used by TMR0 module.
Address
BCF
CLRWDT
CLRF
BSF
MOVLW
MOVWF
CLRWDT
MOVLW
MOVWF
BCF
2: Option is referred by OPTION_REG in MPLAB.
— = Unimplemented locations, read as ‘0’, u = unchanged, x = unknown
SWITCHING PRESCALER
ASSIGNMENT
TMR0
INTCON
OPTION
TRISA
STATUS, RP0
TMR0
STATUS, RP0
'00101111’b
OPTION_REG
'00101xxx’b
OPTION_REG
STATUS, RP0
Name
REGISTERS ASSOCIATED WITH TIMER0
(2)
CHANGING PRESCALER
(TIMER0→WDT)
Timer0 module register
TRISA7
RBPU
Bit 7
GIE
;Skip if already in
;Bank 0
;Clear WDT
;Clear TMR0 & Prescaler
;Bank 1
;These 3 lines
;(5, 6, 7)
;are required only
;if desired PS<2:0>
;are
;000 or 001
;Set Postscaler to
;desired WDT rate
;Return to Bank 0
INTEDG
TRISA6 TRISA5 TRISA4 TRISA3 TRISA2 TRISA1 TRISA0 1111 1111 1111 1111
Bit 6
PEIE
T0CS
Bit 5
T0IE
Preliminary
T0SE
Bit 4
INTE
Bit 3
RBIE
PSA
To change prescaler from the WDT to the TMR0
module use the sequence shown in Example 6-2. This
precaution must be taken even if the WDT is disabled.
EXAMPLE 6-2:
CLRWDT
BSF
MOVLW
MOVWF
BCF
Bit 2
T0IF
PS2
STATUS, RP0
b'xxxx0xxx' ;Select TMR0, new
OPTION_REG
STATUS, RP0
Bit 1
INTF
PS1
CHANGING PRESCALER
(WDT→TIMER0)
Bit 0
RBIF
PS0
PIC16F62X
;Clear WDT and
;prescaler
;prescale value and
;clock source
xxxx xxxx uuuu uuuu
0000 000x 0000 000u
1111 1111 1111 1111
Value on
POR
DS40300C-page 45
All Other
Value on
RESETS