PIC18F4585-I/P Microchip Technology, PIC18F4585-I/P Datasheet - Page 110
PIC18F4585-I/P
Manufacturer Part Number
PIC18F4585-I/P
Description
IC MCU FLASH 24KX16 40DIP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC18F2221-ISO.pdf
(46 pages)
3.PIC18F4585-IPT.pdf
(482 pages)
4.PIC18F4585-IPT.pdf
(14 pages)
5.PIC18F4585-IPT.pdf
(8 pages)
6.PIC18F4585-IPT.pdf
(12 pages)
7.PIC18F4585-IPT.pdf
(4 pages)
8.PIC18F2585-ISP.pdf
(18 pages)
Specifications of PIC18F4585-I/P
Core Size
8-Bit
Program Memory Size
48KB (24K x 16)
Core Processor
PIC
Speed
40MHz
Connectivity
CAN, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
36
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
3.25K x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
40-DIP (0.600", 15.24mm)
Controller Family/series
PIC18
No. Of I/o's
36
Eeprom Memory Size
1024Byte
Ram Memory Size
3.25KB
Cpu Speed
40MHz
No. Of Timers
4
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
3.25 KB
Interface Type
I2C, SPI, EUSART
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
44
Number Of Timers
1 x 8
Operating Supply Voltage
4.2 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, ICE4000, DV164136, DM163011
Minimum Operating Temperature
- 40 C
On-chip Adc
11 bit
Package
40PDIP
Device Core
PIC
Family Name
PIC18
Maximum Speed
40 MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
I3-DB18F4680 - BOARD DAUGHTER ICEPIC3DVA18XP400 - DEVICE ADAPTER 18F4220 PDIP 40LD444-1001 - DEMO BOARD FOR PICMICRO MCUACICE0206 - ADAPTER MPLABICE 40P 600 MIL
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F4585-I/P
Manufacturer:
Microchip Technology
Quantity:
135
Part Number:
PIC18F4585-I/P
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
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Quantity:
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Part Number:
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Quantity:
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- PIC16F616T-ISL PDF datasheet
- PIC18F2221-ISO PDF datasheet #2
- PIC18F4585-IPT PDF datasheet #3
- PIC18F4585-IPT PDF datasheet #4
- PIC18F4585-IPT PDF datasheet #5
- PIC18F4585-IPT PDF datasheet #6
- PIC18F4585-IPT PDF datasheet #7
- PIC18F2585-ISP PDF datasheet #8
- Current page: 110 of 482
- Download datasheet (9Mb)
PIC18F2585/2680/4585/4680
7.6
Data EEPROM memory has its own code-protect bits in
Configuration
operations are disabled if code protection is enabled.
The microcontroller itself can both read and write to the
internal Data EEPROM, regardless of the state of the
code-protect Configuration bit. Refer to Section 24.0
“Special Features of the CPU” for additional
information.
7.7
There are conditions when the device may not want to
write to the data EEPROM memory. To protect against
spurious EEPROM writes, various mechanisms have
been implemented. On power-up, the WREN bit is
cleared. In addition, writes to the EEPROM are blocked
during
parameter 33).
The write initiate sequence and the WREN bit together
help prevent an accidental write during brown-out,
power glitch or software malfunction.
EXAMPLE 7-3:
DS39625C-page 108
Loop
Operation During Code-Protect
Protection Against Spurious Write
the
CLRF
CLRF
BCF
BCF
BCF
BSF
BSF
MOVLW
MOVWF
MOVLW
MOVWF
BSF
BTFSC
BRA
INCFSZ
BRA
INCFSZ
BRA
BCF
BSF
Power-up
Words.
EEADR
EEADRH
EECON1, CFGS
EECON1, EEPGD
INTCON, GIE
EECON1, WREN
EECON1, RD
55h
EECON2
0AAh
EECON2
EECON1, WR
EECON1, WR
$-2
EEADR, F
LOOP
EEADRH, F
LOOP
EECON1, WREN
INTCON, GIE
DATA EEPROM REFRESH ROUTINE
External
Timer
read
period
and
(T
; Start at address 0
;
; Set for memory
; Set for Data EEPROM
; Disable interrupts
; Enable writes
; Loop to refresh array
; Read current address
;
; Write 55h
;
; Write 0AAh
; Set WR bit to begin write
; Wait for write to complete
; Increment address
; Not zero, do it again
; Increment the high address
; Not zero, do it again
; Disable writes
; Enable interrupts
PWRT
write
Preliminary
,
7.8
The data EEPROM is a high endurance, byte address-
able array that has been optimized for the storage of
frequently
variables or other data that are updated often).
Frequently changing values will typically be updated
more often than specification D124. If this is not the
case, an array refresh must be performed. For this
reason, variables that change infrequently (such as
constants, IDs, calibration, etc.) should be stored in
Flash program memory.
A simple data EEPROM refresh routine is shown in
Example 7-3.
Note:
Using the Data EEPROM
If data EEPROM is only used to store
constants and/or data that changes rarely,
an array refresh is likely not required. See
specification D124.
changing
© 2007 Microchip Technology Inc.
information
(e.g.,
program
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