PIC18F2585-I/SP Microchip Technology, PIC18F2585-I/SP Datasheet - Page 337
![IC MCU FLASH 24KX16 28-DIP](/photos/6/59/65908/150-28-dip_sml.jpg)
PIC18F2585-I/SP
Manufacturer Part Number
PIC18F2585-I/SP
Description
IC MCU FLASH 24KX16 28-DIP
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 PIC18F2585-I/SP
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
25
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 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-DIP (0.300", 7.62mm)
Controller Family/series
PIC18
No. Of I/o's
25
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
28
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, DM163011, DV164136
Minimum Operating Temperature
- 40 C
On-chip Adc
8
Package
28SPDIP
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 ICEPIC3DVA18XP280 - DEVICE ADAPTER 18F2220 PDIP 28LD
Lead Free Status / Rohs Status
Details
- 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: 337 of 482
- Download datasheet (9Mb)
23.9.2
As already mentioned, the Time Quanta is a fixed unit
derived from the oscillator period and baud rate
prescaler. Its relationship to T
Rate is shown in Example 23-6.
EXAMPLE 23-6:
The frequencies of the oscillators in the different nodes
must be coordinated in order to provide a system wide
specified nominal bit time. This means that all oscilla-
tors must have a T
It should also be noted that although the number of T
is programmable from 4 to 25, the usable minimum is
8 T
8 T
© 2007 Microchip Technology Inc.
T
T
Nominal Bit Rate (bits/s) = 1/T
This frequency (F
frequency used. If, for example, a 10 MHz external
signal is used along with a PLL, then the effective
frequency will be 4 x 10 MHz which equals 40 MHz.
CASE 1:
For F
Nominal Bit Time = 8 T
T
T
Nominal Bit Rate = 1/10
CASE 2:
For F
Nominal Bit Time = 8 T
T
T
Nominal Bit Rate = 1/1.6 * 10
CASE 3:
For F
Nominal Bit Time = 25 T
T
T
Nominal Bit Rate = 1/1.28 * 10
Q
BIT
Q
BIT
Q
BIT
Q
BIT
Q
Q
= (2 * 1)/16 = 0.125 μs (125 ns)
= (2 * 2)/20 = 0.2 μs (200 ns)
= (2 * 64)/25 = 5.12 μs
. There is no assurance that a bit time of less than
(μs) = (2 * (BRP + 1))/F
in length will operate correctly.
(μs) = T
= 8 * 0.125 = 1 μs (10
= 8 * 0.2 = 1.6 μs (1.6 * 10
= 25 * 5.12 = 128 μs (1.28 * 10
OSC
OSC
OSC
= 16 MHz, BRP<5:0> = 00h and
= 20 MHz, BRP<5:0> = 01h and
= 25 MHz, BRP<5:0> = 3Fh and
TIME QUANTA
Q
(μs) * number of T
OSC
OSC
CALCULATING T
NOMINAL BIT RATE AND
NOMINAL BIT TIME
that is an integral divisor of T
-6
Q
Q
) refers to the effective
= 10
Q
:
:
-6
OSC
:
s)
-6
BIT
6
-4
BIT
s = 625,000 bits/s
(MHz)
-6
bits/s (1 Mb/s)
= 7813 bits/s
s)
Q
and the Nominal Bit
per bit interval
-4
(625 Kb/s)
(7.8 Kb/s)
s)
Q
,
PIC18F2585/2680/4585/4680
Preliminary
Q
Q
.
23.9.3
This part of the bit time is used to synchronize the
various CAN nodes on the bus. The edge of the input
signal is expected to occur during the sync segment.
The duration is 1 T
23.9.4
This part of the bit time is used to compensate for phys-
ical delay times within the network. These delay times
consist of the signal propagation time on the bus line
and the internal delay time of the nodes. The length of
the Propagation Segment can be programmed from
1 T
23.9.5
The phase buffer segments are used to optimally
locate the sampling point of the received bit within the
nominal bit time. The sampling point occurs between
Phase Segment 1 and Phase Segment 2. These
segments can be lengthened or shortened by the
resynchronization process. The end of Phase Segment
1 determines the sampling point within a bit time.
Phase Segment 1 is programmable from 1 T
in duration. Phase Segment 2 provides delay before
the next transmitted data transition and is also
programmable from 1 T
due to IPT requirements, the actual minimum length of
Phase Segment 2 is 2 T
equal to the greater of Phase Segment 1 or the
Information Processing Time (IPT). The sampling point
should be as late as possible or approximately 80% of
the bit time.
23.9.6
The sample point is the point of time at which the bus
level is read and the value of the received bit is
determined. The sampling point occurs at the end of
Phase Segment 1. If the bit timing is slow and contains
many T
the bus line at the sample point. The value of the
received bit is determined to be the value of the major-
ity decision of three values. The three samples are
taken at the sample point and twice before, with a time
of T
23.9.7
The Information Processing Time (IPT) is the time
segment starting at the sample point that is reserved
for calculation of the subsequent bit level. The CAN
specification defines this time to be less than or equal
to 2 T
define this time to be 2 T
must be at least 2 T
Q
Q
to 8 T
/2 between each sample.
Q
Q
. The PIC18F2585/2680/4585/4680 devices
, it is possible to specify multiple sampling of
Q
SYNCHRONIZATION SEGMENT
PROPAGATION SEGMENT
PHASE BUFFER SEGMENTS
SAMPLE POINT
INFORMATION PROCESSING TIME
by setting the PRSEG2:PRSEG0 bits.
Q
Q
.
long.
Q
Q
to 8 T
Q
, or it may be defined to be
. Thus, Phase Segment 2
Q
in duration. However,
DS39625C-page 335
Q
to 8 T
Q
Related parts for PIC18F2585-I/SP
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![PIC18F258-I/SP](/photos/6/59/65908/150-28-dip_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 16KX16 CAN 28DIP
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F258-I/SO](/photos/6/59/65909/150-28-soic_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 16KX16 CAN 28SOIC
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F258](/images/no-image3.png)
Part Number:
Description:
High Performance, 28/40-Pin Enhanced FLASH Microcontrollers with CAN
Manufacturer:
MICROCHIP [Microchip Technology]
Datasheet:
![PIC18F258-I/SOG](/photos/6/59/65909/150-28-soic_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 16KX16 28SOIC
Manufacturer:
Microchip Technology
![PIC18F258-E/SP](/photos/6/59/65908/150-28-dip_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 16KX16 W/CAN 28DIP
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F258-E/SO](/photos/6/59/65909/150-28-soic_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 16KX16 CAN 28-SOIC
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F6393T-I/PT](/photos/6/81/68123/c04-066_pf_tmb.jpg)
Part Number:
Description:
PIC18F With 128-segment LCD Driver And 12-bit ADC, 8KB Flash, 768B RAM, CCP, MSS
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F6493T-I/PT](/photos/6/81/68123/c04-066_pf_tmb.jpg)
Part Number:
Description:
PIC18F With 128-segment LCD Driver And 12-bit ADC, 16KB Flash, 768B RAM, CCP, MS
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F8393T-I/PT](/images/manufacturer_photos/0/4/439/microchip_technology_tmb.jpg)
Part Number:
Description:
PIC18F With 192-segment LCD Driver And 12-bit ADC, 8KB Flash, 768B RAM, CCP, MSS
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F8493T-I/PT](/images/manufacturer_photos/0/4/439/microchip_technology_tmb.jpg)
Part Number:
Description:
PIC18F With 192-segment LCD Driver And 12-bit ADC, 16KB Flash, 768B RAM, CCP, MS
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F6585-I/L](/photos/16/12/161282/68-plcc-large-300dpi-lyrd_tmb.jpg)
Part Number:
Description:
Microcontrollers (MCU) 48KB 3328 RAM 52 I/O
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F6680-I/L](/photos/16/12/161282/68-plcc-large-300dpi-lyrd_tmb.jpg)
Part Number:
Description:
Microcontrollers (MCU) 64KB 3328 RAM 52 I/O
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F65K90T-I/MR](/photos/16/3/160368/qfn64_tmb.jpg)
Part Number:
Description:
32kB Flash, 2kB RAM, 1kB EE, NanoWatt XLP, LCD 64 QFN 9x9x0.9mm T/R
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F65K90T-I/PT](/photos/16/3/160367/tqfp-64_tmb.jpg)
Part Number:
Description:
32kB Flash, 2kB RAM, 1kB EE, NanoWatt XLP, LCD 64 TQFP 10x10x1mm T/R
Manufacturer:
Microchip Technology
Datasheet:
![PIC18F87K90T-I/PT](/photos/40/31/403173/tqfp-80_tmb.jpg)
Part Number:
Description:
128kB Flash, 4kB RAM, 1kB EE, 16MIPS, NanoWatt XLP, LCD, 5V 80 TQFP 12x12x1mm T/
Manufacturer:
Microchip Technology
Datasheet: