PIC18F2455-I/SP Microchip Technology, PIC18F2455-I/SP Datasheet - Page 303
![IC PIC MCU FLASH 12KX16 28DIP](/photos/6/59/65908/150-28-dip_sml.jpg)
PIC18F2455-I/SP
Manufacturer Part Number
PIC18F2455-I/SP
Description
IC PIC MCU FLASH 12KX16 28DIP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PCM18XR1.pdf
(438 pages)
3.PIC18F2221-ISO.pdf
(46 pages)
4.PIC18F2455-ISO.pdf
(14 pages)
5.PIC18F2455-ISO.pdf
(8 pages)
6.PIC18F2455-ISO.pdf
(26 pages)
7.PIC18F2455-ISO.pdf
(426 pages)
8.PIC18LF2455-ISO.pdf
(430 pages)
Specifications of PIC18F2455-I/SP
Program Memory Type
FLASH
Program Memory Size
24KB (12K x 16)
Package / Case
28-DIP (0.300", 7.62mm)
Core Processor
PIC
Core Size
8-Bit
Speed
48MHz
Connectivity
I²C, SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
24
Eeprom Size
256 x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 10x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
2 KB
Interface Type
SPI/I2C/EAUSART
Maximum Clock Frequency
48 MHz
Number Of Programmable I/os
24
Number Of Timers
4
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, 52712-325, EWPIC18
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, ICE4000, DM163014, DV164136
Minimum Operating Temperature
- 40 C
On-chip Adc
10-ch x 10-bit
Package
28SPDIP
Device Core
PIC
Family Name
PIC18
Maximum Speed
48 MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
I3-DB18F4550 - BOARD DAUGHTER ICEPIC3DM163025 - PIC DEM FULL SPEED USB DEMO BRDDVA18XP280 - DEVICE ADAPTER 18F2220 PDIP 28LD
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PIC18F2455-I/SP
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
- PIC16F616T-ISL PDF datasheet
- PCM18XR1 PDF datasheet #2
- PIC18F2221-ISO PDF datasheet #3
- PIC18F2455-ISO PDF datasheet #4
- PIC18F2455-ISO PDF datasheet #5
- PIC18F2455-ISO PDF datasheet #6
- PIC18F2455-ISO PDF datasheet #7
- PIC18LF2455-ISO PDF datasheet #8
- Current page: 303 of 430
- Download datasheet (7Mb)
FIGURE 25-4:
25.4.3
By entering a power-managed mode, the clock
multiplexer selects the clock source selected by the
OSCCON register. Fail-Safe Clock Monitoring of the
power-managed
power-managed mode.
If an oscillator failure occurs during power-managed
operation, the subsequent events depend on whether
or not the oscillator failure interrupt is enabled. If
enabled (OSCFIF = 1), code execution will be clocked
by the INTOSC multiplexer. An automatic transition
back to the failed clock source will not occur.
If the interrupt is disabled, subsequent interrupts while
in Idle mode will cause the CPU to begin executing
instructions while being clocked by the INTOSC
source.
© 2007 Microchip Technology Inc.
Note:
Sample Clock
CM Output
FSCM INTERRUPTS IN
POWER-MANAGED MODES
OSCFIF
Device
Output
Clock
The device clock is normally at a much higher frequency than the sample clock. The relative frequencies in this
example have been chosen for clarity.
(Q)
clock
FSCM TIMING DIAGRAM
source
resumes
CM Test
PIC18F2455/2550/4455/4550
in
Preliminary
the
25.4.4
The FSCM is designed to detect oscillator failure at any
point after the device has exited Power-on Reset
(POR) or Low-Power Sleep mode. When the primary
device clock is either EC or INTRC, monitoring can
begin immediately following these events.
For oscillator modes involving a crystal or resonator
(HS, HSPLL or XT), the situation is somewhat different.
Since the oscillator may require a start-up time con-
siderably longer than the FCSM sample clock time, a
false clock failure may be detected. To prevent this, the
internal oscillator block is automatically configured as
the device clock and functions until the primary clock is
stable (the OST and PLL timers have timed out). This
is identical to Two-Speed Start-up mode. Once the
primary clock is stable, the INTRC returns to its role as
the FSCM source.
As noted in Section 25.3.1 “Special Considerations
for Using Two-Speed Start-up”, it is also possible to
select another clock configuration and enter an alternate
power-managed mode while waiting for the primary
clock to become stable. When the new power-managed
mode is selected, the primary clock is disabled.
Note:
CM Test
Oscillator
Failure
POR OR WAKE-UP FROM SLEEP
The same logic that prevents false oscilla-
tor failure interrupts on POR or wake from
Sleep will also prevent the detection of the
oscillator’s failure to start at all following
these events. This can be avoided by
monitoring the OSTS bit and using a
timing routine to determine if the oscillator
is taking too long to start. Even so, no
oscillator failure interrupt will be flagged.
Detected
Failure
CM Test
DS39632D-page 301
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