PIC18LF4480-I/ML Microchip Technology, PIC18LF4480-I/ML Datasheet - Page 360
![IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,LLCC,44PIN,PLASTIC](/photos/6/81/68122/150-44-qfn_sml.jpg)
PIC18LF4480-I/ML
Manufacturer Part Number
PIC18LF4480-I/ML
Description
IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,LLCC,44PIN,PLASTIC
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC18F2221-ISO.pdf
(46 pages)
3.PIC18F4480-IPT.pdf
(490 pages)
4.PIC18LF2480-ISP.pdf
(14 pages)
Specifications of PIC18LF4480-I/ML
Rohs Compliant
YES
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
CAN, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
36
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-QFN
Processor Series
PIC18LF
Core
PIC
Data Bus Width
8 bit
Data Ram Size
768 B
Interface Type
SPI, I2C, EUSART
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
25
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
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
10 bit, 11 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- PIC16F616T-ISL PDF datasheet
- PIC18F2221-ISO PDF datasheet #2
- PIC18F4480-IPT PDF datasheet #3
- PIC18LF2480-ISP PDF datasheet #4
- Current page: 360 of 490
- Download datasheet (9Mb)
primary oscillator mode is LP, XT, HS or HSPLL (Crystal-
Oscillator Start-up Timer delay; for these, Two-Speed
PIC18F2480/2580/4480/4580
25.3
The Two-Speed Start-up feature helps to minimize the
latency period from oscillator start-up to code execution
by allowing the microcontroller to use the INTRC
oscillator as a clock source until the primary clock
source is available. It is enabled by setting the IESO
Configuration bit.
Two-Speed Start-up should be enabled only if the
Based modes). Other sources do not require an
Start-up should be disabled.
When enabled, Resets and wake-ups from Sleep mode
cause the device to configure itself to run from the
internal oscillator block as the clock source, following
the time-out of the Power-up Timer after a Power-on
Reset is enabled. This allows almost immediate code
execution while the primary oscillator starts and the
OST is running. Once the OST times out, the device
automatically switches to PRI_RUN mode.
Because the OSCCON register is cleared on Reset
events, the INTOSC (or postscaler) clock source is not
initially available after a Reset event; the INTRC clock
is used directly at its base frequency. To use a higher
clock speed on wake-up, the INTOSC or postscaler
clock sources can be selected to provide a higher clock
speed by setting bits, IRCF<2:0>, immediately after
FIGURE 25-2:
DS39637D-page 360
Two-Speed Start-up
Note 1:
CPU Clock
Multiplexer
PLL Clock
Peripheral
Program
INTOSC
Counter
Output
OSC1
Clock
T
OST
TIMING TRANSITION FOR TWO-SPEED START-UP (INTOSC TO HSPLL)
Wake from Interrupt Event
= 1024 T
PC
OSC
; T
Q1
PLL
T
OST
= 2 ms (approx). These intervals are not shown to scale.
(1)
Q2
PC + 2
OSTS bit Set
T
Q3
PLL
(1)
Q4
Reset. For wake-ups from Sleep, the INTOSC or
postscaler clock sources can be selected by setting the
IRCF2:IRCF0 bits prior to entering Sleep mode.
In all other power-managed modes, Two-Speed Start-up
is not used. The device will be clocked by the currently
selected clock source until the primary clock source
becomes available. The setting of the IESO bit is
ignored.
25.3.1
While using the INTRC oscillator in Two-Speed Start-up,
the device still obeys the normal command sequences
for entering power-managed modes, including serial
SLEEP instructions (refer to Section 4.1.4 “Multiple
Sleep Commands”). In practice, this means that user
code can change the SCS<1:0> bit settings or issue
SLEEP instructions before the OST times out. This would
allow an application to briefly wake-up, perform routine
“housekeeping” tasks and return to Sleep before the
device starts to operate from the primary oscillator.
User code can also check if the primary clock source is
currently providing the device clocking by checking the
status of the OSTS bit (OSCCON<3>). If the bit is set,
the primary oscillator is providing the clock. Otherwise,
the internal oscillator block is providing the clock during
wake-up from Reset or Sleep mode.
Q1
1
Transition
2
Clock
n-1 n
SPECIAL CONSIDERATIONS FOR
USING TWO-SPEED START-UP
PC + 4
Q2
© 2009 Microchip Technology Inc.
Q3 Q4
Q1
PC + 6
Q2
Q3
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