PIC18LF2523-I/SP Microchip Technology, PIC18LF2523-I/SP Datasheet - Page 38
![IC PIC MCU FLASH 16KX16 28-DIP](/photos/6/59/65908/150-28-dip_sml.jpg)
PIC18LF2523-I/SP
Manufacturer Part Number
PIC18LF2523-I/SP
Description
IC PIC MCU FLASH 16KX16 28-DIP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC18F2221-ISO.pdf
(46 pages)
2.PIC18F2423-ISP.pdf
(54 pages)
3.PIC18F2423-ISP.pdf
(8 pages)
4.PIC18F2423-ISP.pdf
(34 pages)
5.PIC18F2523-ISO.pdf
(392 pages)
Specifications of PIC18LF2523-I/SP
Core Size
8-Bit
Program Memory Size
32KB (16K x 16)
Core Processor
PIC
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
25
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 10x12b
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
256Byte
Ram Memory Size
1.5KB
Cpu Speed
40MHz
No. Of Timers
4
Package
28SPDIP
Device Core
PIC
Family Name
PIC18
Maximum Speed
40 MHz
Operating Supply Voltage
2.5|3.3|5 V
Data Bus Width
8 Bit
Number Of Programmable I/os
25
Interface Type
I2C/SPI/USART
On-chip Adc
10-chx12-bit
Number Of Timers
4
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- PIC18F2221-ISO PDF datasheet
- PIC18F2423-ISP PDF datasheet #2
- PIC18F2423-ISP PDF datasheet #3
- PIC18F2423-ISP PDF datasheet #4
- PIC18F2523-ISO PDF datasheet #5
- Current page: 38 of 392
- Download datasheet (7Mb)
PIC18F2423/2523/4423/4523
If the IRCF bits and the INTSRC bit are all clear, the
INTOSC output is not enabled and the IOFS bit will
remain clear; there will be no indication of the current
clock source. The INTRC source is providing the
device clocks.
If the IRCF bits are changed from all clear (thus,
enabling the INTOSC output) or if INTSRC is set, the
IOFS bit becomes set after the INTOSC output
becomes stable. Clocks to the device continue while
the INTOSC source stabilizes after an interval of
T
If the IRCF bits were previously at a non-zero value, or
if INTSRC was set before setting SCS1 and the
INTOSC source was already stable, the IOFS bit will
remain set.
FIGURE 3-3:
FIGURE 3-4:
DS39755B-page 36
IOBST
.
Peripheral
Note 1: Clock transition typically occurs within 2-4 T
Program
Counter
INTRC
OSC1
Clock
Clock
Note1: T
CPU
CPU Clock
Multiplexer
Peripheral
PLL Clock
Program
INTOSC
Counter
Output
2: Clock transition typically occurs within 2-4 T
OSC1
Clock
Q1
OST
SCS1:SCS0 bits Changed
Q2
TRANSITION TIMING TO RC_RUN MODE
TRANSITION TIMING FROM RC_RUN MODE TO PRI_RUN MODE
= 1024 T
PC
Q3
Q4
OSC
Q1
; T
PLL
Q1
1
T
OST
= 2 ms (approx). These intervals are not shown to scale.
(1)
PC
2
Q2
Clock Transition
3
OSC
T
OSTS bit Set
Q3
PLL (1)
Preliminary
.
OSC
.
(1)
PC + 2
n-1
Q4
On transitions from RC_RUN mode to PRI_RUN mode,
the device continues to be clocked from the INTOSC
multiplexer while the primary clock is started. When the
primary clock becomes ready, a clock switch to the pri-
mary clock occurs (see Figure 3-4). When the clock
switch is complete, the IOFS bit is cleared, the OSTS
bit is set and the primary clock is providing the device
clock. The IDLEN and SCS bits are not affected by the
switch. The INTRC source will continue to run if either
the WDT or the Fail-Safe Clock Monitor is enabled.
n
Q1
1
Transition
2
Clock
n-1 n
(2)
Q2
PC + 2
Q3
Q2
Q4
© 2007 Microchip Technology Inc.
Q3 Q4
Q1
Q1
Q2
PC + 4
PC + 4
Q2
Q3
Q3
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