PIC18LF24K22-I/SS Microchip Technology, PIC18LF24K22-I/SS Datasheet - Page 36
![IC PIC MCU 16KB FLASH 28SSOP](/photos/19/6/190632/4696165_sml.jpg)
PIC18LF24K22-I/SS
Manufacturer Part Number
PIC18LF24K22-I/SS
Description
IC PIC MCU 16KB FLASH 28SSOP
Manufacturer
Microchip Technology
Series
PIC® XLP™ 18Fr
Specifications of PIC18LF24K22-I/SS
Core Size
8-Bit
Program Memory Size
16KB (8K x 16)
Core Processor
PIC
Speed
64MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
24
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 19x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-SSOP (0.200", 5.30mm Width)
Controller Family/series
PIC18
No. Of I/o's
25
Eeprom Memory Size
256Byte
Ram Memory Size
768Byte
Cpu Speed
64MHz
No. Of Timers
7
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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PIC18(L)F2X/4XK22
2.4.4
The external Resistor-Capacitor (RC) modes support
the use of an external RC circuit. This allows the
designer maximum flexibility in frequency choice while
keeping costs to a minimum when clock accuracy is not
required. There are two modes: RC and RCIO.
2.4.4.1
In RC mode, the RC circuit connects to OSC1. OSC2/
CLKOUT outputs the RC oscillator frequency divided
by 4. This signal may be used to provide a clock for
external circuitry, synchronization, calibration, test or
other application requirements.
external RC mode connections.
FIGURE 2-8:
2.4.4.2
In RCIO mode, the RC circuit is connected to OSC1.
OSC2 becomes a general purpose I/O pin.
The RC oscillator frequency is a function of the supply
voltage, the resistor (R
and the operating temperature. Other factors affecting
the oscillator frequency are:
• input threshold voltage variation
• component tolerances
• packaging variations in capacitance
The user also needs to take into account variation due
to tolerance of external RC components used.
DS41412D-page 36
R
C
Note 1:
V
Recommended values: 10 k R
EXT
EXT
SS
V
F
I/O
DD
OSC
(2)
2:
/4 or
EXTERNAL RC MODES
Alternate pin functions are listed in
Section 1.0 “Device
Output depends upon RC or RCIO clock mode.
RC Mode
RCIO Mode
OSC1/CLKIN
OSC2/CLKOUT
EXT
EXTERNAL RC MODES
C
EXT
) and capacitor (C
> 20 pF
PIC
Overview”.
Figure 2-8
EXT
®
(1)
MCU
100 k
EXT
shows the
Internal
Clock
) values
Preliminary
2.5
The oscillator module has three independent, internal
oscillators that can be configured or selected as the
system clock source.
1.
2.
3.
The system clock speed can be selected via software
using the Internal Oscillator Frequency select bits
IRCF<2:0> of the OSCCON register.
The system clock can be selected between external or
internal clock sources via the System Clock Selection
(SCS<1:0>) bits of the OSCCON register. See
Section 2.9 “Clock Switching”
2.5.1
Two of the clock modes selectable with the
FOSC<3:0> bits of the CONFIG1H Configuration
register configure the internal oscillator block as the
primary oscillator. Mode selection determines whether
OSC2/CLKOUT/RA7 will be configured as general
purpose I/O (RA7) or F
modes, OSC1/CLKIN/RA7 is configured as general
purpose I/O. See
the CPU”
The CLKOUT signal may be used to provide a clock for
external circuitry, synchronization, calibration, test or
other application requirements.
The
Oscillator) is factory calibrated and operates at
16 MHz. The frequency of the HFINTOSC can
be
OSCTUNE register
The MFINTOSC (Medium-Frequency Internal
Oscillator) is factory calibrated and operates
at 500 kHz. The frequency of the MFINTOSC
can be user-adjusted via software using the
OSCTUNE register
The
Oscillator) is factory calibrated and operates at
31.25 kHz. The LFINTOSC cannot be user-
adjusted, but is designed to be stable over
temperature and voltage.
Internal Clock Modes
INTOSC WITH I/O OR CLOCKOUT
user-adjusted
for more information.
HFINTOSC
LFINTOSC
Section 24.0 “Special Features of
2010 Microchip Technology Inc.
(Register
(High-Frequency
(Register
via software using the
(Low-Frequency
OSC
/4 (CLKOUT). In both
for more information.
2-3).
2-3).
Internal
Internal
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