PIC18F2423-I/ML Microchip Technology, PIC18F2423-I/ML Datasheet - Page 9

• Manufacturer Part Number: PIC18F2423-I/ML
• Description: 16KB, Flash, 768bytes-RAM, 25I/O, 8-bit Family,nanoWatt 28 QFN 6x6mm TUBE
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F2423-I/ML

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, PWM, WDT
• Number Of I /o: 25
• 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): 4.2 V ~ 5.5 V
• Data Converters: A/D 10x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT28QFN4 - SOCKET TRANS ICE 28QFN W/CABLEAC164322 - MODULE SOCKET MPLAB PM3 28/44QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

1.0
This document contains device-specific information for
the following devices:
This family offers the advantages of all PIC18
microcontrollers – namely, high computational perfor-
mance at an economical price – with the addition of
high-endurance, Enhanced Flash program memory.
On top of these features, the PIC18F2423/2523/4423/
4523 family introduces design enhancements that
make these microcontrollers a logical choice for many
high-performance, power-sensitive applications.
1.1
1.1.1
All of the devices in the PIC18F2423/2523/4423/4523
family incorporate a range of features that can signifi-
cantly reduce power consumption during operation.
Key items include:
• Alternate Run Modes: By clocking the controller
• Multiple Idle Modes: The controller also can run
• On-the-Fly Mode Switching: The power-managed
• Low Consumption in Key Modules: The power
© 2009 Microchip Technology Inc.
• PIC18F2423
• PIC18F2523
• PIC18F4423
• PIC18F4523
Note: This data sheet documents only the devices’
from the Timer1 source or the internal oscillator
block, power consumption during code execution
can be reduced by as much as 90%.
with its CPU core disabled and the peripherals still
active. In these states, power consumption can be
reduced even further, to as little as 4% of normal
operation requirements.
modes are invoked by user code during operation,
allowing the user to incorporate power-saving ideas
into their application’s software design.
requirements for both Timer1 and the Watchdog
Timer are minimized. See Section 4.0 “Electrical
Characteristics” for values.
features and specifications that are in addition
to, or different from, the features and specifi-
cations of the PIC18F2420/2520/4420/4520
devices. For information on the features and
specifications shared by the PIC18F2423/
2523/4423/4523
4420/4520 devices, see the “PIC18F2420/
2520/4420/4520 Data Sheet” (DS39631).
DEVICE OVERVIEW
New Core Features
nanoWatt TECHNOLOGY
and
• PIC18LF2423
• PIC18LF2523
• PIC18LF4423
• PIC18LF4523
PIC18F2420/2520/
PIC18F2423/2523/4423/4523
1.1.2
All of the devices in the PIC18F2423/2523/4423/4523
family offer ten different oscillator options, allowing
users a wide range of choices in developing application
hardware. These include:
• Four Crystal modes, using crystals or ceramic
• Two External Clock modes, offering the option of
• Two External RC Oscillator modes with the same
• An internal oscillator block that offers eight clock
• A Phase Lock Loop (PLL) frequency multiplier,
Besides its availability as a clock source, the internal
oscillator block provides a stable reference source that
gives the family additional features for robust
operation:
• Fail-Safe Clock Monitor: Constantly monitors
• Two-Speed Start-up: Allows the internal oscillator
resonators.
using two pins (oscillator input and a divide-by-4
clock output) or one pin (oscillator input, with the
second pin reassigned as general I/O).
pin options as the External Clock modes.
frequencies: an 8 MHz clock and an INTRC source
(approximately 31 kHz), as well as a range of six
user-selectable clock frequencies, between
125 kHz to 4 MHz. This option frees the two
oscillator pins for use as additional general
purpose I/O.
available to both the High-Speed Crystal and
Internal Oscillator modes, allowing clock speeds
of up to 40 MHz from the HS clock source. Used
with the internal oscillator, the PLL gives users a
complete selection of clock speeds, from 31 kHz
to 32 MHz, all without using an external crystal or
clock circuit.
the main clock source against a reference signal
provided by the internal oscillator. If a clock failure
occurs, the controller is switched to the internal
oscillator block, allowing for continued operation
or a safe application shutdown.
to serve as the clock source from Power-on Reset,
or wake-up from Sleep mode, until the primary clock
source is available.
MULTIPLE OSCILLATOR OPTIONS
AND FEATURES
DS39755C-page 9