PIC18F4620-E/P Microchip Technology Inc., PIC18F4620-E/P Datasheet - Page 9

• Manufacturer Part Number: PIC18F4620-E/P
• Description: 40 Pin, 64 KB Flash, 3968 RAM, 36 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F4620-E/P

• A/d Inputs: 13-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 10 MIPS
• Eeprom Memory: 1024 Bytes
• Input Output: 36
• Interface: SPI/I2C/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 40-pin PDIP
• Programmable Memory: 64K Bytes
• Ram Size: 4K Bytes
• Speed: 40 MHz
• Timers: 1-8 bit, 3-16 bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

1.0
This document contains device specific information for
the following devices:
This family offers the advantages of all PIC18 micro-
controllers – namely, high computational performance at
an economical price – with the addition of high
endurance, Enhanced Flash program memory. On top of
these features, the PIC18F2525/2620/4525/4620 family
introduces design enhancements that make these micro-
controllers a logical choice for many high-performance,
power sensitive applications.
1.1
1.1.1
All of the devices in the PIC18F2525/2620/4525/4620
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 can also run
• On-the-fly Mode Switching: The power
• Low Consumption in Key Modules: The
 2004 Microchip Technology Inc.
• PIC18F2525
• PIC18F2620
• PIC18F4525
• PIC18F4620
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 but the peripherals still
active. In these states, power consumption can be
reduced even further, to as little as 4% of normal
operation requirements.
managed modes are invoked by user code during
operation, allowing the user to incorporate
power-saving ideas into their application’s
software design.
power requirements for both Timer1 and the
Watchdog Timer are minimized. See
Section 26.0 “Electrical Characteristics” for
values.
DEVICE OVERVIEW
New Core Features
nanoWatt TECHNOLOGY
• PIC18LF2525
• PIC18LF2620
• PIC18LF4525
• PIC18LF4620
PIC18F2525/2620/4525/4620
Preliminary
1.1.2
All of the devices in the PIC18F2525/2620/4525/4620
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 which provides
• 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: This option constantly
• Two-Speed Start-up: This option allows the
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
an 8 MHz clock and an INTRC source
(approximately 31 kHz), as well as a range of
6 user selectable clock frequencies, between
125 kHz to 4 MHz, for a total of 8 clock frequencies.
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, which allows clock
speeds of up to 40 MHz. 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.
monitors 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
low-speed operation or a safe application
shutdown.
internal oscillator 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
DS39626B-page 7