PIC18F2525 MICROCHIP [Microchip Technology], PIC18F2525 Datasheet - Page 10
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PIC18F2525
Manufacturer Part Number
PIC18F2525
Description
28/40/44-Pin Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet
1.PIC18F2525.pdf
(390 pages)
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PIC18F2525/2620/4525/4620
1.2
• Memory Endurance: The Enhanced Flash cells
• Self-programmability: These devices can write
• Extended Instruction Set: The PIC18F2525/
• Enhanced CCP module: In PWM mode, this
• Enhanced Addressable USART: This serial
• 10-bit A/D Converter: This module incorporates
• Extended Watchdog Timer (WDT): This
DS39626B-page 8
for both program memory and data EEPROM are
rated to last for many thousands of erase/write
cycles – up to 100,000 for program memory and
1,000,000 for EEPROM. Data retention without
refresh is conservatively estimated to be greater
than 40 years.
to their own program memory spaces under inter-
nal software control. By using a bootloader routine
located in the protected Boot Block at the top of
program memory, it becomes possible to create
an application that can update itself in the field.
2620/4525/4620 family introduces an optional
extension to the PIC18 instruction set, which adds
8 new instructions and an Indexed Addressing
mode. This extension, enabled as a device con-
figuration option, has been specifically designed
to optimize re-entrant application code originally
developed in high-level languages, such as C.
module provides 1, 2 or 4 modulated outputs for
controlling half-bridge and full-bridge drivers.
Other features include auto-shutdown, for
disabling PWM outputs on interrupt or other select
conditions and auto-restart, to reactivate outputs
once the condition has cleared.
communication module is capable of standard
RS-232 operation and provides support for the LIN
bus protocol. Other enhancements include
automatic baud rate detection and a 16-bit Baud
Rate Generator for improved resolution. When the
microcontroller is using the internal oscillator
block, the USART provides stable operation for
applications that talk to the outside world without
using an external crystal (or its accompanying
power requirement).
programmable acquisition time, allowing for a
channel to be selected and a conversion to be
initiated without waiting for a sampling period and
thus, reduce code overhead.
Enhanced version incorporates a 16-bit prescaler,
allowing an extended time-out range that is stable
across operating voltage and temperature. See
Section 26.0 “Electrical Characteristics” for
time-out periods.
Other Special Features
Preliminary
1.3
Devices in the PIC18F2525/2620/4525/4620 family are
available in 28-pin and 40/44-pin packages. Block
diagrams for the two groups are shown in Figure 1-1
and Figure 1-2.
The devices are differentiated from each other in five
ways:
1.
2.
3.
4.
5.
All other features for devices in this family are identical.
These are summarized in Table 1-1.
The pinouts for all devices are listed in Table 1-2 and
Table 1-3.
Like all Microchip PIC18 devices, members of the
PIC18F2525/2620/4525/4620 family are available as
both standard and low-voltage devices. Standard
devices with Enhanced Flash memory, designated with
an “F” in the part number (such as PIC18F2620),
accommodate an operating V
Low-voltage parts, designated by “LF” (such as
PIC18LF2620), function over an extended V
of 2.0V to 5.5V.
Flash
PIC18FX525
PIC18FX620).
A/D channels (10 for 28-pin devices, 13 for
40/44-pin devices).
I/O ports (3 bidirectional ports on 28-pin devices,
5 bidirectional ports on 40/44-pin devices).
CCP and Enhanced CCP implementation
(28-pin devices have 2 standard CCP
CCP module and one ECCP module).
Parallel Slave Port (present only on 40/44-pin
devices).
modules, 40/44-pin devices have one standard
Details on Individual Family
Members
program
devices,
2004 Microchip Technology Inc.
memory
DD
range of 4.2V to 5.5V.
64 Kbytes
(48 Kbytes
DD
range
for
for
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