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器件3D模型￥ 93.559
PIC18F4620-E/P 数据手册 - Microchip（微芯）
制造商:
Microchip（微芯）
分类:
微控制器
封装:
PDIP-40
描述:
PIC18 系列 3986 B RAM 64 kB 闪存 8位 微控制器 - PDIP-40
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P4P5P142P143P144P150Hot
典型应用电路图在P167
原理图在P10P12P13P27P43P108P126P130P136P138P143P144
封装尺寸在P387
标记信息在P385P386
封装信息在P385
技术参数、封装参数在P338P340P343P344P345
应用领域在P154P248
电气规格在P9P10P75P236P237P241P242P245
导航目录
PIC18F4620-E/P数据手册
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若手册格式错乱，请下载阅览PDF原文件
PIC18F2525/2620/4525/4620
DS39626E-page 8 © 2008 Microchip Technology Inc.
1.2 Other Special Features
• Memory Endurance: The Enhanced Flash cells
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.
• Self-Programmability: These devices can write
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.
• Extended Instruction Set: The PIC18F2525/
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.
• Enhanced CCP Module: In PWM mode, this
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.
• Enhanced Addressable USART: This serial
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 EUSART provides stable operation for
applications that talk to the outside world without
using an external crystal (or its accompanying
power requirement).
• 10-Bit A/D Converter: This module incorporates
programmable acquisition time, allowing for a
channel to be selected and a conversion to be
initiated without waiting for a sampling period and
thus, reducing code overhead.
• Extended Watchdog Timer (WDT): This
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.
1.3 Details on Individual Family
Members
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. Flash program memory (48 Kbytes for
PIC18FX525 devices, 64 Kbytes for
PIC18FX620 devices).
2. A/D channels (10 for 28-pin devices, 13 for
40/44-pin devices).
3. I/O ports (3 bidirectional ports on 28-pin devices,
5 bidirectional ports on 40/44-pin devices).
4. CCP and Enhanced CCP implementation
(28-pin devices have 2 standard CCP
modules, 40/44-pin devices have one standard
CCP module and one ECCP module).
5. Parallel Slave Port (present only on 40/44-pin
devices).
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
DD range of 4.2V to 5.5V.
Low-voltage parts, designated by “LF” (such as
PIC18LF2620), function over an extended VDD range
of 2.0V to 5.5V.
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