2006 Microchip Technology Inc.
DS41159E-page 7
PIC18FXX8
1.0
DEVICE OVERVIEW
This document contains device specific information for
the following devices:
PIC18F248
PIC18F258
PIC18F448
PIC18F458
These devices are available in 28-pin, 40-pin and
44-pin packages. They are differentiated from each
other in four ways:
1.
PIC18FX58 devices have twice the Flash
program memory and data RAM of PIC18FX48
devices
(32 Kbytes
and
1536
bytes
vs.
16 Kbytes and 768 bytes, respectively).
2.
PIC18F2X8 devices implement 5 A/D channels,
as opposed to 8 for PIC18F4X8 devices.
3.
PIC18F2X8 devices implement 3 I/O ports,
while PIC18F4X8 devices implement 5.
4.
Only
PIC18F4X8
devices
implement
the
Enhanced CCP module, analog comparators
and the Parallel Slave Port.
All other features for devices in the PIC18FXX8 family,
including the serial communications modules, are
identical. These are summarized in Table 1-1.
Block diagrams of the PIC18F2X8 and PIC18F4X8
devices are provided in Figure 1-1 and Figure 1-2,
respectively. The pinouts for these device families are
listed in Table 1-2.
TABLE 1-1:
PIC18FXX8 DEVICE FEATURES
Features
PIC18F248
PIC18F258
PIC18F448
PIC18F458
Operating Frequency
DC – 40 MHz
Internal
Program
Memory
Bytes
16K
32K
16K
32K
# of Single-Word
Instructions
8192
16384
8192
16384
Data Memory (Bytes)
768
1536
768
1536
Data EEPROM Memory (Bytes)
256
Interrupt Sources
17
21
I/O Ports
Ports A, B, C
Ports A, B, C, D, E
Timers
4
Capture/Compare/PWM Modules
1
Enhanced Capture/Compare/
PWM Modules
——
1
Serial Communications
MSSP, CAN,
Addressable USART
MSSP, CAN,
Addressable USART
MSSP, CAN,
Addressable USART
MSSP, CAN,
Addressable USART
Parallel Communications (PSP)
No
Yes
10-bit Analog-to-Digital Converter
5 input channels
8 input channels
Analog Comparators
No
2
Analog Comparators VREF Output
N/A
Yes
Resets (and Delays)
POR, BOR,
RESET
Instruction,
Stack Full,
Stack Underflow
(PWRT, OST)
POR, BOR,
RESET
Instruction,
Stack Full,
Stack Underflow
(PWRT, OST)
POR, BOR,
RESET
Instruction,
Stack Full,
Stack Underflow
(PWRT, OST)
POR, BOR,
RESET
Instruction,
Stack Full,
Stack Underflow
(PWRT, OST)
Programmable Low-Voltage Detect
Yes
Programmable Brown-out Reset
Yes
CAN Module
Yes
In-Circuit Serial Programming
(ICSP)
Yes
Instruction Set
75 Instructions
Packages
28-pin SPDIP
28-pin SOIC
28-pin SPDIP
28-pin SOIC
40-pin PDIP
44-pin PLCC
44-pin TQFP
40-pin PDIP
44-pin PLCC
44-pin TQFP
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相关代理商/技术参数
PIC18F25J10-I/ML 功能描述:8位微控制器 -MCU 32 KB FL 1024 RAM RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F25J10-I/SO 功能描述:8位微控制器 -MCU 32 KB FL 1024 RAM RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F25J10-I/SP 功能描述:8位微控制器 -MCU 32 KB FL 1024 RAM RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F25J10-I/SS 功能描述:8位微控制器 -MCU 16 KB FL 1 KB RAM RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F25J10T-I/ML 功能描述:8位微控制器 -MCU 32 KB FL 1024 RAM RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F25J10T-I/SO 功能描述:8位微控制器 -MCU 32 KB FL 1024 RAM RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC18F25J10T-I/SS 功能描述:8位微控制器 -MCU 16 KB FL 1 KB RAM RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
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