參數(shù)資料
型號: PIC18F46J50-I/PT
廠商: Microchip Technology
文件頁數(shù): 38/164頁
文件大?。?/td> 0K
描述: IC PIC MCU FLASH 64KB 44-TQFP
產(chǎn)品培訓(xùn)模塊: XLP Deep Sleep Mode
PIC18 J Series MCU Overview
PIC18F MPLAB® Starter Kit
8-bit PIC® Microcontroller Portfolio
標(biāo)準(zhǔn)包裝: 160
系列: PIC® XLP™ 18F
核心處理器: PIC
芯體尺寸: 8-位
速度: 48MHz
連通性: I²C,SPI,UART/USART,USB
外圍設(shè)備: 欠壓檢測/復(fù)位,DMA,POR,PWM,WDT
輸入/輸出數(shù): 34
程序存儲器容量: 64KB(32K x 16)
程序存儲器類型: 閃存
RAM 容量: 3.8K x 8
電壓 - 電源 (Vcc/Vdd): 2.15 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 13x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-TQFP
包裝: 托盤
產(chǎn)品目錄頁面: 657 (CN2011-ZH PDF)
配用: AC164330-ND - MODULE SKT FOR 44TQFP 18F45J10
PIC18F46J50 FAMILY
DS39931D-page 132
2011 Microchip Technology Inc.
10.1
I/O Port Pin Capabilities
When developing an application, the capabilities of the
port pins must be considered. Outputs on some pins
have higher output drive strength than others. Similarly,
some pins can tolerate higher than VDD input levels.
10.1.1
PIN OUTPUT DRIVE
General purpose output buffers are implemented with
CMOS transistors, for rail to rail output capability, when
lightly loaded. The output pin drive strengths vary for
groups of pins intended to meet the needs for a variety
of applications. PORTB and PORTC are designed to
drive higher loads, such as LEDs. All other ports are
designed for small loads; typically, indication only.
Table 10-1 summarizes the output capabilities. Refer to
for more
details.
TABLE 10-1:
OUTPUT DRIVE LEVELS
10.1.2
INPUT PINS AND VOLTAGE
CONSIDERATIONS
The voltage tolerance of pins used as device inputs is
dependent on the pin’s input function. Pins that are used
as digital only inputs are able to handle DC voltages up to
5.5V; a level typical for digital logic circuits. In contrast,
pins that also have analog input functions of any kind can
only tolerate voltages up to VDD. Voltage excursions
beyond VDD on these pins should be avoided. Table 10-2
summarizes the input capabilities. Refer to Section 30.0
for more details.
TABLE 10-2:
INPUT VOLTAGE LEVELS
Port
Drive
Description
PORTA
(except RA6)
Minimum Intended for indication.
PORTD
PORTE
PORTB
High
Suitable for strong LED
drive levels.
PORTC
PORTA<6>
Port or Pin
Tolerated
Input
Description
PORTA<7:0>
VDD
Only VDD input levels
are tolerated.
PORTB<3:0>
PORTC<2:0>
PORTE<2:0>
PORTB<7:4>
5.5V
Tolerates input levels
above VDD, useful for
most standard logic.
PORTC<7:6>
PORTD<7:0>
PORTC<5:4>
(USB)
Designed for USB
specifications.
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