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參數(shù)資料
型號(hào): ENC424J600-I/PT
廠商: Microchip Technology
文件頁數(shù): 58/168頁
文件大小: 0K
描述: IC ETHERNET CTRLR W/SPI 44-TQFP
視頻文件: Fast 100 Mbps Ethernet PICtail Plus Overview
標(biāo)準(zhǔn)包裝: 160
控制器類型: 以太網(wǎng)控制器(IEEE 802.3)
接口: SPI
電源電壓: 3 V ~ 3.6 V
電流 - 電源: 96mA
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 44-TQFP
供應(yīng)商設(shè)備封裝: 44-TQFP(10x10)
包裝: 托盤
產(chǎn)品目錄頁面: 684 (CN2011-ZH PDF)
配用: AC164132-ND - BOARD DAUGHTER PICTAIL ETHERNET
PIC18F2220/2320/4220/4320
DS39599G-page 148
2007 Microchip Technology Inc.
FIGURE 16-8:
PWM DIRECTION CHANGE
FIGURE 16-9:
PWM DIRECTION CHANGE AT NEAR 100% DUTY CYCLE(1)
DC
Period(1)
SIGNAL
Note 1: The direction bit in the CCP1 Control register (CCP1CON<7>) is written any time during the PWM cycle.
2: When changing directions, the P1A and P1C signals switch before the end of the current PWM cycle at intervals of
4 TOSC, 16 TOSC or 64 TOSC, depending on the Timer2 prescaler value. The modulated P1B and P1D signals are
inactive at this time.
Period
(Note 2)
P1A (Active High)
P1B (Active High)
P1C (Active High)
P1D (Active High)
DC
Forward Period
Reverse Period
P1A
ton
(2)
toff(3)
t = toff – ton
(2,3)
P1B
P1C
P1D
External Switch D
Potential
Shoot-Through
Current
Note 1: All signals are shown as active-high.
2: ton is the turn-on delay of power switch QC and its driver.
3: toff is the turn-off delay of power switch QD and its driver.
External Switch C
t1
DC
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