參數(shù)資料
型號(hào)： EM78459
英文描述： Dual Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: -40°C to 85°C; Package: 14-SOIC
中文描述： 8位微控制器的通用產(chǎn)品
文件頁(yè)數(shù)： 30/57頁(yè)
文件大?。?/td> 854K
代理商： EM78459
EM78458/459
MASK ROM
This specification is subject to change without prior notice.
2002/03/01
36
Data Bus
PRD1
Comparator
TMR1H + TMR1L
S
R
Q
MUX
Duty Cycle
Match
Period
Match
PWM1
T1P0 T1P1 T1EN
IOC6
PRD2
Comparator
S
R
Q
MUX
Duty Cycle
Match
Period
Match
PWM2
T2P0 T2P1 T2EN
IOC6
To PWM1IF
To PWM2IF
reset
latch
1:2
1:8
1:32
Fosc
1:64
1:2
1:8
1:32
Fosc
1:64
TMR2H + TMR2L
DT2H
+
DT2L
DT2H
+
DT2L
DL2H + DL2L
Fig. 13 The Functional Block Diagram of the Dual PWMs
Period
Duty Cycle
DT1 = TMR1
PRD1 = TMR1
Fig. 14 The Output Timing of the PWM
2. Increment Timer Counter ( TMRX: TMR1H/TWR1L or TMR2H/TWR2L )
TMRX are ten-bit clock counters with programmable prescalers. They are designed for the PWM
module as baud rate clock generators. TMRX can be read, written, and cleared at any reset
conditions. If employed, they can be turned down for power saving by setting T1EN bit
[PWMCON<4>] or T2EN bit [PWMCON<5>] to 0.
相關(guān)PDF資料
PDF描述
EM78450 Dual Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: 0&degC to 70&deg;C; Package: 16-QFN
EM78612 Dual Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: -40&deg;C to 85&deg;C; Package: 16-QFN
EM78P451 Dual Advanced Synchronous Rectified Buck MOSFET Drivers with Protection Features; Temperature Range: 0&degC to 70&deg;C; Package: 16-QFN
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
EM78459AK 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:8-Bit Microcontroller with MASK ROM
EM78459AM 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:8-Bit Microcontroller with MASK ROM
EM78468 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:8-BIT Microcontroller
EM78468AQ 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:8-BIT Microcontroller
EM78468BQ 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:8-BIT Microcontroller
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