參數(shù)資料
型號： MC56F8025VLD
廠商： Freescale Semiconductor
文件頁數(shù)： 89/161頁
文件大?。?/td> 0K
描述： IC DSP 16BIT DUAL HARV 44-LQFP
標(biāo)準(zhǔn)包裝： 800
系列： 56F8xxx
核心處理器： 56800E
芯體尺寸： 16-位
速度： 32MHz
連通性： I²C，LIN，SCI，SPI
外圍設(shè)備： POR，PWM，WDT
輸入/輸出數(shù)： 35
程序存儲器容量： 32KB（16K x 16）
程序存儲器類型： 閃存
RAM 容量： 2K x 16
電壓 - 電源 (Vcc/Vdd)： 3 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 8x12b，D/A 2x12b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 105°C
封裝/外殼： 44-LQFP
包裝： 托盤
Overview
56F8035/56F8025 Data Sheet, Rev. 6
Freescale Semiconductor
33
Part 3 OCCS
3.1 Overview
The On-Chip Clock Synthesis (OCCS) module allows designers using an internal relaxation oscillator, an
external crystal, or an external clock to run 56F8000 family devices at user-selectable frequencies up to
32MHz. For details, see the OCCS chapter in the 56F802x and 56F803x Peripheral Reference Manual.
3.2 Features
The OCCS module interfaces to the oscillator and PLL and offers these features:
Internal relaxation oscillator
Ability to power down the internal relaxation oscillator or crystal oscillator
Ability to put the internal relaxation oscillator into Standby mode
3-bit postscaler provides control for the PLL output
Ability to power down the PLL
Provides a 2X system clock which operates at twice the system clock to the System Integration Module
(SIM)
Provides a 3X system clock which operates at three times the system clock to PWM and Timer modules
Safety shutdown feature is available if the PLL reference clock is lost
Can be driven from an external clock source
The clock generation module provides the programming interface for the PLL, internal relaxation
oscillator, and crystal oscillator.
3.3 Operating Modes
In 56F8000 family devices, an internal oscillator, an external crystal, or an external clock source can be
used to provide a reference clock to the SIM.
The 2X system clock source output from the OCCS can be described by one of the following equations:
2X system frequency = oscillator frequency
2X system frequency = (oscillator frequency x 8) / (postscaler)
where:
postscaler = 1, 2, 4, 8, 16, or 32
The SIM is responsible for further dividing these frequencies by two, which will insure a 50% duty cycle
in the system clock output.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC56F8025VLDR 制造商:Freescale Semiconductor 功能描述:16-BIT DSC, 56800E CORE, 32KB FLASH, 32MHZ, QFP 44 - Tape and Reel 制造商:Freescale Semiconductor 功能描述:IC DSC 16BIT 32KB FLASH 44LQFP 制造商:Freescale Semiconductor 功能描述:16 BIT DSPHC
MC56F8027 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:16-bit Digital Signal Controllers
MC56F8027MLH 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 16 BIT DSPHC 32KB RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
MC56F8027VLD 制造商:Freescale Semiconductor 功能描述:
MC56F8027VLH 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 16 BIT DSPHC 32KB RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
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