參數(shù)資料
型號: MC56F8345VFGE
廠商: Freescale Semiconductor
文件頁數(shù): 48/172頁
文件大?。?/td> 0K
描述: IC DSP 16BIT 60MHZ 128-LQFP
標準包裝: 72
系列: 56F8xxx
核心處理器: 56800E
芯體尺寸: 16-位
速度: 60MHz
連通性: CAN,EBI/EMI,SCI,SPI
外圍設備: POR,PWM,溫度傳感器,WDT
輸入/輸出數(shù): 49
程序存儲器容量: 136KB(68K x 16)
程序存儲器類型: 閃存
RAM 容量: 6K x 16
電壓 - 電源 (Vcc/Vdd): 2.25 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 16x12b
振蕩器型: 外部
工作溫度: -40°C ~ 105°C
封裝/外殼: 128-LQFP
包裝: 托盤
配用: MC56F8367EVME-ND - EVAL BOARD FOR MC56F83X
External Clock Operation Timing
56F8345 Technical Data, Rev. 17
Freescale Semiconductor
141
Preliminary
10.5 External Clock Operation Timing
Figure 10-3 External Clock Timing
10.6 Phase Locked Loop Timing
Table 10-13 External Clock Operation Timing Requirements1
1. Parameters listed are guaranteed by design.
Characteristic
Symbol
Min
Typ
Max
Unit
Frequency of operation (external clock driver)2
2. See Figure 10-3 for details on using the recommended connection of an external clock driver.
fosc
0—
120
MHz
Clock Pulse Width3
3. The high or low pulse width must be no smaller than 8.0ns or the chip will not function.
tPW
3.0
ns
External clock input rise time4
4. External clock input rise time is measured from 10% to 90%.
trise
10
ns
External clock input fall time5
5. External clock input fall time is measured from 90% to 10%.
tfall
10
ns
Table 10-14 PLL Timing
Characteristic
Symbol
Min
Typ
Max
Unit
External reference crystal frequency for the PLL1
1. An externally supplied reference clock should be as free as possible from any phase jitter for the PLL to work
correctly. The PLL is optimized for 8MHz input crystal.
fosc
48
8.4
MHz
PLL output frequency2 (fOUT)
2. ZCLK may not exceed 60MHz. For additional information on ZCLK and (fOUT/2), please refer to the OCCS chapter in
the 56F8300 Peripheral User Manual.
fop
160
260
MHz
PLL stabilization time3 -40
° to +125°C
tplls
—1
10
ms
External
Clock
VIH
VIL
Note: The midpoint is VIL + (VIH – VIL)/2.
90%
50%
10%
90%
50%
10%
tPW
tfall
trise
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MC56F8346 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:16-bit Digital Signal Controllers
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