T
參數(shù)資料
型號: DSP56855BUE
廠商: Freescale Semiconductor
文件頁數(shù): 11/52頁
文件大?。?/td> 0K
描述: IC DSP 16BIT 120MHZ 100-LQFP
標(biāo)準(zhǔn)包裝: 90
系列: 568xx
核心處理器: 56800E
芯體尺寸: 16-位
速度: 120MHz
連通性: EBI/EMI,SCI,SSI
外圍設(shè)備: DMA,POR,WDT
輸入/輸出數(shù): 18
程序存儲器容量: 48KB(24K x 16)
程序存儲器類型: SRAM
RAM 容量: 24K x 16
電壓 - 電源 (Vcc/Vdd): 1.62 V ~ 1.98 V
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 100-LQFP
包裝: 托盤
General Characteristics
56855 Technical Data, Rev. 6
Freescale Semiconductor
19
Ambient operating temperature
TA
-40
85
°C
PLL clock frequency1
fpll
—240
MHz
Operating Frequency2
fop
—120
MHz
Frequency of peripheral bus
fipb
—60
MHz
Frequency of external clock
fclk
—240
MHz
Frequency of oscillator
fosc
24
MHz
Frequency of clock via XTAL
fxtal
—240
MHz
Frequency of clock via EXTAL
fextal
24
MHz
1. Assumes clock source is direct clock to EXTAL or crystal oscillator running 2-4MHz. PLL must be enabled, locked, and
selected. The actual frequency depends on the source clock frequency and programming of the CGM module.
2. Master clock is derived from on of the following four sources:
fclk = fxtal when the source clock is the direct clock to EXTAL
fclk = fpll when PLL is selected
fclk = fosc when the source clock is the crystal oscillator and PLL is not selected
fclk = fextal when the source clock is the direct clock to EXTAL and PLL is not selected
Table 4-3 Thermal Characteristics1
1. See Section 6.1 for more detail.
Characteristic
100-pin LQFP
Symbol
Value
Unit
Thermal resistance junction-to-ambient
(estimated)
θJA
41.2
°C/W
I/O pin power dissipation
PI/O
User Determined
W
Power dissipation
PD
PD = (IDD × VDD) + PI/O
W
Maximum allowed PD
PDMAX
(TJ – TA) / RθJA 2
2. TJ = Junction Temperature
TA = Ambient Temperature
°C
Table 4-2 Recommended Operating Conditions
Characteristic
Symbol
Min
Max
Unit
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