参数资料
型号: DSP56858FVE
厂商: Freescale Semiconductor
文件页数: 17/64页
文件大小: 0K
描述: IC DSP 16BIT 120MHZ 144-LQFP
标准包装: 60
系列: 568xx
核心处理器: 56800E
芯体尺寸: 16-位
速度: 120MHz
连通性: EBI/EMI,SCI,SPI,SSI
外围设备: DMA,POR,WDT
输入/输出数: 47
程序存储器容量: 80KB(40K x 16)
程序存储器类型: SRAM
RAM 容量: 24K x 16
电压 - 电源 (Vcc/Vdd): 1.62 V ~ 1.98 V
振荡器型: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 144-LQFP
包装: 托盘
56858 Technical Data, Rev. 6
24
Freescale Semiconductor
4.2 DC Electrical Characteristics
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
Symbol
Value
Unit
144-pin LQFP
144 MAPBGA
Thermal resistance junction-to-ambient
(estimated)
θJA
42.9
36.1
°C/W
I/O pin power dissipation
PI/O
User Determined
W
Power dissipation
PD
PD = (IDD x VDD) + PI/O
W
Maximum allowed PD
PDMAX
(TJ - TA) / RθJA 2
2. TJ = Junction Temperature
TA = Ambient Temperature
W
Table 4-4 DC Electrical Characteristics
Operating Conditions: VSS = VSSIO = VSSA = 0 V, VDD = 1.62-1.98V, VDDIO = VDDA = 3.0–3.6V, TA = –40° to +120°C, CL ≤ 50pF, fop = 120MHz
Characteristic
Symbol
Min
Typ
Max
Unit
Input high voltage (XTAL/EXTAL)
VIHC
VDDA – 0.8
VDDA
VDDA + 0.3
V
Input low voltage (XTAL/EXTAL)
VILC
-0.3
0.5
V
Input high voltage
VIH
2.0
5.5
V
Input low voltage
VIL
-0.3
0.8
V
Table 4-2 Recommended Operating Conditions (Continued)
Characteristic
Symbol
Min
Max
Unit
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