參數(shù)資料
型號(hào)： MCF5251CVM140
廠(chǎng)商： FREESCALE SEMICONDUCTOR INC
元件分類(lèi)： 微控制器/微處理器
英文描述： 32-BIT, 140 MHz, MICROPROCESSOR, PBGA225
封裝： LEAD FREE, MAPBGA-225
文件頁(yè)數(shù)： 9/34頁(yè)
文件大?。?/td> 674K
代理商： MCF5251CVM140
Electrical Specifications
MCF5251 ColdFire Processor Data Sheet: Technical Data, Rev. 3
Freescale Semiconductor
17
4.2
SPDIF Timing
The Sony/Philips Digital Interface (SPDIF) timing parameters are provided in Table 14. SPDIF timing is
totally asynchronous, therefore there is no need for relationship with the clock. Table 14 shows the
differences between high-low and low-high propagation delay which is called the skew.
4.3
Serial Audio Interface Timing
The Serial Audio Interface fully complies with the Industry standard Philips IIS (InterIC Serial Audio Bus)
timings.
4.4
DDATA/PST/PSTCLK Debug Interface
Table 15 provides the timing parameters.
Table 13. SDRAM Bus Timing Parameters
ID
Characteristic
Timing to 50% Points
Maximum
Units
30 pF
Load
40 pF
Load
50 pF
Load
D1
Propagation delay BCLK rising to data valid
7.88
8.8
9.6
ns
D2
Propagation delay BCLK rising to BCLKE, SDLDQM,
SDUDQM, SDWE, SDCS0, SDRAS, SDCAS valid
8.7
–
ns
D3
Propagation delay BCLK rising to A[24:9] valid
8.3
9.2
–
ns
D4
Set-up time data valid to BCLK rising
0
ns
D5
Hold time BCLK rising to data valid
0.7
ns
Table 14. SPDIF Propagation Skew and Transition Parameters
Characteristic
Pin Load
Prop Delay
Maximum
Skew1
Maximum
1 Skew value does not include the skew introduced by different rise and fall times.
Transition2 Rise
Maximum
2 Transition times between 10% Vdd and 90% Vdd.
Transition Fall
Maximum
Units
EBUIN1, EBUIN2, EBUIN3, EBUIN4:
asynchronous inputs, no specs apply
––
0.7
–
ns
EBUOUT1, EBUOUT2 output
40 pF
–
1.5
24.2
31.3
ns
EBUOUT1, EBUOUT2 output
20 pF
–
1.5
13.6
18.0
ns
Table 15. DDATA/PST/PSTCLK Debug Interface Timing Parameters
Characteristic
Pin Load
Min
Max
Units
PSTCLK clock rise edge to DDATA/PSTDATA1 invalid
15 pF
–1.0
—
ns
PSTCLK clock rise edge to DDATA/PSTDATA2 valid
15 pF
—
4.0
ns
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCF5251DVM140 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:ColdFire Processor
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MCF5251VM140 功能描述:微處理器 - MPU AMADEUS+USB RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線(xiàn)寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類(lèi)型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
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MCF5253CVM140 功能描述:微處理器 - MPU MCF5253 CONSUMER IND RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線(xiàn)寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類(lèi)型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
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