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參數(shù)資料
| 型號： | MCF5471 |
| 廠商： | 飛思卡爾半導(dǎo)體(中國)有限公司 |
| 英文描述： | MCF547x Integrated Microprocessor Electrical Characteristics |
| 中文描述： | MCF547x集成的微處理器，電氣特性 |
| 文件頁數(shù)： | 22/28頁 |
| 文件大?。?/td> | 706K |
| 代理商： | MCF5471 |
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MCF547x Integrated Microprocessor Electrical Characteristics, Rev. 2
I
2
C Input/Output Timing Specifications
Freescale Semiconductor
22
Figure 18
shows timing for the values in
Table 20
and
Table 21
.
Figure 18. I
2
C Input/Output Timings
Table 21. I
2
C Output Timing Specifications between SCL and SDA
Num
Characteristic
Min
Max
Units
I1
1
I2
1
I3
2
I4
1
I5
3
I6
1
I7
1
I8
1
NOTES:
1
Note: Output numbers depend on the value programmed into the IFDR; an IFDR programmed
with the maximum frequency (IFDR = 0x20) results in minimum output timings as shown in
Table 21
. The I
2
C interface is designed to scale the actual data transition time to move it to the
middle of the SCL low period. The actual position is affected by the prescale and division values
programmed into the IFDR; however, the numbers given in
Table 21
are minimum values.
2
Because SCL and SDA are open-collector-type outputs, which the processor can only actively
drive low, the time SCL or SDA take to reach a high level depends on external signal
capacitance and pull-up resistor values.
3
Specified at a nominal 50-pF load.
Start condition hold time
6
—
Bus clocks
Clock low period
10
—
Bus clocks
SCL/SDA rise time (V
IL
= 0.5 V to V
IH
= 2.4 V)
Data hold time
—
—
μS
7
—
Bus clocks
SCL/SDA fall time (V
IH
= 2.4 V to V
IL
= 0.5 V)
Clock high time
—
3
ns
10
—
Bus clocks
Data setup time
2
—
Bus clocks
Start condition setup time (for repeated start
condition only)
20
—
Bus clocks
I9
1
Stop condition setup time
10
—
Bus clocks
SCL
I2
I6
I1
I4
I5
I7
I8
I3
I9
SDA
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MCF5472 | MCF547x Integrated Microprocessor Electrical Characteristics |
| MCF5473 | MCF547x Integrated Microprocessor Electrical Characteristics |
| MCF5474 | MCF547x Integrated Microprocessor Electrical Characteristics |
| MCF5475 | MCF547x Integrated Microprocessor Electrical Characteristics |
| MCF547X | MCF547x Integrated Microprocessor Electrical Characteristics |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MCF5471EC | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:MCF547x ColdFire Microprocessor |
| MCF5471VR200 | 功能描述:微處理器 - MPU MCF547X V4ECORE MMU FPU RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度: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 |
| MCF5471ZP200 | 功能描述:微處理器 - MPU MCF547X V4ECORE MMU FPU RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度: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 |
| MCF5472 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:MCF547x Integrated Microprocessor Electrical Characteristics |
| MCF5472EC | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:MCF547x ColdFire Microprocessor |
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