參數(shù)資料
型號: MCIMX27MOP4A
廠商: Freescale Semiconductor
文件頁數(shù): 94/152頁
文件大?。?/td> 0K
描述: IC MPU I.MX27 19X19 473MAPBGA
標準包裝: 84
系列: i.MX27
核心處理器: ARM9
芯體尺寸: 32-位
速度: 400MHz
連通性: 1 線,CAN,EBI/EMI,以太網(wǎng),I²C,MMC,智能卡,SPI,SSI,UART/USART,USB OTG
外圍設備: DMA,LCD,POR,PWM,WDT
程序存儲器類型: ROMless
RAM 容量: 45K x 8
電壓 - 電源 (Vcc/Vdd): 1.38 V ~ 1.52 V
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 473-LFBGA
包裝: 托盤
i.MX27 and i.MX27L Data Sheet, Rev. 1.8
46
Freescale Semiconductor
Electrical Characteristics
4.2.2
1-Wire Electrical Specifications
Figure 4 depicts the RPP timing, and Table 17 lists the RPP timing parameters.
Table 14. AC Electrical Characteristics of Slow General I/O Pads
ID
Parameter
Symbol
Test Condition
Min
Typical
Max
Units
PA1
Output Pad Transition Times (Max High)
tpr
25 pF
50 pF
1.25
1.95
1.9
2.9
3.2
4.75
ns
Output Pad Transition Times (High)
tpr
25 pF
50 pF
1.45
2.6
—4.8
8.4
ns
Output Pad Transition Times (Standard Drive)
tpr
25 pF
50 pF
2.6
5.1
—8.5
16.5
ns
Maximum Input Transition Times1
1 Hysteresis mode is recommended for input with transition time greater than 25 ns.
trm
25
ns
Note:
Table 15. AC Electrical Characteristics of Fast General I/O Pads
ID
Parameter
Symbol
Test Condition
Min
Typical
Max
Units
PA1
Output Pad Transition Times (Max High)
tpr
25 pF
50 pF
0.9
1.7
1.2
2.4
2.0
4.0
ns
Output Pad Transition Times (High)
tpr
25 pF
50 pF
1.15
2.3
1.6
3.1
2.7
5.3
ns
Output Pad Transition Times (Normal)
tpr
25 pF
50 pF
1.7
3.4
2.4
4.7
4.0
8.0
ns
Maximum Input Transition Times1
1 Hysteresis mode is recommended for input with transition time greater than 25 ns.
trm
25
ns
Note:
Table 16. AC Electrical Characteristics of DDR I/O Pads
ID
Parameter
Symbol
Test Condition
Min
Typical
Max
Units
PA1
Output Pad Transition Times (DDR Drive)
tpr
25 pF
50 pF
0.5
1.0
0.75
1.45
1.2
2.4
ns
Output Pad Transition Times (Max High)
tpr
25 pF
50 pF
0.67
1.3
1.0
2.0
1.6
3.1
ns
Output Pad Transition Times (High)
tpr
25 pF
35 pF
1.0
1.95
1.5
2.9
2.4
4.7
ns
Output Pad Transition Times (Normal)
tpr
25 pF
50 pF
2.0
3.9
2.9
5.9
4.8
8.4
ns
Maximum Input Transition Times
trm
5
ns
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