參數(shù)資料
型號: MCF54418CMJ250
廠商: Freescale Semiconductor
文件頁數(shù): 44/61頁
文件大?。?/td> 0K
描述: IC MCU 32BIT 256MAPBGA
標(biāo)準(zhǔn)包裝: 450
系列: MCF5441x
核心處理器: Coldfire V4
芯體尺寸: 32-位
速度: 250MHz
連通性: 1 線,CAN,EBI/EMI,以太網(wǎng),I²C,智能卡,SPI,SSI,UART/USART,USB,USB OTG
外圍設(shè)備: DMA,PWM,WDT
輸入/輸出數(shù): 87
程序存儲器類型: ROMless
RAM 容量: 64K x 8
電壓 - 電源 (Vcc/Vdd): 1.14 V ~ 1.32 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x12b,D/A 2x12b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 256-LBGA
包裝: 托盤
Electrical characteristics
MCF5441x ColdFire Microprocessor Data Sheet, Rev. 8
Freescale Semiconductor
49
Figure 29. MII/RMII transmit signal timing diagram
4.22.3
Asynchronous input signal timing specifications
Figure 30. MII/RMII async inputs timing diagram
4.22.4
MDIO serial management timing specifications
Table 33. MII/RMII transmit signal timing
Num
Characteristic
Min
Max
Unit
E9
CRS, COL minimum pulse width
1.5
TXCLK period
Table 34. MDIO serial management channel signal timing
Num
Characteristic
Symbol
Min
Max
Unit
E10
MDC cycle time
tMDC
400
ns
E11
MDC pulse width
40
60
% tMDC
E12
MDC to MDIO output valid
375
ns
E13
MDC to MDIO output invalid
25
ns
E14
MDIO input to MDC setup
10
ns
E15
MDIO input to MDC hold
0
ns
Valid Data
TXCLK (MII) / EXTAL (RMII)
TXD[n:0]
TXEN,
TXER
E7
E8
E5
E6
CRS, COL
E9
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