MCF548x ColdFire Microprocessor, Rev. 4 Output Driver Capability and Loading Fre" />
參數(shù)資料
型號: MCF5485CZP200
廠商: Freescale Semiconductor
文件頁數(shù): 2/34頁
文件大小: 0K
描述: IC MPU 32BIT COLDF 388-PBGA
標(biāo)準(zhǔn)包裝: 40
系列: MCF548x
核心處理器: Coldfire V4E
芯體尺寸: 32-位
速度: 200MHz
連通性: CAN,EBI/EMI,以太網(wǎng),I²C,SPI,UART/USART,USB
外圍設(shè)備: DMA,PWM,WDT
輸入/輸出數(shù): 99
程序存儲器類型: ROMless
RAM 容量: 32K x 8
電壓 - 電源 (Vcc/Vdd): 1.43 V ~ 1.58 V
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 388-BBGA
包裝: 托盤
MCF548x ColdFire Microprocessor, Rev. 4
Output Driver Capability and Loading
Freescale Semiconductor
10
4.4.1
Bias Resistor
The USBRBIAS resistor should be placed as close to the dedicated USB 2.0 pins as possible. The tolerance should be ±1%.
Figure 7. USBRBIAS Connection
5
Output Driver Capability and Loading
Table 6 lists values for drive capability and output loading.
Table 6. I/O Driver Capability1
1 The device’s pads have balanced sink and source current. The drive capability is the same as
the sink capability.
Signal
Drive
Capability
Output
Load (CL)
SDRAMC (SDADDR[12:0], SDDATA[31:0], RAS, CAS, SDDM[3:0],
SDWE, SDBA[1:0]
24 mA
15 pF
SDRAMC DQS and clocks (SDDQS[3:0], SDRDQS, SDCLK[1:0],
SDCLK[1:0], SDCKE)
24 mA
15 pF
SDRAMC chip selects (SDCS[3:0])
24 mA
15 pF
FlexBus (AD[31:0], FBCS[5:0], ALE, R/W, BE/BWE[3:0], OE)
16 mA
30 pF
FEC (EnMDIO, EnMDC, EnTXEN, EnTXD[3:0], EnTXER
8 mA
15 pF
Timer (TOUT[3:0])
8 mA
50 pF
FlexCAN (CANTX)
8 mA
30 pF
DACK[1:0]
8 mA
30 pF
PSC (PSCnTXD[3:0], PSCnRTS/PSCnFSYNC,
8 mA
30 pF
DSPI (DSPISOUT, DSPICS0/SS, DSPICS[2:3], DSPICS5/PCSS)
24 mA
50 pF
PCI (PCIAD[31:0], PCIBG[4:1], PCIBG0/PCIREQOUT, PCIDEVSEL,
PCICXBE[3:0], PCIFRM, PCIPERR, PCIRESET, PCISERR, PCISTOP,
PCIPAR, PCITRDY, PCIIRDY
16 mA
50 pF
I2C (SCL, SDA)
8 mA
50 pF
BDM (PSTCLK, PSTDDATA[7:0], DSO/TDO,
8 mA
25 pF
RSTO
8 mA
50 pF
9.1k
Ω
USBRBIAS
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