MCF5208 ColdFire Microprocessor Data Sheet, Rev. 3 Fr" />
參數(shù)資料
型號: MCF5208CAB166
廠商: Freescale Semiconductor
文件頁數(shù): 20/46頁
文件大?。?/td> 0K
描述: MCU 32BIT 166.67MHZ 160-QFP
標(biāo)準(zhǔn)包裝: 24
系列: MCF520x
核心處理器: Coldfire V2
芯體尺寸: 32-位
速度: 166.67MHz
連通性: EBI/EMI,以太網(wǎng),I²C,SPI,UART/USART
外圍設(shè)備: DMA,WDT
輸入/輸出數(shù): 50
程序存儲器類型: ROMless
RAM 容量: 16K x 8
電壓 - 電源 (Vcc/Vdd): 1.4 V ~ 3.6 V
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 160-BQFP
包裝: 托盤
Electrical Characteristics
MCF5208 ColdFire Microprocessor Data Sheet, Rev. 3
Freescale Semiconductor
27
5.7.1.1
FlexBus AC Timing Characteristics
The following timing numbers indicate when data will be latched or driven onto the external bus, relative
to the system clock.
NOTE
The processor drives the data lines during the first clock cycle of the transfer
with the full 32-bit address. This may be ignored by standard connected
devices using non-multiplexed address and data buses. However, some
applications may find this feature beneficial.
The address and data busses are muxed between the FlexBus and SDRAM
controller. At the end of the read and write bus cycles the address signals are
indeterminate.
Table 11. FlexBus AC Timing Specifications
Num
Characteristic
Symbol
Min
Max
Unit
Notes
Frequency of Operation
83.33
Mhz
fsys/2
FB1
Clock Period (FB_CLK)
tFBCK
12
ns
tcyc
FB2
Data, and Control Output Valid (A[23:0], D[31:0],
FB_CS[5:0], R/W, TS, BE/BWE[3:0] and OE)
tFBCHDCV
—7.0
ns
1
NOTES:
1
Timing for chip selects only applies to the FB_CS[5:0] signals. Please see Section 5.8, “SDRAM Bus” for SD_CS[1:0]
timing.
FB3
Data, and Control Output Hold ((A[23:0], D[31:0],
FB_CS[5:0], R/W, TS, BE/BWE[3:0], and OE)
tFBCHDCI
1—
ns
2
The FlexBus supports programming an extension of the address hold. Please consult the device reference manual for
more information.
FB4
Data Input Setup
tDVFBCH
3.5
ns
FB5
Data Input Hold
tDIFBCH
0—
ns
FB6
Transfer Acknowledge (TA) Input Setup
tCVFBCH
4—
ns
FB7
Transfer Acknowledge (TA) Input Hold
tCIFBCH
0—
ns
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