參數(shù)資料
型號: MB91F469GAPB-GS
元件分類: 微控制器/微處理器
英文描述: 32-BIT, FLASH, 88 MHz, RISC MICROCONTROLLER, PBGA320
封裝: 27 X 27 MM, 2.46 MM HEIGHT, 1.27 MM PITCH, PLASTIC, BGA-320
文件頁數(shù): 39/159頁
文件大小: 4658K
代理商: MB91F469GAPB-GS
MB91460G Series
133
7.7.9.
Bus hold timing
(VDD35
= 4.5 V to 5.5 V, Vss5 = AVss5 = 0V,TA =40 °Cto + 105 °C)
Note : BRQ must be kept High until the bus is granted (this is acknowledged by the falling edge of BGRNTX).
It must be kept High as long as the bus shall be hold.
After releasing the bus (BRQ set to Low) this is acknowledged by the rising edge of BGRNTX.
Parameter
Symbol
Pin name
Value
Unit
Min
Max
SYSCLK
↓ to BGRNTX delay time
tCLBGL
SYSCLK
BGRNTX
5ns
tCLBGH
5ns
Bus HIZ to BGRNTX
tAXBGL
BGRNTX
MCLK*
A0 to An
RDX, ASX
WRXn,WEX
CSXn,BAAX
tCLKT + 4
ns
BGRNTX
↑ to Bus drive
tBGHAV
tCLKT
+ 1
ns
tAXBGL
tBGHAV
ADDR,RDX,WRX,
WEX,CSXn,ASX,
MCLKE,MCLKI,
MCLKO,BAAX
tCLBGL
tCLBGH
BGRNTX
SYSCLK
BRQ
PRELIMINARY
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