參數(shù)資料
型號(hào): ML60851DTB
廠(chǎng)商: LAPIS SEMICONDUCTOR CO LTD
元件分類(lèi): 總線(xiàn)控制器
英文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP44
封裝: 10 X 10 MM, 0.80 MM PITCH, PLASTIC, TQFP-44
文件頁(yè)數(shù): 50/84頁(yè)
文件大?。?/td> 394K
代理商: ML60851DTB
FEDL60851D-01
1Semiconductor
ML60851D
53/83
DMA Transfer Timing (1)
ML60851D to Memory (Single Transfer, Single Address Mode)
Parameter
Symbol
Condition
Min.
Max.
Unit
Note
DREQ Disable Time
t
1
Load 20 pF
20
ns
DREQ Enable Time
t
2
—63
ns
4
DACK Hold Time
t
3
0—
ns
Read Data Delay Time
t
4
Load 20 pF
25
ns
1
Data Hold Time
t
5
Load 20 pF
0
25
ns
8-bit DMA
63
ns
2
Recovery Time
t
6
16-bit DMA
105
ns
3
Notes: 1. When in Single Address mode,
CS and A7:A0 are ignored.
t
1 and t4 are defined depending on DACK or RD which becomes active last.
2. 3-clock time of oscillation clock (clock period: 21 ns)
3. 5-clock time of oscillation clock (clock period: 21 ns)
4. It is possible to increase t
2 by setting the DMA interval register (DMAINTVL).
DREQ
t
4
t
1
t
3
t
2
t
6
t
5
DACK
RD
DOUT
DATA OUT
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