參數(shù)資料
型號: ML60851DTB
廠商: LAPIS SEMICONDUCTOR CO LTD
元件分類: 總線控制器
英文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP44
封裝: 10 X 10 MM, 0.80 MM PITCH, PLASTIC, TQFP-44
文件頁數(shù): 52/84頁
文件大小: 394K
代理商: ML60851DTB
FEDL60851D-01
1Semiconductor
ML60851D
55/83
DMA Transfer Timing (3)
ML60851D to Memory (Demand Transfer, Single Address Mode)
Parameter
Symbol
Condition
Min.
Max.
Unit
Note
DREQ Disable Time
t
1
Load 20 pF
20
ns
DACK Hold Time
t
2
0—
ns
Read Data Delay Time
t
3
Load 20 pF
25
ns
1
Data Hold Time
t
4
Load 20 pF
0
25
ns
8-bit DMA
63
ns
2
Recovery Time
t
5
16-bit DMA
105
ns
3
Notes: 1. When in Single Address mode, t
3 is defined depending on DACK or RD which becomes
active last.
A7:A0 and
CS are ignored.
2. 3-clock time of oscillation clock (clock period: 21 ns)
3. 5-clock time of oscillation clock (clock period: 21 ns)
DREQ
DACK
RD
DOUT
t
2
t
1
t
5
t
4
Last Packet Read
t
3
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