參數(shù)資料
型號: ML60851EGA
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: 0.80 MM PITCH, PLASTIC, QFP-44
文件頁數(shù): 58/85頁
文件大?。?/td> 387K
代理商: ML60851EGA
FEDL60851E-01
OKI Semiconductor
ML60851E
60/84
DMA Transfer Timing (8)
Memory to ML60851E (Demand Transfer, Dual Address Mode)
Parameter
Symbol
Condition
Min.
Max.
Unit
Note
DREQ Disable Time
t1
Load 20 pF
20
ns
FIFO Access Time
t2
FIFO WRITE
42
ns
1
CS Hold Time
t3
0
ns
Write Data Setup Time
t4
30
ns
Write Data Hold Time
t5
2
ns
8-bit DMA
63
ns
2
Recovery Time
t6
16-bit DMA
105
ns
3
Notes: 1. When in Dual Address mode, the DACK is ignored.
A7:A0 specifies the FIFO address.
Refer to WRITE Timing (1) for Address Setup Time and Address Hold Time.
t2 is defined depending on CS or WR 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)
(Note) Refer to the previous page.
A7:A0
DREQ
CS
t1
t3
t6
t2
t4
t5
Last Packet Write
(Note)
WR
DIN
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