参数资料
型号: ML60851CTB
厂商: LAPIS SEMICONDUCTOR CO LTD
元件分类: 总线控制器
英文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP44
封装: 10 X 10 MM, 0.80 MM PITCH, PLASTIC, TQFP-44
文件页数: 51/68页
文件大小: 442K
代理商: ML60851CTB
ML60851C
Semiconductor
54/67
PEDL60851C-02
DMA Transfer Timing (3)
ML60851C to Memory (Demand Transfer, Single Address Mode)
Parameter
Symbol
Condition
Note
DREQ Disable Time
t1
DACK Hold Time
t2
Read Data Delay Time
t3
t4
1
Unit
ns
Max.
Min.
0—
25
Data Hold Time
Recovery Time
t5
2
ns
63
Load 20 pF
8-bit DMA
16-bit DMA
20
25
0
105
3
Notes: 1. When in Single Address mode, t3 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).
t3
t1
t2
Last Packet Read
DREQ
DACK
RD
DOUT
t5
t4
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