參數(shù)資料
型號: UPD720122GC-9EU
廠商: NEC Corp.
英文描述: MOS Integrated Circuit
中文描述: 馬鞍山集成電路
文件頁數(shù): 38/82頁
文件大?。?/td> 650K
代理商: UPD720122GC-9EU
Data Sheet S16685EJ2V0DS
38
μ
PD720122
(a) CPU bus DMA read transfer vs. write transfer timing
Symbol
Parameter
Min.
Typ.
Max.
Unit
T68
RDB vs. WRB command inactive time
34
ns
Remark
It is assumed that the external pin capacitance is 15 pF (data bus = 50 pF).
EP1_DACKB
RDB
EP1_DRQB
EP2_DACKB
WRB
EP2_DRQB
t
45
t
57
t
58
t
68
Low level
Low level
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