參數(shù)資料
型號: DS21Q48N
英文描述: 5V E1/T1/J1 Line Interface
中文描述: 5V的E1/T1/J1線路接口
文件頁數(shù): 66/75頁
文件大小: 544K
代理商: DS21Q48N
DS2148/Q48
66 of 75
AC CHARACTERISTICS—NONMULTIPLEXED PARALLEL PORT
(BIS1 = 0, BIS0 = 1) (-40 C to +85 C; V
DD
= 5.0V 5%)
PARAMETER
SYMBOL
MIN
Setup Time for A0 to A4, Valid
to CS* Active
Setup Time for CS* Active to
Either RD*, WR*, or DS*
Active
Delay Time From Either RD*
or DS* Active to Data Valid
Hold Time From Either RD*,
WR*, or DS* Inactive to CS*
Inactive
Hold Time From CS* Inactive
to Data Bus 3-State
Wait Time From Either WR* or
DS* Active to Latch Data
Data Setup Time To Either
WR* or DS* Inactive
Data Hold Time From Either
WR* or DS* Inactive
Address Hold From Either WR*
or DS* Inactive
See Figure 12-4, Figure 12-5, Figure 12-6, and Figure 12-7
TYP
MAX
UNITS
ns
NOTES
t1
0
t2
0
ns
t3
75
ns
t4
0
ns
t5
5
20
ns
t6
75
ns
t7
10
ns
t8
10
ns
t9
10
ns
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