參數資料
型號: LXT384BE
元件分類: 通信、網絡模塊及開發(fā)工具
英文描述: Telecomm/Datacomm
中文描述: 電信/數據通信
文件頁數: 69/80頁
文件大?。?/td> 1112K
代理商: LXT384BE
Octal T1/E1/J1 Transceiver
LXT384
Datasheet
69
Table 50. Motorola Mode Write Timing Characteristics
2
Parameter
Sym
Min.
Typ
1
Max
Unit
Test Conditions
Address setup time to address strobe
Tsas
10
ns
Address hold time to address strobe
Thas
5
ns
Valid address strobe pulse width
Tvas
95
ns
R/W setup time to active data strobe
Tsrw
10
ns
R/W hold time from inactive data strobe
Thrw
0
ns
Chip select setup time to active data strobe
Tscs
0
ns
Chip select hold time from inactive data strobe
Thcs
0
ns
Address strobe active to data strobe active delay
Tasds
20
ns
Data setup time to DS deassertion
Tsdw
40
ns
Data hold time from DS deassertion
Thdw
30
ns
Valid data strobe pulse width
Tvds
60
ns
Inactive data strobe to inactive INT delay time
Tint
10
ns
Data strobe inactive to address strobe inactive delay
Tdsas
15
ns
Active data strobe to ACK output enable time
Tdack
0
12
ns
DS asserted to ACK asserted delay
Tdackp
40
ns
1. Typical figures are at 25 C and are for design aid only; not guaranteed and not subject to production
testing.
2. C
L
= 100pF on D0-D7, all other outputs are loaded with 50pF.
Figure 27. Non-Multiplexed Motorola Mode Write Timing
A4-A0
ADDRESS
D7-D0
tSAS
tHAS
tSRW
tSCS
tVDS
tDACKP
tHRW
tHCS
tSDW
tHDW
WRITE DATA
tINT
tDACK
AS
R/W
CS
INT
ACK
DS
(pulled High)
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