參數(shù)資料
型號(hào): LXT9880HC
英文描述: Controller Miscellaneous - Datasheet Reference
中文描述: 控制器雜項(xiàng)-數(shù)據(jù)表參考
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代理商: LXT9880HC
LXT980/980A Dual-Speed, 5-Port Fast Ethernet Repeater
Datasheet
77
Figure 40. Serial Management Interface Timing
Table 47. Serial Interface Timing Characteristics
1
Parameter
Symbol
Min
Typ
1
Max
Units
Test Conditions
SERCLK input frequency
2.0
MHz
Depending on RECONFIG, this is either an
input or output.
SERCLK output frequency
625
kHz
Data to clock setup time
t15A
0
ns
SRX valid to SERCLK rising edge.
2
Clock to data hold time
t15B
200
ns
SERCLK rising edge to SRX change.
2
Data propagation delay
t15C
200
ns
SERCLK falling edge to STX valid.
3
1. Typical values are at 25
°
C and are for design aid only; they are not guaranteed and not subject to production testing.
2. Input.
3. Output.
t15A
t15B
t15C
SERCLK
SRX
STX
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