參數(shù)資料
型號: AM79C989
廠商: Advanced Micro Devices, Inc.
元件分類: 基準電壓源/電流源
英文描述: Motor Driver IC; Supply Voltage Max:13.2V; Output Current Max:0.5A; Package/Case:8-SOIC; Driver Type:Motor; Leaded Process Compatible:No; Output Current:1.5A; Peak Reflow Compatible (260 C):No; Supply Voltage Min:3.8V
中文描述: 四路以太網交換器(QuEST的⑩)
文件頁數(shù): 32/37頁
文件大?。?/td> 198K
代理商: AM79C989
32
Am79C989
P R E L I M I N A R Y
QuASI Interface
Figure 2.
QuASI Interface Timing Diagram
Not Defined
Channel 0
Channel 1
Channel 2
Channel 3
Channel 0
Channel 1
Channel 3
Channel 0
Channel 1
Channel 2
Channel 3
SCLK
QRST/STRB
QTX_EN
QTX_DATA
QRX_DATA
QRX_VALID
QRX_CRS
QCLSN
1
3
4
9
6
7
5
2
3
2
8
9B
Not defined
21173B-6
No.
Symbol
Parameter Description
Min
Max
Unit
1
t
MSI1
SCLK Period (40 MHz, 100 ppm).
Not Tested.
24.9975
25.0025
ns
2
t
MSI2
QRST/STRB hold time after rising edgeof SLCK.
3
ns
3
t
MSI3
QRST/STRB setup time to rising edge of SCLK.
5
ns
4
t
MSI4
SCLK high time.
10
ns
5
t
MSI5
SCLK low time.
10
ns
6
t
MSI6
QTX_EN and QTX_DATA setup time to rising edge of SCLK.
3
ns
7
t
MSI7
QTX_EN and QTX_DATA hold time from rising edge of SCLK.
5
ns
8
t
MSI8
QRX_DATA, QRX_VALID, QCLSN, QRX_CRS delay until valid
from rising edge of SCLK.
4
17.5
ns
9
t
MSI9
Reset Pulse Width of QRST/STRB.
Parameter tested functionally.
1
μ
s
9B
t
MSI9B
Strobe Pulse Width of QRST/STRB.
9
25
ns
相關PDF資料
PDF描述
AM79C989JC Quad Ethernet Switching Transceiver (QuEST⑩)
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相關代理商/技術參數(shù)
參數(shù)描述
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