78Q2120-64CG ETC [List of Unclassifed Manufacturers], 78Q2120-64CG Datasheet - Page 20
78Q2120-64CG
Manufacturer Part Number
78Q2120-64CG
Description
10/100BASE-TX Ethernet Transceiver
Manufacturer
ETC [List of Unclassifed Manufacturers]
Datasheet
1.78Q2120-64CG.pdf
(33 pages)
- Current page: 20 of 33
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78Q2120
10/100BASE-TX
Ethernet Transceiver
ELECTRICAL SPECIFICATIONS
DIGITAL TIMING CHARACTERISTICS
MII TRANSMIT INTERFACE
MII RECEIVE INTERFACE
CHARACTERISTICS
Setup Time: TX_CLK to
TXD[3:0], TX_EN, TX_ER
Hold Time: TX_CLK to
TXD[3:0], TX_EN, TX_ER
CKIN-to-TX_CLK Delay
TX_CLK Duty-Cycle
CHARACTERISTICS
Receive Output Delay:
RX_CLK to RXD[3:0],
RX_DV, RX_ER
RX_CLK Duty-Cycle
SYMBOL
SYMBOL
RX
T
TX
TX
RECEIVE OUTPUTS FROM THE 78Q2120
CKIN
DLY
SU
HD
TRANSMIT INPUTS TO THE 78Q2120
(continued)
CONDITIONS
CONDITIONS
20
MIN
MIN
15
20
40
10
40
0
NOM
NOM
MAX
MAX
35
60
30
60
UNIT
UNIT
ns
ns
ns
ns
%
%
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