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參數(shù)資料
| 型號(hào)： | M54617P |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | LAN TRANSCEIVER |
| 中文描述： | 網(wǎng)絡(luò)收發(fā)器 |
| 文件頁(yè)數(shù)： | 3/8頁(yè) |
| 文件大小： | 116K |
| 代理商： | M54617P |
LAN TRANSCEIVER
M54617P
MITSUBISHI <CONTROL / DRIVER IC>
Table 1. Abnormality mode and abnormality detection function
Abnormality mode
Error output
BUS(+)
1
2
3
4
5
6
7
GND short
V
DD
short
Open
GND short
V
DD
short
Open
BUS(-)
BUS(+) and BUS(-) short
Communication after
abnormality is detected
Yes
Yes
Yes
Yes
Yes
Yes
No
Abnormality
detection method
(2)
(1), (2)
(2)
(1), (2)
(2)
(2)
(1)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
STANDBY MODE
The M54617P can be set to the low current dissipation mode by
turning STB pin (pin 2) to level “L”.
Standby mode does not allow the driver and overcurrent detection
function to be operated, but logic abnormality detection function
operates, which permits detection other than abnormality relating
to overcurrent detection. However, it provides error signal output
only, but no switching of Rx output signal.
Rx output when in the standby mode outputs the logic sum of
BUS(+) and BUS(-) signals.
ERROR RESET
Error output of the M54617P can be reset by turning to the standby
mode (STB pin (pin 2) = “L”), followed by inputting “H” level to ERR
pin (pin 3). In this case, all operations are cleared that relate to
abnormality detection including overcurrent detection and switching
of Rx output.
1
Tx and STB input
2
ERR I/O
3
Rx output
4
BUS(+) and BUS(-) I/O
I/O EQUIVALENT CIRCUIT
BUS (+)
BUS (-)
Filter time constant
RC = 110E-9 (standard)
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