參數(shù)資料
型號(hào): IXF440
英文描述: LAN HUB CONTROLLER
中文描述: 局域網(wǎng)集線器控制器
文件頁(yè)數(shù): 16/100頁(yè)
文件大?。?/td> 1354K
代理商: IXF440
IXF440 Multiport 10/100 Mbps Ethernet Controller
16
Datasheet
2.2
Pin Count
Table 3
summarizes the IXF440 pin count.
2.3
Connection Rules
All the reserved pins must remain unconnected.
All the OD (Open Drain) signals must be connected to a pull-up device.
All signals connected to a fixed value should be connected through a resistive device. The
following are recommended resistor values:
Unused I/O pins: 10 K
pull-up
Unused I pins: 1
10 K
pull-up or pull-down
Unused O pins: no pull-up required
OD pins: R=T/C (required signal deassertion time (T) divided by capacitive load (C))
Table 3. IXF440 Pin Count
Pin
Common
Per Port
Total
CPU
26
1/1 of cint{i}_l
1
1. The number to the right of the slash applies when operating in Split.
34/27
1
FIFO
87/92
1
3
111/116
1
MII/SYM
2
16
130
JTAG
4
4
Total I/O
119
20
279
Gnd
28
28
Vdd
24
24
Reserved
21
21
Total
352
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