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DM9081F bảng dữ liệu(PDF) 3 Page - Davicom Semiconductor, Inc.

tên linh kiện DM9081F
Giải thích chi tiết về linh kiện  10BASE-T Hub Controller
PDF  22 Pages
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nhà sản xuất  DAVICOM [Davicom Semiconductor, Inc.]
Trang chủ  http://www.davicom.com.tw
Logo DAVICOM - Davicom Semiconductor, Inc.

DM9081F bảng dữ liệu(HTML) 3 Page - Davicom Semiconductor, Inc.

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DM9081
10BASE-T Hub Controller
Final
3
Version: DM9081-DS-F02
February 02, 2001
Features
Repeater functions comply with IEEE 802.3
Repeater Unit specification
Eight Integral 10BASE-T transceivers utilize the
required pre-distortion transmission technique
Two Attachment Unit Interface (AUI) ports allow
connection with 10BASE5 (Ethernet) and
10BASE2
(Cheapernet) networks
Design a Dumb Hub in minimum mode by using
minimum external logic that can respond to Link,
Carrier Sense and Collision Status from LED
Supports one LED output per port for additional
status indicators such as Link, Partition, Carrier
Sense, etc.
Built-in Jabber LED reports global Jabber
information of the DM9081 Hub
Built-in Traffic LED indicates Hub global 10MHz
bandwidth utilization status
Expandable to accommodate two DM9081
connections, with no external logic required
On board PLL, Manchester encoder/decoder and
FIFO
Expandable to accommodate increased number of
repeater ports. Recommended IC cascade number:
under 3 and inclusive
Preamble loss effects eliminated by deep FIFO
Each port can be isolated (partitioned) and
reconnected separately
Twisted Pair Link Test capability
Full amplitude and timing regeneration for
retransmitted signals
Low power CMOS process with single 5V supply
100-pin QFP package
Pin Configuration
DTPO3-
TPO3-
DVDD
DVDD
LI/RX7
LI/RX6
LI/RX5
LI/RX4
DVDD
LI/RX3
LI/RX1
LI/RX0
LI/RX2
AUI2_CRS_LED
X1
COL_LED
RESET#
TESTPIN1
TESTPIN0
DGND
EXPIN#
DAT
EXPOUT#
TCK
NC
X2
NC
DVDD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
28
30
27
29
80
79
78
77
76
75
74
72
73
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
CDP2
CDN2
RXP2
RXN2
TXP2
TXN2
CDP1
CDN1
RXP1
AGND
RXD0-
RXD1+
RXD2-
RXD3+
RXD3-
RXD4+
RXD4-
RXD5+
RXD5-
RXD6+
RXD6-
RXD7+
RXD7-
DM9081F
DGND
AUI1_CRS_LED
RXD2+
RXD1-
RXD0+
AVDD
TXN1
TXP1
RXN1
LED_LATCH
AUI_LED
TP_BIT_LED
TP_POL_LED
TP_JAB_LED
TRAFFIC_LED
TP_PAR_LED
TP_LINK_LED



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