SN75LBC088 Datasheet, PDF (1/16 Pages) Texas Instruments – AUI CONCENTRATOR

SN75LBC088
AUI CONCENTRATOR
• Meets or Exceeds the Standards Set by ISO
8802.3:1990 and ANSI/IEEE 802.3-1990
• Receiver Squelch Circuit Integrity Improved
With Noise Filter
• Differential (Twisted-Pair) I/O Driver and
Receiver
• 84-Pin, Plastic Leaded Chip Carrier (PLCC)
Package
SLLS150A – DECEMBER 1992 – REVISED MAY 1993
• Control Logic Function for Local and
Global Modes
• Low Port-to-Port Data Propagation Delay
• Drives Twisted-Pair Transmission Lines Up
to 50 Meters
• Collision Detection for Multiple-User
Networks
FN PACKAGE
(TOP VIEW)
SRX2 +
SRX2 –
DRVDD2
SCL2 +
SCL2 –
STX2 +
STX2 –
DRVSS2
RCVDD1
RCVSS1
SMARTSQE
GTX +
GTX –
DRVDD3
STX3 +
STX3 –
SCL3 +
SCL3 –
DRVSS3
SRX3 +
SRX3 –
11 10 9 8 7 6 5 4 3 2 1 84 83 82 81 80 79 78 77 76 75
12
74
13
73
14
72
15
71
16
70
17
69
18
68
19
67
20
66
21
65
22
64
23
63
24
62
25
61
26
60
27
59
28
58
29
57
30
56
31
55
32
54
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53
SRX7 –
SRX7 +
DRVSS7
SCL7 –
SCL7 +
STX7 –
STX7 +
DRVDD7
LOCAL
RCVSS2
GCL –
GCL +
RCVDD2
DRVSS6
STX6 –
STX6 +
SCL6 –
SCL6 +
DRVDD6
SRX6 –
SRX6 +
description
The SN75LBC088 attachment unit interface (AUI) concentrator chip (ACC) incorporates eight data terminal
equipment (DTE) or station ports and one medium attachment unit (MAU) or global port on the same chip for
connection to a local area network (LAN). Each station port emulates the driver/receiver functionality, timing,
and signal response of a transceiver or MAU designed to meet the IEEE 802.3-1990 standard. The functional
components of the ACC are a differential driver, collision detection driver, and a differential line receiver/squelch.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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Copyright © 1993, Texas Instruments Incorporated
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