TMS38054
RING INTERFACE DEVICE
SPWS008C – APRIL 1991 – REVISED MAY 1997
D
D
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Facilitates Connection of the TI380C25,
TI380C27, or TMS380C26 to a Token-Ring
Network™
Compatible With Electrical Interface of
ISO/IEC IEEE Std 802.5:1992 Token-Ring
Access Method and Physical-Layer
Specifications
Constant-Gain Phase Detector for
Unshielded Twisted Pair (UTP) Applications
Phase-Locked Loop (PLL) for Clock
Generation and Data Signal Recovery
Independent Transmit and Receive
Channels
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Phantom Drive for Physical Insertion Onto
Ring
16-Mbps and 4-Mbps Token-Ring Data
Rates
Integrated Receiver Frequency Equalization
Loop Back (Wrap Mode) for Self-Test
Diagnostics
On-Chip Watchdog Timer
ESD Protection Meets 1.5 kV Per
MIL-STD-883C, Method 3015
Advanced Low-Power Schottky Technology
Packaged in Plastic J-Leaded Chip Carrier
FN PACKAGE
(TOP VIEW)
SPSW
NC
VCOGAN
GNDA1
V
CCA1
FILTER
GNDA1
NC
GNDA1
STERES
GNDA1
GNDB
ENABLE
V
CCB
RCLK
RCVR
GNDB
EQUALA
EQUALB
RCVHYS
V
CCA2
GNDA2
6 5 4
7
8
9
10
11
12
13
14
15
16
17
18 19 20 21 22 23 24 25 26 27 28
3
2 1 44 43 42 41 40
39
38
37
36
35
34
33
32
31
30
29
GNDA2
RCVINA
RCVINB
WRAP
DRVR
DRVR
V
CCD
DROUTA
DROUTB
GNDRV
PHOUTB
REDY
NRGCAP
GNDD
V
CCD
NC – No internal connection
description
The TMS38054 ring interface device and its associated external passive components form a full-duplex
electrical interface to the token ring. Coupling the TMS38054 with one of the TMS380 family of commprocessors
forms a highly integrated token-ring LAN adapter compatible with the ISO/IEC IEEE Std 802.5:1992 token-ring
access method and physical-layer specifications.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Token-Ring Network is a trademark of International Business Machines Corporation.
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.
FRAQ
XTAL
NSRT
WDTCAP
WFLT
PHOUTA
GNDD
Copyright
©
1997, Texas Instruments Incorporated
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
1
TI [ TEXAS INSTRUMENTS ]
