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PDF DS36C200M Data sheet ( Hoja de datos )

Número de pieza DS36C200M
Descripción Dual High Speed Bi-Directional Differential Transceiver
Fabricantes National Semiconductor 
Logotipo National Semiconductor Logotipo



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No Preview Available ! DS36C200M Hoja de datos, Descripción, Manual

June 1998
DS36C200
Dual High Speed Bi-Directional Differential Transceiver
General Description
The DS36C200 is a dual transceiver device optimized for
high data rate and low power applications. This device pro-
vides a single chip solution for a dual high speed
bi-directional interface. Also, both control pins may be routed
together for single bit control of datastreams. Both control
pins are adjacent to each other for ease of routing them to-
gether. The DS36C200 is compatible with IEEE 1394 physi-
cal layer and may be used as an economical solution with
some considerations. Please reference the application infor-
mation on 1394 for more information. The device is in a
14-lead small outline package. The differential driver outputs
provides low EMI with its low output swings typically 210 mV.
The receiver offers ±100 mV threshold sensitivity, in addition
to common-mode noise protection.
Features
n Optimized for DSS to DVHS interface link
n Compatible IEEE 1394 signaling voltage levels
n Operates above 100 Mbps
n Bi-directional transceivers
n 14-lead SOIC package
n Ultra low power dissipation
n ±100 mV receiver sensitivity
n Low differential output swing typical 210 mV
n High impedance during power off
Connection Diagram
Functional Diagram
DS012621-1
Note: * denotes active LOW pin
Order Number DS36C200M
See NS Package Number M14A
DS012621-2
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
© 1998 National Semiconductor Corporation DS012621
www.national.com

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DS36C200M pdf
Parameter Measurement Information (Continued)
DS012621-9
FIGURE 7. Receiver Propagation Delay and Transition Time Waveforms
DS012621-10
FIGURE 8. Receiver TRI-STATE Delay Test Circuit
DS012621-11
FIGURE 9. Receiver TRI-STATE Delay Waveforms
Application Information
TRUTH TABLES
The DS36C200 has two enable pins DE and RE*, however,
the driver and receiver should never be enabled simulta-
neously. Enabling both could cause multiple channel conten-
tion between the receiver output and the driving logic. It is
recommended to route the enables together on the PC
board. This will allow a single bit [DE/RE*] to control the
chip. This DE/RE* bit toggles the DS36C200 between Re-
ceive mode and Transmit mode. When the bit is asserted
HIGH the device is in Transmit mode. When the bit is as-
serted LOW the device is in Receive mode. The mode deter-
mines the function of the I/O pins: DI/RO, DO/RI+, and
DO/RI−.Please note that some of the pins have been identi-
fied by its function in the corresponding mode in the three
tables below. For example, in Transmit mode the DO/RI+ pin
is identified as DO+. This was done for clarity in the tables
only and should not be confused with the pin identification
throughout the rest of this document. Also note that a logic
low on the DE/RE* bit corresponds to a logic low on both the
DE pin and the RE* pin. Similarly, a logic high on the
DE/RE* bit corresponds to a logic high on both the DE pin
and the RE* pin.
5
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