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DS36C278

Low

Power

Multipoint

EIA-RS-485

Transceiver

Physical Dimensions

inches (millimeters) (Continued)

8-Lead (0.300

×

Wide) Molded Dual-In-Line Package

Order Number DS36C278TN, DS36C278N

NS Package Number N08E

LIFE SUPPORT POLICY

NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL
SEMICONDUCTOR CORPORATION. As used herein:

1. Life support devices or systems are devices or

2. A critical component is any component of a life

systems which, (a) are intended for surgical implant

support device or system whose failure to perform can

into the body, or (b) support or sustain life, and whose

be reasonably expected to cause the failure of the life

failure to perform, when properly used in accordance

support device or system, or to affect its safety or

with instructions for use provided in the labeling, can

effectiveness.

be reasonably expected to result in a significant injury
to the user.

National Semiconductor

National Semiconductor

National Semiconductor

National Semiconductor

Corporation

Europe

Hong Kong Ltd.

Japan Ltd.

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National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.

Summary of Contents for DS36C278 s and

Page 1: ...en the inputs are left open The DS36C278T is fully specified over the industrial temper ature range b40 C to a85 C Features Y 100 RS 485 compliant Guaranteed RS 485 device interoperation Y Low power C...

Page 2: ...ERENTIAL DRIVER CHARACTERISTICS VOD1 Differential Output Voltage IO e 0 mA No Load 485 422 1 5 5 0 V VOD0 Output Voltage IO e 0 mA 0 5 0 V VOD0 Output Voltage Output to GND 0 5 0 V VOD2 Differential O...

Page 3: ...CE CHARACTERISTICS VIH High Level Input Voltage RE DE DI 2 0 VCC V VIL Low Level Input Voltage GND 0 8 V IIH High Level Input Current VIH e VCC 2 mA IIL Low Level Input Current VCC e 5V VIL e 0V b2 mA...

Page 4: ...Note 2 Current into device pins is defined as positive Current out of device pins is defined as negative All voltages are referenced to ground except VOD1 and VOD2 Note 3 All typicals are given for VC...

Page 5: ...7 FIGURE 7 TRI STATE Test Circuit tPZH tPHZ TL F 12040 8 FIGURE 8 TRI STATE Waveforms tPZH tPHZ TL F 12040 9 FIGURE 9 TRI STATE Test Circuit tPZL tPLZ TL F 12040 10 FIGURE 10 TRI STATE Waveforms tPZL...

Page 6: ...eiver Differential Propagation Delay Waveforms TL F 12040 14 FIGURE 14 Receiver TRI STATE Test Circuit TL F 12040 15 FIGURE 15 Receiver Enable and Disable Waveforms tPLZ tPZL TL F 12040 16 FIGURE 16 R...

Page 7: ...is would allow signals to be transferred to and from each indi vidual seat to 1 main station Usually there is one or two less seats in the last row of the aircraft near the restrooms and food storage...

Page 8: ...http www national com 8...

Page 9: ...Physical Dimensions inches millimeters 8 Lead 0 150 Wide Molded Small Outline Package JEDEC Order Number DS36C278TM DS36C278M NS Package Number M08A http www national com 9...

Page 10: ...rdance support device or system or to affect its safety or with instructions for use provided in the labeling can effectiveness be reasonably expected to result in a significant injury to the user Nat...

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