Datasheet > DS36C279_00

DS36C279_00

更新时间： 2024-11-06 04:15:15

品牌	Logo	应用领域
美国国家半导体 - NSC		/
页数	文件大小	规格书
10页	568K
描述
Low Power EIA-RAS-485 Transceiver with Sleep Mode

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中文翻译

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DS36C279_00 数据手册

July 2000

DS36C279

Low Power EIA-RS-485 Transceiver with Sleep Mode

General Description

Features

n 100% RS-485 compliant

The DS36C279 is a low power differential bus/line trans-

ceiver designed to meet the requirements of RS-485 Stan-

dard for multipoint data transmission. In addition it is com-

patible with TIA/EIA-422-B.

— Guaranteed RS-485 device interoperation

n Low power CMOS design: I_CC500 µA max

n Automatic sensing sleep mode

— Reduces I_CCto 10 µA maximum

n Built-in power up/down glitch-free circuitry

The sleep mode feature automatically puts the device in a

power saving mode when both the driver and receiver are

††

disabled. The device is ideal for use in power conscious

— Permits live transceiver intersection/displacement

n SOIC packages

n Industrial temperature range: −40˚C to +85˚C

n On-board thermal shutdown circuitry

— Prevents damage to the device in the event of

excessive power dissipation

applications where the device may be disabled for extended

periods of time.

The driver and receiver outputs feature TRI-STATE^®capa-

bility. The driver outputs operate over the entire common

mode range of −7V to +12V. Bus contention or fault situa-

tions that cause excessive power dissipation within the de-

vice are handled by a thermal shutdown circuit, which forces

the driver outputs into a high impedance state.

n Wide common mode range: −7V to +12V

n Receive open input fail-safe (Note 1)

⁄

unit load (DS36C279): ≥ 128 nodes

unit load (DS36C279T): ≥ 64 nodes

The receiver incorporates a fail safe circuit which guarantees

a high output state when the inputs are left open.

†

n ESD (Human Body Model): ≥ 2 kV

n Drop-in replacement for:

— LTC485 MAX485 DS75176 DS3695

The DS36C279T is fully specified over the industrial tem-

perature range (−40˚C to +85˚C).

Connection and Logic Diagram

01205301

Order Number DS36C279M, DS36C279TM

See NS Package Number M08A

Truth Table

DRIVER SECTION

RE*

DO/RI

DO*/RI*

RECEIVER SECTION

RE*

RI-RI*

≥+0.2V

≤−0.2V

Z (Note 2)

OPEN (Note 1)

Note 1: Non-terminated, open input only

Note 2: Device enters sleep mode if enable conditions are held 600 ns

TRI-STATE^®is a registered trademark of National Semiconductor Corporation.

DS012053

www.national.com

12 3 4 5 6 7...10

中文翻译

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与DS36C279_00相关器件

型号	品牌	获取价格	描述	数据表
DS36C279_14	TI	获取价格	DS36C279 Low Power EIA-RS-485 Transceiver with Sleep Mode
DS36C279M	NSC	获取价格	Low Power EIA-RS-485 Transceiver with Sleep Mode
DS36C279M/NOPB	TI	获取价格	Low Power TIA/EIA-485 Transceiver with Sleep Mode 8-SOIC -40 to 85
DS36C279M/NOPB	NSC	获取价格	IC LINE TRANSCEIVER, PDSO8, PLASTIC, SOIC-8, Line Driver or Receiver
DS36C279MDC	NSC	获取价格	LINE TRANSCEIVER, UUC, DIE
DS36C279MWC	NSC	获取价格	IC LINE TRANSCEIVER, UUC, WAFER, Line Driver or Receiver
DS36C279MX	NSC	获取价格	暂无描述
DS36C279MX	TI	获取价格	LINE TRANSCEIVER, PDSO8, 0.150 INCH, PLASTIC, SOIC-8
DS36C279MX/NOPB	TI	获取价格	Low Power TIA/EIA-485 Transceiver with Sleep Mode 8-SOIC -40 to 85
DS36C279MX/NOPB	NSC	获取价格	IC LINE TRANSCEIVER, PDSO8, 0.150 INCH, PLASTIC, SOIC-8, Line Driver or Receiver

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