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产品型号MC3487N的概述

一、芯片MC3487N的概述 MC3487N是一款卓越的高速差分线路驱动芯片，主要用于串行通信中的信号传输和接收。作为一种专为RS-485和RS-422通讯标准设计的器件，MC3487N在差分信号传输中表现出色，广泛应用于工业自动化、数据采集系统以及远程传感器网络等领域。 MC3487N采用CMOS工艺制造，具备低功耗特性和较高的集成度，使其在效率和体积上具有较大优势。其稳定的工作性能和低共模干扰能力使其在复杂电磁环境中依然能够可靠运行，从而保证了数据的完整性和传输的稳定性。二、芯片MC3487N的详细参数 MC3487N的主要参数包括： - 工作电压：4.75V至5.25V，适应多种电源环境。 - 输入电压范围：-200mV至+200mV，确保良好的信号识别能力。 - 输出电流：最大输出电流为±60mA，根据负载情况而设定。 - 传输速率：最高可达到10Mbps，适用于高速数据传输...

产品型号MC3487N的Datasheet PDF文件预览

MC3487

QUADRUPLE DIFFERENTIAL LINE DRIVER

SLLS098A – MAY 1980 – REVISED MAY 1995

D OR N PACKAGE

(TOP VIEW)

Meets or Exceeds Requirements of ANSI

EIA/TIA-422-B and ITU

Recommendation V.11

3-State, TTL-Compatible Outputs

Fast Transition Times

High-Impedance Inputs

1,2EN

12 3,4EN

11 3Z

Single 5-V Supply

Power-Up and Power-Down Protection

Designed to Be Interchangeable With

Motorola MC3487

GND

description

The MC3487 offers four independent differential line drivers designed to meet the specifications of ANSI

EIA/TIA-422-B and ITU Recommendation V.11. Each driver has a TTL-compatible input buffered to reduce

current and minimize loading.

The driver outputs utilize 3-state circuitry to provide high-impedance states at any pair of differential outputs

when the appropriate output enable is at a low logic level. Internal circuitry is provided to ensure a

high-impedance state at the differential outputs during power-up and power-down transition times provided the

output enable is low. The outputs are capable of source or sink currents of 48 mA.

The MC3487 is designed for optimum performance when used with the MC3486 quadruple line receiver. It is

supplied in a 16-pin dual-in-line package and operates from a single 5-V supply.

The MC3487 is characterized for operation from 0°C to 70°C.

†

logic symbol

logic diagram (positive logic)

1,2EN

3,4EN

†

This symbol is in accordance with ANSI/IEEE Std 91-1984

and IEC Publication 617-12.

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.

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.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

MC3487

QUADRUPLE DIFFERENTIAL LINE DRIVER

SLLS098A – MAY 1980 – REVISED MAY 1995

FUNCTION TABLE

(each driver)

OUTPUTS

OUTPUT

ENABLE

INPUT

H = TTL high level, L = TTL low level,

X = irrelevant, Z = High impedance

schematics of inputs and outputs

EQUIVALENT OF EACH INPUT

TYPICAL OF ALL OUTPUTS

Input

9 Ω NOM

Output

†

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

Supply voltage, V

(see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 V

Input voltage, V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V

Output voltage, V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V

Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table

Operating free-air temperature range, T

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C

Storage temperature range, T

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C

stg

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: D or N package . . . . . . . . . . . . . . . . 260°C

†

Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTE 1: All voltage values, except differential output voltage, V , are with respect to the network ground terminal.

DISSIPATION RATING TABLE

≤ 25°C

DERATING FACTOR

T = 70°C

POWER RATING

PACKAGE

POWER RATING

ABOVE T = 25°C

950 mW

7.6 mW/°C

9.2 mW/°C

608 mW

1150 mW

736 mW

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

MC3487

QUADRUPLE DIFFERENTIAL LINE DRIVER

SLLS098A – MAY 1980 – REVISED MAY 1995

recommended operating conditions

MIN NOM

MAX

UNIT

Supply voltage, V

4.75

5.25

High-level input voltage, V

Low-level input voltage, V

0.8

Operating free-air temperature, T

°C

electrical characteristics over recommended ranges of supply voltage and operating free-air

temperature (unless otherwise noted)

PARAMETER

Input clamp voltage

TEST CONDITIONS

MIN

2.5

MAX

UNIT

I = –18 mA

–1.5

High-level output voltage

Low-level output voltage

Differential output voltage

Change in magnitude of

differential output voltage

Common-mode output voltage

Change in magnitude of

= 0.8 V,

= 100 Ω,

= 2 V,

= –20 mA

= 48 mA

0.5

See Figure 1

∆|V

= 100 Ω,

±0.4

†

‡

∆|V

±0.4

†

common-mode output voltage

= 6 V

100

–100

100

Output current with power off

= 0

µA

= –0.25 V

= 2.7 V

= 0.5 V

High-impedance-state output current

Output enables at 0.8 V

V = 5.5 V

µA

–100

Input current at maximum input volt-

age

100

High-level input current

Low-level input current

V = 2.7 V

µA

V = 0.5 V

–400

Short-circuit output current

V = 2 V

–40 –140

Outputs disabled

Outputs enabled,

105

Supply current (all drivers)

No load

†

∆ |V

level.

| and ∆ |V

| are the changes in magnitude of V

and V

, respectively, that occur when the input is changed from a high level to a low

‡

In ANSI Standard EIA/TIA-422-B, V , which is the average of the two output voltages with respect to ground, is called output offset voltage,

Only one output at a time should be shorted, and duration of the short circuit should not exceed one second.

switching characteristics over recommended operating free-air temperature range , V

= 5 V

PARAMETER

TEST CONDITIONS

MIN

MAX

UNIT

Propagation delay time, low- to high-level output

Propagation delay time, high- to low-level output

Skew time

PLH

PHL

= 15 pF,

See Figure 2

See Figure 3

Differential-output transition time

Output enable time to high level

Output enable time to low level

Output disable time from high level

Output disable time from low level

= 15 pF,

= 50 pF,

t(OD)

PZH

PZL

See Figure 4

PHZ

PLZ

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

MC3487

QUADRUPLE DIFFERENTIAL LINE DRIVER

SLLS098A – MAY 1980 – REVISED MAY 1995

PARAMETER MEASUREMENT INFORMATION

50 Ω

Figure 1. Differential and Common-Mode Output Voltages

3 V

0 V

1.5 V

Input

5 V

200 Ω

PHL

PLH

SW1

1.5 V

Y Output

Generator

(see Note A)

50 Ω

= 15 pF

Skew

(see Note B)

PLH

PHL

3 V

See Note C

Z Output

1.5 V

TEST CIRCUIT

VOLTAGE WAVEFORMS

NOTES: A. The input pulse is supplied by a generator having the following characteristics: t ≤ 5 ns, t ≤ 5 ns, PRR ≤ 1 MHz, duty cycle = 50%,

= 50 Ω.

includes probe and stray capacitance.

C. All diodes are 1N916 or 1N3064.

Figure 2. Test Circuit and Voltage Waveforms

3 V

Input

= 100 Ω

0 V

Output

Generator

(see Note A)

t(OD)

50 Ω

3 V

90%

10%

Output

= 15 pF

(see Note B)

TEST CIRCUIT

VOLTAGE WAVEFORMS

NOTES: A. The input pulse is supplied by a generator having the following characteristics: t ≤ 5 ns, t ≤ 5 ns, PRR ≤ 1 MHz, duty cycle = 50%,

= 50 Ω.

includes probe and stray capacitance.

Figure 3. Test Circuit and Voltage Waveforms

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

MC3487

QUADRUPLE DIFFERENTIAL LINE DRIVER

SLLS098A – MAY 1980 – REVISED MAY 1995

PARAMETER MEASUREMENT INFORMATION

5 V

Output

200 Ω

SW3

SW1

0 V or 3 V

See Note C

SW2

1 kΩ

= 15 pF

Generator

(see Note A)

(see Note B)

50 Ω

TEST CIRCUIT

Output

Enable Input

Output

Enable Input

3 V

0 V

3 V

1.5 V

0 V

PHZ

PZL

SW1 Closed

SW2 Open

0.5 V

SW1 Closed

SW2 Closed

≈ 1.5 V

Output

PZH

PLZ

≈ 1.5 V

SW1 Closed

SW2 Closed

1.5 V SW1 Open

SW2 Closed

VOLTAGE WAVEFORMS

NOTES: A. The input pulse is supplied by a generator having the following characteristics: t ≤ 5 ns, t ≤ 5 ns, PRR ≤ 1 MHz, duty cycle = 50%,

= 50 Ω.

includes probe and stray capacitance.

C. All diodes are 1N916 or 1N3064.

Figure 4. Driver Test Circuit and Voltage Waveforms

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

IMPORTANT NOTICE

Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue

any product or service without notice, and advise customers to obtain the latest version of relevant information

to verify, before placing orders, that information being relied on is current and complete. All products are sold

subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those

pertaining to warranty, patent infringement, and limitation of liability.

TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in

accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent

TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily

performed, except those mandated by government requirements.

CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF

DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL

APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR

WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER

CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO

BE FULLY AT THE CUSTOMER’S RISK.

In order to minimize risks associated with the customer’s applications, adequate design and operating

safeguards must be provided by the customer to minimize inherent or procedural hazards.

TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent

that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other

intellectual property right of TI covering or relating to any combination, machine, or process in which such

semiconductor products or services might be or are used. TI’s publication of information regarding any third

party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.

MC3487N相关文章

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MC3487N产品参数

型号:	MC3487N
Brand Name：	Texas Instruments
是否Rohs认证：	符合
生命周期：	Active
IHS 制造商：	TEXAS INSTRUMENTS INC
零件包装代码：	DIP
包装说明：	DIP-16
针数：	16
Reach Compliance Code：	compliant
ECCN代码：	EAR99
HTS代码：	8542.39.00.01
风险等级：	1.16
Samacsys Confidence：	3
Samacsys Status：	Released
Samacsys PartID：	181487
Samacsys Pin Count：	16
Samacsys Part Category：	Integrated Circuit
Samacsys Package Category：	Dual-In-Line Packages
Samacsys Footprint Name：	N (R-PDIP-T)
Samacsys Released Date：	2017-01-12 12:59:53
Is Samacsys：	N
差分输出：	YES
驱动器位数：	4
高电平输入电流最大值：	0.00005 A
输入特性：	STANDARD
接口集成电路类型：	LINE DRIVER
接口标准：	EIA-422-B; TIA-422-B; V.11
JESD-30 代码：	R-PDIP-T16
JESD-609代码：	e4
长度：	19.305 mm
功能数量：	4
端子数量：	16
最高工作温度：	70 °C
最低工作温度：
最小输出摆幅：	2 V
输出特性：	3-STATE
输出极性：	COMPLEMENTARY
封装主体材料：	PLASTIC/EPOXY
封装代码：	DIP
封装等效代码：	DIP16,.3
封装形状：	RECTANGULAR
封装形式：	IN-LINE
峰值回流温度（摄氏度）：	NOT SPECIFIED
电源：	5 V
认证状态：	Not Qualified
最大接收延迟：
座面最大高度：	5.08 mm
子类别：	Line Driver or Receivers
最大压摆率：	85 mA
最大供电电压：	5.25 V
最小供电电压：	4.75 V
标称供电电压：	5 V
电源电压1-最大：	5.25 V
电源电压1-分钟：	4.75 V
电源电压1-Nom：	5 V
表面贴装：	NO
技术：	BIPOLAR
温度等级：	COMMERCIAL
端子面层：	Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：	THROUGH-HOLE
端子节距：	2.54 mm
端子位置：	DUAL
处于峰值回流温度下的最长时间：	NOT SPECIFIED
最大传输延迟：	20 ns
宽度：	7.62 mm
Base Number Matches：	1

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