DS9638CN各脚功能电路原理芯片引脚定义引脚图及功能IC贸易商-中国IC网-芯三七

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产品型号DS9638CN的概述

DS9638CN 芯片概述 DS9638CN 是一种高性能的模拟集成电路，广泛应用于各种电子设备中的数据通讯、信号处理和控制系统。该芯片属于数据传输领域，主要实现逻辑电平转换和信号调理功能，为系统提供稳定高效的信号处理能力。DS9638CN 采用双列直插式封装，便于在多种电路板上集成和应用。 DS9638CN 的详细参数 DS9638CN 的主要技术参数可以概括为以下几个方面： - 工作电压范围：该芯片的工作电压范围一般为 4.5V 至 15V，能够适应不同电源条件下的信号处理需求。 - 输入输出逻辑等级：输入逻辑电平为 TTL 兼容，输出逻辑等级同样符合 TTL 标准，能够有效实现 TTL 与 CMOS 之间的兼容操作。 - 开关速度：在不同的负载条件下，芯片的典型开关速度可达到 5ns，这使得 DS9638CN 能够处理较高频率的信号需求。 - 功耗：其静态功耗较低，通常在 10m...

产品型号DS9638CN的Datasheet PDF文件预览

May 1998

DS9638

RS-422 Dual High Speed Differential Line Driver

General Description

Features

n Single 5V supply

The DS9638 is a Schottky, TTL compatible, dual differential

line driver designed specifically to meet the EIA Standard

RS-422 specifications. It is designed to provide unipolar dif-

ferential drive to twisted pair or parallel wire transmission

lines. The inputs are TTL compatible. The outputs are similar

to totem pole TTL outputs, with active pull-up and pull-down.

The device features a short circuit protected active pull-up

with low output impedance and is specified to drive 50Ω

transmission lines at high speed. The mini-DIP provides high

package density.

n Schottky technology

n TTL and CMOS compatible inputs

n Output short circuit protection

n Input clamp diodes

n Complementary outputs

n Minimum output skew ( 1.0 ns typical)

n 50 mA output drive capability for 50Ω transmission lines

n Meets EIA RS-422 specifications

n Propagation delay of less than 10 ns

n “Glitchless” differential output

n Delay time stable with V_CCand temperature variations

(

2.0 ns typical) (Figure 3)

n Extended temperature range

Connection Diagram

8-Lead DIP

DS009622-1

Top View

Order Number DS9638CM or DS9638CN

See NS Package Number M08A or N08E

For Complete Military Product Specifications,

refer to the appropriate SMD or MDS.

Order Number DS9638MJ/883

See NS Package Number J08A

DS009622

www.national.com

Absolute Maximum Ratings (Note 2)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

Ceramic DIP (Soldering, 60 sec.)

Molded DIP (Soldering, 10 sec.)

Maximum Power Dissipation (Note 1) at 25˚C

Cavity Package

300˚C

265˚C

1300 mW

930 mW

Molded Package

Storage Temperature Range

SO Package

810 mW

Ceramic DIP

−65˚C to +175˚C

−65˚C to +150˚C

V_CCLead Potential to Ground

Input Voltage

−5V to 7V

−0.5V to +7V

Molded DIP and SO-8

Lead Temperature

Recommended Operating Conditions

DS9638M

DS9638C

Min

Typ

Max

5.5

Min

Typ

Max

5.25

−50

Units

Supply Voltage (V_CC

)

4.5

5.0

4.75

5.0

Output Current HIGH (I_OH

)

−50

˚C

Output Current LOW (I_OL

)

Operating Temperature (T

)

−55

125

Note 1: Derate cavity package 8.7 mW/˚C above 25˚C; derate molded DIP package 7.5 mW/˚C above 25˚C; derate SO package 6.5 mW˚C above 25˚C.

Electrical Characteristics (Notes 3, 4)

Over recommended operating temperature and supply voltage ranges, unless otherwise specified

Symbol

V_IH

Parameter

Input Voltage HIGH

Input Voltage LOW

Conditions

Min

Typ

Max

Units

2.0

V_IL

0˚C to +70˚C

−55˚C to +125˚C

0.8

0.5

V_IC

Input Clamp Voltage

Output Voltage HIGH

Min, I_I−18 mA

−1.0

3.5

−1.2

V_OH

V_CCMin,

I_OH−10 mA

2.5

2.0

V_IHV_{IH Min}

V_ILV_{IL Max}

I_OH−40 mA

V_OL

Output Voltage LOW

Min, V_IHV_{IH Min}

0.5

V_{IL Max}, I_OL40 mA

I_I

Input Current at Maximum

Input Voltage

Max, V_{I Max}5.5V

µA

I_IH

Input Current HIGH

Max, V_IH2.7V

µA

I_IL

Input Current LOW

Max, V_IL0.5V

−200

−150

I_OS

Output Short Circuit Current

Terminated Output Voltage

Output Balance

Max, V_O0V (Note 4)

−50

2.0

V_T, V

V_T–V

See Figure 1

0.4

3.0

0.4

100

_OS, V

Output Offset Voltage

Output Offset Balance

Output Leakage Current

_OS–V

I_X

25˚C

µA

−0.25V V_X5.5V

I_CC

Supply Current

(Both Drivers)

V_CC5.5V,

All input at 0V,

No Load

Note 2: “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices

should be operated at these limits. The tables of “Electrical Characteristics provide conditions for actual device operation.

Note 3: Unless otherwise specified min/max limits apply across the −55˚C to +125˚C temperature range for the DS9638M and across the 0˚C to +70˚C range for

25˚C.

the DS9638C. All typicals are given for V

5V and T

Note 4: All currents into the device pins are positive; all currents out of the device pins are negative. All voltages are referenced to ground unless otherwise specified.

Note 5: Only one output at a time should be shorted.

www.national.com

Switching Characteristics

V_CC5.0V, T_A25˚C.

Symbol

Parameter

Conditions

C_L15 pF

Min

Typ

Max

Units

t_PHL

t_PLH

t_f

Propagation Delay

R_L100Ω, See Figure 2

Fall Time, 90%–10%

Rise Time, 10%–90%

Skew Between Outputs

A/A and B/B

t_r

_PO–t_PO

1.0

DS009622-2

FIGURE 1. Equivalent Circuit

DC Test Circuit

DS009622-3

FIGURE 2. Terminated Output Voltage and Output Balance

www.national.com

DC Test Circuit (Continued)

DS009622-5

DS009622-4

Note 6: The pulse generator has the following characteristics:

includes probe and jig capacitance.

100 ns,

PRR 500 kHz, t

50Ω.

≤ 5.0 ns, Z

FIGURE 3. AC Test Circuit and Voltage Waveform

DS009622-6

DS009622-7

FIGURE 4. Typical Delay Characteristics

www.national.com

Physical Dimensions inches (millimeters) unless otherwise noted

Ceramic Dual-In-Line Package (J)

Order Number DS9638MJ/883

NS Package Number J08A

Ceramic Dual-In-Line Package (M)

Order Number DS9638CM

NS Package Number M08A

www.national.com

Physical Dimensions inches (millimeters) unless otherwise noted (Continued)

Molded Dual-In-Line Package (N)

Order Number DS9638CN

NS Package Number N08E

LIFE SUPPORT POLICY

NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DE-

VICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMI-

CONDUCTOR CORPORATION. As used herein:

1. Life support devices or systems are devices or sys-

tems which, (a) are intended for surgical implant into

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

ure to perform when properly used in accordance

with instructions for use provided in the labeling, can

be reasonably expected to result in a significant injury

to the user.

2. A critical component in any component of a life support

device or system whose failure to perform can be rea-

sonably expected to cause the failure of the life support

device or system, or to affect its safety or effectiveness.

National Semiconductor

Corporation

Americas

Tel: 1-800-272-9959

Fax: 1-800-737-7018

Email: support@nsc.com

National Semiconductor

Europe

National Semiconductor

Asia Pacific Customer

Response Group

Tel: 65-2544466

Fax: 65-2504466

National Semiconductor

Japan Ltd.

Tel: 81-3-5620-6175

Fax: 81-3-5620-6179

Fax: +49 (0) 1 80-530 85 86

Email: europe.support@nsc.com

Deutsch Tel: +49 (0) 1 80-530 85 85

English Tel: +49 (0) 1 80-532 78 32

Français Tel: +49 (0) 1 80-532 93 58

Italiano Tel: +49 (0) 1 80-534 16 80

Email: sea.support@nsc.com

www.national.com

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.

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