MC74LCX540DW [MOTOROLA]

LOW-VOLTAGE CMOS OCTAL BUFFER; 低电压CMOS八路缓冲器


型号：	MC74LCX540DW
厂家：	MOTOROLA
描述：	LOW-VOLTAGE CMOS OCTAL BUFFER 低电压CMOS八路缓冲器
文件：	总8页 (文件大小：159K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

SEMICONDUCTOR TECHNICAL DATA

The MC74LCX540 is a high performance, inverting octal buffer

operating from a 2.7 to 3.6V supply. This device is similar in function to the

MC74LCX240, while providing flow through architecture. High

impedance TTL compatible inputs significantly reduce current loading to

input drivers while TTL compatible outputs offer improved switching noise

LOW–VOLTAGE CMOS

OCTAL BUFFER

performance. A V specification of 5.5V allows MC74LCX540 inputs to be

safely driven from 5V devices. The MC74LCX540 is suitable for memory

address driving and all TTL level bus oriented transceiver applications.

Current drive capability is 24mA at the outputs. The Output Enable

(OE1, OE2) inputs, when HIGH, disables the outputs by placing them in a

HIGH Z condition.

DW SUFFIX

PLASTIC SOIC

CASE 751D–04

• Designed for 2.7 to 3.6V V

Operation

• 5V Tolerant — Interface Capability With 5V TTL Logic

• Supports Live Insertion and Withdrawal

M SUFFIX

• I

OFF

• LVTTL Compatible

Specification Guarantees High Impedance When V

= 0V

PLASTIC SOIC EIAJ

CASE 967–01

• LVCMOS Compatible

• 24mA Balanced Output Sink and Source Capability

• Near Zero Static Supply Current in All Three Logic States (10µA)

Substantially Reduces System Power Requirements

SD SUFFIX

PLASTIC SSOP

CASE 940C–03

• Latchup Performance Exceeds 500mA

• ESD Performance: Human Body Model >2000V; Machine Model >200V

DT SUFFIX

PLASTIC TSSOP

CASE 948E–02

Pinout: 20–Lead (Top View)

OE2

PIN NAMES

Pins

Function

OEn

Output Enable Inputs

Data Inputs

3–State Outputs

OE1

GND

8/95

Motorola, Inc. 1996

REV 1

MC74LCX540

LOGIC DIAGRAM

OE1

OE2

INPUTS

OUTPUTS

OE1

OE2

H = High Voltage Level; L = Low Voltage Level; Z = High

Impedance State; X = High or Low Voltage Level and Transitions

Are Acceptable, for I

reasons, DO NOT FLOAT Inputs

MOTOROLA

LCX DATA

BR1339 — REV 3

MC74LCX540

ABSOLUTE MAXIMUM RATINGS*

Symbol

Parameter

Value

Condition

Unit

DC Supply Voltage

DC Input Voltage

DC Output Voltage

–0.5 to +7.0

–0.5 ≤ V ≤ +7.0

Output in 3–State

Note 1.

–0.5 ≤ V ≤ V

+ 0.5

DC Input Diode Current

DC Output Diode Current

–50

V < GND

°C

< GND

+50

V > V

O CC

DC Output Source/Sink Current

DC Supply Current Per Supply Pin

DC Ground Current Per Ground Pin

Storage Temperature Range

±50

±100

GND

–65 to +150

STG

* Absolutemaximumcontinuousratingsarethosevaluesbeyondwhichdamagetothedevicemayoccur. Exposuretotheseconditionsorconditions

beyond those indicated may adversely affect device reliability. Functional operation under absolute–maximum–rated conditions is not implied.

1. Output in HIGH or LOW State. I absolute maximum rating must be observed.

RECOMMENDED OPERATING CONDITIONS

Symbol

Parameter

Min

Typ

Max

Unit

Supply Voltage

Operating

Data Retention Only

2.0

1.5

3.3

3.6

Input Voltage

5.5

Output Voltage

(HIGH or LOW State)

(3–State)

5.5

–24

HIGH Level Output Current, V

= 3.0V – 3.6V

°C

LOW Level Output Current, V

= 3.0V – 3.6V

= 2.7V – 3.0V

HIGH Level Output Current, V

–12

LOW Level Output Current, V

Operating Free–Air Temperature

Input Transition Rise or Fall Rate, V from 0.8V to 2.0V,

–40

+85

∆t/∆V

ns/V

= 3.0V

DC ELECTRICAL CHARACTERISTICS

= –40°C to +85°C

Symbol

Characteristic

HIGH Level Input Voltage (Note 2.)

LOW Level Input Voltage (Note 2.)

HIGH Level Output Voltage

Condition

Min

2.0

Max

Unit

2.7V ≤ V

≤ 3.6V

2.7V ≤ V

≤ 3.6V

= –100µA

0.8

≤ 3.6V; I

– 0.2

= 2.7V; I

= 3.0V; I

= –12mA

= –18mA

= –24mA

2.2

2.4

2.2

LOW Level Output Voltage

2.7V ≤ V

≤ 3.6V; I

= 100µA

0.2

0.4

= 2.7V; I = 12mA

= 3.0V; I

= 16mA

= 24mA

0.4

0.55

2. These values of V are used to test DC electrical characteristics only.

LCX DATA

MOTOROLA

BR1339 — REV 3

MC74LCX540

DC ELECTRICAL CHARACTERISTICS (continued)

= –40°C to +85°C

Symbol

Characteristic

Input Leakage Current

Condition

≤ 3.6V; 0V ≤ V ≤ 5.5V

Min

Max

±5.0

Unit

µA

2.7V ≤ V

3–State Output Current

2.7 ≤ V

≤ 3.6V; 0V ≤ V ≤ 5.5V;

µA

V = V or V

Power–Off Leakage Current

Quiescent Supply Current

= 0V; V or V = 5.5V

µA

OFF

2.7 ≤ V

≤ 3.6V; V = GND or V

2.7 ≤ V

≤ 3.6V; 3.6 ≤ V or V ≤ 5.5V

±10

500

∆I

Increase in I

per Input

2.7 ≤ V

≤ 3.6V; V = V

– 0.6V

AC CHARACTERISTICS (t = t = 2.5ns; C = 50pF; R = 500Ω)

Limits

= –40°C to +85°C

= 3.0V to 3.6V

Max

= 2.7V

Symbol

Parameter

Waveform

Min

Max

Unit

Propagation Delay

Input to Output

1.5

6.5

7.5

PLH

PHL

Output Enable Time to

High and Low Level

1.5

8.5

9.5

PZH

PZL

Output Disable Time From

High and Low Level

1.5

7.5

8.5

PHZ

PLZ

Output–to–Output Skew

(Note 3.)

1.0

OSHL

OSLH

3. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device.

The specification applies to any outputs switching in the same direction, either HIGH–to–LOW (t

guaranteed by design.

) or LOW–to–HIGH (t

OSHL

); parameter

OSLH

DYNAMIC SWITCHING CHARACTERISTICS

= +25°C

Symbol

Characteristic

Condition

Min

Typ

0.8

Max

Unit

Dynamic LOW Peak Voltage (Note 4.)

Dynamic LOW Valley Voltage (Note 4.)

= 3.3V, C = 50pF, V = 3.3V, V = 0V

L IH IL

OLP

= 3.3V, C = 50pF, V = 3.3V, V = 0V

IH IL

OLV

4. Number of outputs defined as “n”. Measured with “n–1” outputs switching from HIGH–to–LOW or LOW–to–HIGH. The remaining output is

measured in the LOW state.

CAPACITIVE CHARACTERISTICS

Symbol

Parameter

Input Capacitance

Condition

= 3.3V, V = 0V or V

Typical

Unit

Output Capacitance

= 3.3V, V = 0V or V

OUT

Power Dissipation Capacitance

10MHz, V

= 3.3V, V = 0V or V

MOTOROLA

LCX DATA

BR1339 — REV 3

MC74LCX540

2.7V

1.5V

PLH

PHL

1.5V

WAVEFORM 1 – PROPAGATION DELAYS

= t = 2.5ns, 10% to 90%; f = 1MHz; t = 500ns

2.7V

1.5V

OEn

PHZ

PZH

– 0.3V

1.5V

≈

PLZ

PZL

≈

3.0V

GND

+ 0.3V

WAVEFORM 2 – OUTPUT ENABLE AND DISABLE TIMES

= t = 2.5ns, 10% to 90%; f = 1MHz; t = 500ns

Figure 1. AC Waveforms

OPEN

GND

PULSE

GENERATOR

DUT

TEST

SWITCH

Open

, t

PLH PHL

, t

PZL PLZ

Open Collector/Drain t

PLH

and t

PHL

, t

GND

PZH PHZ

= 50pF or equivalent (Includes jig and probe capacitance)

= R = 500Ω or equivalent

OUT

= Z

of pulse generator (typically 50Ω)

Figure 2. Test Circuit

LCX DATA

MOTOROLA

BR1339 — REV 3

MC74LCX540

OUTLINE DIMENSIONS

DW SUFFIX

PLASTIC SOIC PACKAGE

CASE 751D–04

ISSUE E

–A

–

NOTES:

1. DIMENSIONING AND TOLERANCING PER

ANSI Y14.5M, 1982.

2. CONTROLLING DIMENSION: MILLIMETER.

3. DIMENSIONS A AND B DO NOT INCLUDE

MOLD PROTRUSION.

4. MAXIMUM MOLD PROTRUSION 0.150

(0.006) PER SIDE.

–B

–

P 10 PL

0.010 (0.25)

5. DIMENSION D DOES NOT INCLUDE

DAMBAR PROTRUSION. ALLOWABLE

DAMBAR PROTRUSION SHALL BE 0.13

(0.005) TOTAL IN EXCESS OF D DIMENSION

AT MAXIMUM MATERIAL CONDITION.

D 20 PL

MILLIMETERS

INCHES

0.010 (0.25)

DIM

MIN

12.65

7.40

2.35

0.35

0.50

MAX

12.95

7.60

2.65

0.49

0.90

MIN

MAX

0.510

0.299

0.104

0.019

0.035

0.499

0.292

0.093

0.014

0.020

R X 45°

1.27 BSC

0.050 BSC

0.25

0.10

0.32

0.25

0.010

0.004

0.012

0.009

7°

0.415

0.029

10.05

0.25

10.55

0.75

0.395

0.010

–T

–

SEATING

PLANE

G 18 PL

M SUFFIX

PLASTIC SOIC EIAJ PACKAGE

CASE 967–01

ISSUE O

NOTES:

DIMENSIONING AND TOLERANCING PER ANSI

Y14.5M, 1982.

CONTROLLING DIMENSION: MILLIMETER.

DIMENSIONS D AND E DO NOT INCLUDE MOLD

FLASH OR PROTRUSIONS AND ARE MEASURED

AT THE PARTING LINE. MOLD FLASH OR

PROTRUSIONS SHALL NOT EXCEED 0.15 (0.006)

PER SIDE.

TERMINAL NUMBERS ARE SHOWN FOR

REFERENCE ONLY.

E H

THE LEAD WIDTH DIMENSION (b) DOES NOT

INCLUDE DAMBAR PROTRUSION. ALLOWABLE

DAMBAR PROTRUSION SHALL BE 0.08 (0.003)

TOTAL IN EXCESS OF THE LEAD WIDTH

DIMENSION AT MAXIMUM MATERIAL CONDITION.

DAMBAR CANNOT BE LOCATED ON THE LOWER

RADIUS OR THE FOOT. MINIMUM SPACE

BETWEEN PROTRUSIONS AND ADJACENT LEAD

TO BE 0.46 ( 0.018).

DETAIL P

VIEW P

MILLIMETERS

INCHES

DIM

MIN

---

MAX

2.05

0.20

0.50

0.27

12.80

5.45

MIN

---

MAX

0.081

0.008

0.020

0.011

0.504

0.215

0.05

0.35

0.18

12.35

5.10

0.002

0.014

0.007

0.486

0.201

1.27 BSC

0.050 BSC

0.10 (0.004)

0.13 (0.005)

7.40

0.50

1.10

8.20

0.85

1.50

0.291

0.020

0.043

0.323

0.033

0.059

0.70

---

0.90

0.81

0.028

---

0.035

0.032

MOTOROLA

LCX DATA

BR1339 — REV 3

MC74LCX540

OUTLINE DIMENSIONS

SD SUFFIX

PLASTIC SSOP PACKAGE

CASE 940C–03

NOTES:

13 DIMENSIONING AND TOLERANCING PER ANSI

Y14.5M, 1982.

14 CONTROLLING DIMENSION: MILLIMETER.

15 DIMENSION A DOES NOT INCLUDE MOLD FLASH,

PROTRUSIONS OR GATE BURRS. MOLD FLASH

OR GATE BURRS SHALL NOT EXCEED 0.15

(0.006) PER SIDE.

16 DIMENSION B DOES NOT INCLUDE INTERLEAD

FLASH OR PROTRUSION. INTERLEAD FLASH OR

PROTRUSION SHALL NOT EXCEED 0.15 (0.006)

PER SIDE.

ISSUE B

20X K REF

0.12 (0.005)

0.25 (0.010)

L/2

17 DIMENSION K DOES NOT INCLUDE DAMBAR

PROTRUSION/INTRUSION. ALLOWABLE DAMBAR

PROTRUSION SHALL BE 0.13 (0.005) TOTAL IN

EXCESS OF K DIMENSION AT MAXIMUM

MATERIAL CONDITION. DAMBAR INTRUSION

SHALL NOT REDUCE DIMENSION K BY MORE

THAN 0.07 (0.002) AT LEAST MATERIAL

CONDITION.

18 TERMINAL NUMBERS ARE SHOWN FOR

REFERENCE ONLY.

19 DIMENSION A AND B ARE TO BE DETERMINED

AT DATUM PLANE –W–.

PIN 1

IDENT

DETAIL E

–U–

–V–

MILLIMETERS

INCHES

DIM

MIN

7.07

5.20

1.73

0.05

0.63

MAX

7.33

5.38

1.99

0.21

0.95

MIN

MAX

0.288

0.212

0.078

0.008

0.037

0.278

0.205

0.068

0.002

0.024

0.20 (0.008)

T U

SECTION N–N

0.65 BSC

0.026 BSC

0.59

0.09

0.25

7.65

0.75

0.20

0.16

0.38

0.33

7.90

0.023

0.003

0.010

0.301

0.030

0.008

0.006

0.015

0.013

0.311

–W–

0.076 (0.003)

SEATING

PLANE

–T–

DETAIL E

DT SUFFIX

PLASTIC TSSOP PACKAGE

CASE 948E–02

ISSUE A

20X K REF

0.10 (0.004)

NOTES:

DIMENSIONING AND TOLERANCING PER ANSI

Y14.5M, 1982.

0.15 (0.006)

T U

CONTROLLING DIMENSION: MILLIMETER.

DIMENSION A DOES NOT INCLUDE MOLD FLASH,

PROTRUSIONS OR GATE BURRS. MOLD FLASH

OR GATE BURRS SHALL NOT EXCEED 0.15

(0.006) PER SIDE.

^2XL/2

DIMENSION B DOES NOT INCLUDE INTERLEAD

FLASH OR PROTRUSION. INTERLEAD FLASH OR

PROTRUSION SHALL NOT EXCEED 0.25 (0.010)

PER SIDE.

J J1

–U–

PIN 1

IDENT

10 DIMENSION K DOES NOT INCLUDE DAMBAR

PROTRUSION. ALLOWABLE DAMBAR

PROTRUSION SHALL BE 0.08 (0.003) TOTAL IN

EXCESS OF THE K DIMENSION AT MAXIMUM

MATERIAL CONDITION.

11 TERMINAL NUMBERS ARE SHOWN FOR

REFERENCE ONLY.

SECTION N–N

0.25 (0.010)

12 DIMENSION A AND B ARE TO BE DETERMINED

AT DATUM PLANE –W–.

0.15 (0.006)

T U

MILLIMETERS

INCHES

DIM

MIN

6.40

4.30

–––

0.05

0.50

MAX

6.60

4.50

1.20

0.15

0.75

MIN

MAX

0.260

0.177

0.047

0.006

0.030

–V–

0.252

0.169

–––

0.002

0.020

0.65 BSC

0.026 BSC

DETAIL E

0.27

0.09

0.19

0.37

0.20

0.16

0.30

0.25

0.011

0.004

0.007

0.015

0.008

0.006

0.012

0.010

–W–

6.40 BSC

0.252 BSC

DETAIL E

0.100 (0.004)

–T– ^SEATING

PLANE

LCX DATA

BR1339 — REV 3

MOTOROLA

MC74LCX540

Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding

the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and

specificallydisclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola

datasheetsand/orspecificationscananddovaryindifferentapplicationsandactualperformancemayvaryovertime. Alloperatingparameters,including“Typicals”

must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of

others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other

applicationsintended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury

ordeathmayoccur. ShouldBuyerpurchaseoruseMotorolaproductsforanysuchunintendedorunauthorizedapplication,BuyershallindemnifyandholdMotorola

and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees

arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that

Motorola was negligent regarding the design or manufacture of the part. Motorola and

Opportunity/Affirmative Action Employer.

are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal

How to reach us:

USA/EUROPE/Locations Not Listed: Motorola Literature Distribution;

P.O. Box 5405; Denver, Colorado 80217. 1–800–441–2447

JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, 6F Seibu–Butsuryu–Center,

3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 81–3–3521–8315

MFAX: RMFAX0@email.sps.mot.com – TOUCHTONE 602–244–6609

INTERNET: http://Design–NET.com

ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park,

51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298

MC74LCX540/D

LCX DATA

◊

MOTOROLA

BR1339 — REV 3

MC74LCX540DW [MOTOROLA]

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