Datasheet MC74LCX543DW, MC74LCX543SD, MC74LCX543DT Datasheet (Motorola)

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SEMICONDUCTOR TECHNICAL DATA

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$$  &"$

The MC74LCX543 is a high performance, non–inverting octal latching
transceiver operating from a 2.7 to 3.6V supply. High impedance TTL
compatible inputs significantly reduce current loading to input drivers
while TTL compatible outputs offer improved switching noise
performance. A VI specification of 5.5V allows MC74LCX543 inputs to be
safely driven from 5V devices. The MC74LCX543 is suitable for memory
address driving and all TTL level bus oriented transceiver applications.

For data flow from A to B with the EAB
Enable (OEAB
indicated in the Function Table. With EAB
A–to–B Latch Enable (LEAB
transparent; a subsequent LOW–to–HIGH transition of the LEAB
will latch the A latches, and the outputs no longer change with the A
inputs. With EAB
active and reflect the data present at the output of the A latches. Control
of data flow from B to A is symetric to that above, but uses the EBA
LEBA

, and OEBA inputs.

• Designed for 2.7 to 3.6V V

) must be LOW in order to enable data to the B bus, as

) input makes the A–to–B latches

and OEAB both LOW, the 3–State B output buf fers are

Operation

CC

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

• Supports Live Insertion and Withdrawal

• I

Specification Guarantees High Impedance When VCC = 0V

OFF

• LVTTL Compatible

• 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

• Latchup Performance Exceeds 500mA

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

LOW, the A–to–B Output

LOW, a LOW signal on the

signal

,



LOW–VOLTAGE CMOS

OCTAL LATCHING

TRANSCEIVER

DW SUFFIX

24

1

24

1

24

1

PLASTIC SOIC
CASE 751E–04

SD SUFFIX

PLASTIC SSOP

CASE 940D–03

DT SUFFIX

PLASTIC TSSOP

CASE 948H–01

Pinout: 24–Lead Package (Top View)

V

EBA

CC

LEBA

This document contains information on a new product. Specifications and information herein are subject to
change without notice.

11/96

 Motorola, Inc. 1996

B0 B1 B2 B3 B4 B5 B6 B7

2324 22 21 20 19 18

21 34567

OEBA A0 A1 A2 A3 A4 A5 A6 A7

17

1

16

9

8

15

10

LEAB

OEAB

14

13

11

12

EAB GND

PIN NAMES

Pins

OExx
Exx
LExx
A0–A7
B0–B7

REV 0.3

Function

Output Enable Inputs
Enable Inputs
Latch Enable Inputs
3–State Inputs/Outputs
3–State Inputs/Outputs

MC74LCX543

Operating Mode

LOGIC DIAGRAM

D

Q

LE

3

A0

Q

DETAIL A x 7

OEBA

LEBA

2 13

EBA

23

1

FUNCTION TABLE

Inputs

OEAB OEBA EAB EBA LEAB LEBA An Bn

H H Input Input

X X X X X X Disable Outputs
L L L L X X Transparent Data; Outputs Disabled

H H l

L H Input Output

H X* L X l

H X X Z Hold; B Outputs Disabled

L X* L X L

H X l

H L Output Input

X* H X L Z

X H Z X Hold; A Outputs DIsabled

X* L X L L

X H L

Data

Ports

h

h

H

h

Z

H

H

DETAIL A

D

LE

l

h

Z
Z

L

H

L

H

l

h

L

H

l

h

22

B0

OEAB
EAB

11

LEAB

14

Operating Mode

Latch and Outputs Disabled

Load and B Outputs Disabled

Transparent A to B

Latch and Display B Outputs

Load and A Outputs Disabled

Transparent B to A

Latch and Display A Outputs

H = High Voltage Level; h = High Voltage Level One Setup T ime Prior to the Latch Enable or Enable Low–to–High Transition; L = Low Voltage Level;
l = Low Voltage Level One Setup Time Prior to the Latch Enable or Enable Low–to–High T ransition; X = Don’t Care; * = The latches are not internally
gated with the Output Enables. Therefore, data at the A or B ports may enter the latches at any time, provided that the LExx

and Exx pins are set

accordingly. For ICC reasons, Do Not Float Inputs.

MOTOROLA LCX DATA

2

BR1339 — REV 3

MC74LCX543

ABSOLUTE MAXIMUM RATINGS*

Symbol Parameter Value Condition Unit

V

CC

V

I

V

O

I

IK

I

OK

I

O

I

CC

I

GND

T

STG

* Absolute maximum continuous ratings are those values beyond which damage to the device may occur. Exposure to these conditions or conditions

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. IO absolute maximum rating must be observed.

RECOMMENDED OPERATING CONDITIONS

Symbol Parameter Min Typ Max Unit

V

CC

V

I

V

O

I

OH

I

OL

I

OH

I

OL

T

A

∆t/∆V Input Transition Rise or Fall Rate, VIN from 0.8V to 2.0V ,

DC Supply Voltage –0.5 to +7.0 V
DC Input Voltage –0.5 ≤ VI ≤ +7.0 V
DC Output Voltage –0.5 ≤ VO ≤ +7.0 Output in 3–State V

–0.5 ≤ VO ≤ VCC + 0.5 Note 1. V
DC Input Diode Current –50 VI < GND mA
DC Output Diode Current –50 VO < GND mA

+50 VO > V
DC Output Source/Sink Current ±50 mA
DC Supply Current Per Supply Pin ±100 mA
DC Ground Current Per Ground Pin ±100 mA
Storage Temperature Range –65 to +150 °C

Supply Voltage Operating

Data Retention Only
Input Voltage 0 5.5 V
Output Voltage (HIGH or LOW State)

(3–State)
HIGH Level Output Current, VCC = 3.0V – 3.6V –24 mA
LOW Level Output Current, VCC = 3.0V – 3.6V 24 mA
HIGH Level Output Current, VCC = 2.7V – 3.0V –12 mA
LOW Level Output Current, VCC = 2.7V – 3.0V 12 mA
Operating Free–Air Temperature –40 +85 °C

VCC = 3.0V

2.0

1.5

0
0

0 10 ns/V

3.3

3.3

CC

V

3.6

3.6

CC

5.5

mA

V

V

DC ELECTRICAL CHARACTERISTICS

TA = –40°C to +85°C

Symbol Characteristic Condition Min Max Unit

V

IH

V

IL

V

OH

V

OL

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

LCX DATA
BR1339 — REV 3

HIGH Level Input Voltage (Note 2.) 2.7V ≤ VCC ≤ 3.6V 2.0 V
LOW Level Input Voltage (Note 2.) 2.7V ≤ VCC ≤ 3.6V 0.8 V
HIGH Level Output Voltage 2.7V ≤ VCC ≤ 3.6V; IOH = –100µA VCC– 0.2 V

VCC = 2.7V; IOH = –12mA 2.2
VCC = 3.0V; IOH = –18mA 2.4
VCC = 3.0V; IOH = –24mA 2.2

LOW Level Output Voltage 2.7V ≤ VCC ≤ 3.6V; IOL = 100µA 0.2 V

VCC = 2.7V; IOL= 12mA 0.4
VCC = 3.0V; IOL = 16mA 0.4
VCC = 3.0V; IOL = 24mA 0.55

3 MOTOROLA

MC74LCX543

DC ELECTRICAL CHARACTERISTICS (continued)

TA = –40°C to +85°C

Symbol Characteristic Condition Min Max Unit

I

I

I

OZ

I

OFF

I

CC

∆I

CC

AC CHARACTERISTICS (Note 3.; tR = tF = 2.5ns; CL = 50pF; RL = 500Ω)

Symbol Parameter Waveform Min Max Min Max Unit

t

PLH

t

PHL

t

PLH

t

PHL

t

PZH

t

PZL

t

PHZ

t

PLZ

t

PZH

t

PZL

t

PHZ

t

PLZ

t

s

t

h

t

s

t

h

t

w

t

OSHL

t

OSLH

3. These AC parameters are preliminary and may be modified prior to release. The maximum AC limits are design targets. Actual performance
will be specified upon completion of characterization.

4. 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.

Input Leakage Current 2.7V ≤ VCC ≤ 3.6V; 0V ≤ VI ≤ 5.5V ±5.0 µA
3–State Output Current 2.7 ≤ VCC ≤ 3.6V; 0V ≤ VO ≤ 5.5V;

Power–Off Leakage Current VCC = 0V; VI or VO = 5.5V 10 µA
Quiescent Supply Current

Increase in ICC per Input 2.7 ≤ VCC ≤ 3.6V; VIH = VCC – 0.6V 500 µA

Propagation Delay
An to Bn or Bn to An

Propagation Delay

to An or LEAB to Bn

LEBA
Output Enable Time

OEBA to An or OEAB to Bn
Output Disable Time

to An or OEAB to Bn

OEBA
Output Enable Time

to An or EAB to Bn

EBA
Output Disable Time

EBA to An or EAB to Bn
Setup Time, HIGH to LOW Data to LExx 4 2.5 2.5 ns
Hold Time, HIGH to LOW Data to LExx 4 1.5 1.5 ns
Setup Time, HIGH to LOW Data to Exx 4 2.5 2.5 ns
Hold Time, HIGH to LOW Data to Exx 4 1.5 1.5 ns
Latch Enable or Enable Pulse Width, LOW 4 3.3 3.3 ns
Output–to–Output Skew

(Note 4.)

2.7 ≤ VCC ≤ 3.6V; VI = GND or V

2.7 ≤ VCC ≤ 3.6V; 3.6 ≤ VI or VO ≤ 5.5V ± 10 µA

VI = VIH or V

VCC = 3.0V to 3.6V VCC = 2.7V

1 1.5

1.5

4 1.5

1.5

2 1.5

1.5

2 1.5

1.5

2 1.5

1.5

2 1.5

1.5

IL

CC

Limits

TA = –40°C to +85°C

7.0

7.0

8.5

8.5

9.0

9.0

7.0

7.0

9.0

9.0

7.0

7.0

1.0

1.0

) or LOW–to–HIGH (t

OSHL

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

±5.0 µA

10 µA

8.0

8.0

9.5

9.5

10.0

10.0

7.5

7.5

10.0

10.0

7.5

7.5

); parameter

OSLH

ns

ns

ns

ns

ns

ns

ns

DYNAMIC SWITCHING CHARACTERISTICS

TA = +25°C

Symbol Characteristic Condition Min Typ Max Unit

V

OLP

V

OLV

5. 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.

MOTOROLA LCX DATA

Dynamic LOW Peak Voltage (Note 5.) VCC = 3.3V, CL = 50pF, VIH = 3.3V, VIL = 0V 0.8 V
Dynamic LOW Valley Voltage (Note 5.) VCC = 3.3V, CL = 50pF, VIH = 3.3V, VIL = 0V 0.8 V

4

BR1339 — REV 3

MC74LCX543

CAPACITIVE CHARACTERISTICS

Symbol Parameter Condition Typical Unit

C

IN

C

I/O

C

PD

Input Capacitance VCC = 3.3V, VI = 0V or V
Input/Output Capacitance VCC = 3.3V, VI = 0V or V
Power Dissipation Capacitance 10MHz, VCC = 3.3V, VI = 0V or V

An

or Bn

Bn

or An

1.5V

t

PLH

, t

1.5V

PHL

CC
CC

CC

2.7V

0V

V

OH

V

OL

7 pF
8 pF

25 pF

WAVEFORM 1 – A/B to B/A PROPAGATION DELAYS

tR = tF = 2.5ns, 10% to 90%; f = 1MHz; tW = 500ns

2.7V

OExx

or Exx

t

PZH

An

or Bn

t

PZL

An

or Bn

WAVEFORM 2 – OExx/Exx to A or B OUTPUT ENABLE AND DISABLE TIMES

tR = tF = 2.5ns, 10% to 90%; f = 1MHz; tW = 500ns

1.5V

1.5V

t

PHZ

t

PLZ

1.5V1.5V
0V

VOH – 0.3V

≈

VOL + 0.3V

Figure 1. AC Waveforms

≈

0V

3.0V

LCX DATA
BR1339 — REV 3

5 MOTOROLA

MC74LCX543

NEGATIVE
PULSE

POSITIVE
PULSE

1.5V

1.5V

WAVEFORM 3 – INPUT PULSE DEFINITION

tR = tF = 2.5ns, 10% to 90% of 0V to 2.7V

PULSE

GENERAT OR

2.7V

An

or Bn

t

w

t

w

1.5V

1.5V

1.5V

Exx

or LExx

An

or Bn

WAVEFORM 4 – Enable to A or B PROPAGATION DELAYS, Enable MINIMUM

PULSE WIDTH, A or B to Enable SETUP AND HOLD TIMES

tR = tF = 2.5ns, 10% to 90%; f = 1MHz; tW = 500ns except when noted

t

PLH

1.5V

t

s

t

w

, t

PHL

1.5V

t

h

1.5V
0V

2.7V

0V

V

OH

V

OL

Figure 2. AC Waveforms (continued)

V

CC

6V

R

DUT

R

T

C

L

1

R

L

OPEN
GND

TEST SWITCH

t

, t

PLH

PHL

t

, t

PZL

PLZ

Open Collector/Drain t
t

, t

PZH

PHZ

CL = 50pF or equivalent (Includes jig and probe capacitance)
RL = R1 = 500Ω or equivalent
RT = Z

of pulse generator (typically 50Ω)

OUT

PLH

and t

PHL

Open

GND

Figure 3. T est Circuit

6V
6V

MOTOROLA LCX DATA

6

BR1339 — REV 3

OUTLINE DIMENSIONS

PLASTIC SOIC PACKAGE

–A

–

24 13

–B

P 12 PL

–

112

D 24 PL

0.010 (0.25) A B

M

S S

T

C

–T

–

SEATING
PLANE

G 22 PL

K

0.010 (0.25)

DW SUFFIX

CASE 751E–04

ISSUE E

M M

J

F

M

B

R X 45°

MC74LCX543

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 0.15
(0.006) PER SIDE.

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.

MILLIMETERS INCHES

MIN MINMAX MAX

DIM

A
B
C
D
F
G
J
K
M
P
R

15.54

7.60

2.65

0.49

0.90

0.32

0.29
8

10.55

0.75

0.601

0.292

0.093

0.014

0.016

0.009

0.005
0

°

°

0.395

0.010

15.25

7.40

2.35

0.35

0.41

1.27 BSC 0.050 BSC

0.23

0.13
0

°

10.05

0.25

0.612

0.299

0.104

0.019

0.035

0.013

0.011
8

0.415

0.029

°

0.076 (0.003)

SEATING

–T–

PLANE

L/2

L

PIN 1
IDENT

0.20 (0.008) T

C

D

K24X REF

0.12 (0.005) V

24 13

A

–V–

M

S

U

G

H

SD SUFFIX

PLASTIC SSOP PACKAGE

CASE 940D–03

ISSUE B

M

S

U

T

S

J

B

121

–U–

N

N

DETAIL E

K

K1

SECTION N–N

0.25 (0.010)

M

F

DETAIL E

J1

–W–

NOTES:

4 DIMENSIONING AND TOLERANCING PER ANSI

Y14.5M, 1982.
5 CONTROLLING DIMENSION: MILLIMETER.
6 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.
7 DIMENSION B DOES NOT INCLUDE INTERLEAD

FLASH OR PROTRUSION. INTERLEAD FLASH OR

PROTRUSION SHALL NOT EXCEED 0.15 (0.006)

PER SIDE.
8 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.
9 TERMINAL NUMBERS ARE SHOWN FOR

REFERENCE ONLY.

10 DIMENSION A AND B ARE TO BE DETERMINED

AT DATUM PLANE –W–.

MILLIMETERS

DIMAMIN MAX MIN MAX

8.07 8.33 0.317 0.328

B 5.20 5.38 0.205 0.212
C 1.73 1.99 0.068 0.078
D 0.05 0.21 0.002 0.008

F 0.63 0.95 0.024 0.037
G 0.65 BSC 0.026 BSC
H 0.44 0.60 0.017 0.024

J 0.09 0.20 0.003 0.008

J1 0.09 0.16 0.003 0.006

K 0.25 0.38 0.010 0.015

K1 0.25 0.33 0.010 0.013

L 7.65 7.90 0.301 0.311
M 0 8 0 8

____

INCHES

LCX DATA
BR1339 — REV 3

7 MOTOROLA

MC74LCX543

OUTLINE DIMENSIONS

S

U0.15 (0.006) T

S

U0.15 (0.006) T

0.10 (0.004)

SEATING

–T–

PLANE

PLASTIC TSSOP PACKAGE

DT SUFFIX

CASE 948H–01

ISSUE O

24X REFK

M

2X L/2

0.10 (0.004) V

24

L

PIN 1
IDENT.

1

A

–V–

C

D

G

S

U

T

S

NOTES:

1 DIMENSIONING AND TOLERANCING PER ANSI

13

B

–U–

12

H

–W–

Y14.5M, 1982.
2 CONTROLLING DIMENSION: MILLIMETER.
3 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.
4 DIMENSION B DOES NOT INCLUDE INTERLEAD

FLASH OR PROTRUSION. INTERLEAD FLASH OR

PROTRUSION SHALL NOT EXCEED

0.25 (0.010) PER SIDE.

5 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.
6 TERMINAL NUMBERS ARE SHOWN FOR

REFERENCE ONLY.
7 DIMENSION A AND B ARE TO BE DETERMINED

AT DATUM PLANE –W–.

DIM MIN MAX MIN MAX

A 7.70 7.90 0.303 0.311
B 4.30 4.50 0.169 0.177
C ––– 1.20 ––– 0.047
D 0.05 0.15 0.002 0.006
F 0.50 0.75 0.020 0.030
G 0.65 BSC 0.026 BSC
H 0.27 0.37 0.011 0.015
J 0.09 0.20 0.004 0.008

J1 0.09 0.16 0.004 0.006

K 0.19 0.30 0.007 0.012

K1 0.19 0.25 0.007 0.010

L 6.40 BSC 0.252 BSC
M 0 8 0 8

____

INCHESMILLIMETERS

DETAIL E

K

N

K1

J1

SECTION N–N

J

N

F

DETAIL E

0.25 (0.010)

M

MOTOROLA LCX DATA

8

BR1339 — REV 3

MC74LCX543

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
specifically disclaims any and all liability, including without limitation consequential or incidental damages. “T ypical” parameters which may be provided in Motorola
data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, 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
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applications intended 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
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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
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Opportunity/Affirmative Action Employer.

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MC74LCX543/D

LCX DATA

◊

9 MOTOROLA

BR1339 — REV 3