Datasheet MC74LCX16543DT Datasheet (Motorola)



SEMICONDUCTOR TECHNICAL DATA

 

#*#!'   '
' " %"& )%

 ' #!%"' "$('& " ('$('&
'' #"")%' "

The MC74LCX16543 is a high performance, non–inverting 16–bit
latching transceiver operating from a 2.7 to 3.6V supply. The device is
byte controlled. Each byte has separate control inputs which can be tied
together for full 16–bit operation. 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 MC74LCX16543 inputs to be safely driven from 5V devices.
The MC74LCX16543 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

, and OEBA inputs.

LEBA

) 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

LOW, the A–to–B Output

LOW, a LOW signal on the

signal



LOW–VOLTAGE CMOS

16–BIT LATCHING

TRANSCEIVER

,

PLASTIC TSSOP PACKAGE

DT SUFFIX

CASE 1202–01

• Designed for 2.7 to 3.6V V

• 5.2ns Maximum t

pd

Operation

CC

• 5V T olerant — Interface Capability With 5V TTL Logic

• Supports Live Insertion and Withdrawal

• I

• LVTTL Compatible

Specification Guarantees High Impedance When VCC = 0V

OFF

PIN NAMES

• LVCMOS Compatible

• 24mA Balanced Output Sink and Source Capability

• Near Zero Static Supply Current in All Three Logic States (20µA)

Substantially Reduces System Power Requirements

• Latchup Performance Exceeds 500mA

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

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

Pins

OExxn
Exxn
LExxn
A0–A15
B0–B15

Function

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

11/96

 Motorola, Inc. 1996

1

REV 0.2

MC74LCX16543

A0

OEBA1

EBA1

LEBA1

A8

OEBA2

EBA2

LEBA2

LOGIC DIAGRAM

D

Q

LE

5

DETAIL A x 7

56 1

54

55

D

Q

LE

15

DETAIL Bx 7

29 28

31

30

DETAIL A

D

Q

LE

DETAIL B

D

Q

LE

Pinout: 56-Lead TSSOP

(Top View)

52

B0

OEAB1
EAB1

3

LEAB1

2

42

B8

OEAB2
EAB2

26

LEAB2

27

OEAB1

LEAB1

EAB1

A0

V

CC

A5

A11

V

CC

EAB2

LEAB2

OEAB2

561
552
543
534
525
516
507
498
489
4710
4611
4512
4413
4314
4215
4116
4017
3918
3819
3720
3621
3522
3423
3324
3225
3126
3027
2928

OEBA1
LEBA1
EBA1
GNDGND
B0
B1A1
V

CC

B2A2
B3A3
B4A4
GNDGND
B5
B6A6
B7A7
B8A8
B9A9
B10A10
GNDGND
B11
B12A12
B13A13
V

CC

B14A14
B15A15
GNDGND
EBA2
LEBA2
OEBA2

MOTOROLA LCX DATA

2

BR1339 — REV 3

MC74LCX16543

O

FUNCTION TABLE

Inputs

OEABn OEBAn EABn EBAn LEABn LEBAn 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

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
accordingly. For ICC reasons, Do Not Float Inputs.

Data Ports

h

h

H

h

Z

H

H

perating Mode

l

h

Z
Z

L

H

L

H

l

h

L

H

l

h

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

and Exx pins are set

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.

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

CC

mA

LCX DATA
BR1339 — REV 3

3 MOTOROLA

MC74LCX16543

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 ELECTRICAL CHARACTERISTICS

Symbol Characteristic Condition Min Max Unit

V

IH

V

IL

V

OH

V

OL

I

I

I

OZ

I

OFF

I

CC

∆I

CC

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

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

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

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

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

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

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

VI = VIH or V

2.7 ≤ VCC ≤ 3.6V; VI = GND or V

2.7 ≤ VCC ≤ 3.6V; 3.6 ≤ VI or VO ≤ 5.5V ±20 µA

2.0

1.5

0
0

0 10 ns/V

IL

CC

3.3

3.3

TA = –40°C to +85°C

3.6

3.6

V

CC

5.5

±5.0 µA

20 µA

V

V

MOTOROLA LCX DATA

4

BR1339 — REV 3

MC74LCX16543

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

Limits

TA = –40°C to +85°C

VCC = 3.0V to 3.6V VCC = 2.7V

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.

Propagation Delay
An to Bn or Bn to An

Propagation Delay
LEBAn to An or LEABn to Bn

Output Enable Time

to An or OEABn to Bn

OEBAn
Output Disable Time

to An or OEABn to Bn

OEBAn
Output Enable Time

EBAn to An or EABn to Bn
Output Disable Time

EBAn to An or EABn to Bn
Setup Time, HIGH to LOW Data to LExxn 4 2.5 2.5 ns
Hold Time, HIGH to LOW Data to LExxn 4 1.5 1.5 ns
Setup Time, HIGH to LOW Data to Exxn 4 2.5 2.5 ns
Hold Time, HIGH to LOW Data to Exxn 4 1.5 1.5 ns
Latch Enable or Enable Pulse Width, LOW 4 3.0 3.0 ns
Output–to–Output Skew

(Note 4.)

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

5.2

5.2

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

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

6.0

6.0

7.5

7.5

7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

OSLH

ns

ns

ns

ns

ns

ns

ns

); parameter

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.

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

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

CC
CC

CC

7 pF
8 pF

20 pF

LCX DATA
BR1339 — REV 3

5 MOTOROLA

MC74LCX16543

OExxn

or Exxn

An

or Bn

An

or Bn

Bn

or An

1.5V

t

, t

PLH

PHL

1.5V

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

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

1.5V1.5V

t

PZH

1.5V

t

PHZ

2.7V

0V

V

OH

V

OL

2.7V

0V

VOH – 0.3V

≈

0V

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

t

PLZ

≈

3.0V

VOL + 0.3V

Figure 1. AC Waveforms

MOTOROLA LCX DATA

6

BR1339 — REV 3

NEGATIVE
PULSE

POSITIVE
PULSE

t

1.5V

1.5V

WAVEFORM 3 – INPUT PULSE DEFINITION

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

w

t

w

1.5V

1.5V

Figure 2. AC Waveforms (continued)

PULSE

GENERAT OR

MC74LCX16543

2.7V

An

or Bn

t

s

Exxn

or LExxn

An

or Bn

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

V

CC

DUT

R

T

1.5V

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

C

L

t

w

t

, t

PLH

PHL

1.5V

6V

R

1

R

L

OPEN
GND

1.5V

t

h

1.5V
0V

2.7V

0V

V

OH

V

OL

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

LCX DATA
BR1339 — REV 3

7 MOTOROLA

MC74LCX16543

OUTLINE DIMENSIONS

S

U

M

L

0.254 (0.010) T

0.076 (0.003)

–T–

SEATING
PLANE

–U–

PIN 1
IDENT.

PLASTIC TSSOP PACKAGE

DT SUFFIX

CASE 1202–01

ISSUE A

K

56X REF

0.12 (0.005) V

M

S

U

T

S

J

2956

B

128

N

A

–V–

N

DETAIL E

D

C

K

K1

J1

SECTION N–N

F

0.25 (0.010)

NOTES:

1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.

2. CONTROLLING DIMENSION: MILLIMETER.

3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD FLASH, PROTRUSIONS OR GATE
BURRS. MOLD FLASH OR GATE BURRS
SHALL NOT EXCEED 0.15 (0.006) PER SIDE.

4. 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.

5. TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.

6. DIMENSIONS A AND B ARE TO BE
DETERMINED AT DATUM PLANE –W–.

DIM MIN MAX MIN MAX

A 13.90 14.10 0.547 0.555
B 6.00 6.20 0.236 0.244
C ––– 1.10 ––– 0.043

M

D 0.05 0.15 0.002 0.006
F 0.50 0.75 0.020 0.030
G 0.50 BSC 0.0197 BSC
H 0.12 ––– 0.005 –––
J 0.09 0.20 0.004 0.008

J1 0.09 0.16 0.004 0.006

K 0.17 0.27 0.007 0.011

K1 0.17 0.23 0.007 0.009

–W–

L 7.95 8.25 0.313 0.325
M 0 8 0 8

____

INCHESMILLIMETERS

DETAIL E

G

H

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
others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other
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
or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola
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 are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal
Opportunity/Affirmative Action Employer.

How to reach us:
USA/EUROPE /Locations Not Listed: Motorola Literature Distribution; JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, 6F Seibu–Butsuryu–Center,

P.O. Box 5405, Denver, Colorado 80217. 1–800–441–2447 3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–81–3521–8315

Mfax: [e-mail] – TOUCHT ONE 602–244–6609 ASIA/P ACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park,
INTERNET: http://Design–NET .com 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298

MOTOROLA LCX DATA

8

◊

MC74LCX16543/D

BR1339 — REV 3