Datasheet MC74LCX16501DT Datasheet (Motorola)

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SEMICONDUCTOR TECHNICAL DATA

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The MC74LCX16501 is a high performance, non–inverting 18–bit
universal bus transceiver operating from a 2.7 to 3.6V supply. This part is
not byte controlled; it is “18–bit” controlled. 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 MC74LCX16501 inputs to
be safely driven from 5V devices. The MC74LCX16501 is suitable for
memory address driving and all TTL level bus oriented transceiver
applications.

Data flow in each direction is controlled by Output Enable (OEAB,
OEBA

), Latch Enable (LEAB, LEBA) and Clock inputs (CAB, CBA). When
LEAB is HIGH, the A–to–B dataflow is transparent. When LEAB is LOW,
and CAB is held at LOW or HIGH, the data A is latched; on the
LOW–to–HIGH transition of CAB the A–data is stored in the
latch/flip–flop. The outputs are active when OEAB is HIGH. When OEAB
is LOW the B–outputs are in 3–state. Similarly , the LEBA, OEBA
control the B–to–A dataflow. Please note that the output enables are
complementary; OEAB is active HIGH, OEBA

• Designed for 2.7 to 3.6V V

• 6ns t

Maximum

pd

Operation

CC

is active LOW.

• 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 (20µA)

Substantially Reduces System Power Requirements

• Latchup Performance Exceeds 500mA

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

Model >200V

and CBA



LOW–VOLTAGE CMOS

18–BIT UNIVERSAL BUS

TRANSCEIVER

56–LEAD PLASTIC TSSOP PACKAGE

PIN NAMES

Pins

OEAB, OEBA
CAB, CBA
LEAB, LEBA
A0–A17
B0–B17

DT SUFFIX

CASE 1202–01

Function

Output Enable Inputs
Clock Pulse Inputs
Latch Enable Inputs
Side A Inputs/Outputs
Side B Inputs/Outputs

3/97

 Motorola, Inc. 1997

1

REV 1

MC74LCX16501

V

CC

A11

V

CC

A16

GNDOEAB

561

CABLEAB

552

B0A0

543

GNDGND

534

B1A1

525

B2A2

516

V

507

CC

B3A3

498

B4A4

489

B5A5

4710

GNDGND

4611

B6A6

4512

B7A7

4413

B8A8

4314

B9A9

4215

B10A10

4116

B11

4017

GNDGND

3918

B12A12

3819

B13A13

3720

B14A14

3621

V

3522

CC

B15A15

3423

B16

3324

GNDGND

3225

B17A17

3126

CBAOEBA

3027

GNDLEBA

2928

OEAB

CBA

LEBA

OEBA

CAB

LEAB

A0

1

30

28

27

55

2

C1

3

1D

C1

1D

C1

1D

C1

1D

54

B0

To 17 Other Channels

Figure 1. 56-Lead Pinout

Figure 2. Logic Diagram

(Top View)

MOTOROLA LCX DATA

2

BR1339 — REV 3

MC74LCX16501

Operating Mode

FUNCTION TABLE

l

h

l

h
L

H

L

H

L

H

Data

Ports

Operating Mode

l

Clock A and/or B Data; A and B Outputs Disabled

h

L

Clock A Data to B Bus; Store A Data

H

L

A Data to B Bus; (Transparent)

H

l

Clock B Data to A Bus; Store B Data

h
L

B Data to A Bus; (Transparent)

H

Inputs

OEAB OEBA LEAB LEBA CAB CBA An Bn

L H Input Input

H or L H or L X X Hold Data; A and B Outputs Disabled

L L

H H Input Output

L X

H X X X*

L L Output Input

X L

X H X* X

H L Output Output

L L H or L H or L QB QA Stored A Data to B Bus; Stored B Data to A Bus

H = High Voltage Level; L = Low Voltage Level; h = High Voltage Level One Setup Time Prior to the Latch Enable or Clock Low–to–High Transition; l = Low Voltage
Level One Setup Time Prior to the Latch Enable or Clock Low–to–High Transition; X = Don’t Care; ↑ = Low–to–High Clock T ransition; QA = A input storage register;
QB = B input storage register; * = The clocks are not internally gated with either the Output Enables or the Source Inputs. Therefore, data at the A or B ports may be
clocked into the storage registers, at any time. For ICC reasons, Do Not Float Inputs.

↑ ↑

H or L X* X QA Hold and Display B Data

↑ X*

X* H or L QB X Hold and Display A Data
X* ↑

LCX DATA
BR1339 — REV 3

3 MOTOROLA

MC74LCX16501

Real Time Transfer – Bus B to

Bus A

BUS A

OEABLOEBA

CABXCBAXLEABXLEBA

L

Store Data from Bus A, Bus B or

Bus A and Bus B

BUS A

BUS B

H

BUS B

Real Time Transfer – Bus A to

Bus B

BUS A

OEABHOEBA

CABXCBAXLEABHLEBA

H

Transfer A Stored Data to Bus B

or B Stored Data to Bus A or

Both at the Same Time

BUS A

BUS B

X

BUS B

CAB

OEAB

X
L
L

OEBA

H
X
H

CBA

LEAB

↑

X

L
X
X

X

↑

L

X

Store Bus A in Both Registers or

Store Bus B in Both Registers

BUS A

CAB

CBA

OEAB

H
L

OEBA

H
L

X
X

LEAB

X

L

X

L

LEBA

X
L
L

BUS B

LEBA

L
L

Figure 3. Bus Applications

OEAB

OEBA

H

H

L

L

H

L

BUS A

OEABLOEBA

H

CAB

↑

X

H or L

Isolation

CAB

H or L

CBA

X

↑

H or L

CBA

H or L

LEBA

LEAB

L

X

X

L

L

L

BUS B

LEABLLEBA

L

MOTOROLA LCX DATA

4

BR1339 — REV 3

MC74LCX16501

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

5 MOTOROLA

MC74LCX16501

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

f

max

t

PHL

t

PLH

t

PHL

t

PLH

t

PHL

t

PLH

t

PZH

t

PZL

t

PHZ

t

PLZ

t

s

t

h

t

w

t

OSHL

t

OSLH

3. These AC parameters are preliminary and may be modified prior to release.

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

Maximum Clock Frequency 3 170 MHz
Propagation Delay

Input to Output
Propagation Delay

Clock to Output
Propagation Delay

LExx to Output
Output Enable Time to

High and Low Level
Output Disable Time From

High and Low Level
Setup Time 3,4 2.5 2.5 ns
Hold Time 3,4 1.5 1.5 ns
Pulse Width Time 3,4 3.0 3.0 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 ± 20 µA

1 1.5

3 1.5

4 1.5

2 1.5

2 1.5

VI = VIH or V

VCC = 3.0V to 3.6V VCC = 2.7V

1.5

1.5

1.5

1.5

1.5

IL

CC

Limits

TA = –40°C to +85°C

6.0

6.0

6.7

6.7

7.0

7.0

7.2

7.2

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

±5.0 µA

20 µA

7.0

7.0

8.0

8.0

8.0

8.0

8.2

8.2

8.0

8.0

); parameter

OSLH

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

6

BR1339 — REV 3

MC74LCX16501

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, Bn

Bn, An

1.5V

t

, t

PLH

PHL

1.5V

WAVEFORM 1 – An to Bn PROPAGATION DELAYS

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

CC
CC

CC

2.7V

0V

V

OH

V

OL

7 pF
8 pF

20 pF

OEBA

1.5V1.5V

OEAB

t

PZH

An, Bn

t

PZL

An, Bn

WAVEFORM 2 – OEBA/OEAB to An/Bn OUTPUT ENABLE AND DISABLE TIMES

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

1.5V

1.5V

t

PHZ

t

PLZ

2.7V

0V

VOH – 0.3V

≈

0V

≈

3.0V

VOL + 0.3V

Figure 4. AC Waveforms

LCX DATA
BR1339 — REV 3

7 MOTOROLA

MC74LCX16501

An, Bn

CAB,

CBA

Bn, An

2.7V

1.5V
0V

t

s

1.5V

t

h

t

w

t

PLH

1.5V

, t

PHL

f

max

1.5V

2.7V

0V

V

OH

V

OL

WAVEFORM 3 – CLOCK to Bn/An PROPAGATION DELAYS, CLOCK MINIMUM PULSE WIDTH,

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

An, Bn

LEAB,

LEBA

Bn, An

WAVEFORM 4 – LExx to An, Bn PROPAGATION DELAYS, LExx MINIMUM

An/Bn to CLOCK SETUP AND HOLD TIMES

2.7V

1.5V
0V

1.5V

t

h

2.7V

0V

V

OH

V

OL

t

s

t

PLH

1.5V

t

w

, t

PHL

1.5V

PULSE WIDTH, An, Bn to LExx SETUP AND HOLD TIMES

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

t
NEGATIVE
PULSE

POSITIVE
PULSE

1.5V

1.5V

WAVEFORM 5 – INPUT PULSE DEFINITION

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

w

t

w

1.5V

1.5V

Figure 5. AC Waveforms (continued)

MOTOROLA LCX DATA

8

BR1339 — REV 3

PULSE

GENERATOR

V

CC

DUT

R

T

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

C

R

L

Open

6V
6V

GND

Figure 6. T est Circuit

MC74LCX16501

6V

R

1

L

OPEN
GND

LCX DATA
BR1339 — REV 3

9 MOTOROLA

MC74LCX16501

OUTLINE DIMENSIONS

DT SUFFIX

PLASTIC TSSOP PACKAGE

CASE 1202–01

ISSUE A

S

U

M

L

0.254 (0.010) T

0.076 (0.003)

–T–

SEATING
PLANE

–U–

PIN 1
IDENT.

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
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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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◊

MOTOROLA LCX DATA

10

Mfax is a trademark of Motorola, Inc.

MC74LCX16501/D

BR1339 — REV 3