Philips Semiconductors

Product specification

74LVT534

3.3V Octal D-type flip-flop, inverting (3-State)

1998 Feb 19

853-1855 18988

FEATURES

3-State outputs for bus interfacing

Common output enable

TTL input and output switching levels

Input and output interface capability to systems at 5V supply

Bus-hold data inputs eliminate the need for external pull-up
resistors to hold unused inputs

Live insertion/extraction permitted

No bus current loading when output is tied to 5V bus

Power-up 3-State

Power-up reset

Latch-up protection exceeds 500mA per JEDEC Std 17

ESD protection exceeds 2000V per MIL STD 883 Method 3015
and 200V per Machine Model

DESCRIPTION

The LVT534 is a high-performance BiCMOS product designed for
V

operation at 3.3V.

This device is an 8-bit, edge triggered register coupled to eight
3-State output buffers. The two sections of the device are controlled
independently by the clock (CP) and Output Enable (OE) control
gates. The state of each D input (one set-up time before the
Low-to-High clock transition) is transferred to the corresponding
flip-flop's Q output.

The 3-State output buffers are designed to drive heavily loaded
3-State buses, MOS memories, or MOS microprocessors. The
active-Low Output Enable (OE) controls all eight 3-State buffers
independent of the clock operation.

When OE is Low, the stored data appears at the outputs. When OE
is High, the outputs are in the High-impedance "off" state, which
means they will neither drive nor load the bus.

QUICK REFERENCE DATA

SYMBOL

PARAMETER

CONDITIONS

amb

= 25

C; GND = 0V

TYPICAL

UNIT

PLH

PHL

Propagation delay
CP to Qn

= 50pF;

= 3.3V

3.0
3.5

Input capacitance

= 0V or 3.0V

OUT

Output capacitance

Outputs disabled;
V

I/O

= 0V or 3.0V

CCZ

Total supply current

Outputs disabled;
V

= 3.6V

0.13

ORDERING INFORMATION

PACKAGES

TEMPERATURE RANGE

OUTSIDE NORTH AMERICA

NORTH AMERICA

DWG NUMBER

20-Pin Plastic SOL

C to +85

74LVT534 D

SOT163-1

20-Pin Plastic SSOP Type II

C to +85

74LVT534 DB

SOT339-1

20-Pin Plastic TSSOP Type I

C to +85

74LVT534 PW

74LVT534PW DH

SOT360-1

PIN CONFIGURATION

VCC

GND

SA00161

LOGIC SYMBOL

SA00162

Philips Semiconductors

Product specification

74LVT534

3.3V Octal D-type flip-flop, inverting (3-State)

1998 Feb 19

LOGIC SYMBOL (IEEE/IEC)

SA00163

PIN DESCRIPTION

PIN NUMBER

SYMBOL

FUNCTION

Output enable input (active-Low)

3, 4, 7, 8,

13, 14, 17, 18

D0-D7

Data inputs

2, 5, 6, 9,

12, 15, 16, 19

Q0-Q7

Inverting 3-State outputs

Clock pulse input (active rising
edge)

GND

Ground (0V)

Positive supply voltage

FUNCTION TABLE

INPUTS

INTERNAL

OUTPUTS

OPERATING

MODE

REGISTER

Q0 Q7

L
L

Latch and read
register

Hold

H
H

Z
Z

Disable
outputs

H = High voltage level
h

= High voltage level one set-up time prior to the Low-to-High

clock transition

= Low voltage level

= Low voltage level one set-up time prior to the Low-to-High

clock transition

NC= No change
X = Don't care
Z = High impedance "off" state

= Low-to-High clock transition

= not a Low-to-High clock transition

LOGIC DIAGRAM

CP Q

SV00168

Philips Semiconductors

Product specification

74LVT534

3.3V Octal D-type flip-flop, inverting (3-State)

1998 Feb 19

ABSOLUTE MAXIMUM RATINGS

1, 2

SYMBOL

PARAMETER

CONDITIONS

RATING

UNIT

DC supply voltage

0.5 to +4.6

DC input diode current

< 0

DC input voltage

0.5 to +7.0

DC output diode current

< 0

OUT

DC output voltage

Output in Off or High state

0.5 to +7.0

DC output current

Output in Low state

128

OUT

DC output current

Output in High state

stg

Storage temperature range

65 to 150

NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the

device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability.

2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction

temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150

3. The input and output negative voltage ratings may be exceeded if the input and output clamp current ratings are observed.

RECOMMENDED OPERATING CONDITIONS

SYMBOL

PARAMETER

LIMITS

UNIT

SYMBOL

PARAMETER

MIN

MAX

UNIT

DC supply voltage

2.7

3.6

Input voltage

5.5

High-level input voltage

2.0

Input voltage

0.8

High-level output current

Low-level output current

Low-level output current; current duty cycle

50%, f

1kHz

Input transition rise or fall rate; outputs enabled

ns/V

amb

Operating free-air temperature range

+85

Philips Semiconductors

Product specification

74LVT534

3.3V Octal D-type flip-flop, inverting (3-State)

1998 Feb 19

DC ELECTRICAL CHARACTERISTICS

LIMITS

SYMBOL

PARAMETER

TEST CONDITIONS

Temp = -40

C to +85

UNIT

MIN

TYP

MAX

Input clamp voltage

= 2.7V; I

= 18mA

0.9

1.2

= 2.7 to 3.6V; I

= 100

-0.2

-0.1

High-level output voltage

= 2.7V; I

= 8mA

2.4

2.5

= 3.0V; I

= 32mA

2.0

2.2

= 2.7V; I

= 100

0.1

0.2

= 2.7V; I

= 24mA

0.3

0.5

Low-level output voltage

= 3.0V; I

= 16mA

0.25

0.4

= 3.0V; I

= 32mA

0.3

0.5

= 3.0V; I

= 64mA

0.4

0.55

RST

Power-up output low voltage

= 3.6V; I

= 1mA; V

= GND or V

0.13

0.55

= 0 or 3.6V; V

= 5.5V

Input leakage current

= 3.6V; V

= V

or GND

Control pins

0.1

In ut leakage current

= 3.6V; V

= V

Data pins

0.1

= 3.6V; V

= 0

Data ins

-5

OFF

Output off current

= 0V; V

or V

= 0 to 4.5V

100

= 3V; V

= 0.8V

150

HOLD

Bus Hold current A inputs

= 3V; V

= 2.0V

150

= 0V to 3.6V; V

= 3.6V

500

Current into an output in the
High state when V

> V

= 5.5V; V

= 3.0V

125

PU/PD

Power up/down 3-State output
current

1.2V; V

= 0.5V to V

; V

= GND or V

;

OE/OE = Don't care

100

OZH

3-State output High current

= 3.6V; V

= 3V; V

= V

or V

OZL

3-State output Low current

= 3.6V; V

= 0.5V; V

= V

or V

CCH

= 3.6V; Outputs High, V

= GND or V

CC,

O =

0.13

0.19

CCL

Quiescent supply current

= 3.6V; Outputs Low, V

= GND or V

CC,

O =

CCZ

= 3.6V; Outputs Disabled; V

= GND or V

CC,

O =

0.13

0.19

Additional supply current per
input pin

= 3V to 3.6V; One input at V

-0.6V,

Other inputs at V

or GND

0.1

0.2

NOTES:
1. All typical values are at V

= 3.3V and T

amb

= 25

2. This is the increase in supply current for each input at the specified voltage level other than V

or GND

3. This parameter is valid for any V

between 0V and 1.2V with a transition time of up to 10msec. From V

= 1.2V to V

= 3.3V

0.3V a

transition time of 100

sec is permitted. This parameter is valid for T

amb

= 25

C only.

4. Unused pins at V

or GND.

5. For valid test results, data must not be loaded into the flip-flops (or latches) after applying power.
6. I

CCZ

is measured with outputs pulled to V

or down to GND.

7. This is the bus hold overdrive current required to force the input to the opposite logic state.

AC CHARACTERISTICS

GND = 0V, t

= t

= 2.5ns, C

= 50pF, R

= 500

; T

amb

= 40

C to +85

LIMITS

SYMBOL

PARAMETER

WAVEFORM

= 3.3V

0.3V

= 2.7V

UNIT

MIN

TYP

MAX

MIN

MAX

MAX

Maximum clock frequency

100

150

100

PLH

PHL

Propagation delay
CP to Qn

1.7
2.2

3.0
3.5

4.6
4.9

5.4
5.2

PZH

PZL

Output enable time
to High and Low level

3
4

1.7
1.7

3.2
3.3

5.4
5.5

7.0
5.6

PHZ

PLZ

Output disable time
from High and Low level

3
4

2.1
2.1

3.5
3.4

3.0
4.8

5.3
4.6

NOTE:
1. All typical values are at V

= 3.3V and T

amb

= 25

Philips Semiconductors

Product specification

74LVT534

3.3V Octal D-type flip-flop, inverting (3-State)

1998 Feb 19

AC SETUP REQUIREMENTS

GND = 0V, t

= t

= 2.5ns, C

= 50pF, R

= 500

; T

amb

= 40

C to +85

LIMITS

SYMBOL

PARAMETER

WAVEFORM

= 3.3V

0.3V

= 2.7V

UNIT

MIN

TYP

MIN

(H)

(L)

Setup time, High or Low, Dn to CP

2.0
2.6

1.0
1.3

2.0
3.2

(H)

(L)

Hold time, High or Low, Dn to CP

0
0

1.3
0.9

0
0

(H)

(L)

CP pulse width High or Low

1.5
4.2

0.8
3.0

1.5
5.0

AC WAVEFORMS

= 1.5V, V

= GND to 2.7V

tw(H)

tw(L)

1.5V

1/fMAX

tPHL

tPLH

1.5V

2.7V

SV00044

Waveform 1. Propagation Delay, Clock Input to Output, Clock

Pulse Width, and Maximum Clock Frequency

ÉÉÉ

ÉÉÉÉÉÉÉÉ

ÉÉÉ

ts(H)

th(H)

ts(L)

th(L)

1.5V

2.7V

NOTE: The shaded areas indicate when the input is permitted

to change for predictable output performance.

SV00108

Waveform 2. Data Setup and Hold Times

PZH

PHZ

0.3V

1.5V

2.7V

SV00119

Waveform 3. 3-State Output Enable Time to High Level and

Output Disable Time from High Level

tPZL

tPLZ

+0.3V

1.5V

2.7V

SV00120

Waveform 4. 3-State Output Enable Time to Low Level and

Output Disable Time from Low Level

Philips Semiconductors

Product specification

74LVT534

3.3V Octal D-type flip-flop, inverting (3-State)

1998 Feb 19

TEST CIRCUIT AND WAVEFORM

AMP (V)

NEGATIVE
PULSE

10%

90%

AMP (V)

POSITIVE
PULSE

90%

10%

tTHL (tF)

tTLH (tR)

tTHL (tF)

tTLH (tR)

= 1.5V

Input Pulse Definition

DEFINITIONS

Load resistor; see AC CHARACTERISTICS for value.

Load capacitance includes jig and probe capacitance;
see AC CHARACTERISTICS for value.

Termination resistance should be equal to Z

OUT

pulse generators.

INPUT PULSE REQUIREMENTS

FAMILY

74LVT

PULSE

GENERATOR

VIN

D.U.T.

VOUT

VCC

Test Circuit for 3-State Outputs

6.0V

SV00092

Open

GND

SWITCH POSITION

TEST

SWITCH

PLH

PHL

PLZ

PZL

PHZ

PZH

Open

GND

Amplitude

Rep. Rate

2.7V

10MHz

500ns

2.5ns

Philips Semiconductors

Product specification

74LVT534

3.3V Octal D-type flip-flop, inverting (3-State)

yyyy mmm dd

Definitions

Short-form specification -- The data in a short-form specification is extracted from a full data sheet with the same type number and title. For
detailed information see the relevant data sheet or data handbook.

Limiting values definition -- Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one
or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or
at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended
periods may affect device reliability.

Application information -- Applications that are described herein for any of these products are for illustrative purposes only. Philips
Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or
modification.

Disclaimers

Life support -- These products are not designed for use in life support appliances, devices or systems where malfunction of these products can
reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications
do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application.

Right to make changes -- Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard
cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no
responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these
products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless
otherwise specified.

Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Sunnyvale, California 940883409
Telephone 800-234-7381

print code

Date of release: 05-96

Document order number:

9397-750-03536

Philips

Semiconductors

Data sheet
status

Objective
specification

Preliminary
specification

Product
specification

Product
status

Development

Qualification

Production

Definition

[1]

This data sheet contains the design target or goal specifications for product development.
Specification may change in any manner without notice.

This data sheet contains preliminary data, and supplementary data will be published at a later date.
Philips Semiconductors reserves the right to make chages at any time without notice in order to
improve design and supply the best possible product.

This data sheet contains final specifications. Philips Semiconductors reserves the right to make
changes at any time without notice in order to improve design and supply the best possible product.

Data sheet status

[1]

Please consult the most recently issued datasheet before initiating or completing a design.

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