Datasheet M74HC540M1R Specification

OCTAL BUS BUFFERWITH3 STATE OUTPUTS

HC540: INVERTED - H C541 NON INVERTED

.HIGH SPEED

tPD= 10 ns(TYP.) at VCC=5V

.LOWPOWERDISSIPATION

ICC=4µA (MAX.) at TA=25oC

.HIGH NOISEIMMUNITY

V

NIH=VINL

=28%VCC(MIN.)

.OUTPUT DRIVE CAPABILITY

15 LSTTL LOADS

.SYMMETRICALOUTPUT IMPEDANCE

|IOH|=IOL=6 mA(MIN)

.BALANCEDPROPAGATION DELAYS

t

PLH=tPHL

.WIDE OPERATINGVOLTAGE RANGE

VCC(OPR)= 2Vto 6V

.PIN ANDFUNCTION COMPATIBLE

WITH 54/74LS540/541

DESCRIPTION

The M54/74HC540 and HC541 are high speed
CMOS OCTAL BUS BUFFERS (3-STATE)
fabricated in silicongateC2MOStechnology. They
have the same high speed performance of LSTTL
combined withtrue CMOSlowpower consumption.
TheHC540isaninvertingbufferandHC541isa non
inverting buffer.
The 3 STATE control gate operates as a two input
AND suchthatif either G1andG2 arehigh,all eight
output are in the high impedance state. In order to

M54HC540/541
M74HC540/541

B1R

(PlasticPackage)

M1R

(MicroPackage)

ORDER CODES :

M54HC X XXF 1 R M74HC XXXM1R
M74HC X XXB1R M 74HCXX X C1R

enhance PC board layout, the HC540 and HC541
offers a pinout having inputs and outputs on
opposite sides of thepackage.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.

F1R

(CeramicPackage)

C1R

(Chip Carrier)

PIN CONNECTION (top view)

October 1993

HC541HC540

1/12

M54/M74HC540/541

CHIP CARRIER

INPUT AND OUTPUT EQUIVALENT CIRCUIT

HC541HC54 0

PIN DESCRIPTION (HC540)

PIN No SYMBOL NAME AND FUNCTION

1, 19 1G, G2 Output Enable Inputs

2, 3, 4, 5,

6, 7, 8, 9

18, 17, 16,
15, 14, 13,

12, 11

10 GND Ground (0V)
20 V

2/12

A1 to A8 Data Inputs

Y1 to Y8 Bus Outputs

CC

Positive Supply Voltage

PIN DESCR IPTION (HC541)

PIN No SYMBOL NAME AND FUNCTION

1, 19 1G, G2 Output Enable Inputs

2, 3, 4, 5,

6, 7, 8, 9

18, 17, 16,
15, 14, 13,

12, 11

10 GND Ground (0V)
20 V

A1 to A8 Data Inputs

Y1 to Y8 Bus Outputs

CC

Positive Supply Voltage

IEC LOGIC SYMBOLS

TRUTH TABLE

M54/M74HC540/ 541

HC541HC540

INPUT OUTPUT

G1 G2 An Yn (HC540) Yn (HC541)

HXXZZ
XHXZZ

LLHLH

X: ”H” or”L”
Z: High impedance

LLLHL

CIRCUIT SCHEMATIC (Per Circuit)

HC540 HC541

3/12

M54/M74HC540/541

ABSOLU TE MAXI MU M RAT I NG S

Symbol Parameter Value Unit

V

CC

V

V

O

I

IK

I

OK

I

O

I

or I

CC

P

D

T

stg

T

AbsoluteMaximumRatings arethosevalues beyondwhichdamage tothedevicemayoccur.Functionaloperationunder theseconditionsisnotimplied.
(*)500 mW: ≅ 65oC derateto 300 mWby 10mW/oC: 65oCto85oC

RECO MM ENDED OPERAT IN G CO NDI TIONS

Symbol Parameter Value Unit

V

CC

V

I

V

O

T

op

t

r,tf

Supply Voltage -0.5 to +7 V
DC Input Voltage -0.5 to VCC+ 0.5 V

I

DC Output Voltage -0.5 to VCC+ 0.5 V
DC Input Diode Current ± 20 mA
DC Output Diode Current ± 20 mA
DC Output Source Sink Current Per Output Pin ± 35 mA
DC VCCor Ground Current ± 70 mA

GND

Power Dissipation 500 (*) mW
Storage Temperature -65 to +150
Lead Temperature (10sec) 300

L

Supply Voltage 2 to 6 V
Input Voltage 0 to V
Output Voltage 0 to V
Operating Temperature: M54HC Series

M74HC Series

CC
CC

-55 to +125

-40 to +85

Input Rise and Fall Time VCC= 2 V 0 to 1000 ns

V

= 4.5 V 0 to 500

CC

V

= 6 V 0 to 400

CC

o

C

o

C

V
V

o

C

o

C

4/12

DC SPECIFICATIONS

Symbol Parameter

V

V

V

V

I

I

High Level Input

IH

Voltage

Low Level Input

IL

Voltage

High Level

OH

Output Voltage

Low Level Output

OL

Voltage

I

Input Leakage

I

Current
3 State Output

OZ

Off State Current
Quiescent Supply

CC

Current

M54/M74HC540/ 541

Test Conditions Value

T

=25oC

V

CC

(V)

A

54HC and 74HC

Min. Typ. Max. Min. Max. Min. Max.

2.0 1.5 1.5 1.5

4.5 3.15 3.15 3.15

6.0 4.2 4.2 4.2

2.0 0.5 0.5 0.5

4.5 1.35 1.35 1.35

6.0 1.8 1.8 1.8

2.0

4.5 4.4 4.5 4.4 4.4

6.0 5.9 6.0 5.9 5.9

4.5 I

6.0 I

2.0

4.5 0.0 0.1 0.1 0.1

6.0 0.0 0.1 0.1 0.1

4.5 I

6.0 I

6.0

6.0

=

V

I

IO=-20 µA

V

IH

or

V

IL

=-6.0 mA 4.18 4.31 4.13 4.10

O

=-7.8 mA 5.68 5.8 5.63 5.60

O

V

=

I

IO=20µA

V

IH

or

V

IL

= 6.0 mA 0.17 0.26 0.33 0.40

O

= 7.8 mA 0.18 0.26 0.33 0.40

O

VI=VCCor GND ±0.1 ±1 ±1 µA

V

I=VIH

or V

VO=VCCor GND

1.9 2.0 1.9 1.9

0.0 0.1 0.1 0.1

IL

6.0 VI=VCCor GND 4 40 80 µA

-40 to 85oC
74HC

-55 to 125oC
54HC

Unit

±0.5 ±5 ±10 µA

V

V

V

V

5/12

M54/M74HC540/541

AC ELECTRICAL CHARACTERISTICS (CL=50pF,Inputtr=tf=6ns)

Test Conditions Value

T

=25oC

Symbol Parameter

t
t

TLH
THL

Output Transition
Time

V

C

CC

(V)

L

(pF)

2.0
50

4.5 7121918

A

54HC and 74HC

Min. Typ. Max. Min. Max. Min. Max.

25 60 75 90

6.0 6101315

t

PLH

t

PHL

Propagation
Delay Time

2.0
50

4.5 10 17 21 26

40 85 105 130

6.0 9141822

2.0

150

4.5 14 23 29 35

56 115 145 175

6.0 12 20 25 30

t

t

PZH

PZL

Output Enable
Time

2.0
50 RL=1KΩ

4.5 13 22 28 33

47 110 140 165

6.0 11 19 24 28

2.0

150 R

4.5 17 27 34 41

=1KΩ

L

61 135 170 205

6.0 14 23 29 35

t

t

PHZ

PLZ

Output Disable
Time

2.0
50 RL=1KΩ

4.5 15 22 28 33

52 110 140 165

6.0 13 19 24 28

C

C

PD

Input Capacitance 5 10 10 10 pF

IN

(*) Power Dissipation

31

Capacitance

(*) CPDisdefined as the value ofthe IC’sinternal equivalent capacitance which is calculated from theoperatingcurrent consumption withoutload.
(Referto Test Circuit). Average operting currentcan be obtained bythefollowingequation. ICC(opr) = CPD•VCC•fIN+ICC/8(per gate)

-40 to 85oC
74HC

-55 to 125oC
54HC

Unit

ns

ns

ns

ns

ns

ns

pF

TEST CIRCUIT ICC(Opr.)

HC540

6/12

SWITCHING CHARACTERISTICS TEST CIRCUIT

HC540

M54/M74HC540/ 541

HC541

7/12

M54/M74HC540/541

Plastic DIP20 (0.25) MECHANICAL DATA

DIM.

MIN. TYP. MAX. MIN. TYP. MAX.

a1 0.254 0.010

B 1.39 1.65 0.055 0.065

b 0.45 0.018

b1 0.25 0.010

D 25.4 1.000
E 8.5 0.335

e 2.54 0.100

e3 22.86 0.900

F 7.1 0.280

I 3.93 0.155

L 3.3 0.130

Z 1.34 0.053

mm inch

8/12

P001J

Ceramic DIP20 MECHANICAL DATA

M54/M74HC540/ 541

DIM.

MIN. TYP. MAX. MIN. TYP. MAX.

A 25 0.984
B 7.8 0.307
D 3.3 0.130
E 0.5 1.78 0.020 0.070

e3 22.86 0.900

F 2.29 2.79 0.090 0.110

G 0.4 0.55 0.016 0.022

I 1.27 1.52 0.050 0.060

L 0.22 0.31 0.009 0.012

M 0.51 1.27 0.020 0.050

N1 4° (min.), 15° (max.)

P 7.9 8.13 0.311 0.320

Q 5.71 0.225

mm inch

P057H

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M54/M74HC540/541

SO20 MECHANICAL DATA

DIM.

MIN. TYP. MAX. MIN. TYP. MAX.

A 2.65 0.104
a1 0.10 0.20 0.004 0.007
a2 2.45 0.096

b 0.35 0.49 0.013 0.019

b1 0.23 0.32 0.009 0.012

C 0.50 0.020

c1 45° (typ.)

D 12.60 13.00 0.496 0.512

E 10.00 10.65 0.393 0.419

e 1.27 0.050

e3 11.43 0.450

F 7.40 7.60 0.291 0.299

L 0.50 1.27 0.19 0.050

M 0.75 0.029

S8°(max.)

mm inch

10/12

P013L

PLCC20 MECHANICAL DATA

M54/M74HC540/ 541

DIM.

MIN. TYP. MAX. MIN. TYP. MAX.

A 9.78 10.03 0.385 0.395

B 8.89 9.04 0.350 0.356

D 4.2 4.57 0.165 0.180
d1 2.54 0.100
d2 0.56 0.022

E 7.37 8.38 0.290 0.330

e 1.27 0.050

e3 5.08 0.200

F 0.38 0.015
G 0.101 0.004
M 1.27 0.050

M1 1.14 0.045

mm inch

P027A

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M54/M74HC540/541

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consequences of useof suchinformation nor forany infringement of patents or other rights of third parties which may results from its use. No
license is granted byimplication or otherwiseunder any patentor patentrights ofSGS-THOMSON Microelectronics.Specificationsmentioned
in this publication are subjectto changewithout notice. This publication supersedes andreplaces all information previously supplied.
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written approval of SGS-THOMSON Microelectonics.

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