ST M54HC125 User Manual

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RAD-HARD QUAD BUS BUFFER (3-STATE)

■ HIGH SPEED:

t

= 8ns (TYP.) at VCC=6V

PD

■ LOW POWER DISSIPATION:

I

=4µA(MAX.) at TA=25°C

CC

■ HIGH NOISE IMMUNITY:

V

NIH=VNIL

■ SYMMETRICAL OUTPUT IMPEDANCE:

|I

|=IOL=6mA(MIN)

OH

■ BALANCED PROPAGATION DELAYS:

t

≅ t

PLH

■ WIDE OPERATING VOLTAGE RANGE:

V

(OPR) = 2V to 6V

CC

■ PIN AND FUNCTION COMPATIBLE WITH

54 SERIES 125

■ SPACE GRADE-1: ESA SCC QUALIFIED

■ 50 kradQUALIFIED, 100 krad AVAILABLE ON

REQUEST

■ NO SEL UNDER HIGH LET HEAVY IONS

IRRADIATION

■ DEVICE FULLY COMPLIANT WITH

SCC-9401-039

= 28% VCC(MIN.)

PHL

M54HC125

DILC-14 FPC-14

ORDER CODES

PACKAGE FM EM

DILC M54HC125D M54HC125D1

FPC M54HC125K M54HC125K1

The dev ice requires the 3-STATE control i nput G
to be set high to place the output into the high
impedance state.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.

DESCRIPTION

The M54HC125 is an high speed CMOS QUAD
BUFFER (3-STATE) fabricated with silicon gate

2

C

MOS technology.

PIN CONNECTION

1/9March 2004

M54HC125

IEC LOGIC SYMBOLS

INPUT AND O UTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION

PIN N° SYMBOL NAME AND FUNCTION

1, 4, 10, 13 1G

2, 5, 9, 12 1A TO 4A Data Inputs
3, 6, 8, 11 1Y TO 4Y Data Outputs

7 GND Ground (0V)

14

TO 4G Output Enable Input

V

CC

Positive Supply Voltage

TRUTH TABLE

AG

XHZ

LLL

HLH

Y

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

V

V

V

I

I

OK

I

or I

I

CC

P

T

T

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied

Supply Voltage

CC

DC Input Voltage -0.5 to VCC+0.5

I

DC Output Voltage -0.5 to VCC+0.5

O

DC Input Diode Current

IK

DC Output Diode Current
DC Output Current

O

DC VCCor Ground Current

GND

Power Dissipation

D

Storage Temperature

stg

Lead Temperature (10 sec)

L

-0.5 to +7 V
V
V

± 20 mA
± 20 mA
± 35 mA
± 70 mA

420 mW

-65 to +150 °C
265 °C

2/9

M54HC125

RECOMMENDED OPERATING CONDITIONS

Symbol Parameter Value Unit

V

V
V
T

t

r,tf

DC SPECIFICATIONS

Symbol Parameter

V

IH

V

IL

V

OH

V

OL

I

I

I

OZ

I

CC

Supply Voltage

CC

Input Voltage 0 to V

I

Output Voltage 0 to V

O

Operating Temperature

op

Input Rise and Fall Time VCC=2.0V

=4.5V

V

CC

V

=6.0V

CC

Test Condition Value

= 25°C

T

A

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

High Level Input

V

CC

(V)

2.0 1.5 1.5 1.5

Voltage

6.0 4.2 4.2 4.2

Low Level Input

2.0 0.5 0.5 0.5

Voltage

6.0 1.8 1.8 1.8

High Level Output
Voltage

Low Level Output
Voltage

Input Leakage
Current

High Impedance
Output Leakage
Current

Quiescent Supply
Current

2.0

4.5

6.0

4.5

6.0

2.0

4.5

6.0

4.5

6.0

6.0

6.0

6.0

IO=-20 µA

=-20 µA

I

O

I

=-20 µA

O

I

=-6.0 mA

O

=-7.8 mA

I

O

IO=20 µA
I

=20 µA

O

=20 µA

I

O

=6.0 mA

I

O

=7.8 mA

I

O

I=VIH

or GND

or V

IL

V

I=VCC

V

VO=VCCor GND

V

I=VCC

or GND

1.9 2.0 1.9 1.9

4.4 4.5 4.4 4.4

5.9 6.0 5.9 5.9

4.18 4.31 4.13 4.10

5.68 5.8 5.63 5.60

0.0 0.1 0.1 0.1

0.0 0.1 0.1 0.1

0.0 0.1 0.1 0.1

0.17 0.26 0.33 0.40

0.18 0.26 0.33 0.40

± 0.1 ± 1 ± 1 µA

± 0.5 ± 5 ± 10 µA

44080µA

2to6 V

CC
CC

-55 to 125 °C
0 to 1000 ns

0 to 500 ns
0 to 400 ns

-40 to 85°C -55 to 125°C

V
V

Unit

V4.5 3.15 3.15 3.15

V4.5 1.35 1.35 1.35

V

V

3/9

M54HC125

AC ELECTRICAL CHARACTERISTICS (Input tr=tf=6ns)

Test Condition Value

Symbol Parameter

t

TLHtTHL

t

PLHtPHL

t

PZLtPZH

Output Transition
Time

Propagation Delay
Time

High Impedance
Output Enable
Time

t

PLZtPHZ

High Impedance
Output Disable
Time

C

V

CC

(V)

L

(pF)

2.0
50

6.0 5 10 13 15

2.0
50

6.0 8 13 16 19

2.0

150

6.0 11 18 22 27

2.0
50

L

=1KΩ

R

6.0 8 13 16 19

2.0

R

150

=1KΩ

L

6.0 11 18 22 27

2.0

R

50

=1KΩ

L

6.0 10 14 17 20

T

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

= 25°C

A

-40 to 85°C -55 to 125°C

20 60 75 90

36 75 95 110

52 105 130 160

36 75 95 110

52 105 130 160

48 80 100 120

Unit

ns4.5 6 12 15 18

ns4.5 9 15 19 22

ns4.5 13 21 26 32

ns4.5 9 15 19 22

ns4.5 13 21 26 32

ns4.5 12 16 20 24

CAPACITIVE CHARACTERISTICS

Test Condition Value

= 25°C

Symbol Parameter

V

CC

(V)

C

C

1) CPDis defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by thefollowing equation.I

Input Capacitance

IN

Power Dissipation

PD

Capacitance (note1)5.0 35 pF

5.0 5 10 10 10 pF

T

A

-40 to 85°C -55 to 125°C

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

CC(opr)=CPDxVCCxfIN+ICC

/4(per buffer)

Unit

4/9

TEST CIRCUIT

TEST SWITCH

t

PLH,tPHL

t

PZL,tPLZ

t

PZH,tPHZ

CL= 50pF/150pF or equivalent (includes jig and probe capacitance)

=1KΩ or equivalent

R

1

R

T=ZOUT

of pulse generator (typically 50Ω))

M54HC125

Open

V

CC

GND

WAVEFORM 1: PROPAGATION DELAY TIMES (f=1MHz; 50% duty cycle)

5/9

M54HC125

WAVEFORM 2: OUTPUT ENABLE AND DISABLE TIMES (f=1MHz; 50% duty cycle)

6/9

M54HC125

DILC-14 MECHANICAL DATA

mm. inch

DIM.

MIN. TYP MAX. MIN. TYP. MAX.

A 2.1 22.54 0.083 0.100
a1 3.00 3.70 0.118 0.146
a2 0.63 0.88 1.14 0.025 0.035 0.045

B 1.82 2.03 2.39 0.072 0.080 0.094

b 0.40 0.45 0.50 0.016 0.018 0.020
b1 0.20 0.254 0.30 0.008 0.010 0.012

D 18.79 19.00 19.20 0.740 0.748 0.756

e 7.36 7.62 7.87 0.290 0.300 0.310
e1 2.54 0.100
e2 15.11 15.24 15.37 0.595 0.600 0.605
e3 7.62 7.87 8.12 0.300 0.310 0.320

F 7.11 7.75 0.280 0.305

I 3.70 0.146
K 10.90 12.1 0.429 0.476
L 1.14 1.27 1.5 0.045 0.050 0.059

0016173H

7/9

M54HC125

FPC-14 MECHANICAL DATA

mm. inch

DIM.

MIN. TYP MAX. MIN. TYP. MAX.

A 6.75 6.91 7.06 0.266 0.272 0.278

B 9.76 9.95 10.14 0.384 0.392 0.399

C 1.49 1.95 0.059 0.077

D 0.10 0.127 0.15 0.004 0.005 0.006

E 7.50 7.62 7.75 0.295 0.300 0.305

F 1.27 0.050

G 0.38 0.43 0.48 0.015 0.017 0.019

H 6.0 0.236

L 18.75 22.0 0.738 0.866

M 0.38 0.015

N 4.31 0.170

F

H

A

1

H

G

814

7

D

N

L

8/9

E

B

M

C

016029E

M54HC125

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consequences of use of such inform ation nor fo r an y infring ement of p atents or o ther rights of third p arties which may r esult f rom
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