Datasheet 74lv423 DATASHEETS (Philips)

INTEGRATED CIRCUITS

74LV423

Dual retriggerable monostable multivibrator with reset

Product specification 1997 Feb 04 IC24 Data Handbook

 

Philips Semiconductors Preliminary specification

Dual retriggerable monostable multivibrator with reset

FEA TURES

•Optimized for Low Voltage applications: 1.0 to 5.5V

•Accepts TTL input levels between V

•Typical V

T

amb

•Typical V

T

amb

(output ground bounce)  0.8V @ VCC = 3.3V,

OLP

= 25°C

(output VOH undershoot)  2V @ VCC = 3.3V,

OHV

= 25°C

= 2.7V and VCC = 3.6V

CC

•DC triggered from active HIGH or active LOW inputs

•Retriggerable for very long pulses up to 100% duty factor

•Direct reset terminates output pulses

•Schmitt-trigger action on all inputs except for the reset input

•Output capability: standard (except for nR

•I

category: MSI

CC

EXT/CEXT

QUICK REFERENCE DATA

GND = 0V; T

SYMBOL

t

PHL/tPLH

C

I

C

PD

NOTES:

is used to determine the dynamic power dissipation (PD in µW)

1. C

PD

= CPD  V

P

D

= input frequency in MHz; CL = output load capacity in pF;

f

i

= output frequency in MHz; VCC = supply voltage in V;

f

o

 (C

= 25°C; tr = tf 2.5 ns

amb

CC

2

 V

L

 fo) = sum of the outputs.

CC

PARAMETER CONDITIONS TYPICAL UNIT

Propagation delay

, nB to nQ, nQ

nA nRD to nQ, nQ

Input capacitance 3.5 pF Power dissipation capacitance per flip-flop VCC = 3.3V, VI = GND to V

2

 fi  (CL  V

2

 fo) where:

CC

)

DESCRIPTION

The 74LV423 is a low-voltage Si-gate CMOS device and is pin and function compatible with the 74HC/HCT423.

The 74LV423 is a dual retriggerable monostable multivibrator with output pulse width control by three methods. The basic pulse time is programmed by selection of an external resistor (R capacitor (C Figure 1. Once triggered, the basic output pulse width may be extended by retriggering the gated active LOW-going edge input (nA process, the output pulse period (nQ = HIGH, nQ made as long as desired. Alternatively, an output delay can be terminated at any time by a LOW-going edge on input nR also inhibits the triggering. Figures 2 and 3 illustrate pulse control by retriggering and early reset. The basic output pulse width is essentially determined by the values of the external timing components R see Figure 6. When C width is defined as: t t

W

C

EXT

nB inputs makes the circuit highly tolerant of slower input rise and fall times.

CL = 15pF

= 3.3V

V

CC

= 5KΩ

R

EXT

= 0pF

C

EXT

74L V423

) and

). They are normally connected as shown in

EXT

) or the active HIGH-going edge input (nB). By repeating this

and C

EXT

= pulse width in ns; R

= external capacitor in pF. Schmitt-trigger action in the nA and

CC

. For pulse width when C

EXT

 10,000pF, the typical output pulse

EXT

= 0.45  R

W

= external resistor in KΩ; and

EXT

1

 C

EXT

16 13

17 pF

EXT

= LOW) can be

EXT

(typ.), where

EXT

, which

D

<10000pF,

ns ns

ORDERING INFORMATION

PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA PKG. DWG. #

16-Pin Plastic DIL –40°C to +125°C 74LV423 N 74LV423 N SOT38-1 16-Pin Plastic SO –40°C to +125°C 74LV423 D 74LV423 D SOT109-1 16-Pin Plastic SSOP Type II –40°C to +125°C 74LV423 DB 74LV423 DB SOT338-1 16-Pin Plastic TSSOP Type I –40°C to +125°C 74L V423 PW 74LV423PW DH SOT403-1

1997 Feb 04 853–1913 17724

2

Philips Semiconductors Preliminary specification

Dual retriggerable monostable multivibrator with reset

PIN CONFIGURATION

1A

1

1B

2

1R

3

D

1Q

4 5

2Q

6

2C

EXT

GND

7 8

2R

EXT/CEXT

PIN DESCRIPTION

NUMBER

1,9 1A, 2A

2,10 1B, 2B 3,11 1RD, 2RDDirect reset LOW

4, 12 1Q, 2Q Outputs (active LOW)

7 2R 8 GND Ground (0V)

13, 5 1Q, 2Q Outputs (active HIGH) 14, 6

15 1R 16 V

SYMBOL FUNCTION

Trigger inputs (negative-edge triggered)

Trigger inputs (positive-edge triggered)

EXT/CEXT

1C

EXT,

2C

EXT

EXT/CEXT

CC

External resistor/capacitor connection

External capacitor connection External resistor/capacitor connection

Positive supply voltage

LOGIC SYMBOL (IEEE/IEC)

14 15

1 2

3

6 7

9 10

CX RCX

&

R

CX RCX

&

V

16

CC

15

1R

EXT/CEXT

14

1C

EXT

13

1Q

12

2Q

11

2R

D

10

2B

9

2A

SV00096

13

4

5

12

LOGIC SYMBOL

1

1A 2A

9 2

1B

10

2B

3

1R

D

11

2R

D

FUNCTIONAL DIAGRAM

1

1A 2A

9

1B

2

2B

10

1R

3

D

2R

11

D

74L V423

14

1C

EXT

6

2C

EXT

1R

EXT/CEXT

2R

EXT/CEXT

S

Q

T

Q

R

D

1R

EXT/CEXT

2R

EXT/CEXT

S

Q

T

Q

R

D

15

7

1Q

13

2Q

5

1Q

4

2Q

12

SV00160

14

1C

EXT

2C

6

EXT

15

7

1Q

13

2Q

5

1Q

4

2Q

12

SV00162

1997 Feb 04

11

R

SV00161

3

Philips Semiconductors Preliminary specification

Dual retriggerable monostable multivibrator with reset

LOGIC DIAGRAM

R

D

RR

CLCLV

CC

V

CC

CL

R

nR

V

CC

74L V423

EXT/CEXT

Q

A

B

It is recommended that Pin 6 (2C

CLCL

) and Pin 14 (1C

EXT

FUNCTION TABLE

INPUTS OUTPUTS

nR

D

L X X L H X H X L * H * X X L L * H * H L ↑ H ↓ H

NOTES:

* If the monostable was triggered before this condition was

established, the pulse will continue as programmed. H = HIGH voltage level L = LOW voltage level X = don’t care

↑ = LOW-to-HIGH transition ↓ = HIGH-to-LOW transition

= one HIGH level output pulse = one LOW level output pulse

nA nB nQ nQ

) by externally grounded to Pin 8 (GND)

EXT

C

EXT

to nC

EXT

(pin 14 or 6)

Figure 1. Timing Component Connection

V

CC

to nR

EXT/CEXT

(pin 15 or 7)

SV00163

R

EXT

SV00101

1997 Feb 04

4

Philips Semiconductors Preliminary specification

Dual retriggerable monostable multivibrator

74L V423

with reset

ABSOLUTE MAXIMUM RATINGS

In accordance with the Absolute Maximum Rating System (IEC 134). Voltages are referenced to GND (ground = 0V).

SYMBOL

I

V

CC

DC supply voltage –0.5 to +7.0 V DC input diode current VI < –0.5 or VI > VCC + 0.5V 20 mA

IK

DC output diode current VO < –0.5 or VO > VCC + 0.5V 50 mA

OK

DC output source or sink current

I

– standard outputs

O

– bus driver outputs DC VCC or GND current for types with

I

,

I

T

GND

stg

– standard outputs – bus driver outputs

CC

Storage temperature range –65 to +150 °C Power dissipation per package

P

TOT

– plastic DIL – plastic mini-pack (SO) – plastic shrink mini-pack (SSOP and TSSOP)

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 input and output voltage ratings may be exceeded if the input and output current ratings are observed.

PARAMETER CONDITIONS RATING UNIT

1, 2

–0.5V < VO < VCC + 0.5V

for temperature range: –40 to +125°C above +70°C derate linearly with 12 mW/K above +70°C derate linearly with 8 mW/K above +60°C derate linearly with 5.5 mW/K

25 35

50 70

750 500 500

mA

mW

RECOMMENDED OPERATING CONDITIONS

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNIT

V

CC

V

T

amb

tr, t

NOTE:

1. The LV is guaranteed to function down to V

DC supply voltage See Note 1 1.2 3.3 5.5 V Input voltage 0 – V

I

Output voltage 0 – V

O

Operating ambient temperature range in free air

Input rise and fall times except for

f

Schmitt-trigger inputs

= 1.0V (input levels GND or VCC); DC characteristics are guaranteed from VCC = 1.2V to VCC = 5.5V.

CC

See DC and AC

characteristics per device

VCC = 1.0V to 2.0V

= 2.0V to 2.7V

V

CC

= 2.7V to 3.6V

V

CC

= 3.6V to 5.5V

V

CC

–40 –40

– – –

– – – –

CC CC

+85

+125

500 200 100

50

V V

°C

ns/V

1997 Feb 04

5

Philips Semiconductors Preliminary specification

V

voltage all out uts

g

V

g

V

voltage; BUS driver

V

voltage all out uts

g

V

g

V

voltage; BUS driver

V

I

A

I

A

Dual retriggerable monostable multivibrator with reset

DC ELECTRICAL CHARACTERISTICS

Over recommended operating conditions. V oltages are referenced to GND (ground = 0V).

SYMBOL P ARAMETER TEST CONDITIONS

VCC = 1.2V 0.9 0.9

IH

HIGH level Input voltage

VCC = 2.0V 1.4 1.4 VCC = 2.7 to 3.6V 2.0 2.0 VCC = 4.5 to 5.5V 0.7V VCC = 1.2V 0.3 0.3

IL

LOW level Input voltage

VCC = 2.0V 0.6 0.6 VCC = 2.7 to 3.6V 0.8 0.8 VCC = 4.5 to 5.5 0.3V VCC = 1.2V; VI = VIH or V VCC = 2.0V; VI = VIH or V

OH

HIGH level output

;

V

VCC = 2.7V; VI = VIH or V

p

VCC = 3.0V; VI = VIH or V VCC = 4.5V; VI = VIH or V

OH

HIGH level output

e;

volta STANDARD outputs

HIGH level output

;

outputs

VCC = 3.0V; VI = VIH or V

VCC = 4.5V; VI = VIH or V VCC = 3.0V; VI = VIH or V

VCC = 4.5V; VI = VIH or V VCC = 1.2V; VI = VIH or V

VCC = 2.0V; VI = VIH or V

OL

LOW level output

;

V

VCC = 2.7V; VI = VIH or V

p

VCC = 3.0V; VI = VIH or V VCC = 4.5V; VI = VIH or V

LOW level output

e;

volta

OL

STANDARD outputs

LOW level output

OL

I

OZ

;

outputs Input leakage

current 3-State output

OFF-state current Quiescent supply

current; SSI

CC

Quiescent supply current; flip-flops

Quiescent supply current; MSI

CC

Quiescent supply current; LSI

VCC = 3.0V; VI = VIH or V

VCC = 4.5V; VI = VIH or V VCC = 3.0V; VI = VIH or V

VCC = 4.5V; VI = VIH or V VCC = 5.5V; VI = VCC or GND 1.0 1.0 µA

VCC = 5.5V; VI = VIH or V VO = VCC or GND

VCC = 5.5V; VI = VCC or GND; IO = 0 20.0 40

VCC = 5.5V; VI = VCC or GND; IO = 0 20.0 80

VCC = 5.5V; VI = VCC or GND; IO = 0 20.0 160

VCC = 5.5V; VI = VCC or GND; IO = 0 500 1000

IL; IL; IL; IL; IL;

IL;

IL; IL;

IL; IL; IL; IL;

IL;

Additional

CC

quiescent supply current

VCC = 2.7V to 3.6V; VI = VCC – 0.6V 500 850 µA

∆I

NOTE:

1. All typical values are measured at T

amb

= 25°C.

–IO = 100µA 1.2 –IO = 100µA 1.8 2.0 1.8 –IO = 100µA 2.5 2.7 2.5 –IO = 100µA 2.8 3.0 2.8 –IO = 100µA 4.3 4.5 4.3

–IO = 6mA 2.40 2.82 2.20

–IO = 12mA 3.60 4.20 3.50 –IO = 8mA 2.40 2.82 2.20

–IO = 16mA 3.60 4.20 3.50 IO = 100µA 0

IO = 100µA 0 0.2 0.2 IO = 100µA 0 0.2 0.2 IO = 100µA 0 0.2 0.2 IO = 100µA 0 0.2 0.2

IO = 6mA 0.25 0.40 0.50

IO = 12mA 0.35 0.55 0.65 IO = 8mA 0.20 0.40 0.50

IO = 16mA 0.35 0.55 0.65

–40°C to +85°C –40°C to +125°C

MIN TYP

CC

LIMITS

1

MAX MIN MAX

0.7V

CC

5 10 µA

74L V423

UNIT

0.3V

CC

V

µ

1997 Feb 04

6

Philips Semiconductors Preliminary specification

CONDITION

P

Figure 4

nR

D

nQ

R

P

Figure 4

nR

D

nQ

R

P

Figure 4

nR

D

(reset)

R

P

Figure 4

nR

D

(reset)

R

t

gg

Figure 4

ns

t

gg

Figure 4

ns

t

Figure 3

ns

t

nQ

HIGH

Figures 2, 3

µs

Q

t

nQ

HIGH

Figures 2, 3

ns

Q

t

gg

Figure 2

ns

Dual retriggerable monostable multivibrator with reset

AC CHARACTERISTICS

GND = 0V; tr = tf ≤ 2.5ns; CL = 50pF; RL = 1KΩ

SYMBOL PARAMETER WAVEFORM

VCC(V) MIN TYP

1.2 150

t

PHL

t

PLH

t

PHL

t

PLH

W

ropagation delay

, nA, nB, to

ropagation delay

, nA, nB, to

ropagation delay

to nQ

ropagation delay

to nQ

Trigger pulse width nA = LOW

Trigger pulse width nB = HIGH

Reset pulse width nRD = LOW

Output pulse width

W

=

nQ = LOW

Output pulse width

W

rt

=

nQ = LOW

Retrigger time nA, nB

NOTES ON FOLLOWING PAGE

Figure 4

C

EXT

Figure 4

C

EXT

Figure 4

C

EXT

Figure 4

C

EXT

= 0pF = 5kΩ

2.0 51 95 116

2.7 38 70 85

3.0 to 3.6 30

4.5 to 5.5 20

1.2 150

2.0 51 95 116

2.7 38 70 85

3.0 to 3.6 30

4.5 to 5.5 20

1.2 120

2.0 41 77 92

2.7 30 56 68

3.0 to 3.6 24

4.5 to 5.5 18

1.2 120

2.0 41 77 92

2.7 30 56 68

3.0 to 3.6 24

4.5 to 5.5 18

2.0 30 40

2.7 25 30

3.0 to 3.6 20 25

4.5 to 5.5 15 20

2.0 30 40

2.7 25 30

3.0 to 3.6 20 6

4.5 to 5.5 15 20

2.0 36

2.7 30 40

3.0 to 3.6 25 30

4.5 to 5.5 20 25

2.0

2.7

3.0 to 3.6 450

4.5 to 5.5

2.0

2.7

3.0 to 3.6 75

4.5 to 5.5

2.0

2.7

3.0 to 3.6 30

4.5 to 5.5

74L V423

LIMITS

–40 to +85 °C –40 to +125 °C

1

MAX MIN MAX

2

56 68

3

38 45

2

56 68

3

38 45

2

45 54

3

34 41

2

45 54

3

34 41

2

25

UNIT

ns

1997 Feb 04

7

Philips Semiconductors Preliminary specification

CONDITION

Ext

resistor

3

C

g

Figure 6

3

No limits

F

Dual retriggerable monostable multivibrator with reset

AC CHARACTERISTICS (Continued)

GND = 0V; tr = tf ≤ 2.5ns; CL = 50pF; RL = 1KΩ

SYMBOL PARAMETER WAVEFORM

VCC(V) MIN TYP

1.2 20 1000

R

EXT

ernal timing

External timing capacitor

Figure 6

NOTES:

1. Unless otherwise stated, all typical values are at T

2. Typical value measured at V

3. Typical value measured at V

4. For other R

if C

EXT

where, t

and C

EXT

> 10 nF, the next formula is valid:

t

W W

R

EXT

K = constant = 0.45 for V

EXT

= K x R = output pulse width in ns; = external resistor in kΩ; C

The inherent test jig and pin capacitance at pins 15 and 7 (nR

= 3.3V.

CC

= 5.0V.

CC

combinations see Figure 6.

x C

EXT

(typ.)

EXT

= 5.0V and 0.48 for VCC = 2.0V .

CC

EXT

= 25°C.

amb

= external capacitor in pF;

5. The time to retrigger the monostable multivibrator depends on the values of R

The output pulse width will only be extended when the time between the active-going edges of the

trigger pulses meets the minimum retrigger time.

> 10 pF, the next formula (at VCC = 5.0V) for the set-up time of a retrigger pulse is valid:

If C

EXT

where, t

The inherent test jig and pin capacitance at pins 15 and 7 (nR

= 30 + 0.19R x C-9 + 13 x R

t

rt

= retrigger time in ns;

rt

= external capacitor in pF;

C

EXT

= external resistor in kΩ.

R

EXT

1.05

(typ.)

6. When the device is powered up, initiate the device via a reset pulse, when C

2.0 5 1000

2.7 5 1000

3.0 to 3.6 2 1000

4.5 to 5.5 2 1000

2.0

2.7

3.0 to 3.6

4.5 to 5.5

EXT/CEXT

) is approximately 7 pF.

and C

EXT

) is approximately 7 pF.

< 50pF.

EXT

74L V423

LIMITS

–40 to +85 °C –40 to +125 °C

1

MAX MIN MAX

.

UNIT

kΩ

p

AC WAVEFORMS

VM = 1.5V at VCC  2.7V; VM = 0.5 VCC at VCC  2.7V.

and VOH are the typical output voltage drop that occur

V

OL

with the output load.

nB INPUT

t

W

INPUT

nA

t

rt

nQ OUTPUT

t

1997 Feb 04

W

Figure 2. Output pulse control using retrigger pulse;

nR

= HIGH.

D

t

W

nB INPUT

INPUT

nR

D

t

W

nQ OUTPUT

t

W

SV00139

t

W

t

W

SV00164

Figure 3. Output pulse control using reset input nRD;

nA

= LOW.

8

Philips Semiconductors Preliminary specification

Dual retriggerable monostable multivibrator with reset

nB INPUT

LOW)

(nA

nA INPUT (nB HIGH)

INPUT

nR

D

Q OUTPUT

V

M

t

W

t

W

t

PLH

V

M

t

PLH

74L V423

V

M

t

W

Q OUTPUT

t

W

V

M

TLH

t

THL

t

THL

t

TLH

t

PHL

t

PLH

t

PLH

t

W

t

PHL

Figure 4. Waveforms showing the input (nA, nB, nRD) to output (nQ, nQ) propagation delays, the output transition times,

and the input and output pulse widths.

SV00197

1997 Feb 04

9

Philips Semiconductors Preliminary specification

Dual retriggerable monostable multivibrator with reset

APPLICATION INFORMATION

0.8

‘K’ factor

0.4

0

1

024

3

(V)

V

CC

5

6

SV00185

Figure 5. HCT typical “k” factor as a function of VCC;

C

= 10 nF; RX = 10 kW to 100 kW.

X

Power-up considerations

When the monostable is powered-up it may produce an output pulse, with a pulse width defined by the values of R output pulse can be eliminated using the circuit shown in Figure 7.

74L V423

and CX, this

X

C

X

R

X

V

CC

nC

EXT

A B

“423”

RESET V

nR

EXT/CEXT

Q

CC

6

10

R

=

EXT

5

10

4

10

t

W

ns

3

10

2

10

0

110

10 10

100kW

50kW

2

(pF)

C

EXT

10kW

2kW

3

SV00141

Figure 6. Typical output pulse width as a function of the

external capacitor values at V

= 3.3V and T

CC

amb

= 25°C.

SV00166

Figure 7. Power-up output pulse elimination circuit

Power-down considerations

A large capacitor (C

) may cause problems when powering-down

X

the monostable due to the energy stored in this capacitor. When a system containing this device is power-down or a rapid decrease of V

to zero occurs, the monostable may sustain damage, due to the

CC

capacitor discharging through the input protection diodes. To avoid this possibility, use a damping diode (D

) preferably a germanium or

X

Schottky type diode able to withstand large current surges and connect as shown in Figure 8.

D

X

4

10

C

X

R

X

nR

EXT/CEXT

V

CC

SV00154

Figure 8. Power-down protection circuit

1997 Feb 04

10

Philips Semiconductors Preliminary specification

Dual retriggerable monostable multivibrator with reset

TEST CIRCUIT

V

CC

V

I

D.U.T.

R

T

Test Circuit for switching times

SWITCH POSITION

TEST S

t

PLH/tPHL

t

PLZ/tPZL

t

PHZ/tPZH

Open

2  V

GND

1

CC

PULSE

GENERATOR

V

CC

< 2.7V V

 4.5V

V

I

CC

2.7V2.7–3.6V V

CC

Figure 9. Load circuitry for switching times

74L V423

S

1

2  V

CC

Open

GND

R

V

O

C

L

R

= Load resistor; see AC CHARACTERISTICS for value.

L

C

= Load capacitance includes jig and probe capacitance:

L

See AC CHARACTERISTICS for value.

= Termination resistance should be equal to Z

R

T

pulse generators.

L

R

L

DEFINITIONS

OUT

of

SV00755

1997 Feb 04

11

Philips Semiconductors Preliminary specification

Dual retriggerable monostable multivibrator

74L V423

with reset

DIP16: plastic dual in-line package; 16 leads (300 mil); long body SOT38-1

1997 Feb 04

12

Philips Semiconductors Preliminary specification

Dual retriggerable monostable multivibrator

74L V423

with reset

SO16: plastic small outline package; 16 leads; body width 3.9 mm SOT109-1

1997 Feb 04

13

Philips Semiconductors Preliminary specification

Dual retriggerable monostable multivibrator

74L V423

with reset

SSOP16: plastic shrink small outline package; 16 leads; body width 5.3 mm SOT338-1

1997 Feb 04

14

Philips Semiconductors Preliminary specification

Dual retriggerable monostable multivibrator

74L V423

with reset

TSSOP16: plastic thin shrink small outline package; 16 leads; body width 4.4 mm SOT403-1

1997 Feb 04

15

Philips Semiconductors Preliminary specification

Dual retriggerable monostable multivibrator with reset

DEFINITIONS

74L V423

Data Sheet Identification Product Status Definition

Objective Specification

Preliminary Specification

Product Specification

Philips Semiconductors and Philips Electronics North America Corporation reserve 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. Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification.

LIFE SUPPORT APPLICA TIONS Philips Semiconductors and Philips Electronics North America Corporation Products are not designed for use in life support appliances, devices, or systems where malfunction of a Philips Semiconductors and Philips Electronics North America Corporation Product can reasonably be expected

to result in a personal injury. Philips Semiconductors and Philips Electronics North America Corporation customers using or selling Philips Semiconductors and Philips Electronics North America Corporation Products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors and Philips Electronics North America Corporation for any damages resulting from such improper use or sale.

Philips Semiconductors 811 East Arques Avenue P.O. Box 3409 Sunnyvale, California 94088–3409 Telephone 800-234-7381

Formative or in Design

Preproduction Product

Full Production

This data sheet contains the design target or goal specifications for product development. Specifications 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 changes 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.

 Copyright Philips Electronics North America Corporation 1997

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1997 Feb 04

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