SAA5497 datasheet(10/33 Pages) PHILIPS

Part #	SAA5497

Description	Economy teletext and TV microcontrollers

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Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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10 / 33 page

February 1995

10

Philips Semiconductors

Preliminary speciﬁcation

One page Economy Teletext/TV

microcontroller

SAA5290

Digital input/outputs

P0.0 TO P0.4, P0.7, P1.0 TO P1.5, P2.0 TO P2.7 AND P3.0 TO P3.5

VIL

LOW level input voltage

−0.3

−

0.2VDD − 0.1 V

VIH

HIGH level input voltage

0.2VDD + 0.9 −

VDD + 0.3

V

CI

input capacitance

−−

4pF

VOL

LOW level output voltage

IOL = 3.2 mA

0

−

0.45

V

CL

load capacitance

−−

50

pF

P0.5 AND P0.6

VIL

LOW level input voltage

−0.3

−

0.2VDD − 0.1 V

VIH

HIGH level input voltage

0.2VDD + 0.9 −

VDD + 0.3

V

CI

input capacitance

−−

4pF

VOL

LOW level output voltage

IOL =10mA

0

−

0.45

V

CL

load capacitance

−−

50

pF

P1.6 AND P1.7

VIL

LOW level input voltage

−0.3

−

+1.5

V

VIH

HIGH level input voltage

3.0

−

VDD + 0.3

V

CI

input capacitance

−−

5pF

VOL

LOW level output voltage

IOL = 3 mA

0

−

0.5

V

CL

load capacitance

−−

400

pF

tf

output fall time

between 3 and 1 V

−−

200

ns

Analog inputs

CVBS0 AND CVBS1

Vsync

sync voltage amplitude

0.1

0.3

0.6

V

Vvid(p-p)

video input voltage amplitude

(peak-to-peak value)

0.7

1.0

1.4

V

Zsource

source impedance

−−

250

Ω

VIH

HIGH level input voltage

3.0

−

VDD + 0.3

V

|ZI|

input impedance

2.5

5.0

−

k

Ω

CI

input capacitance

−−

10

pF

IREF

Rgnd

resistor to ground

−

27

−

k

Ω

RGBREF (note 1)

VI

input voltage

−0.3

−

VDD

V

II

DC input current

−−

12

mA

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

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