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Fabricante

SAA5249

Integrated VIP and Teletext with Background Memory Controller (IVT1.1BMCX)

Philips Electronics 

Philips Semiconductors

Integrated VIP and Teletext with

Background Memory Controller

Preliminary specification

SAA5249

SYMBOL

PARAMETER

CONDITIONS

D0 TO D3

VIL

LOW level input voltage

VIH

HIGH level input voltage

ILI

input leakage current

Ci

input capacitance

VOL

LOW level output voltage

VOH

HIGH level output voltage

tr

output rise time

tf

output fall time

CL

load capacitance

Outputs

IOL = +1.6 mA

IOH = −0.2 mA

0.6 to 2.2 V

2.2 to 0.6 V

STTV

Gstt

gain of STTV relative to video

input

VTCS

VDCs

TCS amplitude

DC shift between TCS output and

nominal video output

IO

output drive current

CL

load capacitance

A0 TO A9 ADDRESS OUTPUT TO MEMORY A0 TO A9

VOL

LOW level output voltage

VOH

HIGH level output voltage

CL

load capacitance

tr

output rise time

tf

output fall time

IOL = +1.6 mA

IOH = −0.2 mA

0.6 to 2.2 V

2.2 to 0.6 V

R/W, CASO AND CAS1

VOL

LOW level output voltage

VOH

HIGH level output voltage

CL

load capacitance

tr

output rise time

tf

output fall time

IOL = +1.6 mA

IOH = −0.2 mA

0.6 to 2.2 V

2.2 to 0.6 V

MIN.

TYP.

MAX.

UNIT

−0.3

−

2.0

−

−10

−

−

−

0

−

2.4

−

−

−

−

−

−

−

+0.8

V

VDD + 0.5 V

+10

µA

10

pF

0.4

V

VDD

V

20

ns

20

ns

50

pF

0.9

1.0

1.1

0.2

0.3

0.45

V

−

−

0.15

V

−

−

3.0

mA

−

−

100

pF

0

−

2.4

−

−

−

−

−

−

−

0.4

V

VDD

V

50

pF

20

ns

20

ns

0

−

2.4

−

−

−

−

−

−

−

0.4

V

VDD

V

50

pF

20

ns

20

ns

1996 Nov 07

12

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