SAA5249 Ver la hoja de datos (PDF) - Philips Electronics

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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

MIN.

TYP.

MAX.

UNIT

I2C-BUS

tLOW

tHIGH

tSU;DAT

tHD;DAT

tSU;STO

tBUF

tHD;STA

tSU;STA

clock LOW period

clock HIGH period

data set-up time

data hold time

set-up time from clock HIGH to

STOP

START set-up time following a

STOP

START hold time

START set-up time following

clock LOW-to-HIGH transition

4

−

−

µs

4

−

−

µs

250

−

−

ns

170

−

−

ns

4

−

−

µs

4

−

−

µs

4

−

−

µs

4

−

−

µs

Notes

1. This current is the maximum allowed into the inputs when line and field flyback signals are connected to these inputs.

Series current limiting resistors must be used to limit the input currents to ±1 mA.

2. RGBREF is the positive supply pin for the RGB output pins and it must be able to source the IOH current from the

R, G and B pins. The leakage specification on RGBREF only applies when there is no current load on the RGB pins.

1996 Nov 07

15

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