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

RAS

CAS

ADDRESS

WE

DATA INPUT

DATA OUTPUT

t RC

t RAS

tf

t RCD

t RSH

t CAS

t CSH

tASR

t RAH

ROW

tASC

COLUMN

t WCS

t CAH

t WCH

t DS

t DH

DATA VALID

high impedance

t RP

t CRP

MBA731

Fig.8 DRAM interface timing; write cycle.

1996 Nov 07

19

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