iv

PRELIMINARY

CONTENTS

TABLES

1.

Description of Product Nomenclature .................................................................................. 2

2.

80296SA 100-pin QFP Pin Assignment ............................................................................... 4

3.

80296SA 100-pin QFP Pin Assignment Arranged by Functional Categories ...................... 5

4.

Signal Descriptions .............................................................................................................. 6

5.

80296SA Address Map ...................................................................................................... 13

6.

DC Characteristics Over Specified Operating Conditions .................................................. 14

7.

AC Timing Symbol Definitions............................................................................................ 19

8.

AC Characteristics the 80C296SA Will Meet, Multiplexed Bus Mode ................................ 20

9.

AC Characteristics the External Memory System Must Meet, Multiplexed Bus Mode ....... 21

10.

AC Characteristics the 80C296SA Will Meet, Demultiplexed Bus Mode ........................... 24

11.

AC Characteristics the External Memory System Must Meet, Demultiplexed Bus Mode .. 25

12.

HOLD#, HLDA# Timings .................................................................................................... 29

13.

Serial Port Timing — Synchronous Mode 0 ....................................................................... 30

14.

External Clock Drive........................................................................................................... 31

15.

Thermal Characteristics ..................................................................................................... 33