King Billion Electronics Co., Ltd

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HF88M32B

January 16, 2004

1

V1.11

This specification is subject to change without notice. Please contact sales person for the latest version before use.

- Table of Contents –

1.

General Description_______________________________________________________________2

2.

Features ________________________________________________________________________2

3.

Functional block diagram __________________________________________________________3

4.

Pin Description __________________________________________________________________3

5.

Pad Location ____________________________________________________________________5

6.

Device Operation _________________________________________________________________6

6.1.

Retrieve data in Data File ____________________________________________________________8

6.2.

Loading the Address Counter _________________________________________________________8

6.3.

Sequential Read Mode and Auto Increment of Address Counter ____________________________8

6.4.

Output data to External I/O __________________________________________________________9

6.5.

Reading Input pin status _____________________________________________________________9

6.6.

Retrieving the Contents of Extension I/O registers________________________________________9

7.

Timing Diagrams _________________________________________________________________9

7.1.

Data File Read Cycle _______________________________________________________________10

7.2.

Interrupted by I/O when Loading Address Counter______________________________________11

7.3.

Setting and Reading the I/O Mode for P0 and P1 ________________________________________11

7.4.

Reading P0 and P1 in Mixed-I/O Mode ________________________________________________12

7.5.

Reading the input pins ______________________________________________________________12

7.6.

Output to P0 and P1 Ports___________________________________________________________13

8.

Absolute Maximum Rating ________________________________________________________13

9.

AC/DC Electrical Characteristics ___________________________________________________13

10.

Application Circuit Diagram _____________________________________________________14

11.

Updated History _______________________________________________________________15